Focal Sentence Examples
The instrument has a focal length of 54 ft.
But the eye is tolerant of small changes in the focal adjustment which sensibly affect the scale-value.
The tangent at any point bisects the angle between the focal distances of the point, and the normal is equally inclined to the focal distances.
They are placed at a distance apart less than the focal length of a, so that the wires of the micrometer, which must be distinctly seen, are beyond b.
Two tangents from any point are equally inclined to the focal distance of the point.
The harsher measures which about that time began to be adopted towards his co-religionists in France are usually assigned as the motive of this step. He now devoted himself during six years to the production of lenses of enormous focal distance, which, mounted on high poles, and connected with the eye-piece by means of a cord, formed what were called "aerial telescopes."
A volume entitled Opera posthuma (Leiden, 1703) contained his "Dioptrica," in which the ratio between the respective focal lengths of object-glass and eye-glass is given as the measure of magnifying power, together with the shorter essays De vitris figurandis, De corona et parheliis, &c. An early tract De ratiociniis tin ludo aleae, printed in 16J7 with Schooten's Exercitationes mathematicae, is notable as one of the first formal treatises on the theory of probabilities; nor should his investigations of the properties of the cissoid, logarithmic and catenary curves be left unnoticed.
By the principle of energy the illumination over the entire focal plane must be equal to that over the diffracting area; and thus, in accordance with the suppositions by which (3) was obtained, its value when integrated from E= co to = -1-x, and from n = - oo to n = -1-oo should be equal to ab.
The function of a lens in forming an image is to compensate by its variable thickness the differences of phase which would otherwise exist between secondary waves arriving at the focal point from various parts of the aperture.
Throughout the operation of increasing the focal length, the resolving power of the instrument, which depends only upon the aperture, remains unchanged; and we thus arrive at the rather startling conclusion that a telescope of any degree of resolving power might be constructed without an object-glass, if only there were no limit to the admissible focal length.
AdvertisementThe distance f i, which the actual focal length must exceed, is given by d (f1 2 R2) x; so that f1 = 2 R2/X (1) Thus, if X = p j, R= i ?, we find f1= 800 inches.
As the minimum focal length increases with the square of the aperture, a quite impracticable distance would be required to rival the resolving power of a modern telescope.
On the other hand it is not necessary to reset the telescope after each reversal of the segments.4 When Bessel ordered the Konigsberg heliometer, he was anxious to have the segments made to move in cylindrical slides, of which the radius should be equal to the focal length of the object-glass.
Struve also points out that by attaching a fine scale to the focusing slide of the eye-piece, and knowing the coefficient of expansion of the metal tube, the means would be provided for determining the absolute change of the focal length of the object-glass at any time by the simple process of focusing on a double star.
The limitation of power is introduced as in all optical instruments, by the finiteness of the length of a wave of light which causes the image of an indefinitely narrow slit to spread out over a finite width in the focal plane of the observing telescope.
AdvertisementThe collimator of a spectroscope should be detached, or moved so as to admit of the introduction of an auxiliary slit at a distance from the collimator lens equal to its focal length.
In its simplest form it consists of a direct-vision spectroscope, having an adjustable slit (called "camera slit"), instead of an eyepiece, in the focal plane of the observing telescope.
This forms an image of the solar spectrum in its focal plane on the camera slit (1).
A cross-hair, in the focal plane of an eyepiece, is then moved horizontally until it coincides with the line in question.
The line FL perpendicular to the axis, G D and passing through the focus, is the semilatus rectum, the latus rectum being the focal chord parallel to the directrix.
AdvertisementAny line parallel to the axis is a diameter, and the parameter of any diameter is measured by the focal chord drawn FIG.
The sharpness of image in Kepler's telescope is very inferior to that of the Galilean instrument, so that when a high magnifying power is required it becomes essential to increase the focal length.
James Bradley, on 27th December 1722, actually measured the diameter of Venus with a telescope whose objectglass had a focal length of 2124 ft.
Huygens contrived some ingenious arrangements for directing such telescopes towards any object visible in the heavens - the focal adjustment and centring of the eyepiece being preserved by a braced rod connecting the objectglass and eye-piece.
When the axis of the eye-lens coincides with that of the object-glass, and the focal point of the eye-lens is coincident with the principal focus of the object-lens, parallel rays.
AdvertisementThe magnifying power obviously depends on the proportion of the focal length of the object-lens to that of the eye-lens, that is, magnifying power where F is the focal length of the object-lens and e that of the eye-lens.
Consequently, for a certain focal length, much deeper curves must be resorted to if the new glasses are to be employed; this means not only greater difficulties in workmanship, but also greater thickness of glass, which militates against the chance of obtaining large disks quite free from striae and perfect in their state of annealing.
But while an achromatic combination of o 60 and 0.102 alone will yield an objective whose focal length is only 1.28 times the focal length of the negative or extra dense flint lens, the triple combination will be found to yield an objective whose focal length is 73 times as great as the focal length of the negative light flint lens.
Hence impossibly deep curvatures would be required for such a triple objective of any normal focal length.
This is such a practical drawback that the separation is generally 4ths or $ths of the theoretical, and then the primary image viewed by the eye piece may be rather outside the field-lens, which is a great practical advantage, especially when a reticule has to be mounted in the primary focal plane, although the edge of the field is not quite achromatic under these conditions.
The focal adjustment is accomplished by the screw S, which acts on a slide carrying an arm to which the mirror B is attached.
The magnifying power of the telescope is = Ff /ex, where F and f are respectively the focal lengths of the large and the small mirror, e the focal length of the eye-piece, and x the distance between the principal foci of the two mirrors (=Ff in the diagram) when the instrument is in adjustment for viewing distant objects.
Every time, therefore, that a speculum is repolished, the future quality of the instrument is at stake; its focal length will probably be altered, and thus the value of the constants of the micrometer also have to be redetermined.
Both telescopes have the same focal length, viz.
In this case the image is formed without secondary magnification and the focal length is 25 ft.
In this case the equivalent focal length is 150 ft.
Two " astigmatic image surfaces " correspond to one object plane; and these are in contact at the axis point; on the one lie the focal lines of the first kind, on the other those of the second.
If, in the first place, monochromatic aberrations be neglected - in other words, the Gaussian theory be accepted - then every reproduction is determined by the positions of the focal planes, and the magnitude of the focal lengths, or if the focal lengths, as ordinarily happens, be equal, by three constants of reproduction.
For example, it is possible, with one thick lens in air, to achromatize the position of a focal plane of the magnitude of the focal length.
For infinitely distant objects the radius of the chromatic disk of confusion is proportional to the linear aperture, and independent of the focal length (vide supra," Monochromatic Aberration of the Axis Point "); and since this disk becomes the less harmful with an increasing image of a given object, or with increasing focal length, it follows that the deterioration of the image is proportional to the ratio of the aperture to the focal length, i.e.
If a constant of reproduction, for instance the focal length, be made equal for two colours, then it is not the same for other colours, if two different glasses are employed.
In the neighbourhood of 550 pu the tangent to the curve is parallel to the axis of wave-lengths; and the focal length varies least over a fairly large range of colour, therefore in this neighbourhood the colour union is at its best.
Should there be in two lenses in contact the same focal lengths for three colours a, b, and c, i.e.
While London is naturally the principal focal point of the English railway system, the development of through connexions between the chief lines by way of the metropolis is very small.
The circular cubic and the bicircular quartic, together with the Cartesian (being in one point of view a particular case thereof), are interesting curves which have been much studied, generally, and in reference to their focal properties.
These rays come to a focus at a point F lying in the focal plane of the telescope.
Metrical relations between the axes, eccentricity, distance between the foci, and between these quantities and the co-ordinates of points on the curve (referred to the axes and the centre), and focal distances are readily obtained by the methods of geometrical conics or analytically.
Of the properties of a tangent it may be noticed that the tangent at any point is equally inclined to the focal distances of that point; that the feet of the perpendiculars from the foci on any tangent always lie on the auxiliary circle, and the product of these perpendiculars is constant, and equal to the product of the distances of a focus from the two vertices.
All the rays through a given point in the first principal focal plane of the anterior system of lenses traverse the plate as a parallel beam and reunite at the corresponding point of the second focal plane of the posterior system, each in its passage being divided into two by the plate having a given relative retardation.
A web in the focal plane of telescope marks the point in the field at which the bands are to be made to disappear; this is effected by turning the polarizer by means of a rack and pinion worked by an arm from the observer's end of the instrument.
This is effected by the power of accommodation of the eye, which can so alter the focal length of its crystalline lens that images of objects at different distances can be produced rapidly and distinctly one after another upon the retina.
The eye is strained in bringing its focal length to the smallest possible amount, and when this strain is long continued it may cause pain.
Since H' P = F 0, = y, from the focal length of the simple microscope, the visual angle w' is given by tan w'/y=I/f'=V, (I) in which f', = H' F', is the image-side focal length (see Lens).
Since the lens is bounded by air, the imageand object-side focal lengths f' and f are equal.
In addition it will be supposed that the centre of the pupil of the observer coincides with the back focal point of the system.
Doublets, &'c. - To remove the errors which the above lenses showed, particularly when very short focal lengths were in question, lens combinations were adopted.
Triplets are employed when the focal length of the simple microscope was less than in.
Let O01=y, O'01' =y', the focal distance of the image F I 'O' =A, and the image-side focal length f l ', then the magnification M =y /y=o/,/1' (3) The distance A is called the " optical tube length."
A series of objectives with short focal lengths are available, which permit the placing of a liquid between the cover-slip and the front lens of the objective; such lenses are known as " immersion systems "; objectives bounded on both sides by air are called " dry systems."
In immersion systems the object-side focal length is greater than the imageside focal length.
This is the case if the image O'OI' lies in the front focal plane of the eyepiece.
In this case the optical tube length equals the distance of the adjacent focal planes of the two systems, which equals the distance of the image-side focus of the objective F 1 ' from the object-side focus of the eyepiece F2.
The image viewed through the eyepiece appears then to the observer under the angle w", and as with the single microscope tan w" = I /f 2 ' (4) where f' 2 is the image-side focal length of the eyepiece.
The size of the imago on the focal plane is always equal to its actual size, and is independent of the distance of the object from the plane focused for.
To ensure the telecentric transmission, the diaphragm in the back focus of the objective may be replaced by a diaphragm in the front focal plane of the condenser, supposing that uniformly illuminated objects are being dealt with; for in this case all the principal rays in the object-space are transmitted parallel to the axis.
The plane in the object conjugate to the focal plane of the eye-piece is the plane FIG.
As the pencils used in the representations are of wide aperture on the object-side, only such points as are proportionately very near the focal plane can produce such small dispersion circles on the plane focused for, that they, so far as the objectiveand eyepiece-magnification permit, appear as points to the eye.
If the obliquity of illumination be so great that the principal maximum passes through the outermost edge of the objective, while a spectrum of 1st order passes the opposite edge, so that in the back focal plane the diffraction phenomenon shown in fig.
If this object be viewed by the objective, so that at least the diffraction spectra of 1st order pass the finer divisions, then the corresponding diffraction phenomenon in the back focal plane of the objective has the appearance shown in fig.
If one cuts out by a diaphragm in the back focal plane of the objective all diffraction spectra except the principal maximum, one sees in the image a field divided into two halves, which show with different clearness, but no banding.
The cutting off of the chief maximum can be effected by a suitable diaphragm in the back focal plane of the objective.
With the .orthogonal arrangement for illuminating and observing the beam of light traverses an extremely fine slit through a well-corrected system, whose optic axis is perpendicular to the axis of the microscope; the system reduces the dimensions of the beam to about 2 to 4 in the focal plane of the objective.
The lens nearer the eye, which has about the same focal length as the collective lens, is distant from it by about its focal length.
By the magnification of the objective is meant the ratio of the distance of distinct vision to the focal length of the objective.
The distance of the concave mirror from the stage plate is about equal to its focal length.
By a correct choice of the focal length of the illuminating lens in relation to the focal length of the mirror, it is possible to choose the size of the image of the source of light so that the whole object-field is uniformly lighted.
Beck, which can be conveniently fitted in and used for objectives with different focal lengths.
In the lower focal plane of the eyepiece, at the spot where the real image which the objective forms of the object arises, a glass plate is introduced on which are two fine cross lines or even two very thin threads.
The size of these circles depends, in the case of equal tube lengths, only on the type of the objective, and not on the focal length, exact execution being assumed.
The size of these details in the image depends only on the magnification of the objective, M and can by appropriate choice of the focal length of the objective be brought to the right value.
Strong systems produce in the proximity of their back focal plane an image of the scale, which can be inspected with a weak auxiliary microscope, and the length of the visible part of the graduation determined.
The magnification of a microscope is determined from the focal lengths of the two optical systems and the optical tube length, for N = 250 A/fi'f2 To determine the optical tube length 0, it is necessary to know the position of the focal planes of the objective and of the ocular.
If one focuses an auxiliary microscope, carried in the inner tube, on the image situated in the back focal plane of the objective of a distant object, and then on the dust particles lying on a slide pressed against the end of the outer tube, the displacement of the auxiliary microscope gives the distance of the back focal plane of the objective from the end of the outer tube.
To determine the position of the anterior focal plane of the eyepiece, the eyepiece is placed on the stage with the eye-lens downwards.
This gives the distance of the anterior focal plane of the eyepiece from the bottom edge of the setting of the eyepiece and consequently also of the edge of the eyepiece carried by the upper end of the tube.
It There are many methods for determining the focal length of the objective.
The objective to be examined is placed on the stage, and in the manner just shown, the distance of the focal plane from the edge of the fittings or to the surface plane of the front lens is determined.
The same method can be used to determine the focal length of the eyepiece.
The focal length of an objective can be more simply determined by placing an objective micrometer on the stage and reproducing on a screen some yards away by the objective which is to be examined.
If the size of the image of a known interval of the objective micrometer is determined by an ordinary scale, and the distance of the image from the focal plane of the objective belonging to it is measured, then the focal length can be calculated from the ratio y/y'=fl', in which y is the size of the object, y' that of the image, and xi' the distance of the image from the focal plane belonging to it.
The first system is the study of protein modules which mediate transient associations at sites of focal adhesion.
Dr. Stefan Arold Interactions of focal Adhesion kinase The interaction of focal adhesion kinase The interaction of focal adhesion kinase with fyn.
Seizures and focal neurological deficits were the main clinical features observed in patients with intracranial cavernous angiomas.
An extensive patio area provides space for community events and the recently restored bandstand and ornamental fountain provide focal points within the gardens.
Display Screen Technologies The introduction of this new technology revitalizes whole class teaching with the traditional blackboard replaced by a new focal point.
There are just ten bedrooms, and the inn's focal point is the restaurant, where you savor creative cuisine.
This total includes all dyads in the group, not only focal females.
Focal cortical dysplasia may result in refractory partial seizures.
The patients all had focal arm dystonia or writer's cramp.
Adult-onset primary dystonia This is a rare subtype of focal dystonia.
Late-onset primary torsion dystonia or focal dystonia is inherited in a more complex manner than the early-onset dystonia.
This is particularly true of the early onset epilepsy syndromes, both those that are focal and those that are generalized in onset.
The focal point of the room is the new marble style feature fireplace with living flame open grate fire.
Diffuse or focal leakage can be identified by fundus fluorescein angiography (FFA ).
A cross can be seen in the back focal plane.
Local centers are typically also focal points for the community life of their areas.
A convex lens has a focal length of 150 mm.
The larger blocking filter allows you to extend the focal length without vignetting but does not enhance detail or lower the bandpass.
The EU should not (and cannot) become the focal point for social policy.
The exhibit had at its center a tall focal point, in the shape of a large spiral.
No overt language dysfunction was found in our population of 18 patients with focal ischemic lesions primarily affecting the right frontal or temporal lobes.
Renal disease is characteristic and the typical histological appearance is a focal segmental necrotising glomerulonephritis.
More subtle abnormalities such as focal nodular heterotopia and band heterotopia may only be apparent if optimal MRI techniques are used.
A remaining 5mm focus of focal nodular hyperplasia was not detected by either observer on any technique.
Focal or generalized gingival hyperplasia can occur, due to a chronic inflammatory response to plaque.
At post-mortem get enlarged lymph nodes (mesenteric and abdominal) and focal necrosis of the liver and spleen.
Air Support operations center The focal point for coordinating air support at corps is the air support operations center (ASOC ).
We wish to be the focal point for the venture capital industry's involvement in venture philanthropy.
The golden privet behind the seat in the garden was a real focal point.
The focal point of this family-run hotel is the atmospheric restaurant the regional cooking is justly renowned locally, with delicious truffle specialities.
Festival Time The Arts Center is also the focal point for the nationally renowned King's Lynn Festival each July.
In the 19th Century, Bala became the focal point of the religious revival in North Wales.
On 2 July 2003 at Kensington Town Hall, London, FOCAL will be holding a one-day seminar.
However, its very presence on the agenda provided a focal point for anti-war sentiment.
Trafalgar Square is still one of London's grandest architectural set pieces with its central focal point of Nelson's Column.
The shutter release is a metal focal plane shutter with vertical operation.
The focal point is a royal red deer stag.
The sitting room with focal feature of a wood-burning stove.
Broadway Cabinet - 50 & 100 Two simply stunning mirror cabinets designed to create the ultimate bathroom focal point.
Atrial tachycardia is focal in origin, commonly from muscle sleeves within the pulmonary veins.
A 100mm diameter, 500mm focal length refracting telescope was used, equipped with a solar filter.
The bustling town of Mansfield is the focal point for a compact district of 30 square miles.
Motor weakness was focal, usually unilateral, weakness (loss of power) of face, arm, hand, or leg.
With an old garden wall as a backdrop, a classical urn forms the focal point.
The spectacular waterfall in the town center provides a focal point.
Children's Activities The focal point is a splendid lake where you can try windsurfing or spend a quiet afternoon fishing.
He inserted a slip of metal, of variable breadth, at the focus of the telescope, and observed at what part it exactly covered the object under examination; knowing the focal length of the telescope and the width of the slip at the point observed, he thence deduced the apparent angular breadth of the object.
The focal length of the objective and the distance between the optical centre of the lens and the webs are so arranged that images of the divisions are formed in the plane of the webs, and the pitch of the screw is such that one division of the scale corresponds with some whole number of revolutions of the screw.
Any diameter is a mean proportional between the transverse axis and the focal chord parallel to the diameter.
If a retarding plate be now inserted so as to operate upon the pulses which come from one side of the grating, while leaving the remainder unaffected, we have to consider what happens at the focal point chosen.
Essentially the scale-value of the instrument depends on the relation of the focal From Engineering, vol.
For relatively short focal lengths a triple construction such as this is almost necessary in order to obtain an objective free from aberration of the 3rd order, and it might be thought at first that, given the closest attainable degree of rationality between the colour dispersions of the two glasses employed, which we will call crown and flint, it would be impossible to devise another form of triple objective, by retaining the same flint glass, but adopting two sorts of crown instead of only one, which would have its secondary spectrum very much further reduced.
The extension of the image away from the axis or size of field available for covering a photographic plate with fair definition is a function in the first place of the ratio between focal length and aperture, the longer focus having the greater relative or angular covering power, and in the second a function of the curvatures of the lenses, in the sense that the objective must be free from coma at the foci of oblique pencils or must fulfil the sine condition (see Aberration).
In the Ramsden eyepiece (see Microscope) the focal lengths of the two piano-convex lenses are equal, and their convexities are turned towards one another.
Gauss (Dioptrische Untersuchungen, Göttingen, 1841), named the focal lengths and focal planes, permits the determination of the image of any object for any system (see Lens).
By compounding two lenses or lens systems separated by a definite interval, a system is obtained having a focal length considerably less than the focal lengths of the separate systems. If f and f' be the focal lengths of the combination, and f2, f2 the focal lengths of the two components, and A the distance between the inner foci of the components, then f = - f,f2/4, f' =fi f27 0 (see Lens).
Festival Time The Arts Center is also the focal point for the nationally renowned King 's Lynn Festival each July.
Trafalgar Square is still one of London 's grandest architectural set pieces with its central focal point of Nelson 's Column.
The focal point is the dining room, the setting for dinners of delicious Catalan specialities.
The focal point of the proposed Spaceport Singapore will be suborbital spaceflights.
With nothing either to deflect or attract the telluric energies, the focal point is in the center of the floor of the quarry.
The waterfront promenade is another focal point of the town.
Children 's Activities The focal point is a splendid lake where you can try windsurfing or spend a quiet afternoon fishing.
The crib is often the focal point of the baby nursery and this is no different in a contemporary style nursery.
If you're a new couple and she's told you her favorite flower, you can demonstrate what a good listener you are by sending an arrangement with those as a focal point.
They can perk up a room, create a focal point, or make you feel better when you have the flu.
For many teens' rooms, the bed is the focal point.
Some of the better known niche brands are Focal, Audison, and MB Quart.
Your linens should provide a color base for your dinner ware and centerpiece and not be the focal point of your table.
Short focal lengths usually give your bright and clear images, but will have wide areas of view.
Never lose sight of the goal that the child's welfare is the focal point of the co-parenting arrangement.
U-shape - can be used in corners or in the middle of the room facing a focal point (such as a television or fireplace).
Just because you need to have a china cabinet that's on the small side, that doesn't mean that it can't be the focal point of the room.
Make the inspiration piece the focal point in the room and display it prominently.
You may want art and candles as focal points.
If you love country style interior design, a large butcher block table provides a place for family and friends to linger over home cooked meals while creating a focal point for your design.
Your bed will almost certainly be the focal point of your room, so choose the best shape for your space.
Arrange your furniture around a focal piece.
Interior design for living rooms requires a strong focal point.
Many living rooms feature a fireplace as a built-in focal point of the room.
If you have a fireplace, your furniture should be arranged with this focal point in mind.
As with any focal point, your furniture arrangement should focus around this entertainment center.
Those who are lucky enough to have an incredible view from their living room windows should consider allowing nature to be the focal point of the room.
In order for the outdoor view to be a focal point, the living room will require large windows, preferably floor to ceiling length.
Your bed will be the focal point of your room, so this is the space to go all out.
The focal point of David's "before" basement room was a wall size mural of a mountain and lake.
Bar area - Create a home game room that draws a crowd by including a serviceable bar which can also be a focal point.
Therefore, rather than purchasing pieces for children's rooms or to be tucked away in corners where they will never be seen, make these pieces a focal point of a room's design.
The key elements to any living room are conversation areas and focal points.
Paint a focal wall - For example, if you have decided to paint your master bedroom in a warm aqua color, paint the wall your bed rests against in a rich tan or beige color.
Grapevines and pine cones can also turn a drab window into a rustically beautiful focal point.
Paint one wall a bright color to set it aside as the focal point in the room.
Painting one wall a bright color may be just what your room needs to establish a focal point.
An accent wall behind a bed can set off the bed as the focal point in a teenager's room.
The fireplace, mantel and area above your fireplace probably create the focal point in your room.
You don't have to add a lot of items to your mantel to enhance your fireplace as a focal point.
While the "lived in" sort of living rooms may center around a TV, living rooms that tend towards the formal work best where there is a focal point for the room.
If you are lucky enough to have a fireplace in the living room, make that the focal point for the room and surround the furniture around it accordingly.
When you are choosing your furniture and other accessories, remember that your TV or projection screen is the focal point of the room.
Country French kitchen décor is often the focal point and center of this comfortable decorating style in a home.
The natural variances and gradations in the bamboo will create a visually interesting focal point.
Hang four, square mirrors together to create a focal point or mix a wrought iron mirror with a resin mirror to make a room feel more expansive.
Wrought iron pieces can serve as focal points or accent pieces.
Replicas of vintage sword designs can be found in all price ranges and then displayed as eye-catching focal points.
Not only is it instrumental in helping you get a decent night's sleep, something that doesn't come easy to so many people, it also serves as the focal point in a bedroom design.
The focal point of any bedroom is the bed.
When the electronics are off, you can close the cabinet doors and the large cabinet will serve as the room's focal point.
Paint the walls a dark rich hue like red, green, blue or chocolate and make the fireplace the focal point of the room.
Like any well designed interior, minimalist rooms should have a focal point.
In a small bathroom, art deco wall sconces can serve as the room's focal point.
One of the focal points in the bathroom is the basin or sink.
If the design of your basin or bath is understated, adding bold and angular brassware will help create a modern focal point in your bathroom.
Wall tapestries are a great addition and help to give a focal point to any room.
For this reason, modern decor often uses one large piece of art as a focal point in the room.
Wall designs can be the finishing touch in an almost complete interior, or can be the focal point of an entirely new decor.
The right piece can even be the focal point of your interior design scheme.
Pillows create the focal point for your bedroom.
Wicker headboards can become a focal point in your bedroom and a great place to start a room redesign.
The centerpiece you choose is the focal point of your Thanksgiving table decoration.
Since windows are usually a focal point of the bedroom, window treatments are very important.
Your furniture placement will be dictated somewhat by the focal point of the room.
If you have a fireplace with a decorative mantle, this will likely be your focal point.
A focal point can take the form of an important piece of furniture, such as a grand piano or a large and dynamic painting on the wall.
If entertainment is your primary past time, the television or entertainment center serves as the room's focal point.
Since the island is a natural focal point of the kitchen, the island lighting can be a natural design focal point as well.
If your backsplash is the focal of the room, choose a complementary color or material for the island light to tie the two together.
Do you want your mural to be a backdrop to the room, or the focal point?
Use mosaics all over your backsplash for a contemporary look, or create a focal point behind your cooktop with mosaic tiles while you use a more traditional tile along the counters.
A good headboard creates an instant focal point and allows you to add color and texture into your bedroom design.
Large medallions inlaid into the floor and centered below a light can be a wonderful focal point for guests as they enter the home.
If you use a fireplace as a focal point in the room, then one of the easiest layouts is to place two loveseats in front of it, facing each other.
Often, a beautiful area rug itself can become the focal point in the room.
Filled with red delicious apples, pomegranates or pears, it will make your table a focal point of simple elegance.
Think three - Taller items grouped in threes will create a focal point on your round table and add some elevation.
If you're creating fresh flower arrangements, remember that odd numbered focal flowers in an arrangement appear more symmetrical as a whole.
Scatter colorful sunflower tiles in a plain field for a subtle look, or use several larger tiles together behind the cooktop to make a focal point.
Sometimes a focal point in the room, such as a large piece of wall art can be the driving force behind your room's color scheme.
It may even become the focal point of the room.
Bring different colors or designs together in one tapestry to make a focal point in the room.
One of the first things you'll need to decide is where you want the focal point of the room to be.
For some living rooms, the focal point is the television or entertainment center.
Other focal points could include a fireplace, a large scenic window or an interesting collection or piece of artwork.
Once you have decided what the focal point of your living room is, you can then build a conversation area around the focal point.
If the focal point of the room is a fireplace, then you will arrange your conversation area in the vicinity of the fireplace.
Once installed, your Empire chandelier will be an instant focal point for all who enter your home.
Vibrant red lips will create a focal point on your face, so if you love your lips - paint them red.
The eyes can easily serve as the focal point for a dramatic look; play them up and keep everything else toned down to really draw the attention to your handiwork.
Consider pairing your pale face and lip stain with little else to create a creepy and dramatic focal point.
Determine whether you'd like your eyes or your lips to be the focal point of your face.
Don't make your cheeks the focal point of your look.
If you love your lips and want them to be the focal point of your face, you have numerous ways to highlight them.6.
The focal point can remain on the lips or on deeper shadow shades worn in the same look.
You still need a focal point when creating holiday makeup.
If your subject needs time to warm up, then start the session shooting with a longer focal length.
One special sticker could be the perfect focal point for your page.
Cut a chipboard frame to use as a mat for your focal point photo.
Paper frames for scrapbooks offer a way to draw attention to the focal point photo in your layout.
There's no rule that says you can't use a variety of colors, but using a few focal colors through your pages will help unify them visually.
This allows you to place more pictures on a page as well - you can use one larger photo as the focal point, with smaller complementary pictures surrounding it.
The trick to emphasizing your favorite focal point is to figure out your body shape prior to shopping for the perfect Homecoming dress.
This will make an elegant focal point for the room and ornaments can follow the theme or color scheme of your wedding.
The wedding cake is a primary focal point at the reception, and like all the other 'pieces' of your wedding and reception, you want it to be spectacular.
The wedding cake is usually the focal point of the reception.
Your wedding cake itself will be a focal point, but even more so during the cake cutting ceremony.
Fountain wedding cakes are elegant, beautiful, and a perfect way to showcase the cake as a primary focal point of the reception.
Choose one color as the main focal point, using the secondary colors as accents throughout bouquets, ceremony decorations, and reception decorations.
Location can be the focal point of other simple wedding reception ideas, too.
By coordinating all the ceremony decorations with the aisle as the focal point, couples will create an unforgettable location to share their unforgettable vows.
Head table wedding decorations make natural focal points for a reception.
Since the real focal point here is the blushing couple, decorations should not cover or obscure their faces.
Will this curtain make the shower a focal point of the room?
Tropical shower curtains are becoming popular focal points in many bathrooms, and decorating with a tropical theme lends a sense of tranquility to just about any room in your home.
Before you can begin, however, you need a focal point, and tropical shower curtains are an easy resource to use for inspiration.
Southwest-While much of the Southwest uses similar designs and focal points to those of the Old West, the Southwest is appealing for its use of colors as well.
Mix and match earth tones with colors taken from the rustic cabin shower curtain you've selected as your main focal point.
If your bathroom is lacking color, this shower curtain can create a focal point.
A fancy curtain can become the focal point in any bathroom.
A zebra print rug, ottoman, bedding, upholstered chair, or window treatment creates the prefect focal point in this style of room without moving away from the natural theme.
Zebra print window treatments will make any window a focal point.
There is no better way to showcase personal style in the powder room than by making a shower curtain the focal point.
Country plaid shower curtains make it easy to add an attractive focal point to your bathroom.
In fact, the shower curtain is the focal point of many bathrooms.
Some designs are quite conservative in the approach, incorporating color as the primary focal point and keeping imagery to a minimum.
In fact, a bedspread and its accompanying accessories are often the focal points of the room.
If your mermaid curtain is particularly eye-catching, colorful and decorative, then consider making that piece the focal point of the room.
If you want to play it safe with your unique shower curtain, make your curtain the focal point of the entire room.
Since the bed is such a prominent and focal point of most bedrooms, it stands to reason that the bedding you choose will stand out just as much.
Since comforters are often the focal point of the room, a large and gregarious print will take away from the rest of the room and give it a smaller even claustrophobic appearance and feel.
The Millennium class ships are the most extravagant of all, with extraordinary inner-lit onyx atrium staircases serving as a spectacular focal point and favorite photo location.
A focal point of most ships' spas is the enormous thalassotherapy pool - a saltwater hot tub that simultaneously harnesses the therapeutic benefits of saltwater, heat, and gentle massage.
Royal Caribbean often employs renowned artists to design focal points of their new vessels, such as the main pool area or adults-only Solarium.
Cabins are generally minimalist, with the highlight of each stateroom being the signature "Tranquility Bed" - a restful focal point with an extra-thick mattress, luxury sheets, down duvets, and abundant throw pillows.
A formal dry garden could be the focal point of your landscape, or the style of the garden could be conveyed through the use of areas of sand and gravel.
A greenhouse can be a focal decorative part of your current garden or hidden behind the shed.
Making small raised island flower beds creates focal points throughout the garden.
Do I need to pinpoint light onto a specific focal point?
Since the sink is often the focal point of the kitchen, and since it will be used multiple times daily, you should consider the different types of sinks available as well as the accessories, cost, and basic maintenance needed.
Bathroom mirrors function as a focal point in any bathroom.
With designer track lighting, it is easy to reconfigure lighting when focal points shift.
Because of the ease with which you can move the lights, they are uniquely suited to art galleries and other places where the focal points move frequently.
A pool, hot tub, outdoor fireplace, or even a set of chairs can work as a focal point for your patio.
Lay a border of mosaic tile around your solid tiles to create a focal point for your bathroom.
Versatile and elegantly simple, Hampton Bay outdoor lighting post and path lights can add dimension to a walkway and create a focal point when included in a flowerbed or near an entry.
For a more dramatic focal point, a group of painted tiles can be included into a mural over the stove or kitchen sink.
If you don't have a fireplace, create a focal point with a custom-built entertainment center.
If you wish to illuminate one area versus another, change the focal point of the lighting in the room, or create a custom light source for the room - track lighting delivers.
It is not uncommon to use two materials or two patterns in one space, with a focal point behind the cooktop and a more simple pattern along the counters.
When installed properly, your metal backsplash is sure to become a focal point for the entire kitchen.
Use decorative tiles only behind the cooktop, and coordinating plain tiles along the counters for a focal point.
An epitome of the kind of craftsmanship and artistry Me and Ro prides themselves on, each pearl is hand beaded to create a lively focal point for the 18K gold ring.
Whereas a woman's piece of jewelry may use multiple gems to create a sparkling tapestry, men's jewelry is much more likely to use a single gem as an accent rather than as a focal point.
Incorporating unusual shaped beads into a piece of jewelry will provide an interesting focal point.
Gemstones can either be the focal point of the locket design or an accent to an etched motif.
Tight jeans can be the focal point of your outfit so play them up by making them the center of attraction.
Accessories create a fashion focal point and a way to add spice to your ensemble, but it's not always easy to find a plus size belt that both looks good and is comfortable.
While a V-neck adds a sultry vibe, make sure it's not too low-cut since your legs are your main focal point.
If your dress is short, your shoes will serve as a focal point.
When you wear a plus size denim jumpsuit, expect the bust and hips to be the focal points.
An empire waistline that is accented by a touch of embellishment also adds an intriguing focal point to the look.
These belts are more than just focal points for a western style outfit.
For others, travel and volunteering become the major focal points of retirement.
Astigmatism is another circumstance that can affect vision-in this case, there is distortion in the eye and this results in a second focal point.
This majestic sphere that welcomes guests as the focal point of Epcot weighs 16 million pounds.
Today many of these beautiful antique bowed glass china cabinets grace the homes of antique collectors creating a focal point in a room.
Various breathing techniques, cleansing breath, panting and blowing, are used for different phases together with the use of a focal point to enable the laboring woman to maintain control.
Some diseases that cause sustained muscle contraction limited to a particular muscle group (focal dystonia) are inherited, but others are caused by trauma.
Dystonia may be limited to one area (focal) or may affect the whole body (general).
Simple partial seizures do not spread from the focal area of the brain where they arise.
Complex partial seizures start as simple partial seizures but move beyond the focal area of the brain and cause loss of consciousness.
On brochures, business cards, and business signs, a picture can be too much of a focal point to the viewer.
In downtown New York City, the Rockettes, Radio City Music Hall, and all of Broadway are focal points for tourists and locals alike.
The menu adjusts seasonally, but often features a focal food that can be worked creatively into many dishes, such as the tomato.
As you might imagine, this style makes for an interesting focal piece.
Be prepared to attract attention and become the focal point of wherever you may be.
Often these suits feature only one shoulder, but this creates such an interesting focal point for the eyes that many won't even pay attention to any trouble spots of your body.
You're absolutely correct when you say the face is the focal point.
Opt for one focal piece - say, a cocktail ring - and keep everything else minimal to allow your dress its moment in the spotlight.
When tied around the neck, a light wispy scarf can become the focal point of your outfit, thereby distracting your audience.
A wide belt in a matching color will keep the look uniform, but a belt that wildly contrasts can be a great focal point.
Do make this patterned sweater the focal point of your outfit.
There are two versions of games you may want to consider when creating a board game with Egypt as the focal point.
The right candle centerpiece ideas can jazz up any type of candle into a lovely focal point for a table, mantle, or buffet.
Scattered candles can create a lovely centerpiece, particularly when smaller tea light candle lamps or votives are scattered around another focal point such as flowers, a bowl of fruit, or larger candles.
Alternatively, these pillar candles can be part of a special birthday gift, or the focal point of a candle-based gift basket.
This is a lovely form of decoration for holidays and celebrations or simply for creating an attractive focal point in a room.
Wreaths are a lovely way to display candles and will turn even the most basic of candles into an attractive focal point.
Community service has become a focal point of our nation, thanks to recent political and religious leader who emphasize the importance of bring good into the lives of others.
The hat, which belongs to a stingy amateur magician named Professor Hinkle, becomes the focal point of the story as Hinkle attempts to retrieve it.
For anyone who feels comfortable pulling up her shirt and letting her belly be the focal point of the Halloween costume, there are many great ideas that involve decorating the mid-section.
Whereas SingleParentMeet.com remains a powerful resource for busy single parents who might be otherwise isolated from the social scene, sites such as BlackSingles.com and JDate.com use ethnicity as a focal interest point.
There may be a central diamond flanked by the gemstones, or the stones themselves can be a focal point in the ring's design.
This significantly reduces the cost of the ring, and because the accent stones are not the focal point, their subtle lower quality is hardly noticeable.
Available in many colors and as versatile as natural diamonds, the synthetic jewel is rapidly gaining popularity both as an accent stone as well as the focal point of many engagement rings.
Multi-tone rings may or may not have diamonds or other gemstones as accents or focal points for the jewelry.
Some figural motifs are encrusted with stones in a pave setting, while others may use a single brilliant gem as a focal point or accent to a figure, such as the center of a cross or the eye of an animal.
To temper that cost, couples may consider choosing simple wedding bands rather than elaborate designs, or using semi-precious gems instead of diamonds as focal points.
Right hand styles do not typically have a central stone as the overall focal point of the piece.
Channel settings are preferred for accents because they are more subtle and let the heart become the undisputed focal point of the ring.
Unlike bridal sets, three stone rings, and other designs using several stones, scatter set diamond rings use stones that are literally "scattered" across the surface of a ring instead of positioned together as a single focal point.
Different sized stones scattered in the design, perhaps with one significantly larger gem serving as a focal point similar to traditional ring configurations.
A stunning solitaire pairs well with either a plain or a diamond-accented band without diluting the power of the one carat focal stone.
Gone are the days when the only focal point of an engagement ring is the central diamond.
Simple trinity, infinity, or lover's knots, often used as the focal point of the ring instead of a gemstone.
Many rings use multiple types of settings, often elevating the central focal stone above accent diamonds or gems, which may be cradled in a more recessed setting.
The lower ring band encircles the finger, while the upper portion of the band arches up to embrace the central mounting and focal diamond or gemstone, which is frequently in a classic tiffany setting.
Boxter settings to encompass center stones for greater focal points.
By choosing colored diamonds as a focal point, the company seeks to honor loved ones with these rare and beautiful gems.
Channel settings are the most secure for a ring's band and prong or bezel settings for any focal gems.
Diamond or gemstone - while diamonds are thought of as the traditional choice, when it comes to engagement rings, many different gemstones can be used as a focal point.
A pear shaped diamond or gemstone can make a beautiful focal point for an engagement ring and is one that will bring a lifetime of pleasure.
The wedding ring differs from the engagement ring in that the metal band is a more the focal point of the design than the gemstones.
If you're shopping on a budget, consider making the sapphire the focal point of your ring.
For example, if you have an interest in photography, you may find an assignment asking for an explanation of the differences between digital and film lens focal lengths.
If you're playing with pattern in your carry on, let this be the focal point of your look.
The focal point - once attention is diverted from the plentiful rhinestones and bold color, that is - is the cluster of charms that absolutely scream Vegas.
For all these reasons, reversing the trend of obesity in children is an important focal point for parents and doctors alike.
True, a bed is a large item that sits in the middle of a room and the bed's covering is a main focal point, but there are a few other things to also consider about a bedspread.
This sweet bed features lattice work and arches, making it a beautiful focal point of a girls' room.
Various classes have different focal points—parenting skills, communication skills, discipline options, etc., so reading the course descriptions once you know which skills you'd like to work on can narrow the field.
Keep your bag or clutch color simple if you are going to make your shoes the focal point of your ensemble.
Not just a child-like embellishment, ruffles now serve as either an outstanding focal point or an eye-catching accent to a simple outfit.
It's one of those colors that happens to wear well with many other colors, and in small doses can serve as an accent piece or focal point for a full ensemble.
Whether you prefer a basic pair in a neutral color like brown or black, or you're ready to paint the town in a bright red pair of high-heeled boots, you'll find that this footwear insists on being the focal point of your ensemble.
You won't want to pair these shoes with jeans or slacks unless they're rolled up since the cuff is the focal point of the sandal; make sure the cuff of the shoe is tight when you wear them this way.
The family of Erica Kane, which includes her children and many ex-husbands, is a focal point of All My Children.
Simple cherry blossom trees would make a great focal point for a tattoo between the shoulder blades.
For this reason the flag can be the focal point of your patriotic tattoo.
The star has been the focal point of many tattoos for all sorts of reasons.
The manor house of the Custis-Lee plantation at Arlington National Cemetery is the focal point of the cemetery.
These yoga mats feature a focal point icon that helps yogis focus during their practices.
The Aurorae Northern Lights Yoga Mat with Golden Sun Focal Icon is made of a safe and biodegradable material that is phthalates free.
Prior employment history should still be included, but it isn't the focal point.
Focusing on the details in this area of the painting creates an easily identifiable focal point.
Once you've created one or two centerpieces and understand more about scale and creating an interesting focal point, you can forget about the rules and let yourself go.
For example, you can try using slightly smaller beads as spacers between your larger focal point beads.
While the focal point of the family tree quilt is usually a large tree in the center, the blanket can have many different looks to it.
John Deere tractors, with their bright green color, make an attractive focal point for a cross stitch picture.
String your beads onto the wire, centering the focal point bead.
Nutrition is a focal point throughout the nine months a woman carries her child and continues to be important after labor and delivery.
When you wear such stockings, your legs are the focal point of your ensemble, so don't wear clothing that competes with them.
Lingerie is usually the focal piece of games at a lingerie party, and there may be games where the loser has to model a piece of lingerie.
Lingerie panties are typically silk or satin and may have lace, patterns, bright colors, or embroidered focal points.
Because the meal is a focal point of the event, a guest will feel left out if he cannot participate in several dishes because of his diet.
Some people would rather host a party without food as the focal point, and there are many options for Thanksgiving events that do not incorporate a meal.
Food is a focal point of any party, and party menu ideas for a graduation party should reflect the graduate's tastes as well as a bit of nostalgia.
Display a photo of the guest of honor on their boat as a focal point.
When planning a dinner party, many hosts want the main course and dessert to be the focal point of the food.
Other themes that have been a focal point were pregnancy, racial discrimination, and infidelity.
Alexis Neiers - Eighteen year old Alexis became the focal point of the show thanks to her legal troubles.
Unfortunately, confrontations became the focal point for Kim and Kyle's story arc on the show.
Not only is your face usually a focal point, the face is also one of the more sensitive areas of the skin.
Unless you change birdbath water regularly, these garden focal points can easily become a breeding ground for mosquito bites.
In some cases, tagging a lot of people and bringing them to a focal point on your page is a great way to get conversation rolling between all the people who were there plus a few more.
The eyepiece ab consists of two plano-convex lenses a, b, of nearly the same focal length, and with the two convex sides facing each other.
What is seen through the eye-piece in any case is the same as would be depicted upon a screen in the focal plane.
If the aperture be increased, not only is the total brightness over the focal plane increased with it, but there is also a concentration of the diffraction pattern.
At the focal point (E =o, n = o) all the secondary waves agree in phase, and the intensity is easily expressed, whatever be the form of the aperture.
So long as there is no sensible discrepancy of phase there can be no sensible diminution of brightness as compared with that to be found at the focal point itself.
Analytically expressed ff+ co x I 2 d dn=ff dxdy= A (9) We have seen that Io (the intensity at the focal point) was equal to A 2 /X 2 f2.
In these expressions we are to replace p by ks/f, or rather, since the diffraction pattern is symmetrical, by kr/f, where r is the distance of any point in the focal plane from the centre of the system.
Foucault, who employed a scale of equal bright and dark alternate parts; it was found to be proportional to the aperture and independent of the focal length.
Thus in estimating the intensity at a focal point, where, in the absence of aberration, all the secondary waves would have exactly the same phase, we see that an aberration nowhere exceeding 4X can have but little effect.
If we suppose the diameter of the lens to be given (2R), and its focal length f gradually to increase, the original differences of phase at the image of an infinitely distant luminous point diminish without limit.
Calculation shows that, if the aperture be s in., an achromatic lens has no sensible advantage if the focal length be greater than about II in.
If we suppose the focal length to be 66 ft., a single lens is practically perfect up to an aperture of 1 .
When parallel rays fall directly upon a spherical mirror the longitudinal aberration is only about one-eighth as great as for the most favourably shaped single lens of equal focal length and aperture.
A rotation of this amount should therefore be easily visible, but the limits of resolving power are being approached; and the conclusion is independent of the focal length of the mirror, and of the employment of a telescope, provided of course that the reflected image is seen in focus, and that the full width of the mirror is utilized.
The former measures the thickness of the primary focal line, and the latter measures its curvature.
Curvature of the primary focal line having a very injurious effect upon definition, it may be inferred from the excellent performance of these gratings that y is in fact small.
E is then the co-ordinate relatively to 0 of any focal point 0' for which the retardation is R; and the required result is obtained by simply integrating (5) with respect to from - cc to +oo.
It is evident that the effect at the focal point is the obliteration of the first and other spectra of odd order, so that as regards the spectrum of the first order we may consider that the two beams interfere.
Until recently these spherical lenses were numbered in terms of their focal length, the inch being used as the unit.
Owing principally to differences in the length of the inch in various countries this method had great inconveniences, and now the unit is the refractive power of a lens whose focal length is one metre.
A lens of twice its strength has a refractive power of 2 D, and a focal length of half a metre, and so on.
The width of each of the portions aghc and acfe cut away from the lens was made slightly greater than the focal length of lens X tangent of sun's greatest diameter.
Here, in order to fulfil the purposes of the previous models, the distance of the centres of the lenses from each other should only slightly exceed the tangent of sun's diameter X focal length of lenses.
It may be fixed at the end of a tube, of a suitable length to its focal distance, as an object-glass, - the other end of the tube having an eye-glass fitted as usual in astronomical telescopes.
It may be applied to the end of a tube much shorter than its focal distance, by having another convex glass within the tube, to shorten the focal distance of that which is cut in two.
The amount of separation is very small, and depends on the thickness of the glass, the index of refraction and the focal length of the telescope.
Properties of the limagon may be deduced from its mechanical construction; thus the length of a focal chord is constant and the normals at the extremities of a focal chord intersect on a fixed circle.