# Magnification Sentence Examples

- The field of view is usually about 40° at a
**magnification**of 1 5. - There are three eyepieces which are mounted on a revolving sleeve in such a way that any one of them can be quickly brought into use, to give the
**magnification**suitable to the height of the mast. - The
**magnification**is too small to show the zebra striping of the pearlite. - Lockhart Clarke (1817-1880), one of the earliest investigators of nervous pathology, the improvement of the compound microscope had not attained the achromatism, the penetration and the
**magnification**which have since enabled J. - It is an erecting telescope with a field of view of 10° and a
**magnification**of 3 diameters, and admits plenty of light. - He then describes the effects of
**magnification**from a combination of lenses or mirrors, adding: - "But of these conclusions I minde not here to intreate, having at large in a volume 2 by itselfe opened the miraculous effects of perspective glasses." - The term Anatomy, originally employed in biological science to denote a description of the facts of structure revealed on cutting up an organism, whether with or without the aid of lenses for the purposes of
**magnification**, is restricted in the present article, in accordance with a common modern use, to those facts of internal structure not concerned with the constitution of the individual cell, the structural unit of which the plant is composed. - To enable a distant ship or other object to be examined more closely it is possible in some periscopes to change the
**magnification**from a normal power of 1.5 to a power of 6. - A microscope objective being made in essentially the same way as a simple microscope, and the front focus of the compound system being situated before the front focus of the objective, the
**magnification**due to the simple system makes the free object distance greater than that obtained with a simple microscope of equal**magnification**. - In this case the optical tube length may be altered within fixed limits without spoiling the image; at the same time the objective
**magnification**M is also altered. - By making very thin sections and employing high
**magnification**(1000-1200 diameters), Renault has been enabled to detect numerous forms of bacilli in the woody parts preserved in coal, one of which, Micrococcus carbo, bears a strong resemblance to the living Cladothrix found in trees buried in peat bogs. - The steady mass, however, is much larger, being too kilos (or 220 Ib); the
**magnification**is from 80 to loo; and the registration is effected on a roll of smoked paper. - 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. - With the
**magnification**N2, and about 0.02 in. - With the
**magnification**N4. - There still remains a slight chromatic difference in
**magnification**, for although the**magnification**consequent upon the fulfilment of the sine-condition is the same for all zones for one colour, it is impossible to avoid a change of the**magnification**with the colour. - Since, however, the difference of chromatic
**magnification**cannot be overcome in powerful objectives, this error is still further increased by the eyepiece. - By the
**magnification**of the objective is meant the ratio of the distance of distinct vision to the focal length of the objective. - If the objects have a low reflecting power, or if a slightly higher
**magnification**is needed, the lighting can be improved by optical system. - The motion of the rod consequent to a motion of the case is modified by the projecting axle of the stationary mass, and after much
**magnification**is recorded on a sheet of smoked paper. - This instrument, which has a
**magnification**of 2200, detects the slightest tremors, and is consequently most useful in recording earthquakes of distant origin; its high sensitiveness and complications, however, militate against its common use. **Magnification**and registration of the motion is effected in the following way.- In this case the image is formed without secondary
**magnification**and the focal length is 25 ft. - The problem of finding a system which reproduces a given object upon a given plane with given
**magnification**(in so far as aberrations must be taken into account) could be dealt with by means of the approximation theory; in most cases, however, the analytical difficulties are too great. - By altering the distance of the collective and dispersive members the
**magnification**can be widely varied. - Although we now know how the errors of lenses may be corrected, and how the simple microscope may be improved, this instrument remains with relatively feeble
**magnification**, and to obtain strongerthe compound form is necessary.**magnifications** - But even with such moderate
**magnification**as these instruments permitted many faults were apparent. - 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." - Nothing is altered as to objective
**magnification**, however, as the first surface is plane, and the employment of the immersion means that the value of f l ' 'is unaltered. - To obtain the
**magnification**of the complete microscope we must combine the objective**magnification**M with the action of the eyepiece. - If we replace y' in equation (4) by the value given by (3), we obtain tan w"/ y i/f2"=V, (5) the
**magnification**of the complete microscope. - The
**magnification**therefore equals the power of the joint system. - The
**magnification**is also expressed as the ratio of the apparent size of the object observed through the microscope to the apparent size of the object seen with the naked eye. - (6) The
**magnification**number increases then with the optical tube-length and with the diminution of the focal lengths of objective and eyepiece. - As with the simple microscope, different observers see differently in the same compound microscope; and hence the
**magnification**varies with the power of accommodation. - When the pupil regulates the aperture of the rays producing the image the aberrations of the ordinary lenses increase considerably with the
**magnification**, or, what amounts to the same thing, with the increase in the curvature of the surfaces. - If this value of y be inserted in equation (5), we obtain the
**magnification**number of the compound microscope N =tan w"/ tan w =Ol/f i 'f 2 ' =Vl. - Function of the aperture and the
**magnification**, it can be increased by diminishing the entrance pupil, the**magnification**remaining unchanged. - The Fraunhofer formula permits the determination of the most useful
**magnification**of such an objective in order to utilize its full resolving power. - By substituting y, the size of the object, for d, the smallest value which a single object can have in order to be analysed, and the angle w' by 2', we obtain the magnifying power and the
**magnification**number: V2 = tan w'Id= 2A tan 2'/X; N2 = 2Al tan 2'/A; where 1 equals the sight range of io in. - Even if the details can be recognized with an apparent
**magnification**of 2', the observation may still be inconvenient. - This may be improved when the
**magnification**is so increased that the angle under which the object, when still just recognizable, is raised to 4'. - The
**magnification**and magnifying number which are most necessary for a microscope with an objective of a given aperture can then be calculated from the formulae: V4 = 2A tan 4'/X; N4 = 2Al tan 4'/A. - Soc., 1882, p. 463) we have the following table for the limits of the
**magnification**numbers, for various microscope objectives, µ = o ooi mm.: A=nsinu. - If the
**magnification**is below the given numbers, the details can either not be seen at all, or only very indistinctly; if, on the contrary, the given**magnification**is increased, there will still be no more details visible. - If the
**magnification**be greater than the resolving power demands, the observation is not only needlessly made more difficult, but the entrance pupil is diminished, and with it a very considerable decrease of clearness, for with an objective of a certain aperture the size of the exit pupil depends upon the**magnification**. - The sine-condition can therefore also be understood as follows: that all objective zones must have the same
**magnification**for the plane-element. - Even in apochromats it is not possible to entirely remove the chromatic difference of
**magnification**, i.e. - These eyepieces are intentionally provided with a different chromatic
**magnification**, which however is in opposition to that originating in the objective. - By multiplying the
**magnification**of the objective by the number .t . - ,; To examine small opaque objects with a high
**magnification**the Lieberkiihn mirror, so named after its inventor, was formerly much used. - To keep up this degree of exactitude the
**magnification**of the objective must be carefully ascertained, e.g. - 8, we have O'Q'/OQ = a' tan w' la tan w = 1/N, where N is the " scale " or
**magnification**of the image. - As a rule large
**magnification**is not demanded from the former, but a larger field of view, whilst the simple microscope should ensure powerful**magnification**even when the field is small. - A X Jo
**magnification**is, however, by no means guaranteed to a myopic eye of - io D by a lens of i in. - The
**magnification**, resulting from the simple microscope of i in. - Focal length assures to the normal-sighted person a X 10
**magnification**, it affords to the short-sighted individual only X 4. - The Wilson has a greater distance between the lenses, and also a reduction of the chromatic difference of
**magnification**, but compared with the Fraunhofer it is at a disadvantage with regard to the size of the free working distance, i.e. - The convenient and rapid change in the
**magnification**obtained by changing the eyepiece or the objective is also a special advantage of the compound form. - ID on the eyepiece the total
**magnification**of the microscope is obtained. - While, however, the
**magnification**of the individual zones is the same, it is not the same for red as for Blue; And There Is A Chromatic Difference Of**Magnification**. - With increasing
**magnification**the depth of definition diminishes, because the circles of confusion are greater in consequence of the shorter focall length. - As powerful achromatic objectives show differences of chromatic
**magnification**in the same way as apochromats, compensation eyepieces can be used in combination with these objectives. - The more distant this is from the pendulum the greater is the
**magnification**of the angular movements of the mirror.