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opticians

opticians Sentence Examples

  • The refractive indices of all glasses at present available lie between 1.46 and 1 90, whereas transparent minerals are known having refractive indices lying considerably outside these limits; at least one of these, fluorite (calcium fluoride), is actually used by opticians in the construction of certain lenses, so that probably progress is to be looked for in a considerable widening of the limits of available optical materials; possibly such progress may lie in the direction of the artificial production of large mineral crystals.

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  • Early opticians and microscopists gave their chief attention to the improvement of the simple microscope, the principle of which we now explain.

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  • Until Newton's discovery of the different refrangibility of light of different colours, it was generally supposed that object-glasses of telescopes were subject to no other errors than those which arose from the spherical figure of their surfaces, and the efforts of opticians were chiefly directed to the construction of lenses of other forms of curvature.

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  • The development of this instrument was studied by opticians for the remainder of the first half of the 19th century; the last improvement apparently was made by P. G.

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  • The development of this instrument was studied by opticians for the remainder of the first half of the 19th century; the last improvement apparently was made by P. G.

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  • Compound Microscope The view held by early opticians, that a compound microscope could never produce such good images as an instrument of the simple type, has proved erroneous; and the principal attention of modern opticians has been directed to the compound instrument.

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  • Opticians should supply sufficient information of the dispersive properties of their materials to allow dµ/dX to be calculated easily for different parts of the spectrum.

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  • Bradley and Molyneux, having been instructed by Hadley in his methods of polishing specula, succeeded in producing some telescopes of considerable power, one of which had a focal length of 8 ft.; and, Molyneux having communicated these methods to Scarlet and Hearn, two London opticians, the manufacture of telescopes as a matter of business was commenced by them (Smith's Opticks, bk.

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  • Opticians should supply sufficient information of the dispersive properties of their materials to allow dµ/dX to be calculated easily for different parts of the spectrum.

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  • Dispensing opticians are also able to fit contact lenses after undergoing further specialist training.

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  • ophthalmic opticians on production of a GP referral note.

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  • I have fully qualified opticians working in labs, making the glasses. âI was on GMTV today, arguing with an exec from Specsavers.

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  • Eye tests were provided by ophthalmic opticians on production of a GP referral note.

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  • The results will show the distance to the nearest opticians.

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  • opticians appointment.

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  • Opticians To find your nearest NHS opticians To find your nearest NHS optician visit the NHS opticians website.

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  • Additional services such as speech therapy or physiotherapy can always be arranged, as can opticians and dentists appointments.

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  • The refractive indices of all glasses at present available lie between 1.46 and 1 90, whereas transparent minerals are known having refractive indices lying considerably outside these limits; at least one of these, fluorite (calcium fluoride), is actually used by opticians in the construction of certain lenses, so that probably progress is to be looked for in a considerable widening of the limits of available optical materials; possibly such progress may lie in the direction of the artificial production of large mineral crystals.

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  • Its lumber and flour mills are its largest industries, but the following are found: aerated waters and breweries, tent makers, baking-powder manufactories, box manufacturers, brick makers, broom, brushes and carriage makers, cement blocks, manufacturing chemists, chocolate and cigar manufacturers, confectionery, copper plate, cornice makers, engine builders, gas fitters, ink manufacturers, jewelry makers, lime makers, milliners, opticians, paint makers, paper-box makers, photographers, pickle makers, planing mills, pork packers, publishers, pump makers, rubber-stamp makers, sash, door and blind factories, upholsterers, ventilating manufactory, vinegar factories, foundries, wire and fence manufactories.

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  • Until Newton's discovery of the different refrangibility of light of different colours, it was generally supposed that object-glasses of telescopes were subject to no other errors than those which arose from the spherical figure of their surfaces, and the efforts of opticians were chiefly directed to the construction of lenses of other forms of curvature.

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  • Bradley and Molyneux, having been instructed by Hadley in his methods of polishing specula, succeeded in producing some telescopes of considerable power, one of which had a focal length of 8 ft.; and, Molyneux having communicated these methods to Scarlet and Hearn, two London opticians, the manufacture of telescopes as a matter of business was commenced by them (Smith's Opticks, bk.

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  • Early opticians and microscopists gave their chief attention to the improvement of the simple microscope, the principle of which we now explain.

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  • Compound Microscope The view held by early opticians, that a compound microscope could never produce such good images as an instrument of the simple type, has proved erroneous; and the principal attention of modern opticians has been directed to the compound instrument.

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  • Most opticians recommend an anti-reflective coating on the inside of the polarized lens.

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  • Opticians: Choose an optician if you already have the prescription for your glasses and want to buy frames and order your glasses.

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  • In some cases, eye care facilities staff all of these professionals in one building, and it is not uncommon for optometrists to serve as opticians.

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  • Some doctors like to hand them directly to their in-office opticians so that they may help you from there.

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  • You may also find wholesale optical laboratories that carry lenses and frames for a lower price than from private opticians in your location.

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  • Their trained opticians help you pick out the size and styles that are right for you.

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  • In general, opticians seem to be recommending no-line bifocals to those who are just now branching out into bifocal territory, whether they need them in the form of clear lenses or sunglasses.

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  • Though Costco opticians are knowledgeable and will be able to help you find the frames that fit your face the best, you may wish to go in with a general idea of what you'd like to try first.

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  • By 1989, the frames were being sold by several other opticians in Denmark and began to gain popularity in other countries as well.

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  • Some opticians would offer patients specially prescribed reading glasses, but usually the patient would have to remove those glasses or purchase non-reading eyeglasses for distance viewing.

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  • Opticians Association of America. 44 Carlisle Drive, Herndon, VA 20170.

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