Professional Ophthalmic DispensingProfessional Press, 1970 - 549 páginas |
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Página 404
... standard , to preserve frontal stability . Now this rather well established fact is repeated here because of the growing , but mistaken belief that the lighter weight of organic lenses makes this basic rule obsolete . Actually the ...
... standard , to preserve frontal stability . Now this rather well established fact is repeated here because of the growing , but mistaken belief that the lighter weight of organic lenses makes this basic rule obsolete . Actually the ...
Página 469
... standards of fabrication , it can- not complain when a customer is tempted to look elsewhere for the support he wants . Lens Tolerances Any lab should require the highest possible standard of preci- sion in all eyewear fabricated in its ...
... standards of fabrication , it can- not complain when a customer is tempted to look elsewhere for the support he wants . Lens Tolerances Any lab should require the highest possible standard of preci- sion in all eyewear fabricated in its ...
Página 472
... standard specified frame Tolerance for power , size , etc. shall be as above except minimum thickness edge or center ... Standard 22.1 - 1959 . Unmounted lens shall with- stand an impact test of a steel ball dropped 50 " as fol- lows ...
... standard specified frame Tolerance for power , size , etc. shall be as above except minimum thickness edge or center ... Standard 22.1 - 1959 . Unmounted lens shall with- stand an impact test of a steel ball dropped 50 " as fol- lows ...
Índice
History | 3 |
Plastics and Plastic Frames | 15 |
Ophthalmic Fashion and Style | 41 |
Direitos de autor | |
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absorptive acetate angle Angstrom Units anisometropia anti-reflection coating aphakic appearance bevel bifocal cataract correct cosmetic course crown glass curve cylinder lens dark diopters dispenser's dispensing store edge effect endpieces entrance pupil eyewear face fashion feel fitting frame color front function heat important insertion kind lens design light look lower rim manufacturers matter measure metal millimeter multifocal myope normal nose nosepads ophthalmic dispensing optical center optical coatings optician pair of glasses patient penser perhaps plano plastic frames plastic lenses practitioner presbyopic prescriber prescription professional reading reason receptionist reflected refractive refractive index rocking pads salesman seems segment selling shade shape spectacle frame style sunglasses supply lab surface technique temples thickness thing tint tion ultraviolet UNIVERSITY OF CALIFORNIA usually vertex distance vertical vision visual wavelengths wear glasses word young zyl frame