Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – For interpupillary distance measuring or lens positioning
Patent
1980-11-28
1982-12-21
Corbin, John K.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
For interpupillary distance measuring or lens positioning
351158, 351120, G02C 514, A61B 310, G03B 158
Patent
active
043646450
ABSTRACT:
There is disclosed a trial frame employed for determining interpupillary distances and the angle of inclination for persons having low or reduced vision. The frame has inserted therein test carrier lenses for each eye. The carrier lenses possess an arcuate aperture for pivotally adjusting a telescopic lens assembly which is moved within the aperture to determine the correct interpupillary distance for each eye. The temple of the frame is secured to the front of the frame by a pivot member which enables the practitioner to pivot or incline each temple with respect to the front to obtain an optimum angle of inclination to thereby enable the practitioner to prepare a final spectacle assembly employing a prescribed carrier lens together with optimum telescope assemblies strictly according to the requirements of the individual patient.
REFERENCES:
patent: 2273456 (1966-09-01), Feinbloom
Bovernick Rodney B.
Corbin John K.
Plevy Arthur L.
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