Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1987-11-30
1989-09-26
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351244, A61B 302
Patent
active
048695890
ABSTRACT:
A visual deficiency screening system (8) includes a display (14) and a means (10, 18) for generating a series of randomly differing images (12). A hood (24) and eyepiece (26) are provided for properly positioning a test subject relative to the display (14).
REFERENCES:
patent: 3905688 (1975-09-01), Decker et al.
patent: 3969020 (1976-07-01), Lynn et al.
patent: 4239351 (1980-12-01), Williams et al.
patent: 4285580 (1981-08-01), Murr
patent: 4634243 (1987-01-01), Massof et al.
Albetski Eric J.
Blair David J.
Izzarelli Kathy L.
Parent Cyr J.
Bovernick Rodney B.
Dzierzynski P. M.
Snyder Troxell K.
United Technologies Corporation
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