Eye inspection apparatus with variable field angle

Details Eye inspection apparatus with variable field angle Eye inspection apparatus with variable field angle

1984-06-27

1985-03-05

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

354 62, A61B 314, G03B 2900

Patent

active

045027668

ABSTRACT:
An eye inspection apparatus in which an objective, an apertured mirror, a diaphragm, a fixed lens group, a compensation lens group, a variation lens group, a convergent lens group, a quick-return mirror and a photographic film are arranged in order stated with the first mentioned element nearest the eye to be inspected. In addition an observation light source, a photographic flash tube, a condenser lens, and a relay lens are directed to the aperture mirror, and further a view finder is arranged to be directed to the quick-return mirror.

REFERENCES:
patent: 3535027 (1970-10-01), Littmann et al.
patent: 3914032 (1975-10-01), Takano et al.
patent: 4062623 (1977-12-01), Suzuki et al.
patent: 4208107 (1980-06-01), Oharek

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