Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Folding
Patent
1974-04-30
1976-03-16
Sacher, Paul A.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Folding
350 19, 351 7, 354 79, A61B 314
Patent
active
039443426
ABSTRACT:
Photographic apparatus for a slit lamp includes a photographic camera adapted to be mounted on one ocular of a binocular microscope of the slit lamp and a light sensing device positioned adjacent an objective of the microscope for providing a signal corresponding to light at the objective to an automatic exposure control mechanism in the camera, the other ocular of the microscope being free to permit viewing of an object being photographed.
REFERENCES:
patent: 2290874 (1942-07-01), Graff
patent: 2933992 (1960-04-01), Bushnell et al.
patent: 3652153 (1972-03-01), Gambs
patent: 3830562 (1974-08-01), McGrann et al.
Codman & Shurtleff Inc.
Sacher Paul A.
Simkanich John J.
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