Combinable apparatus for examination of the eye

Details Combinable apparatus for examination of the eye Combinable apparatus for examination of the eye

1979-07-09

1982-02-16

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 14, 351 6, A61B 310

Patent

active

043156720

ABSTRACT:
The invention contemplates eye-examination apparatus wherein modular-component construction enables a base with binocular-microscope viewing structure to selectively serve multiple-instrument functions, one of which is specifically an ophthalmometer. In the form described, the ophthalmometer component is a module which, when selected for use with the base module, provides a direct internally developed read-out of reflected-mire displacement in one of the two optical systems of binocular viewing and which provides via the other binocular optical system a concurrent display of the two reflected-mire images in the course of displacement adjustment; in the other selected employment of the base module, the instrument is a slit-lamp microscope. The ophthalmometer axis coincides with the central axis of symmetry of the slit-lamp microscope, so that no adjustment of the base module is needed in relation to a particular eye to make successive use of the same viewing structure in a slit-lamp mode and in an ophthalmometer mode.

REFERENCES:
patent: 3290927 (1966-12-01), Gambs

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