Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1994-10-26
1996-12-31
Mai, Huy
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, 359689, 359708, A61B 300, A61B 310, G02B 1514
Patent
active
055898963
ABSTRACT:
An indirect ophthalmoscopy lens (10) comprises two or more elements (16, 30). The elements (16, 30) are movable by the physician relative to each other to vary the magnification provided in an aerial image (I) of the fundus.
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Crossman Janet L.
Johnson Robert D.
Mainster Martin A.
Mai Huy
Ocular Instruments, Inc.
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