Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1988-06-14
1991-01-29
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, 351214, A61B 310
Patent
active
049881841
ABSTRACT:
An apparatus for examining for the presence of absence of opthalmic diseases in a patient's eye comprises a laser beam projector for projecting a laser beam at a selected spot in the patient's eye, an optical element disposed to receive light scattered by protein in the patient's eye, and a photoelectrical converter for photoelectrically converting the scattered light into an electrical signal. The laser beam projector and the optical element are arranged so that their optical axes cross substantially at right angles with each other. The optical element divides the scattered light into two parts, one part being directed to the photoelectrical converter and the other part being directed to observation equipment to enable an observer to view the selected spot in the patient's eye. The optical element is arranged so that the optical axis of the scattered light directed towards the photoelectrical converter lies in a common plane that includes both the optical axis of the laser beam projector and the optical axis of the scattered light received by the optical element.
Adams Bruce L.
Bovernick Rodney B.
Kowa Company Ltd.
Wilks Van C.
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