Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1989-10-30
1991-02-12
Dzierzynski, Paul M.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351214, A61B 310
Patent
active
049919547
ABSTRACT:
An apparatus for detecting ophthalmic diseases such as an inflammation in a patient's eye which includes means for focusing a linearly polarized laser beam at a selected spot in the eye. The light scattered from the eye is photoelectrically detected and converted into an electrical signal which is subsequently used to determine the protein concentration essential to ophthalmic disease detection in the patient's eye. The laser beam of linear polarization projected on the spot to be measured only contains substantially the same linear polarization component as that contained in the light scattered from the patient's eye. In the apparatus, light adjusting and/or regulating means are provided to adjust the quantity of light impinging on a detector or the intensity of the laser beam produced from the laser source.
REFERENCES:
patent: 4208107 (1980-06-01), Oharek
patent: 4711542 (1987-12-01), Ichihashi et al.
patent: 4838683 (1989-06-01), Ichihashi et al.
Adams Bruce L.
Dzierzynski Paul M.
Kowa Company Ltd.
Wilks Van C.
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