The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 12, 1991

Filed:

Oct. 30, 1989
Applicant:
Inventor:

Kouichi Akiyama, Tokyo, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351221 ; 351214 ;
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.


Find Patent Forward Citations

Akiyama, Kouichi. (1991). Ophthalmic disease detection apparatus (U.S. Patent No. 4991954). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4991954

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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