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.
Patent No.:
Date of Patent:
Oct. 06, 1998
Filed:
Nov. 04, 1996
Satoshi Noda, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A gradient index optical element comprises a component capable of absorbing light unnecessary for image formation and observation. The optical element is made according to a solgel process wherein a gradient index glass or plastic body is initially made and then incorporated with a light-absorbing component such as CuO and FeO that absorbs unnecessary light. The optical element has a filter function for eliminating light unnecessary for image formation and observation. A lens system having a reduced number of optical elements is realized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile