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:
Apr. 11, 1978
Filed:
Apr. 13, 1976
Applicant:
Inventor:
Toshimichi Koizumi, Sagamihara, JA;
Assignee:
Olympus Optical Co., Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350220 ;
Abstract
A copying objective lens system of four-component six-element lens configuration comprising a front and rear lens groups arranged symmetrically in respect to the stop positioned at the center, each of said front and rear lens groups comprising a negative cemented doublet lens and positive lens, said copying objective lens system being arranged so that uniform brightness of image can be obtained over the whole field.
Koizumi, Toshimichi. (1978). Copying objective lens system (U.S. Patent No. 4083628). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4083628
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile