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. 16, 1990
Filed:
Sep. 08, 1988
Applicant:
Inventor:
Chien-Ping Kung, Hsin-Chu, TW;
Assignee:
Industrial Technology Research Institute, Taiwan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350-68 ; 350479 ;
Abstract
A constant-speed scanning lens system composed of two lens components. One lens component is a biconcave negative lens having the function of diverging parallel rays. The other lens component is a biconvex positive lens having the function of focusing diverging rays. The constant-speed scanning lens system is of a compact size and has a wider scanning angle than previously attainable.
Kung, Chien-Ping. (1990). Constant-speed scanning lens system (U.S. Patent No. 4962984). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4962984
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile