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:
Dec. 15, 1987
Filed:
Dec. 27, 1984
Applicant:
Inventors:
Takeshi Baba, Yokohama, JP;
Hiroyuki Imataki, Kawasaki, JP;
Masayuki Usui, Yokohama, JP;
Takashi Serizawa, Yokohama, JP;
Hiroyasu Nose, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350413 ; 350419 ; 350423 ;
Abstract
A variable focal length lens in which a lens comprising a transparent elastic member having a non-uniform distribution of refractive index is adapted to be deformed by an extraneous force.
Baba, Takeshi. (1987). Variable focal length lens (U.S. Patent No. 4712882). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4712882
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile