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:
Mar. 29, 2022
Filed:
Apr. 19, 2019
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventor:
Takuya Nagano, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/10 (2021.01); G02B 9/12 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 7/10 (2013.01); G02B 9/12 (2013.01); G02B 27/0025 (2013.01);
Abstract
An imaging lens system includes a first lens; a stop; a second lens group; and a third lens group, disposed in that order from an object side to an image side. A combination of the first lens group and the second lens group moves together as a single unit to the object side in focusing from infinity to a close distance to increase a distance between the second lens group and the third lens group. Conditional expression (1) below being satisfied:0.40<31−32/3<0.75  (1)
Nagano, Takuya. (2022). Imaging lens system and imaging device (U.S. Patent No. 11287606). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11287606
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile