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:
May. 12, 2020
Filed:
Jan. 04, 2016
Ricoh Company, Ltd., Tokyo, JP;
Kensuke Masuda, Kanagawa, JP;
Noriyuki Terao, Miyagi, JP;
Yoshiaki Irino, Kanagawa, JP;
Tomonori Tanaka, Kanagawa, JP;
Nozomi Imae, Kanagawa, JP;
Toru Harada, Kanagawa, JP;
Hirokazu Takenaka, Kanagawa, JP;
Hideaki Yamamoto, Kanagawa, JP;
Satoshi Sawaguchi, Kanagawa, JP;
Hiroyuki Satoh, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An optical system includes a central portion having a magnification per unit angle of view which increases from a center to an outside at an increase rate and a circumferential portion being outside the central portion and having a magnification per unit of view which increases from the central portion to an outside at an increase rate smaller than the increase rate of the central portion.