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:
Aug. 22, 2017
Filed:
Jun. 29, 2015
Ricoh Company, Ltd., Tokyo, JP;
Kensuke Masuda, Kawasaki, JP;
Noriyuki Terao, Sendai, JP;
Yoshiaki Irino, Kawasaki, JP;
Tomonori Tanaka, Yokohama, JP;
Nozomi Imae, Yokohama, JP;
Toru Harada, Yokohama, JP;
Hirokazu Takenaka, Kawasaki, JP;
Hideaki Yamamoto, Yokohama, JP;
Satoshi Sawaguchi, Yokohama, JP;
Daisuke Bessho, Kawasaki, JP;
Hiroyuki Satoh, Kawasaki, JP;
Makoto Shohara, Hachioji, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4π radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.