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. 16, 2021
Filed:
Apr. 16, 2019
Applicant:
Olympus Corporation, Hachioji, JP;
Inventor:
Kenichiro Abe, Tokyo, JP;
Assignee:
OLYMPUS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/02 (2006.01); G02B 21/00 (2006.01); G02B 9/64 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 21/0072 (2013.01); G02B 9/64 (2013.01); G02B 21/0076 (2013.01); G02B 21/02 (2013.01); G02B 27/0025 (2013.01);
Abstract
An objective includes: a first lens group that includes a meniscus lens component that is the closest to an image among lens components of the first lens group, the meniscus lens component having a convex surface facing an object; and a second lens group that is closer to the image than the first lens group is, and the objective satisfies the following conditional expressions:0≤|Δ|/DOF≤1.5  (1)0≤|Δ|/DOF≤2  (2)