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.

Date of Patent:
Feb. 04, 2020

Filed:

Mar. 08, 2017
Applicant:

Olympus Corporation, Hachioji-shi, Tokyo, JP;

Inventors:

Takahiro Amanai, Hachioji, JP;

Ayami Imamura, Hachioji, JP;

Shinichi Mihara, Tama, JP;

Assignee:

OLYMPUS CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); A61B 1/04 (2006.01); G02B 13/00 (2006.01); G02B 23/24 (2006.01); A61B 1/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/005 (2013.01); A61B 1/00096 (2013.01); A61B 1/041 (2013.01); G02B 13/001 (2013.01); G02B 23/2461 (2013.01); G02B 23/2484 (2013.01); G02B 27/0062 (2013.01);
Abstract

An image pickup apparatus includes an image forming optical system having an aperture stop, a first lens, and a second lens, and an imager having a light-receiving surface that is curved to be concave toward the image forming optical system, and a relative partial dispersion for a medium of the first lens differs from a relative partial dispersion for a medium of the second lens, and when a straight line indicated by θgF=α×υd+β(where α=−0.00163) has been set, θgFand υdfor the medium of the first lens are included in both of an area determined by the following conditional expression (1) and an area determined by the following conditional expression (2), and the following conditional expression (3) is satisfied:0.68<β  (1),υ<50  (2), and0<||≤1.5  (3).


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