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:
May. 19, 2020

Filed:

Dec. 08, 2014
Applicant:

Nikon Corporation, Tokyo, JP;

Inventors:

Susumu Mori, Tokyo, JP;

Tomoya Saito, Fuchu, JP;

Assignee:

NIKON CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/00 (2006.01); G01N 21/64 (2006.01); G02B 21/12 (2006.01); G02B 5/26 (2006.01); G02B 27/14 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
G02B 21/0032 (2013.01); G01N 21/6458 (2013.01); G01N 21/6486 (2013.01); G02B 5/26 (2013.01); G02B 21/0064 (2013.01); G02B 21/0076 (2013.01); G02B 21/12 (2013.01); G02B 27/141 (2013.01); G01N 2021/6471 (2013.01); G02B 5/22 (2013.01);
Abstract

An optical apparatus includes a first optical element and a second optical element capable of separating incident light according to a wavelength of the incident light. The first optical element includes a first separation section having first optical characteristics for reflecting light in a first wavelength band, transmitting light in a second wavelength band, and partially transmitting and partially reflecting light in a third wavelength band. The second optical element includes a second separation section having second optical characteristics for separating incident light that is incident in two wavelength bands including the first wavelength band or the second wavelength band and the third wavelength band into the light in the first wavelength band or the light in the second wavelength band and the light in the third wavelength band according to the wavelength.


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