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:
Oct. 31, 2017

Filed:

Aug. 17, 2016
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Junichi Okamoto, Fujimi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02F 1/225 (2006.01); G02F 1/01 (2006.01); G02B 27/01 (2006.01); G02B 26/10 (2006.01); G02F 1/21 (2006.01);
U.S. Cl.
CPC ...
G02F 1/225 (2013.01); G02B 26/101 (2013.01); G02B 27/0101 (2013.01); G02B 27/0172 (2013.01); G02F 1/011 (2013.01); G02B 2027/0178 (2013.01); G02F 2001/212 (2013.01);
Abstract

A light modulator includes a substrate providing an electro-optical effect and provided with first to third optical waveguides, a first modulation section that modulates a blue light flux passing through the first optical waveguide, a second modulation section that modulates a green light flux passing through the second optical waveguide, and a third modulation section that modulates a red light flux passing through the third optical waveguide, and L1<L2<L3 and S1>S2>S3 are satisfied, where L1 represents the length of the first modulation section, S1 represents the distance between a first reference line and a first exit section, L2 represents the length of the second modulation section, S2 represents the distance between a second reference line and a second exit section, L3 represents the length of the third modulation section, and S3 represents the distance between a third reference line and a third exit section.


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