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.:

US 10422930 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 24, 2019

Filed:

Sep. 01, 2014
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventor:

Yusaku Asano, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/00 (2006.01); H01L 31/0232 (2014.01);
U.S. Cl.
CPC ...
G02B 3/0087 (2013.01); H01L 31/02327 (2013.01);
Abstract

An optical element includes a first surface and a second surface opposite to the first surface, and includes a first region. A refractive index of the first region is asymmetric with respect to a first axis. The first axis passes through a first position and is parallel to a first thickness direction. The first refractive index is highest or lowest at the first position in the first region. The first thickness direction is from the first surface toward the second surface in the first region.


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Asano, Yusaku. (2019). Optical element and photo detection device (U.S. Patent No. 10422930). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10422930

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