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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 10310321 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Jun. 21, 2012

Optical element, manufacturing method of optical element, and optical device

Applicants:

Koji Hirata, Ibaraki, JP;

Hiroyuki Minemura, Tokyo, JP;

Yumiko Anzai, Tokyo, JP;

Tetsuya Nishida, Tokyo, JP;

Jiro Yamamoto, Tokyo, JP;

Naoyuki Kofuji, Tokyo, JP;

Hidehiro Ikeda, Ibaraki, JP;

Nobuyuki Kimura, Ibaraki, JP;

Inventors:

Koji Hirata, Ibaraki, JP;

Hiroyuki Minemura, Tokyo, JP;

Yumiko Anzai, Tokyo, JP;

Tetsuya Nishida, Tokyo, JP;

Jiro Yamamoto, Tokyo, JP;

Naoyuki Kofuji, Tokyo, JP;

Hidehiro Ikeda, Ibaraki, JP;

Nobuyuki Kimura, Ibaraki, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Paisley L Arendt

Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G03B 21/20 (2006.01); G03B 33/12 (2006.01); H04N 9/31 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133528 (2013.01); G02B 5/30 (2013.01); G02B 5/3058 (2013.01); G03B 21/2073 (2013.01); G03B 33/12 (2013.01); H04N 9/3105 (2013.01); H04N 9/3167 (2013.01); G02F 2001/133388 (2013.01); G02F 2001/133548 (2013.01);
Abstract

In order to improve a characteristic of an optical element, an optical element (polarizing filter) including a substrateS having a wire-grid regionA and a peripheral regionA positioned on an outer periphery thereof is made to have the following configuration. A wire-grid in which a plurality of line-shaped wires Pmade of Al and extending in a y direction are arranged at spaces S in an x direction is provided in the wire-grid regionA of the substrateS, and a pattern (repetitive pattern) in which a plurality of protruding portions Pmade of Al are arranged is provided in the peripheral regionA. This pattern is, for example, a checkerboard pattern. According to the above-mentioned configuration, the plurality of wires Pcan be arranged so that their respective ends are spaced apart from an end of the substrateS, so that the wires Pcan be prevented from being deformed and nicked. Also, by the plurality of protruding portions Pin the peripheral regionA, it is possible to prevent water from entering the wire-grid regionA.

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