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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 11460704 B1

PDFFull Text
Date of Patent:
Oct. 04, 2022

Filed:

May. 20, 2021

Augmented reality apparatus and optical system therefor

Applicant:

Matrixed Reality Technology Co., Ltd., Wuxi, CN;

Inventors:

Bing Xiao, Beijing, CN;

Xiaobin Liang, Beijing, CN;

Chi Xu, Beijing, CN;

Assignee:

Matrixed Reality Technology Co., Ltd., Wuxi, CN;

Attorney:

Reinhart Boerner Van Deuren P.C.

Primary Examiner:

William C Dowling

Int. Cl.
CPC ...
G03B 21/14 (2006.01); G02F 1/1335 (2006.01); H04N 9/77 (2006.01); G02B 27/01 (2006.01); G02B 27/12 (2006.01); G02B 27/28 (2006.01); G02B 1/11 (2015.01); G02B 27/09 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/017 (2013.01); G02B 1/11 (2013.01); G02B 27/0101 (2013.01); G02B 27/0955 (2013.01); G02B 27/123 (2013.01); G02B 27/142 (2013.01); G02B 27/145 (2013.01); G02B 27/281 (2013.01); G02B 27/283 (2013.01); G02B 27/286 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0185 (2013.01);
Abstract

Provided are an optical system for an augmented reality apparatus and an augmented reality apparatus. The optical system includes an image source; a polarizing beam splitter including a polarizing beam splitting film and a polarizing film; a polarizer disposed between the image source and the beam splitting side of the polarizing beam splitter; a wave plate adjacent to the beam splitting side; a semi-reflector located downstream of the wave plate in an optical path of the reflected light; and an additional wave plate and an additional polarizer which are sequentially located distal to the semi-reflector. The image source has a planar image source for emitting light, wherein a plane where the beam splitting side of the beam splitter component locates is at a first angle (β) relative to a normal of the image source, the first angle has a value between 11° and 79°.

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