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:
Apr. 01, 2025

Filed:

Sep. 29, 2022
Applicant:

Hisense Laser Display Co., Ltd, Qingdao, CN;

Inventors:

Wei Li, Qingdao, CN;

Youliang Tian, Qingdao, CN;

Tiantian Tang, Qingdao, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 5/30 (2006.01); G02B 13/06 (2006.01); G02B 27/10 (2006.01); G02B 27/30 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2033 (2013.01); G02B 5/3025 (2013.01); G02B 13/06 (2013.01); G02B 27/102 (2013.01); G02B 27/30 (2013.01); G03B 21/2013 (2013.01); G03B 21/2066 (2013.01); G03B 21/208 (2013.01);
Abstract

A laser source assembly is provided. The laser source assembly includes a plurality of lasers, a light combining assembly and a fly-eye lens. The fly-eye lens is disposed on a light exit side of the light combining assembly, and is configured to homogenize laser beams. The fly-eye lens includes a plurality of first microlenses located on a light incident surface thereof and a plurality of second microlenses located on a light exit surface thereof. A sine value of a divergence angle of a laser beam in a fast axis direction is greater than a sine value of an aperture angle of a first microlens in a slow axis direction, and a sine value of a divergence angle of the laser beam in the slow axis direction is greater than a sine value of an aperture angle of the first microlens in the fast axis direction.


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