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:

Mar. 15, 2022
Applicant:

Shenzhen Qize Technology Partnership (Limited Partnership), Shenzhen, CN;

Inventors:

Houqiang Jiang, Shenzhen, CN;

Tapani Kalervo Levola, Shenzhen, CN;

Yisheng Zhu, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 6/005 (2013.01); G02B 27/0081 (2013.01); G02B 2027/0123 (2013.01);
Abstract

A display apparatus () for displaying a virtual image (VIMG) includes an expander device (EPE) to form light beams (B, B) of output light (OUT) by expanding light beams (B, B) of input light (IN), the expander device (EPE) including a waveguide plate (SUB), an in-coupling element (DOE) to form guided light (B) by coupling input light (IN) into the waveguide plate (SUB), and an out-coupling element (DOE) to form output light (OUT) by coupling the guided light (B) out of the waveguide plate (SUB), wherein the display apparatus () includes a base (BASE) and an actuating mechanism (MOTOR) to cause rotary and/or oscillatory motion of the waveguide plate (SUB) with respect to the base (BASE).


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