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:
Feb. 25, 2025

Filed:

May. 08, 2023
Applicant:

Largan Precision Co., Ltd., Taichung, TW;

Inventors:

Heng-Yi Su, Taichung, TW;

Ming-Ta Chou, Taichung, TW;

Wen-Yu Tsai, Taichung, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 1/00 (2006.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
H04N 23/55 (2023.01); G02B 1/002 (2013.01); G02B 13/0065 (2013.01); G02B 2207/101 (2013.01);
Abstract

An imaging lens assembly includes optical elements and a light path folding mechanism. The light path folding mechanism is disposed on the optical axis to fold an optical axis at least once, and includes a light folding element, a light blocking structure and a nanostructure layer. The light folding element includes a reflecting surface, an incident surface and an exit surface. The reflecting surface is configured to fold an incident light path towards an exit light path. The light blocking structure is disposed on at least one of the incident surface and the exit surface, and includes a main light blocking portion located on a peripheral portion closest to the optical axis on a cross section passing through the optical axis. The nanostructure layer is continuously distributed over at least one of the incident surface and the exit surface and the main light blocking portion.


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