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.:
Date of Patent:
May. 25, 2021
Filed:
Aug. 07, 2019
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Ya-Lan Feng, New Taipei, TW;
Chun-Cheng Ko, New Taipei, TW;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A fixing ring of a certain design for a lens module substantially reduces stray light. The fixing ring defines a central axis, and comprises a base surface and a processing surface, formed from an edge of the base surface. A first angle θexists between a first side cut surface and a surface perpendicular to the central axis, a distance L1 and the first angle θsatisfy formulas 0.015 mm<L1<0.025 mm and 20°<θ<40°. The disclosure further provides a lens module and an electronic device comprising the fixing ring. An anti-dazzle film, matching with the fixing ring to completely absorb stray light, is included in the lens module.