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:
Sep. 22, 2020
Filed:
Sep. 01, 2017
Applicant:
Materion Precision Optics (Shanghai) Limited, Shanghai, CN;
Assignee:
MATERION PRECISION OPTICS (SHANGHAI) LIMITED, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); F21V 7/00 (2006.01); F21V 13/08 (2006.01); F21V 9/30 (2018.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2066 (2013.01); F21V 7/0033 (2013.01); F21V 9/30 (2018.02); F21V 13/08 (2013.01); G02B 6/0096 (2013.01); G03B 21/204 (2013.01); G03B 21/208 (2013.01);
Abstract
Light tunnels, methods for forming a light tunnel, and apparatuses including light tunnels are disclosed herein. A light tunnel includes a plurality of reflectors cooperatively engaging with one another by a series of notches therein. The inner edges of the reflectors are chamfered to improve ease of assembly and decrease chipping of the edges during assembly. An adhesive can be applied at junctions between the reflectors on their outer surfaces. This construction eliminates or retards light leakage and adhesive leakage.