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. 16, 2025
Filed:
Mar. 15, 2022
Applicant:
Ledlenser Gmbh & Co. KG, Solingen, DE;
Inventor:
Oliver Dross, Hilden, DE;
Assignee:
LEDLENSER GMBH & CO. KG, Solingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2018.01); F21L 4/00 (2006.01); F21S 41/32 (2018.01); F21S 43/31 (2018.01); F21S 43/40 (2018.01); F21V 7/00 (2006.01); G02B 3/00 (2006.01); G02B 27/30 (2006.01);
U.S. Cl.
CPC ...
F21V 5/004 (2013.01); F21L 4/005 (2013.01); F21V 7/0091 (2013.01); G02B 3/0037 (2013.01); G02B 27/30 (2013.01); F21S 41/322 (2018.01); F21S 43/315 (2018.01); F21S 43/40 (2018.01); F21S 43/402 (2024.05); F21V 5/002 (2013.01); F21V 5/005 (2013.01);
Abstract
A collimator () for collimating light uses a plurality of optical surfaces each forming optical boundary surfaces with a change in the optical density. The collimator () has a substantially flat light entry surface (), a convex light exit surface () and a totally reflective side wall () connecting the light entry surface () to the light exit surface (). A portable lighting device is provided having such a collimator. In order to provide a collimator and a portable lighting device having a collimator which achieves a better light distribution, the light exit surface of the collimator has light-refracting structures ().