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:
Jul. 20, 2021

Filed:

Mar. 09, 2018
Applicant:

Lumileds Llc, San Jose, CA (US);

Inventors:

Kang Lu, Shanghai, CN;

Ping Wu, Shanghai, CN;

YiYu Cao, Shanghai, CN;

Hui-Kai Hsu, Shanghai, CN;

Assignee:

Lumileds LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 41/143 (2018.01); F21S 41/32 (2018.01); G02B 3/10 (2006.01); F21Y 115/10 (2016.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
G02B 3/10 (2013.01); F21S 41/143 (2018.01); F21S 41/322 (2018.01); F21Y 2115/10 (2016.08); G02B 2003/0093 (2013.01);
Abstract

The embodiments of the invention provide a multi-focal collimating lens and a headlight assembly for an automotive low beam. The multi-focal collimating lens includes a central collimating lens portion and two total internal reflection lens portions arranged on a left side and a right side of the central collimating lens portion. The central collimating lens portion and the total internal reflection lens portions share two focal points symmetrically located on both sides of a vertical symmetry plane of the multi-focal collimating lens. An upper edge and a lower edge of the multi-focal collimating lens are formed based on the two focal points, so that the headlight assembly is able to generate a cut-off line of the automotive low beam in a far-field light pattern of the multi-focal collimating lens.


Find Patent Forward Citations

Loading…