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:
Jan. 10, 2023
Filed:
Apr. 16, 2020
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventor:
Xueqin Lin, Shanghai, CN;
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); G02B 27/09 (2006.01); G02B 27/30 (2006.01); G02B 19/00 (2006.01);
U.S. Cl.
CPC ...
H04N 5/2256 (2013.01); G02B 19/0014 (2013.01); G02B 19/0061 (2013.01); G02B 27/0927 (2013.01); G02B 27/0961 (2013.01); G02B 27/30 (2013.01); H04N 5/2252 (2013.01); H04N 5/2253 (2013.01); H04N 5/2254 (2013.01);
Abstract
An apparatus is disclosed including: a light source, a Fresnel lens, and a lens array. The Fresnel lens is disposed upstream from the light source to collimate light output by the light source. The lens array is disposed upstream from the Fresnel lens to mix collimated light that is output from the Fresnel lens. The lens array includes a plurality of optical elements arranged on a substrate. Each optical element includes a respective first planar surface arranged to face towards a different respective portion of the Fresnel lens and a second convex surface arranged to face away from the Fresnel lens.