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:
Mar. 10, 2021
Applicant:
Pixart Imaging Inc., Hsin-Chu County, TW;
Inventor:
Sai-Mun Lee, Penang, MY;
Assignee:
PIXART IMAGING INC., Hsin-Chu County, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/09 (2006.01); G06F 3/03 (2006.01); G06F 3/0354 (2013.01);
U.S. Cl.
CPC ...
G02B 27/0916 (2013.01); G02B 27/0905 (2013.01); G02B 27/0955 (2013.01); G06F 3/0317 (2013.01); G06F 3/0304 (2013.01); G06F 3/03543 (2013.01);
Abstract
There is provided an illumination system of a navigation device including a light beam shaping optics, and a first light source and a second light source having different characteristics. The light beam shaping optics is used to shape light beams emitted by the first light source and the second light source to illuminate a work surface with substantially identical incident angles and/or beam sizes.