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:
May. 12, 2015
Filed:
Mar. 17, 2013
Applicant:
Lite-on IT Corporation, Taipei, TW;
Inventors:
Wei-Tien Chang, Hsinchu, TW;
Fu-Ji Tsai, Hsinchu, TW;
Chih-Chien Lu, Hsinchu, TW;
Wei-Chih Lin, Hsinchu, TW;
Assignee:
Lite-On Technology Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); G03B 21/00 (2006.01); G06K 9/00 (2006.01); G03B 21/20 (2006.01); G06F 3/01 (2006.01); G06F 3/042 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2053 (2013.01); G03B 21/26 (2013.01); G06K 9/00228 (2013.01); G06K 9/00362 (2013.01); G06K 9/00369 (2013.01); G06F 3/017 (2013.01); G06F 3/0425 (2013.01); G03B 21/2033 (2013.01); G03B 21/2086 (2013.01); H04N 9/3161 (2013.01); H04N 9/3194 (2013.01);
Abstract
A laser projection system comprising a laser light and a human body detection module is disclosed. The laser light source emits a laser light. The human body detection module detects a reflective light of the laser light irradiated on an object. The human body detection module determines whether the object is a human according to a relationship between several reflectivity indexes of the reflective light. If the relationship corresponds to predefined situation, the human body detection module reduces a laser output intensity of the laser light.