Title:
CAMERA MODULE AND OPTICAL TOUCH SCREEN USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2012/011686
Kind Code:
A2
Abstract:
The present invention relates to a camera module and an optical touch screen using the same, the camera module including an infrared emitting diode for emitting infrared ray, a first infrared pass filter passing only the infrared ray reflected by a retro reflector, an object lens condensing the infrared ray that has passed the first infrared pass filter, a second infrared pass filter passing an infrared ray of a particular wave band among the infrared ray condensed by the object lens, and a linear sensor for detecting an area touched by incidence of infrared ray that has passed the second infrared pass filter.
Inventors:
HWANG, Woong (20th Fl. Seoul Square 541 Namdaemunno 5-ga Jung-gu, Seoul 100-714, KR)
Application Number:
KR2011/004940
Publication Date:
January 26, 2012
Filing Date:
July 06, 2011
Export Citation:
Assignee:
LG INNOTEK CO., LTD. (20th Fl. Seoul Square 541 Namdaemunno 5-ga Jung-gu, Seoul 100-714, KR)
HWANG, Woong (20th Fl. Seoul Square 541 Namdaemunno 5-ga Jung-gu, Seoul 100-714, KR)
HWANG, Woong (20th Fl. Seoul Square 541 Namdaemunno 5-ga Jung-gu, Seoul 100-714, KR)
International Classes:
H04N5/225; G06F3/041
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (4th Fl, Deuk-Young Bldg.423-5 Dogok-dong, Gangnam-Gu, Seoul 135-855, KR)
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