Kao Ming-Tsan,Liao Chi-Chieh,Lin Chih-Hsin,Su Tzung-Min
申请号：
US201414314455
公开号：
US9471180(B2)
申请日:
2014.06.25
申请国别(地区):
美国
年份:
2016
代理人:
Tung & Associates
摘要：
The present invention discloses an optical touch panel system and a positioning method for positioning an object in a touch control area. The system includes: at least two reflective elements respectively disposed on a first side and a second side of the touch control area, wherein the sum of lengths of the first side and the second side is larger than the sum of lengths of the two reflective elements; two lighting elements respectively disposed on a third side and a fourth side of the touch control area; an image sensor forming projected images by capturing an image of the object and at least one mirror image of the object formed by the two reflective elements; and a processor calculating the coordinates of the object according to geometric information of the projected images.
