发明名称 |
OPTICAL POSITION DETECTION APPARATUS |
摘要 |
<p>An optical position detection apparatus includes a retroreflective member 10 and a detection unit 20. The retroreflective member 10 is disposed so as to cover two predetermined sides of the perimeter of the detection area 1. The detection unit 20 is disposed adjacent to a corner opposite to the two predetermined sides and detects a pointing position of the pointer by using reflection light reflected from the retroreflective member. The detection unit 20 includes two detection sections 21 each having a light source section that emits light traveling along the surface direction of the detection area and a camera section that images reflection light emitted from the light source section and reflected by the retroreflective member. The light source section has an irradiation angle wide enough to irradiate the two predetermined sides with light, and the camera section is disposed close to the light source section and has a viewing angle wide enough to image the two predetermined sides.</p> |
申请公布号 |
WO2010137277(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
WO2010JP03455 |
申请日期 |
2010.05.21 |
申请人 |
XIROKU, INC.;EIT CO.,LTD.;OGAWA, YASUJI |
发明人 |
OGAWA, YASUJI |
分类号 |
G06F3/042;G06F3/041 |
主分类号 |
G06F3/042 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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