发明名称 |
REFLECTING PLATE AND REFLECTING FRAME |
摘要 |
An incident angle when illumination light from a position detecting device enters a reflecting surface may be large in some cases. In such cases, the retro-reflection rate of a reflecting surface having a prism structure decreases, leading to a cause of erroneous detection. In order to solve this problem, provided is a reflecting plate including a reflecting surface that retro-reflects illumination light emitted from an optical position detecting device towards the position detecting device that includes a light source, the reflecting plate further including: a surface structure in which a concavo-convex pattern having the same triangle shape in cross-section in a width direction of the reflecting plate continuously appears in a longitudinal direction thereof; and a retro-reflecting layer in which reflecting beads are evenly placed on at least one oblique surface of the concavo-convex pattern. |
申请公布号 |
US2012154942(A1) |
申请公布日期 |
2012.06.21 |
申请号 |
US201113236956 |
申请日期 |
2011.09.20 |
申请人 |
MIYAO HIROYUKI;HOSOGAI TOSHIO;EZURE MICHIAKI;TOKAI TEC CO., LTD.;HITACHI SOLUTIONS, LTD. |
发明人 |
MIYAO HIROYUKI;HOSOGAI TOSHIO;EZURE MICHIAKI |
分类号 |
G02B5/09;G02B7/182 |
主分类号 |
G02B5/09 |
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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