发明名称 |
Position detecting device capable of improving detection accuracy |
摘要 |
A position detecting device includes an optical position detecting element and a position information portion which are disposed so as to be opposed to each other. One of the optical position detecting element and the position information portion being mounted on the movable portion while the other thereof is mounted on an internal wall of a cabinet. The position information portion has a pattern where a signal level produced by the optical position detecting element changes in a continuous manner when the movable portion moves in a predetermined direction. The position detecting device carries out position detection of the movable portion in accordance with the signal level.
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申请公布号 |
US2008265136(A1) |
申请公布日期 |
2008.10.30 |
申请号 |
US20080148793 |
申请日期 |
2008.04.22 |
申请人 |
MITSUMI ELECTRIC CO. LTD. |
发明人 |
TANAKA TOYOKI;YAMADA TSUKASA |
分类号 |
G01D5/34;G02B7/02 |
主分类号 |
G01D5/34 |
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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