发明名称 |
METHOD FOR ARRANGING PHOTORECEIVING LENS, AND OPTICAL DISPLACEMENT SENSOR |
摘要 |
An optical displacement sensor (10) comprises a projection module (9); a light-receiving element (13) configured to receive light projected by the projection module (9) and reflected by an object to be measured (16); and a light-receiving lens (14) for imaging the reflected light onto the light-receiving element (13), the light-receiving lens being positioned between the object to be measured (16) and the light-receiving element (13). A position where the light is reflected by the object to be measured (16) is set so as to lie within a predetermined range (W 1 ) on an optical axis (L 1 ) of the projection module (9), between a first position (P N1 ) closer to a light source (11) and a second position (P F1 ) further away from the light source (11). The light-receiving lens (14) is arranged so that the angle of incidence (¸1) of reflected light incident on the light-receiving lens (14) from the first position (P N1 ) and the angle of incidence (¸2) of reflected light incident on the light-receiving lens (14) from the second position (P F1 ) are identical. |
申请公布号 |
EP2538173(A4) |
申请公布日期 |
2014.10.22 |
申请号 |
EP20110828507 |
申请日期 |
2011.03.24 |
申请人 |
OMRON CORPORATION |
发明人 |
YAMAKAWA, KENTA;ICHIYANAGI, HOSHIBUMI |
分类号 |
G01C3/06;G01B11/00;G01B11/26;G01S7/48;G01S7/481;G01S7/497;G01S17/48 |
主分类号 |
G01C3/06 |
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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