发明申请
- 专利标题： OPTICAL SENSORS THAT REDUCE SPECTRAL REFLECTIONS
- 专利标题（中）： 减少光谱反射的光学传感器
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申请号： US12499723申请日： 2009-07-08
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公开(公告)号： US20100258712A1公开(公告)日： 2010-10-14
- 发明人: Lynn K. Wiese , Nikhil Kelkar , Viraj Patwardhan
- 申请人： Lynn K. Wiese , Nikhil Kelkar , Viraj Patwardhan
- 申请人地址： US CA Milpitas
- 专利权人： INTERSIL AMERICAS INC.
- 当前专利权人： INTERSIL AMERICAS INC.
- 当前专利权人地址： US CA Milpitas
- 主分类号： H01L31/0232
- IPC分类号： H01L31/0232 ; H01L33/00 ; H01L21/00
摘要：
An optical sensor device comprises a light source, a light detector, and an opaque light barrier including a first portion to block light from being transmitted directly from the source to the detector. A second portion of the light barrier extends from the first portion in a direction towards the light source, such that a portion of the second portion covers at least a portion of light emitting element(s) of the source, to reduce an amount of specular reflections, if a light transmissive cover plate were placed over the sensor. Additionally, a third portion of the barrier can extend from the first portion, in a direction towards to the detector, such that a portion of the third portion covers at least a portion of light detecting element(s) of the detector, to reduce an amount of specular reflections that would be detected by the detecting element(s) of the detector, if a light transmissive cover plate were placed over the sensor. Additionally, an off-centered lens can cover a portion of the light source.
公开/授权文献
- US08232541B2 Optical sensors that reduce specular reflections 公开/授权日：2012-07-31
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