发明名称 |
OPTICAL INTERRUPTION SENSOR WITH OPPOSED LIGHT EMITTING DIODES |
摘要 |
An optical-interrupter provides a mechanically integrated electric light source and electric light sensor positioned across a gap to transmit a light beam across the gap that may be interrupted with an opaque vane. The optical-interrupter uses conventional LEDs for both the light source and a light receiver. An integrated circuit comparator may be used to provide an adjustable threshold for the determination of whether the light beam is blocked.
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申请公布号 |
US2012138777(A1) |
申请公布日期 |
2012.06.07 |
申请号 |
US201013388505 |
申请日期 |
2010.06.17 |
申请人 |
LARSON ERIC K.;WEBSTER MATTHEW C.;KANG JIAN HONG;GRIMES MATTHEW J.;ILLINOIS TOOL WORKS INC. |
发明人 |
LARSON ERIC K.;WEBSTER MATTHEW C.;KANG JIAN HONG;GRIMES MATTHEW J. |
分类号 |
H01L31/167 |
主分类号 |
H01L31/167 |
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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