发明名称 Optical transmission device
摘要 The optical transmission device comprises a transmitter which emits radiation vertically with respect to a covering surface. A reflection surface reflects a portion of the emitted radiation back onto an optically sensitive reception zone of a monitor receiver which is disposed on the same side as the transmitter. An intermediate body with a reflecting circumferential surface is disposed between the reflection surface and the reception zone. At least a portion of the reflected radiation passes from the circumferential surface to the reception zone, which significantly increases the yield of the reflected portion used for monitoring purposes.
申请公布号 US6370181(B1) 申请公布日期 2002.04.09
申请号 US19990375066 申请日期 1999.08.16
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 KROPP JOERG-REINHARDT
分类号 G02B6/42;(IPC1-7):H01S3/08 主分类号 G02B6/42
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