| 发明名称 | Optical proximity switch | ||
| 摘要 | An optical proximity switch includes an optical transmitter for emitting a light signal, a transmitting lens with total internal reflection-using the light signal to form and transmit a light beam , a receiver, an imaging receiving lens for receiving and transmitting to the receiver the light signal, and an electronic circuit for evaluating the light signal received by the receiver. | ||
| 申请公布号 | US8969786(B2) | 申请公布日期 | 2015.03.03 |
| 申请号 | US201213555471 | 申请日期 | 2012.07.23 |
| 申请人 | IFM Electronic GmbH | 发明人 | Harper John;Vinshtok Yevgeniy;Leedy Justin |
| 分类号 | H03K17/78 | 主分类号 | H03K17/78 |
| 代理机构 | MacMillan, Sobanski & Todd, LLC | 代理人 | MacMillan, Sobanski & Todd, LLC |
| 主权项 | 1. An optical proximity switch comprising: an optical transmitter for emitting a light signal; a transmitting lens including a region of total internal reflection using the light signal to form and transmit a light beam; a receiver; an imaging receiving lens for receiving and transmitting to the receiver the light signal; an electronic circuit for evaluating the light signal received by the receiver; and wherein the transmitting lens is located within a second circular area, and the receiving lens at least partially fills a crescent-shaped area portion of a first circular area that encompasses both the transmitting lens and the imaging receiving lens. | ||
| 地址 | Essen DE | ||