| 摘要 |
An infrared (IR) transmission device comprising IR transmitter and receiver elements arranged in a housing, wherein a common, multi-segment lens element (29, 29A, 29B) is arranged ahead of the IR elements (22, 32), and each IR element (22, 32) has an associated lens segment (32, 33) of the lens element (29, 29A, 29B). |
