| 摘要 |
A proximity sensor for an electronic device (300,500,600,700) comprises a proximity module (302,702), a lens (310) and an optical module (330,530,630,730) secured in an air gap (312) therebetween. The proximity module has an emitter (304) and a detector (306) and is configured to generate a signal that is a function of light emitted by the emitter, and light detected by the detector, some portion of the detected light having been reflected by a target (101) external to the electronic device. A transmissive-reflective surface (322,522,622,722) of the optical module is aligned with the emitter field of view 'FOV' (305) and the detector FOV. The optical module guides emitted light through a transmissive portion of the lens to the exterior of the electronic device, and guides target-reflected light collected by the transmissive portion to the detector. The emitter FOV and the detector FOV are substantially aligned with one another. |
