Abstract: An optical finger navigation module includes a light source configured for emitting light in a first spectrum; a cover housing disposed above the light source, the cover housing including a window plate that is configured to transmit light in at least the first spectrum, and a light guiding structure that is configured to transmit light in at least a second spectrum; a first light sensor configured to sense light in the first spectrum originally emitted by the light source, reflected by an object, and then transmitted through the window plate; a second light sensor configured to sense light in the second spectrum transmitted through the light guiding structure or the window plate; and a substrate. The light source, the cover housing, the first light sensor and the second light sensor are coupled and mounted to the substrate.

Abstract: An active optical connector using an audio port includes a plug insertable into a jack having an optical transceiver module. A conductor is mounted on the plug. Optical fibers extend through a central bore of the plug and have front ends held in a fiber ferrule. The jack has a terminal for contacting the conductor on the plug. The optical transceiver module has a receptacle for receiving the fiber ferrule. A light source emits light to an optical fiber, and a photo-detector receives light from another optical fiber. A controller chip has a converting circuit configured to convert electrical signals into optical signal and optical signals into electrical signals.

Abstract: An optical finger navigation module includes a light source configured for emitting light in a first spectrum; a cover housing disposed above the light source, the cover housing including a window plate that is configured to transmit light in at least the first spectrum, and a light guiding structure that is configured to transmit light in at least a second spectrum; a first light sensor configured to sense light in the first spectrum originally emitted by the light source, reflected by an object, and then transmitted through the window plate; a second light sensor configured to sense light in the second spectrum transmitted through the light guiding structure or the window plate; and a substrate. The light source, the cover housing, the first light sensor and the second light sensor are coupled and mounted to the substrate.