Light sensing device for detecting gestures having a casing with a lens receiving aperture disposed immediately adjacent to a display screen

摘要

Light sensing devices are described that have a lens to focus light. In one or more implementations, the light sensing devices include a substrate having a photodetector formed thereon. The photodetector is capable of detecting light and providing a signal in response thereto. The devices also include a display screen that allows light to at least substantially pass through the display screen. An optical baffle extends above a surface of the substrate to display screen and is configured to at least substantially prevent transmission of optical crosstalk to the photodetector. The devices also include a lens disposed proximate to the display screen. The lens is configured to focus light incident upon the lens and to pass the focused light to the photodetector.

主权项

1. A light sensing device comprising:
a substrate having a surface; a photodetector disposed over the surface of the substrate, the photodetector configured to detect light and to provide a signal in response thereto; an optical baffle extending from the surface to a display screen, the optical baffle configured to at least substantially prevent transmission of optical crosstalk to the photodetector; a casing having an exterior surface and an interior surface, the casing at least partially disposed over the substrate and the photodetector, the casing defining a lens receiving aperture, the lens receiving aperture positioned over the photodetector; and a lens having an exterior surface co-planar with the exterior surface of the casing and an interior surface extending beyond a plane defined by the interior surface of the casing, the lens disposed within the lens receiving aperture, the lens configured to focus light incident upon the lens and to pass the focused light to the photodetector.