Opto-electronic module including a non-transparent separation member between a light emitting element and a light detecting element

Abstract

An opto-electronic sensor module (e.g., an optical proximity sensor module) includes a substrate, a light emitter mounted on a first surface of the substrate, the light emitter being operable to emit light at a first wavelength, and a light detector mounted on the first surface of the substrate, the light detector being operable to detect light at the first wavelength. The module includes an optics member disposed substantially parallel to the substrate, and a separation member disposed between the substrate and the optics member. The separation member may surround the light emitter and the light detector, and may include a wall portion that extends from the substrate to the optics member and that separates the light emitter and the light detector from one another. The separation member may be composed, for example, a thermosetting polymer material, a UV-curing polymer material or a visible light-curing polymer material, wherein the separation member further includes one or more inorganic fillers and/or dyes that make the separation member substantially non-transparent to light detectable by the light detector and/or emitted by the light emitter.