Opto-electronic modules including features to help reduce stray light and/or optical cross-talk

摘要

Opto-electronic modules, which can be fabricated in a wafer-scale process, include light emitting and/or light sensing devices mounted on or in a substrate. The modules, which can include various features to help reduce the occurrence of optical cross-talk and help prevent interference from stray light, can be used in a wide range of applications, including medical and health-related applications. For example, performing a measurement on a human body can include bringing a portion of the human body into direct contact with an exterior surface of the opto-electronic module and using a differential optical absorption spectroscopy technique to obtain an indication of a physical condition of the human body.

主权项

1. An opto-electronic module comprising:
a substrate in which or on which are mounted a plurality of opto-electronic devices; and a cover over the substrate, wherein the cover includes first regions respectively aligned with the plurality of opto-electronic devices, and wherein the first regions are substantially transparent to a particular one or more wavelengths of light emitted by or sensed by the respective opto-electronic devices, wherein optical axis of adjacent ones of the first regions are separated from one another by a respective second light blocking region embedded in the cover, the second light blocking region being substantially non-transparent to the particular one or more wavelengths and being composed of epoxy containing carbon black.