Sensor module with dual optical sensors for a camera

摘要

A sensor module has first and second sensor arrays formed on a substrate, with the first and second sensor arrays adapted to share common readout circuitry and shared read out for a pair of sensors on a single array.

主权项

1. A sensor module comprising:
a first integrated circuit die substrate; a second substrate on the first integrated circuit die substrate and forming a cavity therebetween; first and second sensor arrays formed on the first integrated circuit die substrate and enclosed by the cavity, each sensor array having a plurality of pixels and an optical axis, with the cavity being shared by said first and second sensor arrays, and with said first sensor array configured for use in an infrared (IR) light condition and with said second sensor array configured for use in a visual light condition, wherein the first sensor array has a deeper junction depth in the first integrated circuit die substrate than a junction depth of the second sensor array to detect IR wavelengths and each sensor array including a plurality of microlenses, wherein a microlens is arranged to a specific pixel to focus light onto the respective pixel; first and second optical lenses, each having an optical axis and cooperating with respective first and second sensor arrays to form first and second camera assemblies, wherein the optical axis of the first optical lens is offset from the optical axis of the first sensor array and the first optical lens is smaller in diameter than the second optical lens; and common readout circuitry coupled to said first and second sensor arrays for combining outputs from said first and second sensor arrays to compensate for different light conditions.