Patent ID: 7038184
Filing Date: 2006-05-02
Classification: H01L

Abstract:
1. An image sensor for a digital camera module, comprising: a diffraction grating array, comprising a plurality of round gratings; a microlens array, comprising a plurality of microlenses arranged in a two-dimensional matrix; a light receiving unit, comprising a plurality of pixels arranged in a two-dimensional array; and a signal processing circuit board; wherein the diffraction grating array, the microlens array, the light receiving unit and the signal processing circuit board are arranged one above the other in that order from top to bottom, and each round grating corresponds to a pixel vertically located therebelow; and incoming light passes through the diffraction grating array, is then vertically incident on the microlens array, and is then incident on the light receiving unit, and the light receiving unit converts received light signals into electronic signals, and the signal processing circuit board processes the electronic signals in order to form image output signals.