Patent attributes
An imaging system may include a camera module with an image sensor having an array of image sensor pixels. The image sensor may include a substrate having an array of photodiodes, an array of microlenses formed over the array of photodiodes, and an array of color filter elements interposed between the array of microlenses and the array of photodiodes. A grid of baffles may be formed over the array of image pixels and may be configured to block stray light from striking the image pixels. The baffles may extend above the microlens array and may be tilted at an angle with respect to the optical axis of the image sensor. The angle at which each baffle is tilted may be proportional to the chief ray angle of an associated microlens. Baffles may be formed from a light-blocking material such as metal, photoresist, carbon, graphite, or other suitable material.
