Patent ID: 7855786
Filing Date: 2010-12-21
Classification: H04N

Abstract:
1. An imaging system, comprising: a camera comprising a detector having an image plane and photosensing layers beneath the image plane corresponding to different bands that each preferentially detect a different band; a multi-band, band pass filter for filtering radiation received from a target and optically conveying it to the image plane, the filter including at least some filter elements having more than two bands, wherein the filter elements comprise at least two different types of filter elements, each transmitting different bands to a corresponding spatial region of the image plane and conveying radiation to a pixel region of the image lane; wherein each of the filter elements conveys filtered radiation having more than two bands to a pixel region of the image plane and wherein the filtered radiation is further detected at each photosensing layer of the detector as the filtered radiation penetrates each layer of the detector in turn from the image plane, resulting in detected signals corresponding to each of the layers.