Patent ID: 9661241
Date: 2017-05-23
CPC Classifications: G02B,G06T,H01L,H04N

Claim:
1. An imaging device, comprising: a pixel array comprising a plurality of sub-arrays, wherein each sub-array of the plurality of sub-arrays includes four pixels comprising a first pixel, a second pixel, a third pixel and a fourth pixel, wherein the first pixel is disposed diagonally to the second pixel and the third pixel is disposed diagonally to the fourth pixel in each sub-array of the plurality of sub-arrays; a first filter disposed at the first pixel and configured to transmit incident light including at least red, green and blue spectrums; and a second filter disposed at the second pixel and configured to transmit the incident light, wherein the first filter has a transmittance to the incident light higher than a transmittance of the second filter, wherein a red-spectrum transmitting filter is disposed at the third pixel and a blue-spectrum transmitting filter is disposed at the fourth pixel, and wherein, responsive to a determined amount of the incident light on the four pixels, the first pixel is configured to output a first signal with a maximum magnitude out of signals output by the four pixels and the fourth pixel is configured to output a fourth signal with a minimum magnitude out of the signals output by the four pixels, and the second pixel is configured to output a second signal with a magnitude between a magnitude of the fourth signal output by the fourth pixel and a magnitude of a third signal output by the third pixel.