Patent ID: 7538311
Filing Date: 2009-05-26
Classification: H01L,H04N

Abstract:
1. An image sensor comprising: a plurality of light-receiving elements disposed inside the image sensor in a matrix arrangement corresponding to respective pixels, the light-receiving elements each including a light-receiving surface at a front face and accumulating charge in accordance with light amounts received at the light-receiving surface; and a charge output component that outputs the charges accumulated at the plurality of light-receiving elements to outside the image sensor, wherein the image sensor is configured to enable incidence of light on rear faces of the plurality of light-receiving elements, and the plurality of light-receiving elements are capable of accumulating charges in accordance with light amounts received at the rear faces, and wherein the image sensor further comprises a first filter disposed at the front face side of the plurality of light-receiving elements, the first filter transmitting light of a predetermined wavelength and causing the light of the predetermined wavelength to be incident on at least some of the plurality of light-receiving elements; and a second filter disposed at the rear face side of the plurality of light-receiving elements, the second filter transmitting light of a wavelength different from the predetermined wavelength and causing the light of the wavelength different from the predetermined wavelength to be incident on at least some of the plurality of light-receiving elements.