US 7,491,937 B2
Two-wavelength image sensor picking up both visible and infrared images
Junji Nakanishi, Chiyoda-ku (Japan); and Daisuke Takamuro, Chiyoda-ku (Japan)
Assigned to Mitsubishi Electric Corporation, Tokyo (Japan)
Filed on Apr. 02, 2007, as Appl. No. 11/695,302.
Claims priority of application No. 2006-163405 (JP), filed on Jun. 13, 2006.
Prior Publication US 2007/0284532 A1, Dec. 13, 2007
Int. Cl. H01L 25/00 (2006.01)
U.S. Cl. 250—332 10 Claims
OG exemplary drawing
 
1. A 2-wavelength image sensor picking up both a visible image and an infrared image, comprising a detector array including a plurality of visible radiation detectors and a plurality of uncooled infrared radiation detectors, said plurality of visible radiation detectors and said plurality of uncooled infrared radiation detectors being uniformly dispersedly arranged, wherein:
each of said visible radiation detectors configures a single pixel of said visible image; and
said plurality of uncooled infrared radiation detectors are divided into groups of N of said uncooled infrared radiation detectors, N being an integer of at least two, each of said groups having said N of said uncooled infrared radiation detectors electrically series connected to configure a single pixel of said infrared image.