An over 200-dB dynamic range CMOS image sensor combining a lateral overflow integration with photo-current readout operation

Nana Akahane, Noriko Ide, Satoru Adachi, Koichi Mizobuchi, Shigetoshi Sugawa

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A wide dynamic range 64×64 CMOS image sensor with 20×20μm2 pixel that combines a lateral-overflow integration voltage-readout operation with the current readout operation from the buried photo-diode has been developed. In the voltage readout operation, an over 160-dB dynamic range image with a linear response is obtained from sequential electronic shutter operations from 1/30 s to 1/130 ks with a dynamic range of about 100-dB within a light intensity range from about 10-2lx to 106lx. In addition, an over 200-dB dynamic range performance of up to 108lx or more with few time exposures in the high illuminance region is made possible by combining it with the current reading operation. More than 40 dB for all noises, including photon shot noise, occurs around all the switching points.

本文言語English
ページ(範囲)347-359
ページ数13
ジャーナルKyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers
61
3
DOI
出版ステータスPublished - 2007 3

ASJC Scopus subject areas

  • メディア記述
  • コンピュータ サイエンスの応用
  • 電子工学および電気工学

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