2003 年 57 巻 8 号 p. 1013-1018
A new CMOS image sensor featuring logarithmic conversion is described. The sensor has 654 (H) × 494 (V) pixels, and the cell size is 8μm (H) ×8μm (V). We previously developed logarithmic conversion CMOS image sensors with either an FPN cancellation circuit or an integration circuit. This one has both. The sensor shows clear images without FPN and without flicker noise in brightness fluctuation. Furthermore, the afterimage level was reduced by a new pixel driving method.