IMAGING APPARATUS AND DRIVING METHOD OF THE SAME

• Main Authors: SANBONSUGI HIDEAKI, UCHIDA MINEO
• Format: Patent
• Language: English; Japanese
• Published: 15.11.2018
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of obtaining an excellent image quality while suppressing the increase of a reading time.SOLUTION: An imaging apparatus includes: a pixel region having a plurality of unit pixels in a matrix including first and second photoelectric conversion parts; a control part that reads a first signal mixing a signal of the first and second photoelectric conversion part in the matrix in a first reading out mode, and reads a second signal including the signal of at least the first photoelectric conversion part and a third signal including the signal of at least the second photoelectric conversion part in the matrix in a second reading out mode; and an OB clamp processing part that corrects the signal of each unit pixel in an open region within the pixel region on the basis of each unit pixel of a light shading region within the pixel region, the OB clamp processing part making different corrections depending on imaging conditions.SELECTED DRAWING: Figure 11 【課題】読み出し時間の増大を抑制しつつ、良好な画質を得ることができる撮像装置を提供することを課題とする。【解決手段】撮像装置は、各々が第１及び第２の光電変換部を含む行列状の複数の単位画素を有する画素領域と、第１の読み出しモードの行では、前記第１及び第２の光電変換部の信号を混合した第１の信号を読み出し、第２の読み出しモードの行では、少なくとも前記第１の光電変換部の信号を含む第２の信号と少なくとも前記第２の光電変換部の信号を含む第３の信号を読み出す読み出し制御部と、前記画素領域内の遮光領域の単位画素の信号を基に、前記画素領域内の開口領域の単位画素の信号を補正するＯＢクランプ処理部とを有し、前記ＯＢクランプ処理部は、撮影条件に応じて、異なる補正を行う。【選択図】図１１