Title:
IMAGING DEVICE
Document Type and Number:
Japanese Patent JP2020057892
Kind Code:
A
Abstract:
To provide an imaging device capable of reducing an influence of periodic noise and suppressing the deterioration of focus detection accuracy while minimizing an increase in time required to read a signal in one row.SOLUTION: An imaging device performs a first reading operation V1-V7 to add and read signals of first and second photoelectric conversion units, a second reading operation V8-V13 to independently read the signals of the first and second photoelectric conversion units, reads by thinning out at a predetermined cycle in a vertical direction in the first reading operation, sequentially reads rows that are not read in a first scan at the predetermined cycle in the second reading operation, detects phase difference by using a signal read by the second reading operation, and in the second reading operation, performs control so that time difference between reading timing of a reference signal 1 of the first photoelectric conversion unit and reading timing of a reference signal 2 of the second photoelectric conversion unit has a predetermined relationship with the frequency of a noise source that occurs during a reading operation of an image signal.SELECTED DRAWING: Figure 7
Inventors:
HATAKEYAMA YASUNORI
Application Number:
JP2018186276A
Publication Date:
April 09, 2020
Filing Date:
October 01, 2018
Export Citation:
Assignee:
CANON KK
International Classes:
H04N5/369; G02B7/28; G02B7/34; G03B13/36; H04N5/357
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa