公开(公告)号：US20220038613A1

公开(公告)日：2022-02-03

申请号：US17379330

申请日：2021-07-19

Applicant: OLYMPUS CORPORATION

Inventor： Takashi KOBAYASHI ,  Satoru ADACHI ,  Makoto IKEDA

IPC: H04N5/235 ,  H04N5/225 ,  H04N9/04 ,  A61B1/05 ,  A61B1/06

Abstract: An imaging device for performing phase-difference detection auto-focus includes an image sensor including a plurality of normal pixels and a plurality of phase-difference detection pixels arranged in a matrix shape; an exposure control circuit controlling a first exposure time driving the normal pixels for generating image signals, and a second exposure time driving the phase-difference detection pixels for generating phase-difference detection signals; and a lighting device irradiating the imaging object with a first irradiating light at the first exposure time, and irradiating the imaging object with a second irradiating light at the second exposure time. The wave length range of the second irradiating light is narrower than the wave length range of the first irradiating light.