Patent ID: 11877076
Assignee: FUJIFILM CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. An imaging method comprising:
a step of causing a first polarizer to align a polarization direction of light transmitted through a first pupil region and a second pupil region of an imaging optical system, which has a pupil region including the first pupil region and the second pupil region different from the first pupil region, with a first polarization direction;
a step of causing a wave plate to convert linearly polarized light aligned in the first polarization direction by the first polarizer into circularly or elliptically polarized light;
a step of causing a second polarizer to transmit light in a second polarization direction different from the first polarization direction in the light which has been transmitted through the first pupil region and has been converted into the circularly or elliptically polarized light;
a step of causing a third polarizer to transmit light in a third polarization direction, which is different from the first polarization direction and is orthogonal to the second polarization direction, in the light which has been transmitted through the first pupil region and has been converted into the circularly or elliptically polarized light; and
a step of generating a first image corresponding to the light transmitted through the first pupil region and a second image corresponding to the light transmitted through the second pupil region on the basis of pixel signals of a first pixel and a second pixel of an imaging element which receives the light transmitted through the first pupil region and the second pupil region and has a plurality of pixel units each of which is a set of the first pixel receiving the light in the second polarization direction and the second pixel receiving the light in the third polarization direction.