Title:
IMAGING DEVICE, IMAGING OPTICAL SYSTEM, AND IMAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/085368
Kind Code:
A1
Abstract:
Provided are an imaging device, an imaging optical system, and an imaging method with which images in mutually different wavelength bands can be captured simultaneously and in which focusing precision of the images can be improved. This imaging device (1) comprises: an imaging optical system (10) having a first pupil region that transmits light in a first wavelength band and a second pupil region that transmits light in a second wavelength band, the imaging optical system (10) reducing axial chromatic aberration of the imaging optical system (10) on the basis of the relationship between aberrations other than axial chromatic aberration of the imaging optical system (10) and the positions of the first and second pupil regions of the imaging optical system (10); an imaging element (100) including first pixels that receive light transmitted through the first pupil region of the imaging optical system (10) and second pixels that receive light transmitted through the second pupil region; and a signal processing unit (200) that processes signals outputted from the imaging element (100) and generates a first image in the first wavelength band and a second image in the second wavelength band on the basis of output signals of the first pixels and output signals of the second pixels, respectively.
Inventors:
OKADA KAZUYOSHI (JP)
KISHINE YASUNOBU (JP)
KAWANAGO ATSUSHI (JP)
KISHINE YASUNOBU (JP)
KAWANAGO ATSUSHI (JP)
Application Number:
PCT/JP2020/040065
Publication Date:
May 06, 2021
Filing Date:
October 26, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B13/00; G01J3/36; G02B5/20; G02B5/30; G03B11/00; H04N5/225
Domestic Patent References:
| WO2014020791A1 | 2014-02-06 | |||
| WO2012043211A1 | 2012-04-05 |
Foreign References:
| JP2004157059A | 2004-06-03 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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