Title:
IMAGING OPTICAL SYSTEM AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/059763
Kind Code:
A1
Abstract:
This imaging optical system is provided with: an aperture diaphragm; an image-forming optical system for forming an image on an imaging surface of an imaging element; an optical phase modulation element which is formed from a substance having a birefringence and which gives two pupil functions to the image-forming optical system. In the imaging optical system, the following formulae are satisfied. (1): 1≤(2×L×tan(w)+D)/D<1.4, (2): λ/4*0.75
Inventors:
KIKUCHI NAOMICHI (JP)
NAKAYAMA MIKI (JP)
NAKAYAMA MIKI (JP)
Application Number:
PCT/JP2020/030000
Publication Date:
April 01, 2021
Filing Date:
August 05, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G02B13/00; A61B1/00; G02B5/30; G02B21/36; G02B23/26; H04N5/225; H04N5/232
Domestic Patent References:
WO2018109117A1 | 2018-06-21 |
Foreign References:
JP2006053218A | 2006-02-23 | |||
US20160291230A1 | 2016-10-06 | |||
JP2017158764A | 2017-09-14 | |||
US20090116096A1 | 2009-05-07 | |||
JP2015005919A | 2015-01-08 | |||
JP2018101065A | 2018-06-28 | |||
JP2010271689A | 2010-12-02 | |||
US20120281280A1 | 2012-11-08 | |||
JP2019174200A | 2019-10-10 |
Other References:
See also references of EP 4012471A4
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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