Title:
IMAGING DEVICE AND IMAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/131649
Kind Code:
A1
Abstract:
An imaging device 1 includes a light source 10, a spatial optical modulator 21, a Fourier transform optical system 30, a photodetector 40, and a control unit 50. The control unit 50: sets a first region and a second region on a modulation surface of the spatial optical modulator 21; acquires a light intensity value by setting an optical amplitude modulation pattern in the first region and performing optical amplitude modulation of the second region uniformly with a non-zero prescribed value; acquires a light intensity value by setting the optical amplitude modulation pattern in the first region and performing the optical amplitude modulation of the second region uniformly with zero; acquires a light intensity value by performing optical amplitude modulation of the first region uniformly with zero and performing the optical amplitude modulation of the second region uniformly with the prescribed value; and obtains, on the basis of these acquired light intensity values and the optical amplitude modulation pattern, a complex amplitude image of a region of an object corresponding to the first region. With this configuration, an imaging device and an imaging method capable of acquiring a high-resolution complex amplitude image of an object using a spatial optical modulator and a photodetector are obtained.
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Inventors:
NAKAMOTO KATSUHIRO (JP)
Application Number:
PCT/JP2020/045530
Publication Date:
July 01, 2021
Filing Date:
December 07, 2020
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
H04N5/232; G02B21/06; G02B21/36; G02F1/01; H04N5/225
Domestic Patent References:
| WO2014064636A2 | 2014-05-01 |
Foreign References:
| CN105467806A | 2016-04-06 | |||
| CN110231292A | 2019-09-13 | |||
| US20140198236A1 | 2014-07-17 | |||
| US20160276050A1 | 2016-09-22 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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