Title:
LIGHT MODULATION DEVICE AND METHOD FOR CONTROLLING SPATIAL LIGHT MODULATOR
Document Type and Number:
WIPO Patent Application WO/2024/062721
Kind Code:
A1
Abstract:
This light modulation device comprises a light source, a control unit, and a spatial light modulator. The light source outputs a laser beam having strength corresponding to set strength. The spatial light modulator includes a plurality of pixel electrodes, a liquid crystal layer, a driving unit, and a cooling unit. The liquid crystal layer modulates a phase of the laser beam according to the size of an electric field formed by each of the plurality of pixel electrodes. The driving unit applies a voltage to the plurality of pixel electrodes. The cooling unit cools the liquid crystal layer such that the temperature of the liquid crystal layer approaches a set temperature. The control unit determines the set temperature of the cooling unit on the basis of the set strength of the laser beam.
Inventors:
ITO HARUYASU (JP)
Application Number:
PCT/JP2023/024804
Publication Date:
March 28, 2024
Filing Date:
July 04, 2023
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
G02F1/133; G02F1/13
Foreign References:
| JP2011150222A | 2011-08-04 | |||
| JP2011209514A | 2011-10-20 | |||
| JP2009294266A | 2009-12-17 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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