Japan, March 5 -- HAMAMATSU PHOTONICS KK has got intellectual property rights for 'LIGHT MODULATING DEVICE AND METHOD FOR CONTROLLING SPATIAL LIGHT MODULATOR.' Other related details are as follows:
Application Number: JP,2022-149927
Category (FI): G02F1/13,505,G02F1/133,580
Stage: PROBLEM TO BE SOLVED: To provide a light modulating device that can reduce deviation of an actual phase modulation amount from a target phase modulation amount.SOLUTION: A light modulating device 1A comprises a light source 3, a control unit 7, and a spatial light modulator 10. The light source 3 outputs a laser beam La having an intensity according to a preset intensity. The spatial light modulator 10 has a plurality of pixel electrodes, a liquid crystal layer, a driving unit, and a cooling unit. The liquid crystal layer modulates the phase of the laser beam La according to the size of an electric field formed by the pixel electrodes. The driving unit applies voltage to the plurality of pixel electrodes. The cooling unit cools the liquid crystal layer so that the temperature of the liquid crystal layer becomes closer to a preset temperature. The control unit 7 determines the preset temperature for the cooling unit based on the preset intensity of the laser beam La.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Sept. 21, 2022
Publication Date: April 2, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
