Title:
LIGHT CONTROL MODULE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2023112517
Kind Code:
A
Abstract:
To calculate a liquid crystal permeability by correcting a change due to a temperature characteristic without using a temperature sensor.SOLUTION: A light control module of the present disclosure, comprises: a liquid crystal panel that adjusts a light transmittance; a light emission element that irradiates a detection light; a first light reception element that receives first detection light from the detection light that transmits the liquid crystal panel, and outputs a first output value related to a light quantity of the first detection light; a second light reception element that receives second detection light from the detection light that does not transmit the crystal panel, and outputs a second output value related to a light quantity of the second detection light; and a transmissivity calculation unit that corrects the first output value on the basis of the change of the second output value due to a temperature change, and calculates a liquid crystal transmissivity of the liquid crystal panel on the basis of the corrected first output value.SELECTED DRAWING: Figure 3
Inventors:
MORITA SHUJI
TAKAHASHI MASAYA
TAKAHASHI MASAYA
Application Number:
JP2022014356A
Publication Date:
August 14, 2023
Filing Date:
February 01, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H04N23/75; G02F1/13; G03B11/00; G03B17/02; H04N23/55
Attorney, Agent or Firm:
Hiroshi Okabe
Kenichi Nakatani
Kenichi Nakatani