1. JP2021004907 - 配光デバイスの制御装置、配光制御システム及び配光制御方法

PROBLEM TO BE SOLVED: To provide a control device of a light distribution device capable of enhancing security.

SOLUTION: A control device 10 of a light distribution device 100 includes: an acquisition part 20 for acquiring time information showing time; and a control part 22 for controlling the light distribution device 100 provided with a light distribution layer 130 for distributing incident light on the basis of the time information. The light distribution layer 130 includes an irregularity layer 131 having a plurality of protrusions 133, and a variable refractive index layer 132 arranged so as to fill spaces among the protrusions 133 to change a refractive index according to a given electric field. The control part 22 has a first mode for generating a first reflective index difference in an interface between the plurality of protrusions 133 and the variable refractive index layer 132, and a second mode for generating a second refractive index difference larger than the first refractive index difference in the interface between the plurality of protrusions 133 and the variable refractive index layer 132, and executes the second mode in the case where a time shown by the time information is included in a night time.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2021,JPO&INPIT