Patent ID: 9535307
Date: 2017-01-03
CPC Classifications: A47F,E06B,G02F,G03B,G06K,H04N

Claim:
1. A light shielding device, comprising: a light shielding wall configured to include a plurality of panels, the light shielding wall being used as a partition of a first space and a second space, the plurality of panels being controllable in either a light transmission state in which light is transmitted or a light shielding state in which light is shielded; an optical path specifying unit configured to specify a predetermined optical path to be passed through the light shielding wall; a panel specifying unit configured to specify a panel on the light shielding wall, the panel being corresponded to a position at which the predetermined optical path specified by the optical path specifying unit passes through the light shielding wall; a controller configured to control the light transmission state or the light shielding state for the plurality of panels on the light shielding wall based on information about the panel specified by the panel specifying unit, a start position specifying unit configured to specify a start position in the first space from which the predetermined optical path passes through the light shielding wall; and an end position specifying unit configured to specify an end position in the second space at which the predetermined optical path has passed through the light shielding wall, wherein the optical specifying unit is configured to specify the predetermined optical path based on information about the start position specified by the start position specifying unit and the end position specified by the end position specifying unit.