US 12,073,739 B2
Video display device
Tetsuya Hayakawa, Tokyo (JP)
Assigned to SEGA FAVE CORPORATION, Tokyo (JP)
Appl. No. 18/039,529
Filed by SEGA FAVE CORPORATION, Tokyo (JP)
PCT Filed Jan. 13, 2022, PCT No. PCT/JP2022/000882
§ 371(c)(1), (2) Date May 31, 2023,
PCT Pub. No. WO2022/158364, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2021-006637 (JP), filed on Jan. 19, 2021.
Prior Publication US 2023/0419863 A1, Dec. 28, 2023
Int. Cl. G09B 27/00 (2006.01); F21V 9/40 (2018.01); F21V 11/14 (2006.01); F21V 13/02 (2006.01); F21V 14/08 (2006.01); F21W 121/00 (2006.01)
CPC G09B 27/00 (2013.01) [F21V 9/40 (2018.02); F21V 11/14 (2013.01); F21V 13/02 (2013.01); F21V 14/08 (2013.01); F21W 2121/008 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A video display device that projects and displays video including starry sky images corresponding to a starry-sky projection negative plate onto a target surface by radiation of light having penetrated said starry-sky projection negative plate onto said target surface via a projection lens, and that comprises:
a light source,
said projection lens,
said starry-sky projection negative plate,
a twinkling negative plate with uneven light-transmitting properties,
a starry-sky-end support unit that supports said starry-sky projection negative plate in a location onto which light from said light source is radiated,
a twinkling-end support unit that supports said twinkling negative plate between said starry-sky projection negative plate and said projection lens or between said light source and said starry-sky projection negative plate, and
an actuation mechanism that includes an actuator, and rotationally actuates, by power from said actuator, said starry-sky projection negative plate in a state of being supported by said starry-sky-end support unit and said twinkling negative plate in a state of being supported by said twinkling-end support unit,
wherein said video display device has a single support member formed with said starry-sky-end support unit and said twinkling-end support unit, and
wherein said support member is in the form of a placing tray that positions, places and supports said starry-sky projection negative plate and said twinkling negative plate.