US 12,107,396 B2
Light-emitting device, optical device, and information processing device
Takashi Kondo, Ebina (JP); Kenichi Ono, Ebina (JP); Daisuke Iguchi, Ebina (JP); Yoshinori Shirakawa, Ebina (JP); Tomoaki Sakita, Ebina (JP); and Tsutomu Otsuka, Yokohama (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Sep. 17, 2021, as Appl. No. 17/478,551.
Application 17/478,551 is a continuation of application No. PCT/JP2019/048136, filed on Dec. 9, 2019.
Claims priority of application No. 2019-074541 (JP), filed on Apr. 10, 2019.
Prior Publication US 2022/0006268 A1, Jan. 6, 2022
Int. Cl. H01S 5/42 (2006.01); G01B 11/24 (2006.01); G06V 10/88 (2022.01); G06V 20/64 (2022.01); G06V 40/16 (2022.01)
CPC H01S 5/423 (2013.01) [G01B 11/24 (2013.01); G06V 10/88 (2022.01); G06V 20/64 (2022.01); G06V 40/169 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a first light-emitting element array that includes a plurality of first light-emitting elements arranged at a first interval;
a second light-emitting element array that includes a plurality of second light-emitting elements arranged at a second interval wider than the first interval, the second light-emitting element array being configured to output a light output larger than a light output of the first light-emitting element array, and being configured to be driven independently from the first light-emitting element array; and
a light diffusion member including a first region and a second region, wherein
the first region is provided on an emission path of the first light-emitting element array,
the second region is provided on an emission path of the second light-emitting element array, and
a diffusion angle of the first region is smaller than a diffusion angle of the second region.