Patent ID: 11936829
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. An illuminating device comprising:
a plurality of first light sources of a side-view type arrayed on a circuit board having an implementation surface, the plurality of first light sources having a plurality of first light emitting surfaces configured to emit light, the plurality of first light emitting surfaces being vertically on the implementation surface of the circuit board-; and
a second light source of the side-view type on an upstream side of the plurality of first light sources in an irradiation direction of the light, the second light source having a second light emitting surface configured to emit, the second light emitting surface being vertically on the implementation surface of the circuit board,
wherein the second light source has a directivity angle different from a directivity angle of each one of the plurality of first light sources.