Patent ID: 11879634
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G  H  E | IPC F

Claim 5:
6. The illumination device according to claim 1, wherein
the frame-like member includes a light transmissive member,
the light source is arranged to make light enter the frame-like member from a back side of the frame-like member when a surface of the frame-like member on a side facing the space is defined to be on a front side and a side opposite to the front side is defined as the back side, and
the light amount regulation part includes a first light restriction member that is arranged in the dark part region or a region corresponding to the dark part region in an optical path until the light emitted from the light source enters a back surface of the frame-like member and is emitted from a front surface of the frame-like member as light heading for the space and absorbs or reflects at least a part of incident light.