Title:
ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/054364
Kind Code:
A1
Abstract:
This illumination device, which reproduces the sky visible through a window, realizes a smaller size and simpler structure, and reproduces a more natural scene without limits in terms of placement location or number. An illumination device (200) according to the present disclosure is characterized by comprising: a light source (1); a diffuser (100) having a scattering structure (e.g., particles 111) that scatters incident light, the diffuser having at least one light incident surface (101a), a first light emitting surface (101b) where first emitted light (L1) including scattered light generated by the scattering structure is emitted, and a second light emitting surface (101c) where second emitted light (L2) differing from the first emitted light is emitted; a sunshine forming part (3) that has a light transmissive member and is provided to at least one location around the diffuser; and a fold-back portion (2) that guides the second emitted light toward the sunshine forming part.
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Inventors:
NISHIMURA MASATOSHI (JP)
OKAGAKI SATORU (JP)
OKAGAKI SATORU (JP)
Application Number:
PCT/JP2022/035953
Publication Date:
April 06, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21S8/04; F21S2/00; F21Y115/30
Domestic Patent References:
| WO2020240664A1 | 2020-12-03 | |||
| WO2015055430A1 | 2015-04-23 |
Foreign References:
| JP2020191308A | 2020-11-26 | |||
| JP2016540349A | 2016-12-22 |
Attorney, Agent or Firm:
KURATANI, Yasutaka et al. (JP)
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