Title:
ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/020097
Kind Code:
A1
Abstract:
An illumination device (1) comprises: a light-emitting module (30); a luminance homogenization plate (50) that is disposed on the light emitting side of the light-emitting module (30); and a diffusion plate (60) which is disposed on the side of the luminance homogenization plate (50) opposite the light-emitting module (30) side thereof, and on which light that has passed through the luminance homogenization plate (50) is incident. The distance (H2) between the light-emitting module (30) and the diffusion plate (60) is more than twice the distance (H1) between the light-emitting module (30) and the luminance homogenization plate (50).
Inventors:
EHARA TAKESHI
AKIYAMA TAKAYUKI
ARAI TAKAFUMI
AKIYAMA TAKAYUKI
ARAI TAKAFUMI
Application Number:
PCT/JP2020/027309
Publication Date:
February 04, 2021
Filing Date:
July 14, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F21S8/02; F21V3/00; F21V7/00; F21V9/30; F21V11/02; F21V11/14; F21Y115/10
Domestic Patent References:
| WO2012023602A1 | 2012-02-23 |
Foreign References:
| JP2014116104A | 2014-06-26 | |||
| JP2014135437A | 2014-07-24 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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