Title:
LIGHT DIFFUSER, LIGHT FIXTURE, AND METHOD FOR MANUFACTURING LIGHT DIFFUSER
Document Type and Number:
WIPO Patent Application WO/2021/100102
Kind Code:
A1
Abstract:
Provided are: a light diffuser in which the brightness or hue at the light-emitting face of the light diffuser is controlled; a light fixture; and a method for manufacturing such a light diffuser. A light diffuser (100) comprises: a light-receiving face (121) that receives first light (Li); a light scattering part (110) that contains light-scattering particles present in a medium (111), and guides the received first light so as to be scattered by the light-scattering particles to thereby produce scattered light; and a light-emitting face (122) that emits the scattered light. The light-scattering particles are distributed so that the concentration thereof in the light-scattering part continuously or discontinuously increases in a non-linear manner according to distance from the light-receiving end in the direction in which the first light is guided in the light-scattering part.
Inventors:
FUJITA MASASHI (JP)
KAWASE KAZUMASA (JP)
KAWASE KAZUMASA (JP)
Application Number:
PCT/JP2019/045172
Publication Date:
May 27, 2021
Filing Date:
November 19, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21S2/00
Foreign References:
| JP2007273090A | 2007-10-18 | |||
| JP2014170703A | 2014-09-18 | |||
| JPH07161212A | 1995-06-23 | |||
| JP2007273090A | 2007-10-18 |
Other References:
See also references of EP 4063715A4
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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