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Patent Searching and Data


Title:
ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/198430
Kind Code:
A1
Abstract:
An illumination device (1) is provided with: a casing (10) that has an opening section (10a); a wavelength conversion member (20) that is disposed inside the casing (10) and that radiates, when laser light is incident thereon, wavelength-converted light that is light at a wavelength different from the wavelength of the laser light; an optical film (30) that covers the opening section (10a) and that has optical properties in which the transmittance with respect to the wavelength-converted light is 80% or more, and the transmittance of the peak wavelength of the laser light with respect to the transmittance of the peak wavelength of the wavelength-converted light is 80% or less; and a light diffusion structure (40) that is provided on at least part of an inner wall of the casing (10) and that diffusely reflects the laser light that has been reflected at least at the optical film (30).

Inventors:
OKUNO, Tatsuya
YAMAE, Kazuyuki
Application Number:
JP2019/011095
Publication Date:
October 17, 2019
Filing Date:
March 18, 2019
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
F21S2/00; F21V9/20; F21V9/32; F21V15/01; F21Y115/30
Attorney, Agent or Firm:
NII, Hiromori et al. (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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