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Patent Searching and Data


Title:
WAVELENGTH CONVERSION DEVICE AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163741
Kind Code:
A1
Abstract:
A wavelength conversion device according to the present disclosure is provided with: a substrate (13) which has light transmitting properties, and on one surface of which light from a light source (11) that emits light having a specific wavelength within the wavelength range from ultraviolet light to visible light is incident; a phosphor layer (14) which is arranged on the other surface of the substrate (13), said other surface being on the reverse side of the one surface, and which converts the wavelength of the light that has passed through the substrate (13) and is incident on one surface thereof; an exit-side optical fiber (16) which is formed from a resin in an upright manner at a distance from the other surface of the phosphor layer (14), said other surface being on the reverse side of the one surface, and which guides the light that has been wavelength-converted by the phosphor layer (14); and a spacer member (15) which separates one end of the exit-side optical fiber (16) and the other surface of the phosphor layer (14) from each other, while maintaining the end at a position where the wavelength-converted light is incident. The melting point of the spacer member (15) is higher than the melting point of the exit-side optical fiber (16).

Inventors:
YAMANA, Masahito
IIZAWA, Noboru
HAYASHI, Shintaro
Application Number:
JP2019/005998
Publication Date:
August 29, 2019
Filing Date:
February 19, 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:
G02B5/20; F21S2/00; F21V7/22; F21V8/00; F21V9/32; F21V13/02; F21V29/10; F21V29/502
Foreign References:
US20070153541A12007-07-05
JP2006255296A2006-09-28
JP2018022781A2018-02-08
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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