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Patent Searching and Data


Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/113862
Kind Code:
A1
Abstract:
Provided is a lighting device capable of illuminating an object from various directions. This lighting device is provided with: a lighting source; and a light guiding part that has permeability with respect to visible light and that guides light emitted from the light source. The light guiding part is provided with: a cylindrical member; a light extraction part for causing the light, which is guided so as to pass through the inside of a wall part of the cylindrical member, to be emitted from the inside of the wall part. The cylindrical member is provided with: a light entering end surface which is provided to either one of the bottom part or the top part of the cylindrical member so as to face the light source, and through which the light enters the inside of the wall part; and a light emitting part which is included in the inner surface, of the cylindrical member, intersecting with the light entering end surface, and through which the light is emitted from the inside of the wall part.

Inventors:
NAKAMURA KOZO (JP)
WENG YUFENG (JP)
Application Number:
PCT/JP2021/042332
Publication Date:
June 02, 2022
Filing Date:
November 17, 2021
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
F21S9/02; F21S2/00; F21Y103/33; F21Y115/10
Foreign References:
JP2011096417A2011-05-12
JP2009070826A2009-04-02
JP3223313U2019-10-03
JPH11232919A1999-08-27
JP2021128227A2021-09-02
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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