Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/105420
Kind Code:
A1
Abstract:
In order to improve the design properties of lighting devices, this lighting device (100) is provided with: side-wall light-transmissive glass pieces (2-5) which are arranged on the optical path of light emitted from a light source (6) and which, on part of or on the entirety thereof, include a light-transmissive battery (7) that drives the light source (6); and a bottom-surface light-transmissive glass piece (1) which includes a transparent conductive film. The light-transmissive battery (7) contacts a pair of transparent conductive film layers, and the pair of transparent conductive film layers are connected to the light source (6). Further, the pair of transparent conductive films are formed inside of a pair of straight parallel grooves (9a, 9b), which are formed in the surface of the bottom-surface light-transmissive glass piece (1), and a flat-plate-shape positive electrode tab (8a) and negative electrode tab (8b) of the light-transmissive battery (7) are fitted in the pair of grooves (9a, 9b), respectively.
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Inventors:
ONO YOKO (JP)
MINOWA HIRONOBU (JP)
SAKAMOTO SHUHEI (JP)
KOMATSU TAKESHI (JP)
MINOWA HIRONOBU (JP)
SAKAMOTO SHUHEI (JP)
KOMATSU TAKESHI (JP)
Application Number:
PCT/JP2019/043346
Publication Date:
May 28, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
F21S9/02; F21S9/03; H01M10/04; H01M10/0585; H01M50/209; F21Y115/10
Foreign References:
| JP2005322608A | 2005-11-17 | |||
| US20140003038A1 | 2014-01-02 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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