Lighting device

Patent metadata

Field	Value
Publication number	US-11441748-B2
Application number	US-201917288195-A
Country	US
Kind code	B2
Filing date	Nov 6, 2019
Priority date	Nov 20, 2018
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

To improve design of a lighting device. A lighting device includes optically transparent glass plates provided on side faces and placed on an optical path of light emitted from a light source, where some or all of the optically transparent glass plates contain an optically transparent battery adapted to drive the light source; and an optically transparent glass plate that contains a transparent conductive film by being provided on a bottom face, wherein the optically transparent battery is placed in contact with a pair of transparent conductive film layers, which are connected to the light source. The pair of transparent conductive film layers are formed in a pair of parallel linear grooves formed in a surface of the optically transparent glass plate on the bottom face, and a tabular positive tab and negative tab of the optically transparent battery fit in respective ones of the pair of grooves.

First claim

The invention claimed is:

1. A lighting device comprising;
an optically transparent lamp frame that is placed on an optical path of light emitted from a light source; and
an optically transparent battery contained in part or all of the lamp frame, where the battery drives the light source,
wherein the optically transparent battery includes a first glass substrate layer, a negative electrode layer, a first transparent conductive layer disposed between the first glass substrate layer and the negative electrode layer, a second glass substrate layer, a positive electrode layer, a second transparent conductive layer disposed between the second glass substrate layer and the positive electrode layer, and an electrolyte layer disposed between the negative electrode layer and the positive electrode layer, and
wherein the electrolyte layer, the negative electrode layer, and the positive electrode layer form a notch in the optical transparent battery.

2. The lighting device according to claim 1 , further comprising a conductive film-coated lamp frame including a transparent conductive film, wherein
the optically transparent battery is placed in contact with the transparent conductive film, and the transparent conductive film is connected to the light source.

3. The lighting device according to claim 2 , wherein:
the transparent conductive film is formed in a pair of linear grooves formed in parallel in a surface of the conductive film-coated lamp frame; and
the optically transparent battery has a tabular shape and a tabular positive terminal and a tabular negative terminal protrude from a same side of the optically transparent battery and fit in respective ones of the pair of grooves.

4. The lighting device according to claim 3 , wherein there are n optically transparent batteries (n is an integer equal to or larger than 3), which make up side faces of the lighting device; and the conductive film-coated lamp frame is an n-sided polygon, making up a bottom face of the lighting device.

5. The lighting device according to claim 3 , wherein the optically transparent lamp frame is made of glass.

6. The lighting device according to claim 2 , wherein:
the transparent conductive film is formed in a pair of grooves formed in parallel in a surface of the conductive film-coated lamp frame, the pair of grooves drawing n-sided polygons (n is an integer equal to or larger than 3); and
there are n optically transparent batteries, each of which has a tabular shape, and a tabular positive terminal and a tabular negative terminal protrude from a same side of each of the optically transparent batteries, and fit in respective ones of the pair of grooves, forming an n-sided polygonal prism.

7. The lighting device according to claim 6 , wherein of the n optically transparent batteries, all positive terminals are fitted in one of the pair of grooves and all negative terminals are fitted in another one of the pair of grooves, or the positive terminals and the negative terminals alternate grooves to fit in.

8. The lighting device according to claim 7 , wherein there are n optically transparent batteries (n is an integer equal to or larger than 3), which make up side faces of the lighting device; and the conductive film-coated lamp frame is an n-sided polygon, making up a bottom face of the lighting device.

9. The lighting device according to claim 7 , wherein the optically transparent lamp frame is made of glass.

10. The lighting device according to claim 6 , wherein there are n optically transparent batteries (n is an integer equal to or larger than 3), which make up side faces of the lighting device; and the conductive film-coated lamp frame is an n-sided polygon, making up a bottom face of the lighting device.

11. The lighting device according to claim 6 , wherein the optically transparent lamp frame is made of glass.

12. The lighting device according to claim 2 , wherein there are n optically transparent batteries (n is an integer equal to or larger than 3), which make up side faces of the lighting device; and the conductive film-coated lamp frame is an n-sided polygon, making up a bottom face of the lighting device.

13. The lighting device according to claim 12 , wherein the optically transparent lamp frame is made of glass.

14. The lighting device according to claim 2 , wherein the optically transparent lamp frame is made of glass.

15. The lighting device according to claim 1 , wherein the optically transparent lamp frame is made of glass.

Assignees

• Nippon Telegraph & Telephone

Inventors

• Ono Yoko
• Minowa Hironobu
• Sakamoto Shuhei
• Komatsu Takeshi

Classifications

• H01M50/555

  Window-shaped terminals · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• F21W2121/00

  Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00 · CPC title

• F21S6/00

  Lighting devices intended to be free-standing (F21S9/00, F21S10/00, {F21S13/12} take precedence {lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V21/00}) · CPC title