Industry Patents
Patent: 7810974
Lighting Device
(Click image for PDF of full patent)
| Patent Number: |
7810974 |
| Title: |
Lighting Device |
| Abstract: |
The invention relates to a lighting device (1) comprising an envelope (2),
a base (3), a solid-state light source (4) and optical means (5) provided
with a light-outcoupling surface, the solid-state light source (4) being
optically coupled to said optical means (5). The use of a spirally wound
optical fiber as optical means (5) and a transparant envelope (2) shaped
as a conventional light bulb provides a lighting device (1) which is a
good look-alike of the conventional incandescent lamp, such as, for
instance, the carbon filament lamp. The long life-time and high
efficiency of LEDs as a solid-state light source (4) will make this
lighting device (1) a very attractive alternative for the conventional
incandescent lamp. The lighting device (1) according to the present
invention has the further advantage that a large gamut of colors can be
chosen and adjusted by using, for instance, red green and blue LEDs in
said lighting device (1). The electronics for driving and controlling the
intensity and color settings can be incorporated in the lighting device
(1).
|
| Country of Issue: |
US |
| First Named Inventor: |
Van Rijswick, Van Kooten |
| Assignee: |
Philips |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 7/04 |
| US Classification: |
362/555 |
| Issue Date: |
10-12-2010 |
| Filing Date: |
09-19-2005 |
| Application : |
11/575761 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7810974 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7810974 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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