Industry Patents
Patent: 8319440
Direction Controllable Lighting Unit
(Click image for PDF of full patent)
| Patent Number: |
8319440 |
| Title: |
Direction Controllable Lighting Unit |
| Abstract: |
A direction controllable lighting unit (10) and use thereof in a lighting
system (40) are described. A lighting unit (10) has means (16) for
directing the light emission (22) into different directions. A plurality
of light sources (20a, 20b) are mounted on a common body (14). The light
sources (20a, 20b) are disposed to emit directed light into different
directions. The light is modulated to contain identification codes `A`,
`B`, which are unique. Within the lighting system (40), an optical sensor
(46) is arranged in a region illuminated by the lighting unit (10). The
optical sensor (46) demodulates the received light according to the
identification code. A control unit (44) is connected to the optical
sensor (46) and to the lighting unit (10) to control the direction of the
lighting unit (10) based on information from the optical sensor (46).
|
| Country of Issue: |
US |
| First Named Inventor: |
Schenk, Feri, Yang |
| Assignee: |
Philips Electronics |
| Continuation or Divisional of: |
|
| International Classification: |
H05B 37/02 |
| US Classification: |
315/152 |
| Issue Date: |
11-27-2012 |
| Filing Date: |
06-13-2008 |
| Application : |
12/664083 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
8319440 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
8319440 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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