Industry Patents
Patent: 7736025
Illumination System Comprising Mechanical Dimming Device
(Click image for PDF of full patent)
| Patent Number: |
7736025 |
| Title: |
Illumination System Comprising Mechanical Dimming Device |
| Abstract: |
An illumination system (10), comprising an illumination source (2) and a
mechanical dimming device (4) for dimming the amount of light generated
by the illumination source (2) and emanating from the lighting apparatus,
comprising an array of partially overlapping blades, the array of blades
being mechanically operable to define an optical passageway there through
of variable cross sectional area, wherein each blade comprises at least
one overlapping segment and at least one non-overlapping segment, the
overlapping segments being a color filter and the non-overlapping
segments being a shutter. In a preferred embodiment the color of the
color filter is in the range from yellow to amber to red. This
arrangement is especially useful with a high intensity lamp as the
illumination source, and provides for natural dimming of the light
produced by the illumination source over the range of from about 0 to
100% causing a color change in the projected light that resemble natural
sunset.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hofmann, Van Den Plas |
| Assignee: |
Philips |
| Continuation or Divisional of: |
|
| International Classification: |
F21V 9/00 |
| US Classification: |
362/293 |
| Issue Date: |
06-15-2010 |
| Filing Date: |
04-11-2006 |
| Application : |
11/911817 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7736025 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7736025 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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