LIGHT DISTRIBUTION
First Claim
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1. An illumination device comprising:
- a light source (2),an electro-wetting based optical element (1, 10), arranged in front of the light source to allow refraction of a beam of light emitted from said light source, anddriving means (9, 19) arranged to operate said optical element between at least two predefined states, said states being adapted to result in refracted beams having different light intensity distribution.
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Abstract
An illumination device comprising a light source (2), an electro-wetting based optical element (1, 10), arranged in front of the light source to allow refraction of a beam of light emitted from said light source, and driving means (9) arranged to operate said optical element between at least two predefined states, said states being adapted to result in refracted beams having different light intensity distribution. According to this design, the electrowetting based optical element can be used to dynamically alter the light intensity distribution of the illumination device between a number of predefined states.
26 Citations
12 Claims
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1. An illumination device comprising:
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a light source (2), an electro-wetting based optical element (1, 10), arranged in front of the light source to allow refraction of a beam of light emitted from said light source, and driving means (9, 19) arranged to operate said optical element between at least two predefined states, said states being adapted to result in refracted beams having different light intensity distribution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Use of an electrowetting based optical element as a light distribution-converting device.
Specification