SPATIAL LUMINANCE
First Claim
1. An apparatus for receiving light from one or more light sources, each comprising a substantially point-like light source, and emitting the light over an extended surface area, comprising:
- a first surface of an optical controller arranged to refract light received from at least one light source;
a second surface of the optical controller arranged to reflect the light received from the first surface of the optical controller, said first surface and said second surface arranged with respect to each other to enable total internal reflection of the light received from said at least one light source; and
a plurality of reflection elements located within the optical controller arranged to alter the path of the light traversing the optical controller so as to direct light out of the optical controller.
1 Assignment
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Accused Products
Abstract
A method and apparatus are disclosed for receiving light from one or more light sources, each of which comprises a substantially point-like light source. The received light is them emitted over an extended surface area including a first surface of an optical controller arranged to refract light received from at least one light source, a second surface of the optical controller arranged to reflect the light received from the first surface of the optical controller, the first surface and the second surface being arranged with respect to each other to enable total internal reflection of the light reflected from the at least one light surface, and a plurality of reflection elements located within the optical controller arranged to alter the path of the light traversing the optical controller so as to direct light out of the optical controller.
28 Citations
26 Claims
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1. An apparatus for receiving light from one or more light sources, each comprising a substantially point-like light source, and emitting the light over an extended surface area, comprising:
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a first surface of an optical controller arranged to refract light received from at least one light source; a second surface of the optical controller arranged to reflect the light received from the first surface of the optical controller, said first surface and said second surface arranged with respect to each other to enable total internal reflection of the light received from said at least one light source; and a plurality of reflection elements located within the optical controller arranged to alter the path of the light traversing the optical controller so as to direct light out of the optical controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for manufacturing an apparatus for receiving light from one or more light sources and emitting the light over a larger surface area, comprising the steps of:
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providing an optical controller comprising; a first surface of the optical controller arranged so as to refract light received from at least one light source; a second surface of the optical controller arranged to reflect the light received from the first surface, said first surface and said second surface arranged with respect to each other to enable total internal reflection of the light received from said at least one light source; and a plurality of reflection elements located within the optical controller arranged to alter the path of the light traversing the optical controller so as to urge it to exit the optical controller; providing at least one light source to emit light towards the optical controller; and providing an outer casting onto which the at least one light source and the optical controller are secured with respect to each other. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for receiving light from one or more light sources and emitting the light over a larger surface area, comprising:
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receiving light from at least one light source at a first surface of an optical controller and refracting the light as it passes into the optical receiver; receiving the light at a second surface of the optical controller and reflecting the light received from the first surface of the optical controller, said first surface and said second surface arranged with respect to each other to enable total internal reflection of the light received from said at least one light source; and altering the path of the light traversing the optical controller so as to urge the light to exit the optical controller, said altering provided by a plurality of reflection elements located within the optical controller.
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Specification