Light emitting panel assemblies
First Claim
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1. An optical assembly comprising:
- a light emitting panel member having opposite sides and at least one input edge for receiving light from at least one light source; and
a pattern of individual optical deformities on or in at least one of the sides for producing a light output distribution from a light emitting surface area of the panel member, the individual optical deformities being varied within the pattern, the pattern including different sets of the optical deformities in respective regions of the light emitting surface,a first set of the optical deformities each having at least one surface that is shaped or oriented to extract light propagating through the panel member in an output ray angle distribution,a second set of the optical deformities each having at least one surface that is shaped or oriented to extract light propagating through the panel member in a different output ray angle distribution than the first set.
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Abstract
An optical assembly comprises light sources and a light emitting panel member having an input edge to which each of the light sources is optically coupled at a different location along the input edge. Different sets of individual optical deformities on or in at least one of the sides of the panel member each have at least one surface that is shaped or oriented to extract light propagating in the same direction through the panel member in different directions for viewing from different angles through one of the sides of the panel member.
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Citations
17 Claims
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1. An optical assembly comprising:
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a light emitting panel member having opposite sides and at least one input edge for receiving light from at least one light source; and a pattern of individual optical deformities on or in at least one of the sides for producing a light output distribution from a light emitting surface area of the panel member, the individual optical deformities being varied within the pattern, the pattern including different sets of the optical deformities in respective regions of the light emitting surface, a first set of the optical deformities each having at least one surface that is shaped or oriented to extract light propagating through the panel member in an output ray angle distribution, a second set of the optical deformities each having at least one surface that is shaped or oriented to extract light propagating through the panel member in a different output ray angle distribution than the first set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An optical assembly comprising:
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a light emitting panel member having opposite sides and at least one input edge for receiving light from at least one light source; and a pattern of individual optical deformities on or in at least one of the sides for producing a light output distribution from a light emitting surface area of the panel member, the individual optical deformities being varied within the pattern, different sets of the optical deformities within the pattern each having at least one surface that is shaped or oriented to extract light propagating through the panel member in respective different directions from multiple regions of the light emitting surface area of the panel member wherein the optical deformities of the different sets within the pattern are varied to obtain a multi-intensity light output distribution. the panel member is viewed from different angles.
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Specification