Diffusive light illuminator
First Claim
1. A diffusive illuminator comprising:
- a set of light sources;
a light guiding structure including a plurality of layers, wherein the light guiding structure includes a plurality of layers at least partially formed of a fluoropolymer and at least one layer formed of a transparent fluid, and wherein the light guiding structure guides light emitted by the set of light sources and includes an emission surface through which diffused light exits; and
a plurality of diffusive elements associated with at least one of the plurality of layers, wherein each of the plurality of diffusive elements diffusively reflects and/or transmits the light, and wherein the plurality of diffusive elements are arranged to provide a predetermined uniformity of the diffused light at a predetermined target distance corresponding to a surface to be illuminated.
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Accused Products
Abstract
A diffusive illuminator is provided. The diffusive illuminator includes a set of light sources and a light guiding structure including a plurality of layers. At least some of the layers can be formed of a fluoropolymer and at least one layer can be formed of a transparent fluid. The light guiding structure also includes an emission surface through which diffused light exits. The light guiding structure can further include diffusive elements associated with at least one of the plurality of layers. Each diffusive element can diffuse the light to within forty percent of Lambertian distribution. The diffusive elements can be arranged based on a desired uniformity of the diffused light at a target distance corresponding to a surface to be illuminated. The diffusive illuminator can emit ultraviolet light, and can be implemented as part of a disinfection system.
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Citations
20 Claims
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1. A diffusive illuminator comprising:
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a set of light sources; a light guiding structure including a plurality of layers, wherein the light guiding structure includes a plurality of layers at least partially formed of a fluoropolymer and at least one layer formed of a transparent fluid, and wherein the light guiding structure guides light emitted by the set of light sources and includes an emission surface through which diffused light exits; and a plurality of diffusive elements associated with at least one of the plurality of layers, wherein each of the plurality of diffusive elements diffusively reflects and/or transmits the light, and wherein the plurality of diffusive elements are arranged to provide a predetermined uniformity of the diffused light at a predetermined target distance corresponding to a surface to be illuminated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a diffusive illuminator including; a set of light sources; a light guiding structure including a plurality of layers, wherein the light guiding structure includes a plurality of layers at least partially formed of a fluoropolymer and at least one layer formed of a transparent fluid, and wherein the light guiding structure guides light emitted by the set of light sources and includes an emission surface through which diffused light exits; and a plurality of diffusive elements associated with at least one of the plurality of layers, wherein each of the plurality of diffusive elements diffuses the light, and wherein the plurality of diffusive elements are arranged to provide a predetermined angular distribution of intensity of the diffused light at a predetermined target distance corresponding to a surface to be illuminated; and means for adjusting the plurality of diffusive elements based on at least one attribute of the predetermined angular distribution of intensity. - View Dependent Claims (12, 13, 14, 15)
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16. A disinfection system comprising:
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a diffusive illuminator including; a set of ultraviolet light sources; a light guiding structure including a plurality of layers, wherein the light guiding structure includes a plurality of layers at least partially formed of a fluoropolymer and at least one layer at least partially formed of an ultraviolet transparent fluid, and wherein the light guiding structure guides light emitted by the set of ultraviolet light sources and includes an emission surface through which diffused ultraviolet light exits; and a plurality of diffusive elements associated with at least one of the plurality of layers, wherein each of the plurality of diffusive elements diffuses the ultraviolet light, and wherein the plurality of diffusive elements are arranged to provide a predetermined uniformity of the diffused ultraviolet light at a predetermined target distance corresponding to a surface to be illuminated; and a control system configured to operate the set of ultraviolet light sources to illuminate an item using the diffused ultraviolet light. - View Dependent Claims (17, 18, 19, 20)
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Specification