Light emitting device for emitting diffuse ultraviolet light
AssigneeSensor Electronic Technology, Inc.
InventorsAlexander Dobrinsky, Michael Shur
Life of this patent
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Abstract
A diffusive layer including a laminate of a plurality of transparent films is provided. At least one of the plurality of transparent films includes a plurality of diffusive elements with a concentration that is less than a percolation threshold. The plurality of diffusive elements are optical elements that diffuse light that is impinging on such element. The plurality of diffusive elements can be diffusively reflective, diffusively transmitting or combination of both. The plurality of diffusive elements can include fibers, grains, domains, and/or the like. The at least one film can also include a powder material for improving the diffusive emission of radiation and a plurality of particles that are fluorescent when exposed to radiation.
Claims20
A device, comprising:
- a set of radiation sources configured to emit radiation;
- and
- a diffusive layer located adjacent to the set of radiation sources, wherein the diffusive layer includes a reflective material, and a plurality of at least partially transmitting regions, wherein the plurality of at least partially transmitting regions are at least 30% transmissive.
A device, comprising:
- a set of radiation sources configured to emit radiation;
- and
- a diffusive layer located adjacent to the set of radiation sources, wherein the diffusive layer includes a reflective material, and a plurality of at least partially transmitting regions, wherein at least one of the plurality of partially transmitting regions is formed of a fluoropolymer composite, and wherein the plurality of at least partially transmitting regions are at least 30% transmissive.
An enclosure, comprising:
- a plurality of radiation sources configured to emit radiation, wherein each radiation source is located above a mirror element;
- a plurality of optical lenses;
- and
- a diffusive layer located on a side of the enclosure opposite of the plurality of radiation sources, wherein the diffusive layer includes a reflective material, and a plurality of at least partially transmitting regions, wherein at least one of the plurality of at least partially transmitting regions is formed of a fluoropolymer composite, and wherein the plurality of at least partially transmitting regions are at least 30% transmissive.
Dependencies are inferred from the claim text.