Apparatus for controlling the re-distribution of light emitted from a light-emitting diode
AssigneeKorry Electronics Co.
InventorsJohn R. Green, Stephen H. Humphrey, Timothy R. Robinson
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Abstract
A system for re-distributing light emitted from a light source using an optical element is described. The optical element is manufactured using a bulk matrix material, and diffusing particles and/or scattering particles are embedded within the bulk material. The optical element is coupled to the light source to capture emitted light and redistribute the light in a desired angular distribution pattern depending on the ratio of total weight of diffusing particles to total weight of scattering particles.
Claims26
A system, comprising:
- a source configured to emit electromagnetic radiation having a first angular distribution pattern;
- an optical element coupled to the source, wherein the optical element is formed from a bulk material, and the bulk material is embedded with a first type of particle, and further wherein the optical element has a shape that captures the first angular distribution pattern and emits a second angular distribution pattern.
A system, comprising:
- a light-emitting element;
- an optical element coupled to the light emitting element, wherein the optical element is formed from a bulk material, the bulk material is embedded with a first type of particle, and further wherein the optical element captures the light emitted by the light emitting element and re-emits the light in a quasi-isotropic distribution pattern.
A method of simulating a light emission distribution of an incandescent light bulb, comprising:
- generating light with a light-emitting diode (LED), wherein the LED only emits light in a forward direction;
- capturing the generated light with an optical element, wherein the optical element is embedded with a first type of particle;
- re-emitting at least some of the captured light in a distribution pattern, wherein the distribution pattern includes emission in a backward direction.
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Dependencies are inferred from the claim text.