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US 8,940,561 B2Granted
Systems and methods for application of optical materials to optical elements
AssigneeCree, Inc.
InventorsMatthew Donofrio, Nathaniel O. Cannon
Life of this patent
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Abstract
Methods are disclosed including heating an optical element. An optical material is applied to the heated optical element to provide a conformal layer that is cured via the thermal energy in the heated optical element.
Claims44
A method, comprising:
- heating an optical element that includes at least one non-planar surface;
- and
- after heating the optical element, applying an optical material to at least one non-planar surface on the heated optical element,
- wherein heating the optical element comprises heating a plurality of LED chips arranged on a common surface.
1 more element
A method, comprising:
- heating an optical element that includes at least one non-planar surface;
- and
- after heating the optical element, applying an optical material to at least one non-planar surface on the heated optical,
- wherein the optical element comprises an LED wafer, the method further comprising singulating the LED wafer into a plurality of LED chips after applying the optical material on the heated LED wafer.
1 more element
A method, comprising:
- heating an optical element that includes at least one non-planar surface;
- and
- after heating the optical element, applying an optical material to at least one non-planar surface on the heated optical element, wherein the optical element comprises an LED wafer, the method further comprising
- forming a plurality of sacrificial patterns on a surface of the LED wafer, wherein applying the optical material onto the heated LED structure comprises spraying an atomized luminescent solution onto the sacrificial patterns and onto exposed surfaces of the LED wafer between the sacrificial patterns.
1 more element
A method of forming a device for interacting with emitted light, the method comprising:
- heating an optical element;
- applying a first conformal layer of optical material to the heated optical element;
- testing a light emission characteristic of the optical element;
- and
- in response to the light emission characteristic of the optical element not being acceptable, applying a second conformal layer of optical material on the optical element.
2 more elements
A method, comprising:
- curing an optical material on a light transmissive optical element during application of the optical material to the light transmissive optical element,
- wherein curing the optical material comprises heating the light transmissive optical element before application of the optical material to the light transmissive optical element.
Dependencies are inferred from the claim text.