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US 2016/0240749 A1Published application
Formation of uniform phosphor regions for broad-area lighting systems
AssigneeEpistar Corporation
InventorsMichael A. Tischler, Calvin W. Sheen
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Abstract
In accordance with certain embodiments, phosphor arrangements are formed via adhering phosphors to activated regions on a substrate and transferring them to a different substrate.
Claims29
-22. (canceled)
A method of forming an arrangement of phosphors, the method comprising:
- activating one or more regions of a first substrate whereby the one or more regions electrostatically attract phosphor powder;
- introducing phosphor powder to the first substrate, the phosphor powder adhering to the one or more activated regions of the first substrate but not to other exposed regions of the first substrate;
- disposing the first substrate proximate to a second substrate different substrate different from the first substrate;
- transferring the adhered phosphor powder to the second substrate, thereby forming the arrangement of phosphors;
- and
- removing the first substrate.
3 more elements
Dependencies are inferred from the claim text.