Solid state lighting device with different illumination parameters at different regions of an emitter array

摘要

Solid state lighting (SSL) devices and methods of manufacturing such devices. One embodiment of an SSL device comprises a support and an emitter array having a plurality of SSL emitters carried by the support. The emitter array has a central region and a peripheral region outward from the central region. Individual SSL emitters in both the central and the peripheral regions have a primary emission direction along which an intensity of light from the SSL emitters is highest, and the primary emission direction of the SSL emitters in the central region is at least substantially the same direction as the primary emission direction of the SSL emitters in the peripheral region. Additionally, a first coverage area ratio of the SSL emitters in the central region is different than a second coverage area ratio of the SSL emitters in the peripheral region.

主权项

1. A method for manufacturing a solid state lighting (SSL) emitter system, comprising:
providing a support having a front surface for carrying the SSLs and a back surface facing away from the front surface; arranging a first set of SSL emitters in a first coverage area ratio at the front surface of the support in a first emission area of an SSL emitter array, wherein a primary emission direction of the first set of SSL emitters is generally perpendicular to the back surface of the support; and arranging a second set of SSL emitters in a second coverage area ratio at the front surface of the support in a second emission area of the SSL emitter array, wherein a primary emission direction of the second set of SSL emitters intersects with the primary emission direction of the first set of SSL emitters, wherein the first coverage area ratio is less than the second coverage area ratio, and wherein the first set of SSL emitters is smaller than the second set of SSL emitters.