Cree Gmbh

Wooh Jae Kim

Mark McClear

Robert E Higley

Joshua J Markle

David T Emerson

Gregory S Bibee

Gregory S Blbee

Joshua Markle

A light emission package includes multiple colored solid state emitters each having a different non-white dominant wavelength in the visible range, and at least one lumiphor arranged to receive emissions from at least one other solid state emitter, with each emitter arranged on or adjacent to a common submount. The at least one other emitter and lumiphor may be arranged in combination to emit white light. Each emitter is independently controllable, permitting color and/or color temperature of a lighting device to be varied during operation of the device. At least one white emitter may be combined with red, green, and blue LEDs.

Lighting device

A light emitting device package assembly includes a light emitting device package body, and first, second and third white light emitting devices on the package body, each of the first, second and third white light emitting devices emits light when energized having a chromaticity that falls within a respective one of first, second and third non-overlapping chromaticity regions in a two dimensional chromaticity space. The first, second and third chromaticity regions are spaced apart in the two dimensional chromaticity space by respective regions having at least the size of a seven step MacAdam ellipse. Related solid state luminaires and methods are also disclosed.

Light emitting devices and systems having tunable chromaticity and methods of tuning the chromaticity of light emitting devices and systems

Light emitting devices and systems having tunable chromaticity

Growing community of inventors

Cary, NC, United States of America

Wooh Jae Kim