Solid state lighting devices including light mixtures
AssigneeCree, Inc.
InventorsJohn Roberts, Gerald H. Negley, Antony P. van de Ven, Arpan Chakraborty, Bernd Keller, Ronan P. Le Toquin
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AssigneeCree, Inc.
InventorsJohn Roberts, Gerald H. Negley, Antony P. van de Ven, Arpan Chakraborty, Bernd Keller, Ronan P. Le Toquin
Estimating the term…
A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs) including at least a first LED and a second LED. Chromaticities of the first and second LEDs are selected so that a combined light generated by a mixture of light from the pair of LEDs has about a target chromaticity. The first LED may include a first LED chip that emits light in the blue portion of the visible spectrum and a phosphor that emits red light in response to blue light emitted by the first LED chip. The second LED emits light having a color point that is above the planckian locus of a 1931 CIE Chromaticity diagram, and in particular may have a yellow green, greenish yellow or green hue.
A solid state lighting apparatus comprising:
A solid state lighting apparatus comprising:
An illumination module, comprising:
A solid state lighting apparatus comprising:
Dependencies are inferred from the claim text.