Soraa, Inc.

Korrus, Inc.

Ecosense Lighting, Inc.

Philips Lumileds Lighting Company LLC

University of California

Koninklijke Philips Corporation N.v.

Koninklijke Philips Electronics N.v.

Aurelien J F David

Michael Ragan Krames

Troy A Trottier

Rafael Ignacio Aldaz

Claude C A Weisbuch

Steven P DenBaars

Emil Radkov

Michael Joseph Cich

Thomas M Katona

Christophe A Hurni

Mark Philip D'Evelyn

James W Raring

James Stephen Speck

Arpan Chakraborty

Laszlo Takacs

Willem Smitt

Frank Michael Steranka

Clifford T Jue

Rajat Sharma

Frank Tin Chung Shum

Artem Mishin

Jonathan J Wierer

Zinovy Dolgonosov

Henry Kwong-Hin Choy

Wilfred Martis

Abdul Assaad

Kevin Huang

Philip Barton

Jeffery R Parker

Nathan Fredrick Gardner

Daniel F Feezell

Melvin B McLaurin

Michael J Grundmann

Nathan Young

Jeffery Robert Parker

Linda T Romano

Frederic Stephane Diana

Oleg Borisovich Shchekin

Serge J Bierhuizen

Stacia Keller

Sungsoo Yi

Pierre M Petroff

Andrew Felker

Richard J Weiss

Michael R Krames

Jr Jonathan J Wierer

Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.

Circadian-friendly LED light sources

In one embodiment, a method comprising: (a) receiving a set of physiological data associated with at least one health condition of an animal subject; (b) receiving a set of environmental data associated with one or more environment conditions to which the subject is or has been exposed; (c) determining a set of operating parameters for at least one environmental device based at least partially on at least a portion of the set of physiological data and at least a portion of the set of environmental data; and (d) transmitting the set of operating parameters to the at least one environmental device to at least partially control at least one controlled environmental condition to which the subject is exposed to thereby at partially control the at least one health condition.

Controlling physiological conditions by controlling environmental conditions

A display for emitting display light comprising: (a) a light source for emitting a source light; and (b) a filter positioned in the path of said source light, said filter comprising at least short, medium and long filters, wherein said short filter is configured to transmit short-primary light from said source light, said short-primary light comprising a violet portion having wavelengths from 400 to 440 nm and at least a second portion having wavelengths above 440 nm such that said short-primary light is perceptually blue, said short-primary light having a short-primary SPD having a short-primary power between 380-780 nm and a blue power between 440-500 nm, wherein said blue power is less than 5% of said short-primary power.

Low blue light displays

Circadian-friendly LED light source

A light source for emitting emitted light having an SPD comprising: (a) a plurality of light emitters including at least one violet solid-state emitter; (b) at least one phosphor; wherein said light emitters and said at least one phosphor being configured such that: at least 25% of the power within the SPD is in the range 390-420 nm, and the emitted light has a chromaticity which is within a Duv distance of less than 5 points from the Planckian locus.

Bacterial light source with high quality of light

LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm.

LED lamps with improved quality of light

An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.

System and method for selected pump LEDs with multiple phosphors

A gallium and nitrogen containing optical device has a base region and no more than three major planar side regions configured in a triangular arrangement provided from the base region.

Gallium and nitrogen containing triangular or diamond-shaped configuration for optical devices

Growing community of inventors

San Francisco, CA, United States of America

Aurelien J F David