Solid state light emitting devices including adjustable melatonin suppression effects

US9039746B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9039746-B2
Application numberUS-201313763579-A
CountryUS
Kind codeB2
Filing dateFeb 8, 2013
Priority dateFeb 8, 2013
Publication dateMay 26, 2015
Grant dateMay 26, 2015

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Abstract

Official abstract text for this publication.

Solid state light emitting devices include multiple LED components providing adjustable melatonin suppression effects. Multiple LED components may be operated simultaneously according to different operating modes according to which their combined output provides the same or similar chromaticity, but provides melatonin suppressing effects that differ by at least a predetermined threshold amount between the different operating modes. Switching between operating modes may be triggered by user input elements, timers/clocks, or sensors (e.g., photosensors). Chromaticity of combined output of multiple LED components may also be adjusted, together with providing adjustable melatonin suppression effects at each selected combined output chromaticity.

First claim

Opening claim text (preview).

What is claimed is: 1. A light emitting apparatus comprising: a first LED component; and a second LED component; wherein the first LED component and the second LED component are arranged to be operated in a first operating mode in which combined emissions of the first LED component and the second LED component (i) are within four MacAdam ellipses of a target correlated color temperature, and (ii) embody a first melatonin suppression milliwatt per hundred lumens value; wherei…

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What does patent US9039746B2 cover?
Solid state light emitting devices include multiple LED components providing adjustable melatonin suppression effects. Multiple LED components may be operated simultaneously according to different operating modes according to which their combined output provides the same or similar chromaticity, but provides melatonin suppressing effects that differ by at least a predetermined threshold amount …
Who is the assignee on this patent?
Cree Inc
What technology area does this patent fall under?
Primary CPC classification A61N5/0618. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue May 26 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).