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Light sources that increase object chroma when dimmed

一种线性增加、色域的技术，应用在当变暗时增加物体色度的光源领域

Inactive Publication Date: 2019-12-27
PENN STATE RES FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no physiological reason that dim to warm should be a better or more attractive way of lighting for humans

Method used

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  • Light sources that increase object chroma when dimmed
  • Light sources that increase object chroma when dimmed
  • Light sources that increase object chroma when dimmed

Examples

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Embodiment Construction

[0021] It should be appreciated that the drawings and description of the present invention have been simplified to illustrate elements that are relevant to a clearer understanding of the present invention, while for the sake of clarity, to eliminate Many other elements. Those of ordinary skill in the art can recognize that other elements and / or steps are desirable and / or required in implementing the present invention. However, since these elements and steps are well known in the art, and because they do not facilitate a better understanding of the present invention, a discussion of these elements and steps is not provided herein. The disclosure herein refers to all such changes and modifications of these elements and methods known to those skilled in the art.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods an...

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PUM

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Abstract

A method of increasing the color gamut of a multi-emitter light emitting device when dimming includes the steps of independently driving each emitter in the device, and increasing the lumen output ofat least one emitter while simultaneously decreasing the lumen output of at least one other emitter, such that total color gamut increases while total lumen output of the light emitting device decreases. A light emitting device is also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 466,035, filed March 2, 2017, and U.S. Provisional Patent Application No. 62 / 608,590, filed December 21, 2017, both of which are incorporated by reference in their entirety Incorporated into this article. Background technique [0003] When conventional light sources are dimmed, the color perception of objects illuminated by the light source is softened (eg, darker, less saturated, less vivid, and less lively). This phenomenon of human vision is known as the Hunt Effect, where, at low light levels, objects look substantially less colorful than they do at high light levels. For many applications such as residential lighting, museum lighting, theater lighting, hotel lighting, and any other application where color perception and dimming is an important part of the lighting solution, compensating for the reduced sensitivity to color when the light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02H05B33/08H01L27/32H05B44/00
CPCH05B45/20H05B47/19H05B47/155H01L25/167H05B45/395H05B45/10
Inventor 凯文·豪泽
Owner PENN STATE RES FOUND