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Method and system for providing illumination and physiological stimuli

A technology of physiological stimulation and control system, applied in the field of lighting system

Inactive Publication Date: 2010-03-24
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Furthermore, conventional systems and methods fail to provide a desired range of physiological stimuli while maintaining a range of specific luminescent stimuli useful for many ego or space lighting applications.

Method used

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  • Method and system for providing illumination and physiological stimuli
  • Method and system for providing illumination and physiological stimuli
  • Method and system for providing illumination and physiological stimuli

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Embodiment Construction

[0025]Unless defined otherwise, 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. In particular, the term "light emitting element" (LEE) is used to define a device which, when activated, for example by applying a potential difference across it or by passing a current through it, emits light in a certain region or Radiation is emitted in a combination of regions such as the visible region, infrared and / or ultraviolet region. Thus, the light-emitting element may have monochromatic, quasi-monochromatic, polychromatic or broadband spectral emission properties. Those skilled in the art will readily understand that examples of light-emitting elements include semiconductor, organic or polymer LEDs, optically pumped phosphor-coated LEDs, optically pumped nanocrystal LEDs, or other similar devices. Furthermore, those skilled in the art will readily understand that the term "l...

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PUM

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Abstract

Disclosed herein are methods and systems for emitting light that can provide a desired light-induced physiological stimulus and a desired luminous stimulus. The light can be controlled to vary the physiological stimulus within a predetermined first range while maintaining the luminous stimulus within a predetermined second range that is useful for a number of self and / or space illumination applications. For example, an apparatus may include a controller for controlling the drive currents supplied to a plurality of light-emitting elements having different spectral characteristics, wherein the combination of currents is controlled such that the mixed light emitted is associated with the desired physiological and luminous stimuli.

Description

technical field [0001] The present invention relates to lighting systems employing light emitting elements, and more particularly, the present invention relates to lighting systems configured to provide lighting as well as stimulate desired light-induced physiological effects. Background technique [0002] Traditionally, lighting systems have only been used for lighting, i.e. have only been employed to provide enough artificial light to be able to visually recognize features of the environment or of the lighting system itself when looking directly at the system . Recent studies have shown that light may also affect specific physiological functions of living organisms and lead to various physiological effects, as described in "Research Matters" by Figueiro, Lighting Design and Application 36(5) , 15-17, 2006, Figueiro et al; "Demonstration of additivity failure in human circadian phototransduction (demonstration of additivity failure in human circadian phototransduction)", N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/06H05B44/00
CPCA61N5/0618A61N2005/0648A61N2005/0652A61N2005/0663A61N2005/0653H05B45/22H05B47/11Y02B20/40H05B45/10H05B45/20
Inventor I·阿什当
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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