20240032167. DEVICE, METHOD AND SYSTEM FOR BIOLOGICALLY BALANCED LIGHTING simplified abstract (Queensland University of Technology)

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DEVICE, METHOD AND SYSTEM FOR BIOLOGICALLY BALANCED LIGHTING

Organization Name

Queensland University of Technology

Inventor(s)

Andrew J. Zele of Queensland (AU)

Beatrix Feigl of Queensland (AU)

Drew D. Carter of Queensland (AU)

DEVICE, METHOD AND SYSTEM FOR BIOLOGICALLY BALANCED LIGHTING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240032167 titled 'DEVICE, METHOD AND SYSTEM FOR BIOLOGICALLY BALANCED LIGHTING

Simplified Explanation

The abstract describes a lighting device that can adjust the correlated color temperature (CCT) of emitted light. The device includes one or more light emitters and a controller that can independently control each emitter. Each emitter can provide specific spectral components of the emitted light, which corresponds to the intended CCT of the light. The emitted light also includes photoreceptor-to-photopic luminance activation ratios for each ocular photoreceptor class. These ratios include melanopsin (i), rhodopsin (r), long-wavelength sensitive opsin (l), middle-wavelength sensitive opsin (m), and short-wavelength sensitive opsin (s) to photopic-luminance activation ratios. Each of these ratios falls within a defined range of the activation ratio of a blackbody radiator with the intended CCT. The emitted light can have variable excitation ratios for the five photoreceptors, resulting in a biological response similar to that of a different blackbody radiator, which may be invisible or difficult to perceive.

  • Lighting device with adjustable correlated color temperature (CCT)
  • One or more light emitters and a controller for independent control
  • Emitters provide specific spectral components of the emitted light
  • Photoreceptor-to-photopic luminance activation ratios for each ocular photoreceptor class
  • Ratios include melanopsin (i), rhodopsin (r), long-wavelength sensitive opsin (l), middle-wavelength sensitive opsin (m), and short-wavelength sensitive opsin (s) to photopic-luminance activation ratios
  • Ratios fall within a defined range of a blackbody radiator's activation ratio with the intended CCT
  • Variable excitation ratios for the five photoreceptors prompt a biological response similar to a different blackbody radiator, which may be invisible or difficult to perceive

Potential Applications

  • Adjustable lighting for different environments (e.g., homes, offices, hospitals)
  • Lighting for circadian rhythm regulation in healthcare settings
  • Lighting for visual comfort and productivity enhancement in workspaces
  • Lighting for creating specific atmospheres in restaurants, hotels, and entertainment venues

Problems Solved

  • Inability to adjust the color temperature of lighting devices
  • Lack of control over the photoreceptor-to-photopic luminance activation ratios in emitted light
  • Limited options for creating lighting environments that match the response of different blackbody radiators

Benefits

  • Improved control over the color temperature of emitted light
  • Ability to adjust lighting to match the response of different blackbody radiators
  • Potential for enhancing circadian rhythm regulation and visual comfort
  • Flexibility in creating desired lighting atmospheres in various settings


Original Abstract Submitted

a lighting device providing emitted light with an adjustable correlated color temperature (cct) is described. the lighting device comprises one or more light emitters and a controller configured to independently control each of the one or more light emitters. each respective light emitter is configured to provide one or more spectral components of the emitted light, wherein the emitted light comprises a respective photoreceptor-to-photopic luminance activation ratio for each ocular photoreceptor class corresponding to an intended cct of the emitted light. the respective photoreceptor-to-photopic luminance activation ratios comprise each of (a) a melanopsin (i)-to-photopic-luminance activation ratio; (b) a rhodopsin (r)-to-photopic-luminance activation ratio; (c) a long-wavelength sensitive opsin (l)-to-photopic-luminance activation ratio; (d) a middle-wavelength sensitive opsin (m)-to-photopic-luminance activation ratio; and (e) a short-wavelength sensitive opsin (s)-to-photopic-luminance activation ratio. each of (a); (b); (c); (d); and (e) are within a defined range of a respective activation ratio of a blackbody radiator with the intended cct. the emitted light may have variable excitation ratios for the five photoreceptors prompting a biological response matching that of a different blackbody radiator with changes that are invisible to the eye or difficult to perceive.

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