Summary
This paper models how lamp spectra and wall paint reflectance interact to shape the overall spectral radiance field experienced by the eye, particularly input to intrinsically photosensitive retinal ganglion cells (ipRGCs). Practically, it suggests that selecting wall paints that attenuate short-wavelength (blue) light can meaningfully reduce circadian light pollution indoors without changing light sources.
Key Findings
- Wall paints that attenuate the short-wavelength region of the visible spectrum can substantially reduce overall ipRGC activation from indoor lighting.
- The spectral radiance field reaching the eye is a combined product of lamp emission spectra and surface reflectance, meaning both light sources and interior finishes must be considered together in circadian lighting design.
- The study provides a quantitative framework (spectral radiance field modeling) for evaluating indoor light pollution in terms of melanopsin-relevant (ipRGC) stimulation.
Categories
The Science of Light: Analyzes spectral radiance fields indoors to evaluate light pollution's impact on ipRGC activation, with focus on short-wavelength attenuation strategies.
Sleep & Circadian Health: Examines how interior surface spectral reflectance affects melanopsin-driven circadian photoreception, relevant to reducing unwanted circadian stimulation indoors.
Author(s)
S Bará, J Escofet
Publication Year
2018
Number of Citations
8
Related Publications
The Science of Light
- Phototransduction by retinal ganglion cells that set the circadian clock
- Color appearance models
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Melanopsin is required for non-image-forming photic responses in blind mice
Sleep & Circadian Health
- Phototransduction by retinal ganglion cells that set the circadian clock
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- The two‐process model of sleep regulation: a reappraisal
- Melanopsin is required for non-image-forming photic responses in blind mice
- Strange vision: ganglion cells as circadian photoreceptors