Summary
This paper applies scotobiology — the study of darkness and nocturnal biology — to establish practical limits for outdoor lighting that minimize harm to human health and ecosystems. Key controllable parameters identified include brightness, duration, spatial extent, glare, and spectral composition, demonstrated through a patented luminaire design intended to balance 24/7 human activity with nocturnal environmental protection.
Key Findings
- Key lighting characteristics requiring limitation to minimize ecological and human health disruption are: brightness, duration of illumination, spatial extent of light, glare, and spectral composition (color/wavelength).
- A patented luminaire design is presented as a practical solution bridging continuous human lighting needs with scotobiological protection requirements for the nocturnal environment.
- Humans and other species have evolved specific light thresholds, implying that artificial light at night exceeding these thresholds poses measurable biological risk — though specific quantitative thresholds are not reported in the abstract.
Categories
Sleep & Circadian Health: Addresses how artificial light at night disrupts human health by interfering with natural light-dark cycles and circadian biology.
The Science of Light: Applies scotobiology findings to define spectral, intensity, duration, and glare limits for outdoor luminaire design.
Author(s)
R Dick
Publication Year
2014
Number of Citations
25
Related Publications
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
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