Summary
This paper describes the development of an experimental apparatus designed to study the non-visual effects of light, with photometric characterization relevant to circadian lighting research. It highlights evidence that ipRGC sensitivity varies by retinal location, with higher sensitivity in the lower retina, which has implications for how lighting fixtures should be positioned to maximize circadian entrainment.
Key Findings
- ipRGC sensitivity appears to be dependent on retinal location, with higher sensitivity reported in the lower portion of the retina (corresponding to light from above).
- A dedicated test stand was constructed and photometrically characterized to enable controlled investigation of non-visual light effects.
Categories
The Science of Light: Describes the construction of a test stand for investigating non-visual effects of light and its photometric characterization, including ipRGC sensitivity.
Eye Health & Vision: Discusses retinal location-dependent sensitivity of ipRGCs, relevant to understanding how light position affects non-visual responses.
Author(s)
F Barkholdt, K Broszio, S Völker
Publication Year
2019
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