The artificial skylight that you won't believe isn't real
Overview
A short look at CoeLux, an artificial skylight that recreates the scattering process that makes the sky look blue, producing a convincing illusion of distant sun and depth.
On Hacker News
HN points to it as a demonstration of artificial daylight, especially for windowless or underground rooms, and to date the technology to 2014.
Topics
Sources
Video by Lux Magazine, played through YouTube.
Data and selection notes
HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.
HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.
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Selection checks
- SaaS & AI candidates: Topic keywords do not match
- Editor-approved picks: Editorial review is required
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