# Our view of light

Overall vision

Based on Take on light · 2 March 2025

Academy edition

A lighting environment can respond to daily rhythm, activity, position and feedback. The concept connects sources, optics, controls and intelligence.

## Rhythm and space

Design considers time and place: task surface, field of view, surrounding light, daylight and sleep conditions. Local lighting must work with contrast and visual comfort. Dimness is an intentional operating mode.



## An artificial sky

The concept proposes directed and diffuse light, changing angles, cloud patterns and shadows. This is a research direction. Evaluation compares dynamic and baseline conditions while controlling illuminance, spectrum, glare and duration.



## Families of light sources

Plasma, LED and other sources are assessed through measured properties of actual devices. Comparisons include spectrum, control, heat, noise, temporal modulation, maintenance and life. A technology label alone establishes no health advantage.



## Power and fields

Wired power, batteries, a remote source and wireless power are engineering alternatives. Each requires assessment of losses, heat and electromagnetic fields during operation. Wireless transfer uses electromagnetic interaction; removing a cable does not remove the field.



## Observation and prediction

Preferences and voluntary reports add to environmental data. Pulse, facial expression or activity do not uniquely determine emotions or the appropriate lighting. Models must express uncertainty, test predictions and allow an action to be cancelled.



## Verification programme

A measured baseline, defined intervention, observation period and advance criteria are needed. Artificial skies, medical outcomes, new-source advantages and predictive control of personal state each need separate evidence. Prototypes are assessed through actual operation.



[S01 · CIE PS 001:2024](https://cie.co.at/publications/cie-position-statement-integrative-lighting-recommending-proper-light-proper-time-3rd)

[S03 · CIE S 026:2018 · α-opic Toolbox](https://files.cie.co.at/CIE%20S%20026%20alpha-opic%20Toolbox%20User%20Guide.pdf)

[S05 · NASA · Lighting for people and plants](https://www.nasa.gov/missions/station/nasa-research-boosts-led-lamps-for-home-and-garden/)

[S06 · WHO · Electromagnetic fields](https://www.who.int/news-room/questions-and-answers/item/radiation-electromagnetic-fields)

Light Academy · 1.5.0 · 2026-09-17