LEVEL 2 · LED RESEARCH
28 research screens: LED components, lifetime, spectrum, health, power, control and a provisional component ranking. Research edition in Russian.
Open research · RU →What changed, where and under which conditions? Calculate an example, compare the data and plan a test.
Melanopic EDI is obtained from illuminance and the melanopic DER calculated for the same spectrum. Starting values are an educational example.
Enter a known DER from spectral data. Colour temperature alone cannot reliably establish it.
A calculation for one point. Exposure duration and individual response are outside this calculation.
Research assignments. No completed calculations for these projects are claimed yet.
Multi-objective selection of sources and settings: visual task, spectral quantities, energy and control limits.
Inputs: measured channel spectra, optics, driver and available modes. Verification: spectrometry of the mixture and power measurements.
Calculate light propagation, reflections, daylight and the person’s position. Evaluate many alternatives in a digital room model.
Inputs: geometry, surface properties, photometry and schedule. Verification: selected measurement points, model error and sensitivity.
Model plasma and other sources, thermal behaviour and degradation. A separate programme examines exposure and observed outcomes.
Inputs: physical model and experimental evidence. Verification: reproducibility; human research requires a scientific protocol and appropriate ethical review.
A spacecraft or polar station needs more than the colour of a lamp. Describe the whole day, its activities and rest.
Check operating hours, dimming and available daylight. Then measure the result while preserving useful visibility.
Verify savings using comparable data. Record installation, finance and service costs separately.
Consensus reference levels for healthy adults on daytime schedules: daytime ≥250 lx mEDI, the three hours before bed ≤10, sleep ≤1. These concern light at the eye. The chart does not predict sleep or calculate a therapeutic dose. Brown et al. · PLOS Biology 2022 · DOI
Enter 3–6 non-overlapping intervals within a day. Split intervals that cross midnight. Each EDI refers to eye position and the selected phase. Unrecorded time is shown separately.
Compare two operating schedules over one year. Power must cover the same system boundary. Equivalent full-power hours account for dimming. Savings are before investment and maintenance.
Enter values from a measurement report if available. PstLM and SVM describe different temporal effects. This tool checks record completeness and makes no safety determination.
Request PstLM and SVM, instrument and method, date, supply voltage, dimmer and its settings. Percent flicker and phone video do not replace these metrics.
mEDI can be compared using lux and DER for the same spectrum at each point. Confirm matching geometry, operating mode, daylight and measurement method. Colour temperature cannot replace DER.
First confirm comparable conditions and obtain missing measurements.
These are plans for reproducible checks. Completed experiments and verified results will be published separately.
Hypothesis: movement, diffusion and shadows can improve the experience of a space. Compare settings while controlling spectrum, illuminance, glare and timing.
Task: establish the useful properties of a specific source under defined conditions. Measure spectrum, dimming, heat, non-visible emission and operating life.
Task: measure fields and interference for each power architecture. Wireless and battery operation require assessment under actual operating conditions.
Hypothesis: context and feedback improve scene selection. Assess prediction errors, manual override and comparison with baseline control.
Task: connect lighting for people and photosynthetic organisms with the overall life-support balance. Specify system composition, mass and energy balances, failures and recovery.
An Academy task: coordinate task lighting, sleep, cameras and a biological module in one computational model.
CIE position on lighting quality, exposure timing and the use of CIE S 026 metrology.
Read source ↗Expert guidance for healthy adults with daytime routines; the paper specifies its applicability.
Read source ↗Guide to α-opic quantities, including melanopic EDI and DER.
Read source ↗The MELiSSA closed-loop life-support concept. An external research reference for the space direction.
Read source ↗Examples of lighting research for people and plants in space.
Read source ↗Reference material on electromagnetic fields and exposure assessment.
Read source ↗Modelling and testing methods for lighting, cameras, glare and shadows.
Read source ↗Human-system standard, Revision F of 14 July 2026. Section 8.7 covers lighting.
Read source ↗A report on adjustable lighting intensity and colour research aboard the ISS.
Read source ↗Original author essay of 15 September 2026. The Academy’s overall perspective; original in Russian.
Read source ↗Engineering serves the support of life, human comfort and a manageable relationship with the environment.
A lighting environment can respond to daily rhythm, activity, position and feedback. The concept connects sources, optics, controls and intelligence.
Lighting reform encompasses understanding, daily habits, environmental design and control methods.
A territory is considered through its combined light exposure: streets, transport, housing, workplaces and public spaces.
Taking terrestrial life into space means understanding the conditions it needs. On a spacecraft, lighting must fit sleep, work, visibility, instruments and biological cycles. They become parts of one engineering task.
Core materials are available in Lectures as Academy editions. Automated publication monitoring and research execution are not connected yet.