Metrology for Temporal Light Modulation 20NRM01
Metrology for Temporal Light Modulation
A Joint Research Project within the European Metrology Programme for Innovation and Research
Metrology for Temporal Light Modulation 20NRM01
A Joint Research Project within the European Metrology Programme for Innovation and Research
LED-based lighting contributes to energy saving and the reduction of the environmental impact of lighting. However, LED lamps can show fluctuations in the light output known as temporal light modulation (TLM) which could, above certain limits and under certain conditions, impact the health, well-being and safety of people. The new EU Ecodesign 2019/2020 ‘Single Lighting Regulation’ sets limitations on TLM.
The overall aim of this project is to create the metrology infrastructure for the measurement of TLM in LED lighting and the visual effects induced by TLM, known as temporal light artefacts (TLAs). This project will develop and validate measurement methods for quantitative measurement of TLAs, such as flicker and the stroboscopic effect, and it will advance the development of a metric for the phantom array effect.
The project results will underpin the development of standardisation on TLM and will provide the lighting industry, instrument manufacturers and market surveillance authorities with undisputable results of their TLM measurements.
The MetTLM project has been finalised in August 2024.
11 October 2024
Publishable summary for the MetTLM project status August 2024 available on the website..
12 March 2024
Register for the Training session on the measurement of temporal light modulation (TLM)
Date: 18 April 2024
Location: Physikalisch-Techische Bundesanstalt (PTB) Braunschweig, Bundessallee 100, 38116 Braunschweig, Germany
To register, please see details on this page.
6 March 2024
Register now for the Online webinar on measurement of lighting with temporal light modulation and ecodesign
Date: 12 April 2024
Time: 10:00 - 11:30 h
To receive a link to attend, please register on the website of LightingEurope: 'Measurement of lighting with temporal light modulation and EcoDesign' - LightingEurope
1 February 2024
Save the date: 12 April 2024 (time to be announced)
Online webinar on measurement of lighting with temporal light modulation and ecodesign
LightingEurope and the MetTLM consortium invite you to our upcoming joint webinar, where we will delve into the measurement and characterisation of Temporal Light Modulation, related perception artefacts and its relation to the upcoming revision of ecodesign lighting regulations.
This event is tailored to professionals involved in lighting industry, lighting regulation and market surveillance, and others who are committed to ensuring the quality of lighting technologies and ensuring the health and comfort of lighting users. Subscribe to our mailinglist for updates on how to attend.
18-20 September 2023
23-25 June 2023
13-14 June 2023
27-month meeting of the project consortium.
24 February 2023
Publishable summary and project results updated on the website.
9-10 November 2022
18-month meeting of the project consortium.
15 October 2022
20 April 2022
Publishable summary and project results updated on the website.
1-2 February 2022
9-month meeting of the project consortium.
28 September 2021
CIE 2021 Midterm Meeting & Conference has a session devoted to temporal light modulation, with two presentations from the project.
25 June 2021
Website for MetTLM goes online.
17 May 2021
Kick-off meeting for the Joint Research Project.
