PhotoLED Events

In order to collect feedback and to hear the needs of Collaborators and Stakeholders, project PhotoLED arranged several events, including workshops and training. In addition, the results of the project were presented in various different conferences and workshops, including those of International Commission on Illumination (CIE). Please see below for more information on the PhotoLED events.

Past events
  • August 29-30, 2019: Final Project meeting held at DTU Fotonik, Roskilde, Denmark.
    • Aug 28, 2019 (DTU Fotonik, Denmark): Stakeholder training of LED standards and measurement methods
      This training event open for the stakeholders of the project was arranged in combination with the final meeting of the project in the photometric laboratories of DTU Fotonik. In the event, the project partners presented the developed LED standard lamps for luminous intensity and luminous flux, fisheye camera method for determining angular intensity distributions of LED products with an integrating sphere, as well as a method for measuring illuminance of white LED sources with unfiltered radiometers, including PQED. This training event consisted of the training part previously planned for spring 2019 at CMI.
    • June 14-22, 2019 (Washington DC): CIE 2019 29th Quadrennial Session, incl. CIE TC meetings
      Project PhotoLED took part in the CIE Session in Washington DC, USA in June 2019. In the conference, the technical outcome of the project was presented, including the results obtained with the new measurement methods and LED standard lamps developed for luminous intensity and luminous flux. CIE TC2-90 ‘LED reference spectrum for photometer calibration’ held a TC meeting during the event to finalize the technical work of the new spectrum. See page Results for the list of papers presented.
      • January 29, 2019 (IPQ, Portugal): EURAMET TC-PR training course on LED illuminants, reference spectra and standard lamps of PhotoLED
        The project arranged a 3-hour workshop / training for the members of Euramet Technical Committee for Photometry and Radiometry (TC-PR) during the TC-PR Annual Meeting at IPQ, Portugal. In this event, the participants heard the latest news of the project and saw the developed light sources in operation.
        • June 12-15, 2018 (Eindhoven, Netherlands): CIE Division 2 Annual Meeting 2018 + Workshop on LED related topics
          In addition to the CIE D2 meetings, the event consisted of a Workshop on selected LED related topics organised by the NC Netherlands. PhotoLED took part in the Workshop and presented the latest achievements. The following presentations were given:
          • Future Photometry Based on Solid State Lighting Products (T. Poikonen, VTT, Finland)
          • LED-based luminous intensity standard lamps for photometry (T. Gerloff, PTB, Germany)
        • October 27, 2017 (Jeju, Korea): CIE DR2-71 'Towards LED-based standard calibration sources for photometry' meeting
          CIE DR2-71 meeting was held after the conference. In the meeting, it was agreed that a new CIE Division 2 Technical Committee 'LED Reference spectrum for photometer calibration' will be established to produce a new CIE Technical Report. T. Poikonen from VTT will chair the new TC.
          • October 20-28, 2017, CIE Midterm Meeting (Jeju, Korea): Conference & Workshop on LED Reference spectra
            PhotoLED was active in the conference with several talks and papers presented about the new methods, including:
            • S. Jost et al., 'Determination of illuminants representing typical white light emitting diode sources'
            • T. Poikonen et al., 'Development of new calibration spectra and transfer standard lamps for photometry based on white light emitting diodes'
            • A. Kokka et al., 'Fisheye camera system for spatial non-uniformity corrections'
            • T. Donsberg et al., 'New optical aperture area determination method for LED photometry'
            • A. Ferrero et al., 'Proposal for a new V(λ) mismatch index'
          • May 11, 2017 (METAS, Switzerland): 1 st PhotoLED stakeholder workshop on LED photometry
            The first PhotoLED stakeholder workshop was arranged together with EMRP ENG62 MESaIL project to discuss the general concept of the LED-based photometry and to collect input from the stakeholders for project PhotoLED. The workshop was arranged in combination with the 'CIE Tutorial and Practical Workshop on LED Lamp and Luminaire Testing to CIE S025' on 8-11 May. For more information of the CIE tutorial, please visit CIE D2 website: http://div2.cie.co.at/?i_ca_id=1013
            • September 15-16, 2016: Project kick-off meeting held at VTT MIKES, Espoo, Finland.