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Conference Papers
  • Tetri E. 2011. Inefficient lamps will be phased out from the market - What are the alternatives. Lighting Engineering 2011, 6.-7.10.2011, Nova Gorica, Slovenia, Lighting Engineering Society of Slovenia. 8 p.
  • Viitanen, J., Puolakka, M., Halonen, L., Adequacy of photovoltaic energy in office environment. CISBAT 11 conference proceedings, Lausanne, Switzerland, 9/2011.
  • Tetri. E., Paakkinen M., Halonen L. 2011. LED Module Design and Testing. , 27th Session of CIE, South –Africa. Proceedings, Vol. 1, part 2, pp. 945-950.
  • L. Tähkämö, M. Puolakka, L. Halonen, G. Zissis. Life Cycle Assessments of Light Emitting Diodes. The Fourth Asia-Pacific Light Sources Workshop 2011 April 13-14, 2011, Taiwan.
  • Puolakka M., Halonen L. CIE new system for mesopic photometry. Proc of CIE Lighting Quality and Energy-Efficiency, CIE x035:2010, p. 457-462.
  • Ylinen A., Puolakka M., Halonen L. Impact of mesopic design on outdoor lighting energy. Proc of CIE Lighting Quality and Energy-Efficiency, CIE x035:2010, p. 475-481
  • Halonen L. Tetri E. 2010. Guidebook on energy efficient electric lighting for buildings. Proceedings of CIE 2010 Lighting Quality and Energy Efficiency, pp. 188-196.
  • Islam, Mohammad, Shahidul; Bhusal, Pramod; Tetri Eino; Halonen Liisa, Benefits of usage of energy efficient lamps in developing countries: Case study Bangladesh. CIE 2010 - Lighting Quality and Energy Efficincy, March 2010 Vienna, Austria. 385 - 395.
  • Bhusal, Pramod; Bista, Diwakar; Puolakka, Marjukka; Halonen, Liisa, Fuel based lighting in developing countries and their replacement with LEDs -case study from Nepal, CIE 2010 - Lighting Quality and Energy Efficiency, 14-17 March 2010, Vienna, Austria. 500-504.
  • Tetri Eino; Raunio, Johannes; Halonen Liisa Residential energy-efficient lighting. SB10 – Sustainable Community - buildingSMART 22.-24.9.2010 Dipoli, Espoo, pp. 233 - 239.
  • Juntunen, Eveliina1; Keränen, Antti1; Paakkinen, Martt2i; Vuorinen, Vesa2; Tetri, Eino2; Halonen, Liisa2; Heikkinen, Veli1. 1 VTT Technical Research Centre of Finland, 2 Aalto University School of Science and Technology. Injection Moulded Lens Array for High Power LED Modules. ESTC 2010 - Electronics System Integration Technology Conferences September 2010 Berlin, Germany. 6 p.
  • Tetri, Eino; Halonen, Liisa, Guidebook on energy efficient electric lighting for buildings, 11th European Lighting Conference, Lux Europa, Istanbul, Turkey, 9.-11.9.2009. pp. 761-768.
  • Amogpai, Ater; Tetri, Eino; Halonen, Liisa, New lighting technologies in developing countries - case Sudan, 11th European Lighting Conference, Lux Europa, Istanbul, Turkey, 9.-11.9.2009. pp. 235-242.
  • Paakkinen, Martti; Tetri, Eino; Halonen, Liisa, Photometric and electrical measurements of LED light engines, CIE Light and Lighting Conference with Special Emphasis on LEDs and Solid State Lighting, Budapest, Hungary, 27.-29.5.2009.
  • Halonen, Liisa Tetri, Eino, LED Lighting applications and energy usage in developing countries, LED lighting today: tales or facts ?, Naples, Italy, 13.3.2009.
  • Halonen, Liisa; Tetri, Eino, Lighting efficiency and LED applications in industrialized and developing country, The 5th International Conference ILUMINAT 2009, Cluj-Napoca, Romania, 20.2.2009, pp. L8-1 - L8-5.
  • Rautkylä, Emilia; Teikari, Petteri; Puolakka, Marjukka; Halonen, Liisa, Evaluation of today's research methods for assessing light-induced alertness, EXPERIENCING LIGHT 2009 International Conference on the Effects of Light on Wellbeing, 26.-27.10.2009, Eindhoven, Holland. pp. 162 - 173.
  • Tetri, Eino, LEDs for Lighting, Photonics Valencia 2008, Valencia, Spain 26.-27.11.2008, pp. 39-44.
  • Halonen, Liisa, Efficient Lighting for the 21st Century, Balkan Light 2008, Ljubljana, Slovenia, Lighting engineering society of Slovenia, 7.-10.10.2008, pp. 39-44.
  • Tetri, Eino; Pohl, Wilfried, Concepts and techniques for energy efficient lighting solutions, IEECB 2008 - Improving Energy Efficiency in Commerical Buildings Conference, Frankfurt, Germany, The European Commission DG JRC & the Building Performance Congress, 2008, p.1-11.
  • Eloholma, Marjukka; Halonen, Liisa, Mesopic Vision and Photometry, Balkan Light 2008, Ljubljana, Slovenia, 8-9 October, 2008 , Lighting Engineering Society of Slovenia, pp. 23-27.
  • Tetri, Eino, Usability of LEDs for general lighting, International Workshop on VISUAL QUALITY AND ENERGY EFFICIENCY IN INDOOR LIGHTING: TODAY FOR TOMORROW, Rome, Italy, 31.3.2008, ENEA; Sapienza Universita di Roma, p. 1-8.
  • Halonen, Liisa, Lighting energy usage and lighting efficiency in industrialized and developing countries – IEA ECBCS Annex 45., International Workshop on VISUAL QUALITY AND ENERGY EFFICIENCY IN INDOOR LIGHTING: TODAY FOR TOMORROW, Rome, Italy, 31.3.2008, ENEA; Sapienza Universita di Roma, p. 1-7.
  • Tetri, E., Halonen L. Future trends of energy efficient lighting. Proceedings of the 26th session of the CIE, Beijing, China, 4-11 July 2007. pp. 45-48.
  • Ekrias, Aleksanteri; Ylinen, Anne; Eloholma, Marjukka; Halonen, Liisa, Effects of pavement lightness and colour on road lighting performance, CIE Expert Symposium on road surface photometric characteristics, Torino Italy 9-10 July, 2008.
  • Gligor, Viorel; Teikari, Petteri; Eloholma, Marjukka; Halonen; Liisa, The effects of melatonin on visual performance; study case for equal melatonin suppression under different spectra, Light, Performance and Quality of Life, Lighting Engineering Society of Slovenia, Eindhoven, 8 November, 2007, pp. 34-39.
  • Ekrias A, Guo L., Eloholma M., Halonen L. Intelligent road lighting and effects of weather conditions on road luminances. Proceedings of the 26th session of the CIE, Beijing, China, 4-11 July 2007. pp. 108-109.
  • Orreveteläinen P., Eloholma M., Halonen L. Mesopic spectral sensitivity and related CIE standardisation work. Proceedings of the 26th session of the CIE, Beijing, China, 4-11 July 2007. pp. 34-37.
  • Halonen L., Tetri E. Lighting - Energy Consuption and Energy Efficiency. Proceedings of the 4th International conference Iluminat, Cluj-Napoca, Romania, 31 May-1 June 2007.
  • Gligor V., Tetri E., Halonen L. User Preferences for Solid State Lighting. Proceedings of the 11th International Symposium on the Science and Technology of Lighting Sources, Shanghai, China, 20-24 May 2007. pp. 157-158.
  • Tetri E., Halonen L. Energy Performance and User Preferences for LED Lighting for Offices and Residential Buildings. Proceedings of DG-JRC Workshop "Status, Prospects and Strategies for LEDs in General Lighting", Ispra, Italy, 3-4 May 2007. p. 38.
  • Gligor V., Viikari M., Eloholma M., Halonen L., Partonen T. Visual performance and melatonin concentration during exposure to mesopic light levels of different wavelengths. Proceedings of the 2nd CIE Expert Symposium on Lighting and Health, Ontario, Canada, 7-8 September 2006. pp. 131-134.
  • Halonen L., Tetri E. 2006. IEA ECBCS Annex 45 - Energy efficient electric lighting for buildings. Lighting of work places: proceedings. Fifteenth International Symposium Lighting Engineering 2006, Bled, Slovenia. Lighting Engineering Society of Slovenia. pp. 5-10.
  • Bhusal P., Tetri E., Halonen L. Quality and Efficiency of office lighting. Proceedings of the 4th European Conference on Energy Performance and Indoor Climate in Building and the 27th International Conference AIVC, Lyon, France, 20-22 November 2006, pp. 535-540.
  • Bhusal P., Tetri E., Halonen L. Energy Efficient and Photometric Aspects in Renovation of Auditorium. Proceedings of the 4th European Conference on Energy Performance and Indoor Climate in Building and the 27th International Conference AIVC, Lyon, France, 20-22 November 2006, pp. 867-872.
  • Pinho, P.; Tetri, E.; Halonen, L., Synergies of controller-based LED drivers and quality solid-state lighting. 2nd Conference on Ph.D. Research in MicroElectronics and Electronics (PRIME 2006), Otranto (Lecce), Italy, June 12-15, 2006, pp. 405-408.
  • Eloholma, M., Ketomäki, J., Orreveteläinen, P., Halonen, L., Contrast threshold and reaction time experiments in developing a performance-based mesopic photometry system. Proceedings of the CIE Symposium '05 Vision and Lighting in Mesopic conditions, León, Spain, 21.5.2005.
  • Halonen, L., Eloholma, M., Development of mesopic photometry based on new findings on visual performance. Proceedings of the CIE Symposium '05 Vision and Lighting in Mesopic conditions, León, Spain, 21.5.2005.
  • Moisio, O., Pajula, M., Pinho, P., Tetri, E., Halonen, L., Sepponen, R., Use of junction temperature in control of CCT in LED luminaire. CIE Midterm Meeting & León 2005 International Lighting Congress, León, Spain, 18.-20.5.2005.
  • Eloholma M., Ketomäki J., Halonen L ., New model for mesopic photometry applicable for night-time driving conditions, In Proc International Symposium of Automotive Lighting ISAL2005, Darmstadt, Germany, pp. 515-524.
  • Halonen L., Tetri E. IEA Annex 45 - Energy Efficient Electric Lighting for Buildings. Lux Europa 2005 Lighting for humans, Berlin, Germany, 19.9.-21.9.2005. pp. 353-354.
  • Pinho P., Tetri E., Halonen L. Design and Performance Assessments of Solid State Light Sources for Plant Growth. Lux Europa 2005 Lighting for humans, Berlin, Germany, 19.9.-21.9.2005, Proceedings of 10th European Lighting Conference Lux Europa 2005, pp. 297-301.
  • Bhusal P., Tetri E., Halonen L. Accuracy of the lighting energy calculation method. The 6 th international conference on energy efficient lighting, Shanghai, China, May 9-11, 2005.
  • Tetri E. Measurement Methods of T5-fluorescent lamps. Bucharest 2004 International Lighting Symposium Proceedings. International Lighting Symposium Quality Solutions for an Efficient Lighting. Bukarest, Romania, 30.9.-2.10.2004. pp. 86-91
  • Halonen L. IEA Annex 45; Energy efficient electric lighting for buildings. Daylighting; Research and Design in Architecture. Torino, 21.9.2004.
  • Moisio O., Pinho P., Tetri E. & Halonen L. Controlling Colour Temperature of LED-luminaire. 10th International Symposium on the Science and Technology of Light Sources. Toulouse, France, 18.-22.7.2004. pp. 375-376.
  • Tetri E. Lamp Life of T5 Fluorescent Lamps in Dimming Use. 10th International Symposium on the Science and Technology of Light Sources. Toulouse, France, 18.-22.7.2004. pp. 163-164.
  • Pinho P. Photobiological Aspects of Crop Plants Grown Under Ligthing Emitting Diodes. CIE Expert Symposium on LED Light Sources. Tokyo, Japan, 07-08.06.2004. pp. 71-74.
  • Ketomäki J., Eloholma M., Orreveteläinen P., Halonen L. Visibility of coloured targets at low light levels. PAL 2003, September 23-24, 2003 Darmstadt Germany. pp. 507-515.
  • Halonen L., Eloholma M. Promoting studies, research and continuing co-operation in the field of traffic lighting and mesopic vision between Europe and China. PAL 2003, September 23-24, 2003 Darmstadt Germany. pp. 356-360.
  • Eloholma, M. &Halonen, L. New approach for the development of mesopic dimensioning scales. CIE Expert Symposium 2002; Temporal and Spatial Aspects of Light and Colour Perception and Measurement, Veszprem, Hungary, August 22-23, 2002. Hungary 2003, pp. 61-64.
  • Eloholma M., Ketomäki J., Orreveteläinen P. & Halonen L. Mesopic luminous environment in driving. 25th Session of the CIE, San Diego USA, June 29-July 2, 2003. 2003, CIE, pp. 62-65.
  • Orreveteläinen, P., Ketomäki, J., Eloholma, M. & Halonen, L. Flashing signals in peripheral vision. 25th Session of the CIE, San Diego, USA, 25.6.-2.7.2003. 2003, CIE Central Bureau.
  • Orreveteläinen P., Ketomäki J., Eloholma M. & Halonen L. Effective Intensity of Flashing Signals in Peripheral Vision. 25th Session of the CIE, proceedings. 25th Session of the CIE, San Diego, USA, 25.6.-2.7.2003. pp. 70-73.
  • Eloholma M., Ketomäki J., Orreveteläinen P., Halonen L. Mesopic visibility conditions and luminous environment in driving. 25th Session of the CIE, June 25-July 2, 2003 San Diego USA. pp. 62-65.
  • Orreveteläinen P., Ketomäki J., Eloholma M., Halonen L. The Effect of Light Spectrum on Peripheral Visibility at Mesopic Levels. CORM 2003, Light in the 21st Century. June 18-20, 2003, Stanford University, California USA.
  • Gligor V., Hyvärinen M., Halonen L. & Lehtovaara J. Known and less known aspects of lighting in office work. International Conference ILUMINAT 2003. Technical University of Cluj Napoca, Romania. pp. 1-7.
  • Eloholma M., Ketomäki J., Orreveteläinen P., Halonen L. Pedestrian Visibility in Road Lighting Conditions. Iluminat 2003, May 8-9, 2003 Cluj-Napoca Romania. pp. 1-6.
  • Pakanen, J., Sundquist, T. Automation-assisted fault detection of an air-handling unit; Implementing the method in a real building, Energy and Buildings. Vol. 35 (2003) No: 2, 193 - 202.
  • Tetri E. Light years. IEEE Industry applications magazine. Vol. 9. No. 1. 2003. p. 12-17.
  • Gligor V., Lehtovaara J. & Halonen L. Innovative Office Building - Lighting, Productivity and Energy. The 3rd European Conference on Energy Performance & Indoor Climate in Buildings. October 23-26, 2002 Lyon France. pp. 679-684.
  • Eloholma M., Halonen L. New Approach for the Development of Mesopic Dimensioning Scales. CIE Expert Symposium 2002 Temporal and Spatial Aspects of Light and Colour Perception and Measurement. August 22-23, 2002 Veszprém Hungary.
  • Tetri, E. & Gligor, V. Dimming according to daylight - effect on lamp life. Right Light 5. Proceedings of the 5th European Conference on Energy-Efficient Lighting. Nice, France 29-31 May 2002. p. 421-424.
  • Tetri E. Effect of cathode heating on lamp life in dimming use. IEEE Industry Applications Society, 36th Annual Meeting, Chicago, USA, 30.9.-4.10.2001. 6 p.
  • Tetri E. Effect of dimming on lamp life - Results of a lamp life test. Iluminat 2001, Cluj-Napoca, Romania 28.6.-30.6.2001. 6 p.
  • Halonen L., Eloholma M., Hyvärinen M., Ayama M. & Kanaya S. The Whiteness Perception under several Fluorescent Lamps. CIE Istanbul, Turkey 2001 Lighting Congress. Istanbul September 12-14, 2001. pp. 402-404
  • Kanaya S., Ayama M., Halonen L., Eloholma M. & Mukai K. A Comparative Study of the Whiteness Perception in Japan and Finland.  CIE Istanbul, Turkey 2001 Lighting Congress. Istanbul September 12-14, 2001. pp. 427-432
  • Ayama M., Eloholma M., Hyvärinen M., Eda T., Kon D., Mukai K., Kanaya S. & Halonen L. Whiteness Perception in Japanese and Finnish under Cool and Warm Fluorescent Lamps.  AIC Color 2001. Rochester USA June 24-29, 2001. Proceedings of SPIE Vol. 4421. pp. 279-282
  • Eloholma, M. & Halonen, L. Vision at Mesopic Light Levels - The Effects of Light Spectrum. Proceedings of CIE-UK Colour and Visual Scales 2000
  • Eloholma, M., Halonen, L. & Ketomäki, J. The effects of light spectrum on visual performance at mesopic light levels. CIE Symposium '99 75 years of CIE photometry. Budapest, Hungary, 30.9.-2.10.1999. pp. 31-35.
  • Ketomäki, J. The Effect of Light Spectrum on the Visual Field at Mesopic Light Levels. Lux junior '99. Dörnfeld, Germany, September 24-26, 1999. pp. 136-143.
  • Halonen, L. Age related changes in lighting needs - effects of light spectrum and luminance level. 24th Session of the CIE. Varsova, Poland, June 24-30, 1999. pp. 81-82.
  • Halonen, L. & Eloholma, M. Spectral sensitivity at mesopic light levels. PAL 99 Progress in Automobile Lighting. Darmstadt, Germany. September 28-29, 1999. pp. 331-339
  • Eloholma, M. Vision in mesopic lighting levels - The effects of light spectrum and luminance level. 24th Session of the CIE. Varsova, Poland. June 24-30, 1999. pp. 82-86.
  • Tetri, E. Effect of dimming on lamp life of fluorescent lamps. 24th Session of the CIE. Varsova, Poland. June 24-30, 1999. pp. 336-340
  • Orreveteläinen, P., Soriano, J.C., Molina, M., Pantoja, A., Baldovi, R., Wallard, J-P., Adorno, G. & Romero, F. Development of a Standard Measurement Method for Characterizating Luminous Distribution and Reach of Sea Signals. 24th Session of the CIE. Varsova, Poland. June 24-30, 1999. pp. 182-186
  • Eloholma, M., Halonen, L. & Setälä, K. The Effects of Light Spectrum on Visual Acuity in Mesopic Lighting Levels. Fourth International Lighting Research Symposium on Vision at Low Light Levels. Orlando, Florida. May 19-21, 1998.
  • Nazzal, A. Light Quality and Energy Saving by a Combined Use of Daylight and Artificial Lighting in Public Buildings: A Case Study. Daylighting '98, An international Conference on Daylighting Technologies for Energy Efficiency in Buildings. Canada, Ottawa. May 10-13, 1998. pp 307-314.
  • Nazzal, A. An Evaluation Method for Indoor Discomfort Glare of Daylight Origin. EuroSun '98, The second ISES-Europe Solar Congress. Portoroz, Slovenija. September 14-17, 1998.
  • Nazzal, A. Evaluating and Controlling Discomfort Glare of Daylight Origin in an Office Environment. EPIC '98, 2nd European Conference on Energy Performance and Indoor Climate in Buildings. Lyon, France. November 19-21, 1998.
  • Orreveteläinen, P. Development of Standard Measurement Methods for Luminous Characterization of Sea Signals. Lux Junior '97 Conference. Ilmenau, Germany. September 26-28, 1997.
  • Soriano, J., Molina, M., Pantoja, A., Baldovi, R., Orreveteläinen. P., Wallard, J., Adorno, G. & Romero, F. Development of an Standard Measurement Method for the Luminous Characterization of Sea Signals. XIVth IALA Conference. Hamburg, Germany. June 9-19, 1998. AISM IALA. pp. 147-163
  • Tetri, E. Profitability of switching off fluorescent lamps: TAKE-A-BREAK. Right Light 4. 4th European Conference on Energy-Efficient Lighting. Copenhagen, Denmark. November 19-21, 1997.
  • Tetri, E. & Halonen, L. Energy efficiency of household lamps and properties of compact fluorescent lamps. SANCI-CIE International Conference on Lighting in Developing Countries. Durban, South Africa. September 1-3, 1997. 4 p.

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