9th DIN Expert Panel “Effect of light on human beings” on 22 June 2017

On 22 June 2017, the 9th DIN Expert Panel on the topic of “Effect of light on human beings” took place at DIN in Berlin. A total of 120 international experts from the fields of science, politics, standardization, occupational health and safety, architecture and industry discussed the effects of natural and artificial light on the health, mood and productivity of humans.

The effect light has on the internal clock has long been recognised in the mainstream. Artificial light and its interference in of the human circadian rhythm has been an important issue for several years. The experts’ convincing contributions made plain the implications of these effects for our organism and indicated that putting knowledge into practice with the aid of standards represents a step in the right direction.

The presentations focused on the measurement and assessment of light, shift work and the presentation of empirical data from the latest studies. The programme constituted three pillars: natural science, occupational medicine and sleep research. All segments addressed light containing higher proportions of blue light, corresponding to natural daylight, and how this affects humans.

In summary, one can say that light enriched with blue frequencies improves health and productivity and stabilizes the internal clock when used during the day, especially in the morning. Light enriched with blue frequencies can, however, have a negative effect if used at the wrong time. Successfully stimulating concentration can disrupt the circadian system if triggered at night, for example. The health and economic aspects of such lighting must also be considered on a societal scale. Efforts will be dedicated to technical and practical application in the years to come, which is expected to generate improvements for human health as well as the economy.

A special thanks goes to the DIN Standards Committee Lighting Technology (FNL), the “Zentralverband Elektrotechnik- und Elektronikindustrie e. V.” (ZVEI, Central Association of Electrical Engineering and Electronics), the “Verwaltungsberufs-genossenschaft” (VBG, Administrative Employers’ Liability Insurance Association) and the “Deutsche Gesetzliche Unfallversicherung” (DGUV, German Statutory Accident Insurance) for their support. 

Programme of the 9th DIN Expert Panel on 22 June 2017:

  • Dieter Lang, Convenor FNL 27
    Presentation on national standardization activities by DIN FNL 27
  • Dr. Luc Schlangen, Chair CIE JTC-9
    Presentation on global and European standardization activities by CIE and CEN/TC 169
  • Dr. Mirjam Münch, President of SLTBR
    Presentation on program and activities of the SLTBR
  • Prof. George Brainard
    Solid-State Lighting in Space and on Earth
    Thomas Jefferson University, Philadelphia, USA
  • Prof. Robert Lucas
    Melanopsin-dependent photoreception: contribution to vision
    Univ. Manchester, UK
  • Prof. Steven Lockley
    Light-dependent effects on alertness and cognitive performance
    Harvard Medical School, Boston, USA
  • Prof. Dr. Kenneth Wright
    Impact of the natural light dark cycle on the circadian clock in humans - Health risks of insufficient sleep and circadian misalignment
    University of Colorado, USA
  • Prof. Christian Cajochen
    Effect of daylight LED on visual comfort, daytime alertness and sleep
    Centre for Chronobiology, Basel, Switzerland
  • Prof. Eva Schernhammer
    Health Effects of Light during Night Shift Work: the Epidemiological Evidence
    Univ. Vienna, Austria and Harvard Medical School, Boston, USA
  • Dr. Katharina Wulff
    Light and Shift work
    University of Oxford, UK
  • Prof. Herbert Plischke
    A two-year study to investigate effects of Human Centric Lighting in a new production building
    Univ. of Applied Science, Munich, Germany
  • Prof. Till Roenneberg
    In Light of Sleep - Behavioural Changes in Modern History and their Consequences
    Ludwig-Maximilians-University, Munich, Germany
  • Dr. Fabio Bisegna
    Non-image-forming effects of light and energy efficiency in working environments
    Sapienza University of Rome, Italy
  • Dr. Dieter Kunz
    Light for Nightshift
    Intellux GmbH, Berlin, Germany

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