Blue Light Society announces 1st International Symposium in Tokyo June 6-8

Date Announced: 30 Apr 2013

Now we are living in a new light environment era encompassing LED lighting inside and outside of the home and office, self-illuminated tablets and time-shift working hours. Science is discovering how LED lighting affects the human body at the molecular level as well as epidemiological level. As an ophthalmologist, the eye can now be considered a clock, not just as a camera any longer. Light enters the brain to control the circadian rhythm, metabolism and sleep cycle, leading to disruption of these cycles and possibly leading to cancer. We will invite specialists in this field to present and discuss these topics.

We are very thrilled to have the first international meeting in Japan where LED was first invented and where much of the technology has been developed. We are looking forward to welcoming all the scientists, researchers, physicians and health care providers who are interested in this new topic.

"1st International Symposium of Blue Light Society"
Date:June 6 (Thu) 16:00 – 8 (Sat) 17:00, 2013
Venue:JP Tower Hall & Conference, Tokyo, JAPAN
Chair:Kazuo Tsubota (Professor, Keio University)
Official Language:English
*Simultaneous translation will be provided.

Day 1:JUN 6th (Thu)
Opening Lecture 1: Kazuo Tsubota(Keio University, Japan)
Opening Lecture 2:Charles E. Hunt(University of California, USA)
Briefing Night & Reception

Day 2:JUN 7th (Fri)
Workshop 1: LED
Moderator:Charles E. Hunt(University of California, USA)
Kumpei Kobayashi(TOSHIBA MATERIALS Co., LTD., Japan)

Workshop 2: Photo Toxicity
Moderator: Yoko Ozawa (Keio University, Japan)
Yoko Ozawa (Keio University, Japan)
David Sliney (Consulting Medical Physicist, USA)
Motohiro Kamei (Osaka University, Japan)
Masaki Tanito (Shimane University, Japan)

Workshop 3: Circadian Rhythm
Moderator: Masao Doi (Kyoto University, Japan)
Johnni Hansen(Danish Cancer Society Research Center,Denmark)
Mariana Figuerio *Video Lecture(Lighting ResearchCenter, USA)
Yasukazu Nakahata(Nara Institute of Science and Technology, Japan)
Tsuyoshi Hirota(University of California, USA)
Claude Gronfier (French National Institute of Health and Medical Research, France)

Workshop 4: Prevention from Blue Light Hazard
Moderator: Takeshi Ide (Minamiaoyama Eye Clinic, Japan)
Ryo Kubota (Acucela Inc., USA)
Masahiko Ayaki (IUHW Mita Hospital, Japan)
Christian Cajochen *Video Lecture(Psychiatric Hospital of the University of Basel,Switzerland)

Day 3: JUN 8th (Sat)
Short Course 1: Photo Toxicity
Moderator: Susumu Ishida (Hokkaido University, Japan)
Toshihide Kurihara(The Scripps Research Institute, USA)
David Sliney(Consulting Medical Physicist, USA)
Jennifer Hunter(Flaum Eye Institute, University of Rochester, USA)
Russel Van Gelder*Video Lecture(University of Washington, USA)

Short Course 2: LED
Moderator: Charles E. Hunt(University of California, USA)
Charles E. Hunt(University of California, USA)
Yoshio Manabe (Panasonic Corporation, Japan)

Short Course 3: Circadian Rhythm
Moderator: Hitoshi Okamura (Kyoto University, Japan)
Wataru Nakamura (Osaka University, Japan)
Hitoshi Okamura (Kyoto University, Japan)
Satchidananda Panda(Salk Institute for Biological Studies, USA)
Claude Gronfier (Inserm, France)

Short Course 4: Prevention from Blue Light Hazard
Moderator: Kazuo Tsubota (Keio University, Japan)
Akira Obana(Seirei Hamamatsu General Hospital, Japan)
Josep Carreras(Catalonia Institute for Energy Research, Spain)

Conference Secretariat 8-5-40-513 Akasaka Minato-ku, Tokyo 107-0052 JAPAN TEL:+81-3-5775-2075 FAX:+81-3-5775-2076 URL:


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