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Proceedings Paper

The innovations with the medical applications of white LEDs and the breakthrough for new business
Author(s): Jun-ichi Shimada M.D.; Kazuhiro Itoh M.D.; Motohiro Nishimura M.D.; Youichi Kawakami; Kiyotsugu Tsuji
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Paper Abstract

The distance between the LED and the surface of the target organ is about 4-5 cm, and we think this will become the "ultimate super-localized LED lighting". In an experiment with swine, we placed a LED module at the tip of the retractor. When compared to endoscopic lighting, this method illuminated the entire thoracic cavity more brightly. Since the light is emitted from the cylinder-shaped camera component, the light is unidirectional, and the shadows from the surgical instruments are moved to the side of the incision. Retractor LED lights provided enough light in the thoracic cavity. we believe that "medical white LEDs" can contribute in clinical settings as a light source for performing safe operations with bright surgical fields in the near future. Also, we use our LEDs for new real business. In the summer of 2004, LED lighting was world first used in the 1200 year-old Gion Festival for the first time in history as "a lighting device that does not destroy cultural assets by light heat". And the next is "Lighting at the "Diva status at diva gate" and the "Thousand Armed Avalokiteshwara in innermost sanctuary in the main hall" at Kiyomizudera in Kyoto". It was a great success, and we were invited back in the spring of 2005 and for future applications. We think this is the first real application of LEDs as an outdoor lighting device. The number of people who visit Kiyomizudera is 4000,000 annually, and LEDs were adopted to illuminate the diva gate.

Paper Details

Date Published: 22 February 2006
PDF: 8 pages
Proc. SPIE 6134, Light-Emitting Diodes: Research, Manufacturing, and Applications X, 613408 (22 February 2006); doi: 10.1117/12.645967
Show Author Affiliations
Jun-ichi Shimada M.D., Kyoto Prefectural Univ. of Medicine (Japan)
Kazuhiro Itoh M.D., Kyoto Prefectural Univ. of Medicine (Japan)
Motohiro Nishimura M.D., Kyoto Prefectural Univ. of Medicine (Japan)
Youichi Kawakami, Kyoto Univ. (Japan)
Kiyotsugu Tsuji, Tsuji Plastics Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 6134:
Light-Emitting Diodes: Research, Manufacturing, and Applications X
Klaus P. Streubel; H. Walter Yao; E. Fred Schubert, Editor(s)

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