Theme | The Latest Frontier of Endoscopy | |
---|---|---|
Title | History of OL Wavelength Band Use for Infrared Endoscopes | |
Publish Date | 2006/01 | |
Author | Shigeaki Nagao | The Department of Diagnostic and Therapeutic Digestive Endoscopy, National Defense Medical College / The Second Department of Internal Medicine, National Defense Medical College |
Author | Masaaki Higashiyama | The Second Department of Internal Medicine, National Defense Medical College |
Author | Norikazu Mataki | The Second Department of Internal Medicine, National Defense Medical College |
Author | Koji Matsuzaki | The Second Department of Internal Medicine, National Defense Medical College |
Author | Atsushi Kawaguchi | The Department of Diagnostic and Therapeutic Digestive Endoscopy, National Defense Medical College / The Second Department of Internal Medicine, National Defense Medical College |
Author | Hirohumi Niwa | Guest Professor of St. Marianna Medical University |
[ Summary ] | Light rays in the non-visible optical spectrum have been applied to endoscopic use since the early 1950's. A wide wavelength band, ranging from the short wavelengths to the long wavelengths, including ultraviolet rays, fluorescence, and infrared rays was examined to see if it was possible to put them to practical use. However, those trials failed due to various technical difficulties. On the other hand, it must be recognized that the present stage of development is based on those early trials and research. Therefore, part of the results of the efforts of our predecessors concerning the application of non-visible light rays to endoscopic use are outlined in this text. |