| 摘要 |
PROBLEM TO BE SOLVED: To form a spectral image where every kind of fine structure or the like is expressed without depending on an individual difference in terms of spectral transmission characteristic or the like of an endoscope and to provide useful image information of a body to be observed serviceable to diagnosis or the like. SOLUTION: The endoscopic device has: first to third light sources (LED) 14a to 14c emitting light beams whose wavelength regions are different; a light composing part 12 composing the light beams from the three light sources 14a to 14c; and first to third light source driving circuits 15a to 15c driving the light sources 14a to 14c independently and also variably adjusting output intensity of each of the light beams. By radiating three kinds of synthetic illuminating light beams, whose output intensity is variably adjusted, from the light sources 14a to 14c, arithmetic operation parts 25 and 26 perform matrix arithmetic operation for obtaining the spectral image based on image data of three frames and data on the output intensity of the light obtained by an imaging part 18. The spectral image is formed by selecting the wavelength region thereof or selecting the output intensity of the light sources 14a to 14c. COPYRIGHT: (C)2008,JPO&INPIT
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