| 摘要 |
PURPOSE:To provide a small-sized and inexpensive cancer lesion diagnostic apparatus easy to handle using only one diagnostic light source to display the fluorescent image of a cancer lesion part and the whole image of a region to be diagnosed on the same screen separately or in a time sharing manner to observe them. CONSTITUTION:This cancer lesion diagnostic apparatus is equipped with a mercury lamp 1, an optical filter 2 permitting only light in the vicinity of a wavelength capable of efficiently exciting fluorescence peculiar to a light sensitive substance in the light emitted from the mercury lamp 1 to transmit, a wavelength changeover means 4 allowing the light emitted from the mercury lamp 1 to transmit through an optical filter 2 to change the wavelength distribution of the light irradiating the site to be diagnosed, a light transmission passage 5 guiding irradiation light to a lesion part A, an image treatment passage 6 for observing the lesion part A and an image display means 8 displaying the image. By this constitution, the fluorescent image of the cancer lesion part A and the whole image of the site to be diagnosed including a peripheral part B can be obtained separately or in a time sharing manner by one light source 1. |
