| abstract |
PROBLEM TO BE SOLVED: To provide a radiation diagnostic system using a stimulable phosphor sheet, an autoradiography system, a detection system using an electron microscope, and a radiation diffraction image detection, provided with a plurality of excitation light sources that emit excitation lights having different wavelengths. Provided is an image reading device that can be used in a system and a fluorescence detection system and that can read an image with high sensitivity and a simple structure. SOLUTION: At least two laser excitation light sources (1, 2, 3) for emitting laser lights having different wavelengths, and a laser light (4) emitted from the laser excitation light sources (1, 2, 3). A laser beam scanning means (19) for scanning an image carrier (12) carrying an image, and a light detection means (20, 2) for photoelectrically detecting light emitted from the image carrier (12). 1), the laser beam scanning means (19) includes a laser beam transmitting portion (17a) for transmitting the laser beam (4), and the image carrier (1). The light emitted from the light detecting means (2) is reflected by the light detecting means (2). 0, 21) is provided. |