Patent ID: 7239384

Claim:
A laser-scanning fluoroscopy apparatus comprising: a laser light source for emitting laser beams with a plurality of wavelengths; a spectroscopic device for splitting the laser beams emitted from the laser light source according to wavelength; a focusing lens for focusing the laser beams split by the spectroscopic device; a mirror device including: a plurality of first reflection sections, disposed near focal positions of the focusing lens, spaced out in a split direction of the spectroscopic device to reflect the laser beams with different wavelengths in a first direction; and a second reflection section arranged adjacent to the first reflection sections to reflect incident light in a second reflection direction; a diffraction grating for combining the laser beams reflected by the first reflection sections in the first direction; a scanning section for two-dimensionally scanning the laser beams combined by the diffraction grating; an objective optical system for focusing the laser beams scanned by the scanning section onto a tissue; and a photodetector for detecting fluorescence emitted from the tissue, the fluorescence returning through the objective optical system, the scanning section, and the diffraction grating, and being reflected at the second reflection section of the mirror device, wherein a width dimension, as measured along the split direction, of each first reflection section of the mirror device is smaller than the width dimension of the second reflection section.