Patent ID: 7450303
Filing Date: 2008-11-11
Classification: G02B

Abstract:
1. A laser scanning microscope comprising: a light source unit that emits laser light; a scanning unit that scans the laser light; an optical system, including an objective lens, that converges the laser light into a specimen; a light detecting unit that detects fluorescence generated at the specimen; a confocal pinhole located on an optical path between the light detecting unit and the objective lens; an image formation lens located on an optical path of light that has passed through the confocal pinhole; and a filter unit located on an optical path of light entering the light detecting unit, at a convergence position of the image formation lens, wherein the filter unit comprises: wherein the filter unit functions as a bandpass filter having a desired wavelength range due to a combination of the filter cells of the short pass filter and the filter cells of the long pass filter.