Patent ID: 6903816

Claim:
A scanning laser microscope which scans a sample with a laser light beam having at least one spectrum band through an objective using a scanning device, and which narrows a fluorescence from the sample within a desired spectrum range to perform an optical detection, said microscope comprising: a spectrum decomposition part configured to separate the laser light beam into a spectrum of the at least one spectrum band; a first optical system configured to condense the separated laser light beam; a second optical system configured to condense a light from the sample while collimating the laser light beam; a spectrum synthesis/decomposition part configured to separate the light from the sample into a spectrum while synthesizing the separated laser light beam; at least one reflector which is arranged substantially at a focus position of the first optical system and the second optical system, and which is configured to pass the laser light beam and reflect a part of the light from the sample; and an optical detector which detects the light reflected by a respective one said reflector.