MICROSCOPE SYSTEM, PROJECTION UNIT, AND IMAGE PROJECTION METHOD

A microscope system includes an observation optical system that forms an optical image of a specimen on an object side of an ocular lens; a projection device that superimposes information on an image plane on which the optical image is formed, an imaging device that is provided on an imaging optical path branched from an observation optical path, and a processor. The processor controls the projection device to superimpose, on the image plane, focus information based on a captured image of the specimen acquired by the imaging device and analysis information regarding a result of image analysis on the captured image, the image analysis being different from focus analysis.