The
microscope (S, 100) of the present invention has a hand piece (20, 112), whose tip is mounted with a
thin sheet-like mirror unit (M, 10, 130, 220), and around both ends of the base (11c, 131c) thereof is arranged an illuminating
light source (32, 117), whereby light is emitted to a target object, image light is lead through the light reception bore (27, 116), to the optical
system (114), and is recorded at the
CCD camera (111), to obtain video images. The
thin sheet-like mirror (M, 11, 131) confines light and navigate it, wherein the width of the mirror can be made narrower like a convergent taper surface (11a, 131a); and it is comprised of a base surface (11c, 131c) where illuminating light comes in and image light goes out, and a mirror surface (11b, 131b) where illuminating light and image light go back and forth, and make the reflection thereof, and the mirror surface (11b, 131b) is slanted to 45 degrees. The
microscope may be used as a handy
microscope if it is not equipped with a charge-coupled
device camera. The microscope can provide a wider
horizon, which makes it possible to make a horizontal observation in an extremely narrow space, and can be manufactured at a less expensive price.