Laser microscopes are designed to generate high-resolution optical images as well as surface shape characterization quickly and accurately. Laser microscopes combine the advantages of magnified observation devices and measurement devices in order to obtain both full-focus images and reliable 3D shape analysis. With these devices, there are no size, shape, or material limitations. Observations can be made at room temperature without the need for a vacuum, and operations are easy to perform in a manner similar to optical microscopes. There is no need for pre-processing of samples and it is possible to perform color observation. All of these factors enable quick and accurate analysis of samples. These microscopes can also be used to observe the surface layer, inside, and bottom layer of transparent targets and to measure film thickness.