Patent ID: 8294984
Filing Date: 2012-10-23
Classification: G02B

Abstract:
1. A microscope comprising, in order of position in a direction which laser light passes: a laser light source for emitting the laser light; an optical system which changes a beam diameter of the laser light incident as parallel light; a field stop disposed at a position conjugating with a sample plane, wherein laser light which is parallel light passing through the optical system is incident to the field stop; a dichroic mirror for guiding, to the sample plane, (i) laser light passing through the field stop, and (ii) light from the sample plane to a detection light path; a lens disposed between the field stop and the dichroic mirror; and a mirror disposed between the field stop and the dichroic mirror, wherein: the field stop is disposed at a front side focal point of the lens, and the mirror is disposed at a back side focal point of the lens, the optical system and the field stop are disposed on an illumination light path, and the following conditional equation is satisfied: where “A” is a diameter of the field stop and “D” is a beam diameter of light from the optical system and incident to the field stop.