Patent ID: 6657781
Filing Date: 2003-12-02
Classification: G02B

Abstract:
A microscope unit comprising:various optical units selectively switching a currently set microscopic method included in a group of a bright field observation method, a dark field observation method, and at least one of a polarization observation method and a differential interference observation method to another microscopic method included in the group, and comprising: a polarizer attachment/detachment section including a polarizer; a bright field/dark field switching section including a bright field cube and a dark field cube; a Nomarski adjustment section including a Nomarski prism; and an analyzer attachment/detachment section including an analyzer; a revolver for an objective lens, to which at least one objective lens is attached; a focusing mechanism which moves the revolver for the objective lens along an optical axis and focuses said objective lens selectively inserted onto the optical axis; a microscope observation tube in which said various optical units, said revolver for the objective lens, and said focusing mechanism each having electromotive actuators are integrally incorporated; and an attachment portion which is disposed on the microscope observation tube and which is detachably attachable with respect to supports of various test apparatuses.