Patent ID: 6542293
Filing Date: 2003-04-01
Classification: B01L,G02B

Abstract:
An observing apparatus for observation a substance, said observing apparatus comprising:a container including a transparent area, wherein an inside surface of said transparent area is where the substance is to be disposed; an optical system being operable to observe the substance from an outside surface of said transparent area; a focusing mark being disposed on one of said inside surface and said outside surface of said transparent area; focus-shift means for shifting a focal point of said optical system; a focus-position storing unit being operable to store a focus-shift-distance of said optical system from said focusing mark to the substance; and a control unit being operable to control said focus shift means to shift the focal point of said optical system by the focus-shift-distance stored in said focus-position storing unit after said optical system focuses on said focusing mark.