Patent ID: 9405113
Filing Date: 2016-08-02
CPC Classification: G02B

Claim Text:
1. A microscope focusing mechanism that is provided in a microscope main body including a stage for placing a specimen and a revolver to which a plurality of objective lenses for receiving at least light emitted from the specimen are detachably attached, and that adjusts a focus to the specimen by moving the revolver in a direction of an optical axis of one of the objective lenses, the microscope focusing mechanism comprising: a fixing part attached to the microscope main body; a fixing-side guide member attached to the fixing part; a plate-shaped base part that supports the revolver; a moving-side guide member that is fixed to the base part, that is connected to the fixing-side guide member, and that is movable in the direction of the optical axis; and a plate member that is arranged on a side of the base part opposite to a side of the base part to which the moving-side guide member is fixed, the plate member being fixed to the base part such that an entirety of a surface of the plate member facing the base part is in contact with the base part, wherein a linear expansion coefficient of a material of each of the moving-side guide member and the plate member differs from a linear expansion coefficient of a material of the base part.