Patent ID: 8314940
Filing Date: 2012-11-20
Classification: B82Y,G01B,G01Q

Abstract:
1. A probe microscope for scanning a surface of a measurement target object to observe a surface shape of the measurement target object, comprising: a cantilever that includes a probe that can be brought into contact with the measurement target object; a first displacement detection optical system that detects displacement of the cantilever, the first displacement detection optical system including: a second displacement detection optical system that detects displacement of the measurement target object, the second displacement detection optical system including: an object lens that is provided at a position between the cantilever and the first light source and between the cantilever and the second light source, the object lens having a focal position for the light that is emitted from the first light source and has the first wavelength at the position of the cantilever and has a focal position for the light that is emitted from the second light source and has the second wavelength at the position of the measurement target object.