Patent ID: 7016050
Filing Date: 2006-03-21
Classification: G01B,G02B

Abstract:
1. A microscope device with a tilt adjustment for a test surface, comprising: a microscope objective; a surface-measurement light source illuminating the test surface through the microscope objective; surface-measurement optics for imaging the test surface onto a measurement light detector; a point light source directed to the test surface; a tilt-adjustment light detector for providing a test point image of said point light source on reflection from the test surface; means for adjusting a tilt of the test surface so as to cause said test point image on the tilt-adjustment light detector to coincide substantially with a predetermined null position; and a reference mirror and a scanning mechanism for interferometric measurements; wherein said point light source is separate from and independent of the surface-measurement light source, and said tilt-adjustment light detector is separate from and independent of the measurement light detector.