Patent ID: 8960909
Filing Date: 2015-02-24
Classification: A61B,G01B,G01J

Abstract:
1. A control apparatus comprising: an irradiation unit configured to irradiate a measurement object with a measuring light; a restriction unit configured to restrict the measuring light from being incident on the measurement object and to reflect or scatter the measuring light; and a polarization control unit configured to control, based on the measuring light reflected or scattered by the restriction unit, polarization of the measuring light; and a control unit configured to have a first mode to cause the polarization control unit to control polarization of the measuring light, and a second mode to acquire an image concerning the measurement object; wherein the restriction unit is configured to be inserted in and removed from an optical path connecting the measurement object and the irradiation unit, and wherein the control unit is configured to, in the first mode, insert the restriction unit in the optical path, and, in the second mode, remove the restriction unit from the optical path.