MARKINGS ON GLASS CUBE-CORNER RETROREFLECTOR AND METHOD OF MEASURING RETROREFLECTOR ORIENTATION

摘要

A retroreflector includes a glass prism having three mutually perpendicular planar reflecting faces and a front face, the three reflecting faces intersecting in intersecting lines each having a mark, the front surface including three marks, each of the marks on the intersecting lines and the front surface having a different angle in a 2D image obtained a camera for any angle of an optical axis of the camera from 0 to 45 degree relative to a vector normal of the front face.