Analysis of the possibility of interferometric laser control of the surface of an optical telescope mirror. Part II

Specific systems for interferometric laser control of the surface of a segmented telescope mirror are considered in the case when thermal deformations of the mirror segments can be ignored. The conditions are found under which a spherical wave of the control radiation can be regarded as plane and this makes it possible to simplify considerably the control and automatic alignment system. An estimate is obtained of the precision of measurement of the displacements of the mirror segments which ensures the required quality of the image at the telescope focus.