Phases compensated cube corner in the case of the laser interferometry

摘要

Retroreflector (102; 210; 312; 410; 510) with phases compensating cube corner, with the following features:an inlet - / exit surface;a first return reflection surface;a phase-compensating film stack (104) on the first return reflection surface, wherein the first phases for vertical end film stack (104) to a reflection, a 2nπ - phase difference in light is induced, n being an integer, including 0 is;a second return reflection surface without a phase-compensating film stack;a third return reflection surface;a further phase-compensating film stack (104) on the third return reflection surface, wherein the further phases for vertical end toward the stack to a reflection 2nπ - phase difference in light is induced, n being an integer, including 0 is,wherein light with the same polarization orientation and the same polarization ellipticity in the cube corners retroreflector and leaves the same.