DEVICE FOR MEASURING dihedral angles of optical prisms

摘要

The invention relates to measuring equipment and can be used for precision measurement of dihedral angles mirror-prism elements. FIG. 1 shows an apparatus for measuring optical prisms dihedral angles according to the first embodiment. The apparatus includes: an autocollimation measuring instrument 1, 2 periscopic beam-splitting system with a beam splitter mirror 2a and 2b, a turntable 3 and a system of two 4a and 4b of plane mirrors. On the turntable is measured by the prism 5. Each of the additional flat mirrors 6-9 rigidly associated with the respective prism facet measured. Reflective surface portions 6-9 additional flat mirrors located on one side of the prism measured from base 5. The achieved technical result -increasing measurement accuracy dihedral angles of optical prisms and improved performance of the measurement process. 4 yl.