Patent ID: 9036155
Filing Date: 2015-05-19
Classification: G01B

Abstract:
1. A six-axis four-subdividing interferometer comprising a six-axis light splitting system, and an interference module, wherein the six-axis light splitting system and the interference module are sequentially arranged along an incident direction of a polarization orthogonal double-frequency laser; the six-axis light splitting system comprises a first splitter having a splitting ratio of 33%, a second splitter having a splitting ratio of 50%, a third splitter having a splitting ratio of 50%, a fourth splitter having a splitting ratio of 50%, and a fifth splitter having a splitting ratio of 50%, all of said splitters being 45-degree plane beam splitters, and a first, a second, a third, and a fourth mirrors, said mirrors being 45-degree full-reflecting mirrors; the first splitter divides the incident polarization orthogonal double-frequency laser into a transmission beam and a reflection beam; the second splitter and the first mirror are sequentially arranged above the first splitter to receive and divide the reflection beam from the first splitter; the third splitter, the fourth splitter, and the fifth splitter are sequentially arranged from bottom to top on a first vertical plane to receive and divide the transmission beam from the first splitter; and the second mirror, the third mirror, and the fourth mirror are sequentially arranged from bottom to top on a second vertical plane to respectively reflect and change direction of refection beams from the third splitter, the fourth splitter, and the fifth splitter, the second vertical plane being in parallel to the first vertical plane.