rdop002

1.high quality 2.high accuracy 3.attractive price 4. prisms for topcon total station Optical Cone PrismCone prism consists of three mutually perpendicular surfaces and a string of right-angle surface integral. Its shape is equivalent to the cube of optical glass by a ridge at an angle to cut down the tetrahedron. If the three right-angle surface are accurate 90 °, the incident light by the string ...