Corner Cube

laser medical

Corner Cube Prisms, typically consist of three mirrors or reflective prism faces which return an incident light beam in the opposite direction, it is widely used In surveying, retroreflector prisms are commonly used as targets for long-range electronic distance measurement using a total station. CPG optics specially manufacturing lots kinds of corner cube prisms. 

Our chief prism engineer developed the unique fabricating method 20 years ago, and now nearly all the manufactures in China following it to get more efficiency, higher accuracy etc. We did some optimizations already, so mass production quality control and competitive cost reduce has helped us serviced more worldwide companies, especially those who care about more of fast delivery and cost control.

Schott is our contract supplier of the materials, and we also cooperated the the Chinese local optical glass manufactures for equivallent choices. 


Material BK7/Fused Silca/CaF2/MgF2/BaF2 etc
Dimension Tolerance +0.0, -0.1mm
Clear Aperture > 85%
Deviation 180°± 1 arc seconds

λ/4 @ 632.8nm on big surface

λ/10 @ 632.8nm on other surface

Wavefront Distortion λ/2 @ 632.8nm
Surface Quality 20-10 scratch and dig
Bevel from 0.1mm to 0.5mm x 45°

CPG apply types of coating for the corner cube, like BBAR, Alluminium, Sliver and Gold coating, and we do P/R coatings too for the unique applications.