Corner Cube Retroreflectors

Corner Cube Retroreflectors


Conner Cube Retroreflectors are triangular prisms consisted of three right angles of 90 degrees. Reflected beam has a characteristic of inevitably returning in the direction of the incoming optical axis. The accuracy is shown with angular deviation (parallelism) between input and output beams. It depends on the mutual perpendicularity of the trihedral surfaces. Using this characteristic, they are often used in survey equipment.

Capability

Attribute  Commercial Quality  Precision Quality 
Material N-BK7/Fused Silica/CaF2
Diameter Range Ф2mm - Ф100mm
Diameter Tolerance (mm)  +0/-0.20mm  +0/-0.05mm 
Dimension Tolerance (mm)  ±0.20mm  ±0.05 mm 
Clear Aperture >80% >80%
Deviation 180 degrees ± 5 arc seconds 180 degrees ± 3 arc seconds 
Flatness

lambda/4 per 1inch 
at 632.8 nm on big surface

lambda/10  per 1inch
 at 632.8 nm on other surface 

lambda/8 per 1inch 
at 632.8 nm on big surface

lambda/10  per 1inch 
at 632.8 nm on other surface 

Surface Quality S/D 60-40  S/D 20-10 
Wavefront Distortion lambda/2 at 632.8 nm lambda/2 at 632.8 nm
Bevel 0.2-0.5mmX45° 0.2-0.5mmX45°
Part NO. Diameter (mm) Height (mm)
CCR1101 15 11.3
CCR1102 25.4 19
CCR1103 38 28.5
CCR1104 50.8 37.5