Corner Cubes / Solid Retro Reflectors (CCP)
180° bending prisms
- 2 dimensional constant deviation
- Total internal reflection at three faces
Corner cubes are excellent retro-reflectors. They return an incoming beam in the opposite direction along the same path. They produce a two dimensional 180° beam deviation making them useful for alignment purposes. These prisms are manufactured from BK7A or Fused Silica and may be selected to have 2, 5 or 10 arc sec angular deviation tolerance. The prisms are supplied uncoated but Lambda can apply anti-reflection coatings to the entrance face and protected metallic coatings to the three cube corner faces as required.
Material: |
BK7A
UV Fused Silica |
Angular Deviation |
< 2 arc sec
< 5 arc sec
< 10 arc sec |
Surface Flatness: |
< λ / 4 |
Surface Quality: |
<40/20 |
Dimension Tolerance: |
< + 0.00 / – 0.20 mm |
Clear Aperture: |
> 85% in central circular dimension |
Bevel: |
0.1 mm (typical) x 45° on Exit / Entrance face.No bevel on the apex of the corner. (Sharp edge) |