Corner Cube Retroreflectors

Standard Specifications

• Beam deviation: 180° ± 2 arc sec to 180° ± 8 arc sec (size-dependent)
• Material: N-BK7 Grade A optical glass, UV Fused Silica, Silicon single crystal.
• Size range: Φ2 mm to Φ200 mm
• Dimension tolerance: ±0.15 mm
• Clear aperture: >85%
• Flatness: λ/8 - λ/4 @ 632.8 nm (surfaces size dependent)
• Surface quality: 60-40 Scratch/Dig (40-20 S/D available)
• Wavefront distortion: λ/2 @ 632.8 nm
• Chamfer: Specified by customer
• Coating: Metallic High Reflective Coatings with R > 97% @ 400-1200 nm (protected Al) or R > 93% @ 400–1200 nm (enhanced Al); Multilayer Broadband Antireflective Coatings with R < 0.6% @ 450–650 nm or R < 1.0% @ 420–700 nm

Main Applications

• Geodetic survey and mapping: Corner cube retroreflectors are core components in total stations, GPS receivers, and surveying instruments.
• Satellite positioning and navigation: Retroreflectors used in GNSS and satellite laser ranging systems.