Retroreflectors are sometimes called corner cubes because the reflecting surfaces are three mutually perpendicular faces like the corner of a cube.
Any ray entering the effective aperture will be reflected back 180°and parallel to itself, regardless of the entrance angle.
Retroreflectors are ideal in applications where orientation is difficult or impossible to control.
Manufacturing Tolerances
Attribute |
Commercial standard |
Precision Standard |
Material |
BK7, fine annealed |
BK7, fine annealed |
Dimensional Tolerance |
±0.25 mm |
±0.15 mm |
Height (h) Tolerance |
± 0.25 mm |
± 0.15 mm |
Cosmetics (Scratch-dig) |
80-50,60-40 |
20-10,10-5 |
Beam Deflection |
180°±5",180 °±1' |
90°±30”, 90°±5” |
Clear Aperture |
85% Reflecting |
90% Reflecting |
Coating |
See attached coating chapter |
See attached coating chapter |
All dimensions are in mm unless otherwise specified.
Different material, sizes, tolerance and coating are available upon request.
