Our low profile replicated hollow metal retroreflectors are monolithic, fabricated from a single piece of aluminum, resulting in return beam accuracy unaffected by vibration. Vibration sensitivity is reduced further by employing an integrated mount in the design.

The front surface is coated either with gold for high reflectivity in the IR and deep IR, or with Al-MgF₂ for visible and UV wavelengths.

Unlike solid glass retroreflectors, the optical path is entirely in air, so efficient performance is obtained without antireflection coatings which limit the operating wavelength range. Using a novel patented fabrication technique, return beam accuracy as low as 2 arc sec is economically achieved. These retroreflectors are offered in 12.7 and 25.4 mm diameter, and 10, 5 or 2 arc sec return beam accuracy.

Retroreflectors, also known as corner cubes as all three mirror surfaces are perpendicular, will reflect all incoming light 180° regardless of incidence angle. This enables 180 degrees reflection of a beam without requiring prior alignment (as with a flat mirror). Images reflected by a corner cube are reversed and inverted.