Hollow retroreflector arrays play a key role in modern Fourier Transform Infrared Spectroscopy (FTIR) technology, especially when conducting long-distance and large-scale spectral analysis.The design of this array ensures that the incident and emitted beams maintain precise  parallelism and can efficiently reflect the beams back to their original path. In this way,hollow retroreflector arrays provide excellent optical wavefront quality, thereby enhancing the accuracy and efficiency of spectral analysis.

Application fields: Military, aerospace, commercial laser trackers, and scientific research.

American PLX Company has applied hollow retroreflector arrays to assist NASA's Endeavour Space Shuttle  radar mission in creating a high-resolution database of the EarthAmerican PLX Company has  applied  hollow retroreflector arrays to assist NASA's Endeavour Space Shuttle radar mission in creating  a high-resolution database of the Earth.

The hollow retroreflector arrays from American PLX Company are also applied the Space Shuttle Radar Topography Mission (SRTM).Acting as highly reflective structures,they appear as bright spots in radar imagery.These retroreflectors,with precise measurement coordinates, are deployed as control points in the SRTM.Hollow retroreflectors have been widely used in laser tracking systems, primarily for maintaining the direction of the laser beam, thereby improving measurement accuracy. Large-sized, borderless hollow retroreflector arrays are also widely adopted in long-baseline measurement equipment.Additionally, in spectroscopes high-precision hollow retroreflectors ensure the detection accuracy of the instruments.