You are here

Laser Ranger Retro-Reflector, Apollo


Display Status:

This object is on display in the Apollo to the Moon exhibition at the National Air and Space Museum in Washington, DC.

Collection Item Summary:

The Laser Ranging Retroreflector is a device that reflects light so that the paths of the reflected rays are parallel to those of the incident rays. Instruments placed on the lunar surface were used in experiments to reflect laser light back to Earth. The reflected light was used to provide precise measurements of the distance between the earth and the moon.

The Bendix Corporation donated this traning unit to the Museum in 1972.

Collection Item Long Description:


Laser Ranger Retro-Reflector, Apollo

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Donated by Bendix Corporation.


  • Overall: metal, plastic
  • Lenses: glass


3-D: 59 × 67 × 27.5cm (23 1/4 × 26 3/8 × 10 13/16 in.)

Country of Origin

United States of America



Inventory Number