A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects radiation (usually light) back to its source with...

Retroreflectors are devices which reflect light back to its source. Six were left at six sites on the Moon by three crews of the Apollo program, two by...

reflected back to Earth by the Moon's surface or by one of several retroreflectors installed on the Moon. Three were placed by the United States' Apollo...

The Laser Ranging Retroreflector (LRRR) is the first ever deployable lunar laser ranging experiment. It was carried on Apollo 11 as part of the Early Apollo...

Measuring tape Plane table Pole (surveying) Prism (surveying) (corner cube retroreflector) Prismatic compass (angle measurement) Ramsden surveying instruments...

came. This configuration is similar to a cat's eye retroreflector. However a cat's eye retroreflector needs a refractive index of around 2, while water...

recorded. The presence of retroreflectors (mirrors used as targets for Earth-based tracking lasers) from the Laser Ranging Retroreflector Experiment (LRRR) is...

astronauts deployed a retroreflector on February 5, 1971, and McDonald Observatory detected it the same day. The Apollo 15 retroreflector was deployed on July...

Reflector, a device that causes reflection (for example, a mirror or a retroreflector) Reflector (photography), used to control lighting contrast Reflecting...

eyes act as a strong retroreflector, sometimes seen at night when walking in wildlands with a flashlight. A simple retroreflector can be made by placing...

A corner reflector is a retroreflector consisting of three mutually perpendicular, intersecting flat reflective surfaces. It reflects waves incident from...

LRRR may refer to: Laser Ranging Retroreflector, for Lunar laser ranging Lrrr, a character in the TV series Futurama Land Rover Range Rover, a series of...

of flight of ultrashort pulses of light to satellites equipped with retroreflectors. This provides instantaneous range measurements of millimeter level...

and some other animals. Lying immediately behind the retina, it is a retroreflector. It reflects visible light back through the retina, increasing the light...

Reticle – Aim markings in optical devices, e.g. crosshairs Radio plate Retroreflector – Device to reflect radiation back to its source Scaphe – Sundial said...

mathematics (STEM), and landing its magnetometer, time capsule, and laser retroreflector on the Moon. The lander's gyroscopes failed on 11 April 2019 causing...

curve fitting PRISM (reactor), a small nuclear power plant design A retroreflector, used in surveying Prism Rail, a British passenger rail company Prism...

A safety reflector is a retroreflector intended for pedestrians, runners, motorized and non-motorized vehicles. A safety reflector is similar to reflective...

Passive Seismic Experiment Package used to measure moonquakes and a retroreflector array used for the lunar laser ranging experiment. Then Armstrong walked...

provided by numerous manufacturers for various applications. As with any retroreflector, sheeting glows brightly when there is a small angle between the observer's...

back by a tiny NASA retroreflector on board the Vikram lander. The purpose of the experiment was to determine the retroreflector's surface location from...

PrOP odometer/penetrometer, a RV-2N radiation detector, and a TL laser retroreflector. An urban legend was spread among the Soviet Union that the Lunokhod...

Instrumentation for General relativity High accuracy Tests) is a laser retroreflector developed as a collaboration primarily between the University of Maryland...

closely. It is usually made of brightly colored plastic, and ends with a retroreflector. French law allows for bicycle safety wings up to 40 centimetres. Bicycle-friendly...

eliminates the need for an assistant staff member, as the operator holds the retroreflector and controls the total station from the observed point. In practice...

2.28×10−4. The placement of 3 retroreflectors on the Moon by the Lunar Laser Ranging experiment and 2 retroreflectors by Lunokhod rovers allowed accurate...

Orbitography and Radiopositioning Integrated by Satellite (DORIS), Laser Retroreflector Array (LRA), and ARGOS data collection system. ISRO is responsible for...

along the other axis Dove prism projects image forward Corner-cube retroreflector projects image backwards Even number of reflections, image projects...

sealed beam Rear position lights Reversing lights Safety reflector retroreflector Stop lights Turn signals trafficators Display Decorative Aroma lamp...

Acoustic Networks". Proceedings of the ACM SIGCOMM 2023 Conference. ACM. pp. 1–19. doi:10.1145/3603269.3604814. ISBN 979-8-4007-0236-5. Retroreflector v t e...