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REFLECTING PRISM [5 records]

Record 1 2016-09-23

English

Subject field(s)
  • Optics
CONT

A prism having an angle of 90 degrees between two refracting surfaces and the other two angles being equal to 45 degrees is called a total reflecting prism.

French

Domaine(s)
  • Optique

Spanish

Save record 1

Record 2 2000-07-12

English

Subject field(s)
  • Optics
  • Optical Glass
DEF

A complex prism unit which includes a pair of internally reflecting surfaces perpendicular to each other, thus resembling a roof externally. One type is the Amici prism...

CONT

... a roof prism consists of a right-angled prism whose hypotenuse surface is replaced by an internally reflecting roof, so that a beam entering one of the other faces perpendicularly will be reflected successively at both surfaces of the roof and emerge from the last surface in a direction perpendicular to the incident path to form an inverted image.

French

Domaine(s)
  • Optique
  • Verres d'optique
Key term(s)
  • redresseur en toit
  • redresseur à vision directe

Spanish

Save record 2

Record 3 1993-11-09

English

Subject field(s)
  • Facilities and Instruments (Astronomy)
  • Surveying Instruments
  • Scientific Instruments
DEF

a portable instrument consisting of a small telescope, a 60-degree prism, and a mercury reflecting basin by which determinations of time, latitude, and azimuth may be obtained from star observations.

French

Domaine(s)
  • Installations et instruments (Astronomie)
  • Instruments d'arpentage
  • Instruments scientifiques
DEF

instrument servant à la détermination des points astronomiques. Il est muni d'un horizon artificiel. L'astrolabe est un instrument de mesure des hauteurs des astres.

Spanish

Save record 3

Record 4 1985-06-17

English

Subject field(s)
  • Range Measurements (Telecommunications)

French

Domaine(s)
  • Mesures à distance (Télécommunications)

Spanish

Save record 4

Record 5 1976-06-19

English

Subject field(s)
  • Astronomy
  • Geophysics
  • Tectonics
OBS

This equipment will be used for making high-precision geodetic and space-geodynamics measurements in relation with laser-telemetering stations installed on the ground.

French

Domaine(s)
  • Astronomie
  • Géophysique
  • Tectonique
OBS

Ces matériels serviront à faire des mesures de géodésie et de géodynamique spatiales de grande précision en liaison avec des stations de télémétrie-laser installées au sol.

Spanish

Save record 5

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