The VLTI Delay Line

Schematic representation of the VLTI Delay Line, showing the retro-reflector on its moving base. The Delay Line is a mechanical-optical system that will compensate the optical path differences of the light beams from the individual telescopes. Such a system is necessary to ensure that the light from all telescopes arrive in the same phase at the focal point of the interferometer. Otherwise, the very sharp interferometric images cannot be obtained.

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ESO

About the Image

Id:eso9811a
Típus:Artwork
Közzététel napja:1998. március 11.
Related releases:eso9811
Size:844 x 535 px

About the Object

Név:Very Large Telescope Interferometer
Típus:Unspecified : Technology : Observatory : Telescope
Category:Illustrations
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