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Null corrector

A null corrector is an optical device used in the testing of large aspheric mirrors. A spherical mirror of any size can be tested relatively easily using standard optical components such as laser, mirrors, beamsplitters, and converging lenses. One method of doing this using a Shack cube is shown at the right, and many other setups are possible. An…

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Null corrector

Nodes19
Edges18
Triples9
Avg. degree1.89
Density0.105263
Components1

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Null corrector

Top relations

is a · 1
Null corrector → optical device used in the testing of large aspheric mirrors
used for · 1
Null corrector → the MMT Observatory single-mirror retrofit

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Important terminology

null mirror corrector mirrors used spherical optical one test lenses tested using perfect result since telescope desired now correct hologram

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SubjectPredicateObjectConfidenceSrc
Null correctoris aoptical device used in the testing of large aspheric mirrors0.90text
laserinstance ofA spherical mirror of any size can be tested relatively easily using standard optical components0.80text
mirrorsinstance ofA spherical mirror of any size can be tested relatively easily using standard optical components0.80text
beamsplittersinstance ofA spherical mirror of any size can be tested relatively easily using standard optical components0.80text
and converging lensesinstance ofA spherical mirror of any size can be tested relatively easily using standard optical components0.80text
this one generates a contour map of the deviation of the surface from a perfect sphereinstance ofAn interferometer test0.80text
with the contours in units of half the wavelength usedinstance ofAn interferometer test0.80text
LSSTinstance ofor three-mirror anastigmats0.80text
Null correctorused forthe MMT Observatory single-mirror retrofit0.80text

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