secondary mirror

collocation in English

meaningsofsecondaryandmirror

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withmirror.
secondary
adjective
uk
/ˈsek.ən.dri/us
/ˈsek.ən.der.i/
less important than ...
See more atsecondary
mirror
noun
uk
/ˈmɪr.ər/us
/ˈmɪr.ɚ/
a piece of glass with a shiny, metal-covered back that reflects light, producing an image of whatever is in front ...
See more atmirror

(Definition ofsecondaryandmirrorfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofsecondary mirror

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Small alignment errors in using thesecondarymirrorhave negligible effect on the final photographs.
From theCambridge English Corpus
Thesecondarymirrorposition is also actively controlled in three directions.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
He designed, assembled, tested and delivered diffraction-limited performance in itssecondarymirrorassembly.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Thesecondarymirroris mounted on a hexapod support so that its position, tip, and tilt are also computer-controlled.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
This obstruction and also the diffraction spikes caused by the support structure (called "the spider") of thesecondarymirrorreduce contrast.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
In contrast, a catadioptric telephoto lens renders bokehs resembling doughnuts, because itssecondarymirrorblocks the central part of the aperture opening.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Thesecondarymirroris mounted on a hexapod to increase the side-viewing and ground scanning ability for the originally intended reconnaissance mission.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
It provides correction of aberrations via a two-element meniscus-shaped corrector lens in front of thesecondarymirror.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
This was to allow the same cell to measure both selective and full field for which thesecondarymirrorwas larger than earlier cameras.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Thesecondarymirrorblank has been constructed and coarse-ground to within 40 m of the desired shape.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
A centrally-placedsecondarymirrorand usually an additional small lens group bring the light to focus.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
The telescope had a small convex hyperboloidalsecondarymirrorplaced near the prime focus to reflect light through a central hole in the main mirror.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
They are artifacts caused by light diffracting around the support vanes of thesecondarymirror.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
It has been upgraded, including the installation of a newsecondarymirror.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Thesecondarymirrorposition is also adjustable in three directions.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
The unique donut bokeh produced by mirror lenses because of the optical pathway obstruction of thesecondarymirroris especially polarizing.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Thesecondarymirroris a convex hyperboloid of 1.24 m diameter.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
A 3 msecondarymirrorproduces an unobstructed field-of-view of 20 arcminutes in diameter with a focal ratio of 15.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
The comparatively smallsecondarymirroris 2.74 m in diameter, which will serve active corrections.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
The f/ratio is long to have a smallsecondarymirror, again to minimize the telescope's thermal emission.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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See other collocations withmirror