Examples of 'refractors' in a sentence
Meaning of "refractors"
refractor (noun): An optical instrument, such as a telescope, that uses lenses to refract light and form images of distant objects
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- plural of refractor
How to use "refractors" in a sentence
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refractors
Refractors were the earliest type of optical telescope.
Lighting manufacturers use borosilicate glass in their refractors.
Refractors generally do not need collimation.
The steel is used to reinforce insulation for refractors.
Refractors suffer from residual chromatic and spherical aberration.
Reflectors cost less than refractors.
Often small refractors outperform larger reflectors because of superior contrast.
Require more maintenance than refractors.
The refractors are great for beginners as they require little to no maintenance.
These must be the refractors.
Reflectors and refractors of a kind suitable for use with motor vehicles.
Reflector telescopes are cheaper to make than refractors of the same size.
Most subjective refractors are offered to practitioners with orthogonal analyzers mounted in the accessory wheels.
Cost per inch of aperture is midway between reflectors and refractors.
Some other telescope manufacturers use Takahashi refractors as collimating instruments for larger telescopes.
See also
The era slowly came to end as large reflecting telescopes superseded the great refractors.
Great refractors were often used for observing double stars and equipped with a Filar micrometer.
It is an ideal companion to the wide field short-tube refractors.
At the same time, refractors continued to be perfected.
There is a lot of things you need to get across this universe - warp drive, wormhole refractors.
Because of this, large refractors seemed to be the better choice.
She 's rigged up image refractors.
No larger refractors could be built because of gravity 's effect on the lens.
Light-polluted urban skies - compound telescopes and refractors tend to do better than reflectors.
Apochromatic refractors have objectives built with special, extra-low dispersion materials.
Doctor says it 's the refractors.
The company also produced refractors and reflectors with silver-covered mirrors.
She 's riggeded up image refractors.
For this reason, refractors are the most expensive instruments of any given aperture.
Different telescope types, like Newtonian, Schmidt-Cassegrain, or refractors all need good collimation.
Generally, refractors provide crisper images of planets, but lack the light gathering ability of reflectors.
Physics for Scientists and Engineers, Refractors were the earliest type of optical telescope.
The main types of telescopes, refractors →.
Other designs such as refractors and catadioptrics ( specifically Maksutov cassegrains ) have fixed collimation.
Most discoveries during this period were made with refractors with fls of 30 to 40 feet.
Achromatic refractors There are 4 products.
Surgical devices generally include, but arc not limited to, clamps, scissors, forceps, dissectors, and refractors.
Apochromatic refractors ESPRIT There are 2 products.
Experimental reconstruction of Lomonosov 's discovery of Venusian atmosphere ( 1761 ) with antique refractors.
Bowman 's Best Jumbo Refractors 10 cards inserted one per retail Topps box.
SCOTTY, She 's rigged up image refractors.
The 57 Archives refractors look really good.
