0
What is a reflector that uses more than one secondary mirror is called?
LooneyTunerIan
Reflector telescopes are cheaper to make than refractors of the same size than passing through it, only one side of the reflector telescope's Often a secondary mirror is used to redirect the light into a more convenient viewing spot.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoA Coude'-focus telescope, a Newtonian telescope, a Cassegrain telescope or a prime-focus telescope
Add your answer:
Earn +20 pts
Why plane mirror reflector in solar cooker?
Reflects the most light. May need to give more information to the question.
Are there any problems in using a Reflector Telescope?
Generally instead of looking along the axis of the telescope as is done with a refractor sighting the object to view is more difficult since you view the eyepiece at right angles to the main axis of the reflector. The main way to overcome this is to make a hole in the centre of the mirror as is done in the Hubble telescope and view the image from behind the mirror. This is called a Cassegrain configuration.
Who made the cassegrain telescope?
The Cassegrain reflector is a folded optics design, using two mirrors to fold the light path back on itself. This increases the focal length of the telescope, without increasing it's length. By doing so you can compact a more powerful telescope into a smaller frame, which has advantages for small amateur scopes (portability) and large professional ones (reduced cost). First developed in 1672 by Laurent Cassegrain, this reflector is a combination of a primary concave mirror and a secondary convex mirror, both aligned symmetrically about the optical axis. The primary mirror usually contains a hole in the centre thus permitting the light to reach an eyepiece, a camera, or a light detector. The primary mirror is parabolic while the secondary mirror is hyperbolic. Of the three basic types of telescopes: refractors, reflectors and catadioptrics, the Cassegrain reflector falls under the categories of reflecting and Catadioptric designs.
What is a reflecting telescope that uses a secondary mirror to send light through a hole in the primary mirror called?
That is called a Cassegrain. The main mirror is a paraboloid which focusses the light from a star down to a point, then the secondary small mirror is a hyperboloid with one focus that coincides with the focus of the main mirror, and the other focus is behind the main mirror, where the eyepiece is. This arrangement is common in radio telescopes as a way of reducing radio noise picked up from the 'hot' ground which is at approximately 260 degrees Kelvin or more.
What are the disadvantages of a reflecting periscope?
The main disadvantage is that it does not have the advantages of a prism periscope. 1) Glass prisms do not produce multiple reflections 2) Glass prisms do not have exposed silvered surfaces which can be damaged 3) Depending on your arranges, if not the image will not be inverted.
What telescope collects light with a mirror?
The type of telescope is called a reflector. There are multiple subtypes of reflectors like a dobsonian, newtonian, RC, etc. Check out my youtube video on how to work with pictures taken from a telescope. youtu.be/M7-vLeVhM9g
What is a telescope that uses one or more mirrors?
multiple-mirror telescope OPTICAL ;p
What are two types of telescopes and how they work?
there is a refractor and a reflector telescope. refrator is the narrow telescope that works just like a maginifying glass and the reflector telescope takes the image from the lense to the mirror in it's side and thus shows a image. both have their advantages, reflector the narrow telescope is good for viewing objects like planets and moons in the solar system, reflector the wide and short ones are good for stars, nebulas and other bodies out side of the solar system. most scientist and begineers prefer reflector though its a bit more expensive
What was wrong with the Hubble Space Telescope?
The problem with Hubble Space Telescope (the HST, or just the "Hubble") was that the primary reflector, that is, the mirror which redirects the incoming light to focus it, was ground using an incorrectly calibrated reference as a guide. This left it "out of focus" in areas farther from the center. There were a couple of checks for accuracy made with secondary references, and they were off, but the "warning" was ignored and the opinion was offered that the two secondary references were not as accurate as the primary reference was. More information can be had by reading the Wikipedia post on the Hubble. A link to that post can be found below.
The cell commonly called the egg or ovum is more correctly called?
a secondary oocyte.
What is the combination of two or more electrochemical cells in a series is called?
a battery
In what country is the Mirror newspaper based?
The Mirror or Daily Mirror is a British daily paper from the United Kingdom. Known as a tabloid (smaller and more compact than a broadsheet), the paper first came into addition in 1903. The paper also has a sister edition called the Sunday Mirror.
