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In space there is no interference by Earth's atmosphere.
In space there is no interference by Earth's atmosphere.
In space there is no interference by Earth's atmosphere.
In space there is no interference by Earth's atmosphere.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoA reflecting telescope can be more compact and better able to withstand its own gravitational stresses, and you can get higher magnifications by "folding" the telescope through the use of mirrors.
A conventional refracting telescope using lenses rather than mirrors would collapse under its own weight before you could even APPROACH the size of a large reflecting telescope.
Additionally, all lenses absorb some small fraction of the light passing through them. Reflecting mirrors can be made almost 100% efficient, losing very little of the light.
The lens must be transparent. The mirror must only be solid.
The lens must be perfect through and through. The mirror only needs a perfect surface.
The lens needs two perfectly shaped surfaces. The mirror needs only one.
The lens can be supported only around its edge. The mirror can be supported at
as many points across its back as desired.
Wiki User
∙ 12y ago1). The light doesn't go through the mirror, it only hits one surface of the mirror
and bounces back in the direction it came from. So you can use anything you want
to support the weight of the mirror from behind it, whereas you can only support a
lens around its edge.
2). The light doesn't go through the mirror, it only hits one surface of the mirror
and bounces back in the direction it came from. So the mirror doesn't need to be
made of super-quality optical glass. It only needs to be glass that holds its shape
when the temperature changes. For a lens, you have to be very strict about how
the glass will affect light that passes through it, but that doesn't matter for a mirror.
3). For that matter, since the light doesn't go through the mirror and it only hits
one surface and bounces back in the direction it came from, the mirror doesn't
even have to be made of glass. You can use any material you want, as long as
you can carve the proper shape into one surface of it, and expect it to keep its
shape when the temperature changes. Newton had a reflecting telescope with
a brass mirror.
Wiki User
∙ 13y agobecause the telescope has a bowl-shaped lense and light bends the image
Wiki User
∙ 14y agoIn space there is no interference by Earth's atmosphere.
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What is the difference between a reflecting telescope a refracting telescope and a radio telescope?
Reflecting telescopes are usually designed to capture and concentrate light through the use of a large concave mirror which focuses the captured light on a smaller, flat mirror which in turn reflects it to the eye or a camera. Refracting telescopes use convex lenses to capture light and focus it where the eye or a camera is. Radio telescopes collect long wavelength radiation (radio waves and microwaves) and are all forms of reflecting telescope. The first telescopes were refracting telescopes, because the technology existed to form the needed sizes of convex lenses. Reflecting telescopes were developed later, when advancing technology provided the means of making very regular concave mirrors. All the largest modern telescopes are variations on the reflecting telescope design because it is easier to make and manage very large concave mirrors than it is to make lenses of equivalent light collecting power.
Why do reflecting telescopes use con cave mirrors and not convex mirrors?
Convex mirrors spread and not focus light. They do the opposite of concentrating and magnifying. They are the mirror image of what a concave telescope is and does. Pun intended.
What are the Uses of reflecting light?
Mirrors and telescopes use light reflection.
Do refracting and reflecting telescopes use visible light to view the images?
Those terms are most commonly used for optical telescopes. However, the same design can be used for non-visible frequencies; for example, radio telescopes of the "satellite dish" variety are essentially reflecting telescopes.
What is the difference between refracting telescopes and reflecting telescopes?
Hi , A reflective scope uses mirrors to focus the image and the light while a refractive scope uses curved glass lenses to focus the light and the image. Generally the reflector telescope is better for deep sky viewing and the refractor is better for lunar and planetary viewing. You can also find a compound telescope which uses both glass and mirrors which is better for general viewing. This site very good for info and purchase http://www.tejraj.com/index.html Contact Me: http://notesonline.co.in/mail.asp
What type of optical telescopes use mirrors to focus light?
concave mirrors, and curved mirrors
What reasons you use concave mirrors?
Concave mirrors are used as the primary mirror in Newtonian and Dobsonian telescopes for astronomy observations. Concave mirrors are also used in mirror lenses for cameras.
What is the difference between a reflecting telescope a refracting telescope and a radio telescope?
Reflecting telescopes are usually designed to capture and concentrate light through the use of a large concave mirror which focuses the captured light on a smaller, flat mirror which in turn reflects it to the eye or a camera. Refracting telescopes use convex lenses to capture light and focus it where the eye or a camera is. Radio telescopes collect long wavelength radiation (radio waves and microwaves) and are all forms of reflecting telescope. The first telescopes were refracting telescopes, because the technology existed to form the needed sizes of convex lenses. Reflecting telescopes were developed later, when advancing technology provided the means of making very regular concave mirrors. All the largest modern telescopes are variations on the reflecting telescope design because it is easier to make and manage very large concave mirrors than it is to make lenses of equivalent light collecting power.
Why do reflecting telescopes use con cave mirrors and not convex mirrors?
Convex mirrors spread and not focus light. They do the opposite of concentrating and magnifying. They are the mirror image of what a concave telescope is and does. Pun intended.
What are the Uses of reflecting light?
Mirrors and telescopes use light reflection.
What kind of telescope uses a concave mirror?
Concave means bulging inward - reflecting telescopes use this sort of mirror. The first telescope designed to use one was invented by Isaac Newton and they are therefore called "Newtonian" telescopes.
Do refracting and reflecting telescopes use visible light to view the images?
Those terms are most commonly used for optical telescopes. However, the same design can be used for non-visible frequencies; for example, radio telescopes of the "satellite dish" variety are essentially reflecting telescopes.
Which type of telescope uses concave mirrors to increase the size of the image being viewed?
Refracting
What is a refracting and a reflecting telescope?
A refracting telescope is a type of telescope that has a large thin lense at the front and a smaller thicker lense at the end where the eyepiece is. Refracting telescopes use lenses unlike reflecting telescopes that use mirrors to reflect the light. This is a good image of a refracting and reflecting telescope: [See related link]
What is the difference between refracting telescopes and reflecting telescopes?
Hi , A reflective scope uses mirrors to focus the image and the light while a refractive scope uses curved glass lenses to focus the light and the image. Generally the reflector telescope is better for deep sky viewing and the refractor is better for lunar and planetary viewing. You can also find a compound telescope which uses both glass and mirrors which is better for general viewing. This site very good for info and purchase http://www.tejraj.com/index.html Contact Me: http://notesonline.co.in/mail.asp
Does a telescope use a convex lens?
Reflecting telescopes don't use lenses - they use mirrors (hence 'reflecting'). Light goes in the top, hits a concave mirror at the bottom of the tube which makes the light converge when it is reflected, then bounces back up to the top where it hits a smaller secondary mirror, where it is directed down the eyepiece. Do you mean refracting telescopes? If so then these do use lenses, the amount depends on the telescope. The most simple form has an objective lens which focuses the light, and then an eyepiece which has a lens in it to magnify the image. The objective lens is convex on the side pointing out of the telescope, and is flat on the other side.
What type telescopes use mirrors to bring light to focus.?
Reflectors - the main two types being Newtonian and Cassegrainian.
