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The Refracting Telescope ... Refracting telescopes are often given designations based on the focal length and the refracting lens. For example in the Galileo 700 x 60mm Refractor Telescope, an inexpensive refracting telescope, the 700 tells you how long the focal length is (usually based on the length of the scope).
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www.indepthinfo.com/telescopes/refracting-telescopes.sh...
www.indepthinfo.com/telescopes/refracting-telescopes.shtml
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Refractors are the type of telescope that most of us are familiar with. They have the following parts: ... Diagram of a refractor showing the light path inside.;
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science.howstuffworks.com/telescope2.htm
science.howstuffworks.com/telescope2.htm
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Diagram of a Newtonian reflector showing the light path inside.; ... Dobsonian telescopes are a type of Newtonian reflector with a simple tube and alt-azimuth mounting (see "Telescope Mounts"). They are inexpensive to build or buy because they are made of plastic, fiberglass or plywood.
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science.howstuffworks.com/telescope3.htm
science.howstuffworks.com/telescope3.htm
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How Does a Refracting Telescope Work? ... A refracting telescope consists of three main parts. They are the objective lens, the eyepiece lens, and a tube to put the lenses in. The objective lens is at the front of the telescope. It bends the light so that it focuses at one point. ... Reflecting Telescope Diagram...
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library.thinkquest.org/CR0215468/telescope_introduction...
library.thinkquest.org/CR0215468/telescope_introduction.htm
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His Telescope (and Sir Isaac's) by Peter Tyson ... Designers of refracting telescopes figured out, for one, that by using two different kinds of glass together in the objective lens, they could cause the red and blue ends of the spectrum to converge towards a single focal point, thereby solving the color-fringe problem.
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www.pbs.org/wgbh/nova/galileo/telescope.html
www.pbs.org/wgbh/nova/galileo/telescope.html
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A ray diagram of a Refracting Telescope ... The light enters the telescope from the left and is focussed by the main Lens. ... Refracting Telescope ray diagram...
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www.schoolsobservatory.org.uk/astro/tels/rd_refr.shtml
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There are two main types of optical telescope. Refracting and reflecting. ... We can represent this using a ray diagram which shows the path of imaginary rays of light passing through the telescope.
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www.astronomygcse.co.uk/AstroGCSE/Unit5/RefractingTeles...
www.astronomygcse.co.uk/AstroGCSE/Unit5/RefractingTelescopes.htm
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In this section we will look at the refracting telescope works by bending light with lenses. The objective lens makes a small real image of the object while the eyepiece lens acts as a magnifying glass. The following factors are important ... The diagram shows the telescope when it is set up normally (normal adjustment).
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www.antonine-education.co.uk/Physics_A2/options/Module_...
www.antonine-education.co.uk/Physics_A2/options/Module_5A/Topic_1/topic_1_lenses_and__refracting_t.htm
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We discuss the principles of refracting telescopes in this section and of reflecting telescopes in the following section. ... The following figure illustrates the use of a lens to gather and focus light, and the use of two lenses to make a simple refracting telescope. ... Principle of refraction and the refracting telescope...
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csep10.phys.utk.edu/astr162/lect/light/refracting.html
csep10.phys.utk.edu/astr162/lect/light/refracting.html
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