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Subject Item
dbr:List_of_telescope_parts_and_construction
rdfs:label
List of telescope parts and construction
rdfs:comment
Mirrors and lenses are the critical light-bending components of a telescope. * Objective: The first lens or curved mirror that collects and focuses the incoming light. * Primary lens: The objective of a refracting telescope. * Primary mirror: The objective of a reflecting telescope. * Corrector plate: A full aperture negative lens placed before a primary mirror designed to correct the optical aberrations of the mirror. * Schmidt corrector plate: An aspheric-shaped corrector plate used in the Schmidt telescope. * Meniscus corrector: A meniscus-shaped corrector plate usually used in the Maksutov telescope. * Focusing mask: A full aperture mask temporarily placed before the primary mirror to aid in focusing the telescope. * Bahtinov mask * Carey mask * Hartmann mask * Sub-aperture
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dbc:Astronomy-related_lists dbc:Telescopes dbc:Lists_of_parts
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1076751869
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dbc:Lists_of_parts dbr:Springfield_mount dbr:Telecompressor dbr:Honeycomb_mirror dbr:EQMod dbr:Poncet_Platform dbr:Eyepiece dbr:Coma dbr:Primary_mirror dbr:Instrument_Neutral_Distributed_Interface dbr:Astronomical_filter dbr:Mirror dbr:Equatorial_mount dbc:Astronomy-related_lists dbr:Filter_wheel dbr:Equatorial_platform dbr:Schmidt_corrector_plate dbr:Reflecting_telescope dbc:Telescopes dbr:Versatile_Real-Time_Executive dbr:Image_plane dbr:Astrophotography dbr:Silvering dbr:Equatorial_room dbr:Reflector_sight dbr:Refractor_telescope dbr:German_equatorial_mount dbr:Field_flattener dbr:Cassegrain_reflector dbr:Adaptive_optics dbr:Hartmann_mask dbr:Active_optics dbr:Meniscus_corrector dbr:ASCOM_(standard) dbr:Iron_sight dbr:Finderscope dbr:Bahtinov_mask dbr:Charge-coupled_device dbr:Observatory dbr:Altazimuth_mount dbr:Serrurier_truss dbr:PLate_OPtimizer dbr:Optical_coating dbr:Secondary_mirror dbr:Parabolic_reflector dbr:Lists_of_telescopes dbr:Herschel_Wedge dbr:Star_Diagonal dbr:Cheshire_eyepiece dbr:Coma_corrector dbr:Carey_mask dbr:List_of_telescope_types dbr:Objective_(optics) dbr:Dual_speed_focuser dbr:Clock_drive dbr:Metallizing dbr:Liquid_mirror_telescopes dbr:Catadioptric_system dbr:Field_lens dbr:Telescope_mount dbr:Mirror_support_cell dbr:Barlow_lens dbr:GoTo_(telescopes) dbr:Curved_mirror
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dbpedia-sl:Seznam_delov_teleskopa_in_konstrukcije wikidata:Q6642559 n14:4qygd
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dbo:abstract
Mirrors and lenses are the critical light-bending components of a telescope. * Objective: The first lens or curved mirror that collects and focuses the incoming light. * Primary lens: The objective of a refracting telescope. * Primary mirror: The objective of a reflecting telescope. * Corrector plate: A full aperture negative lens placed before a primary mirror designed to correct the optical aberrations of the mirror. * Schmidt corrector plate: An aspheric-shaped corrector plate used in the Schmidt telescope. * Meniscus corrector: A meniscus-shaped corrector plate usually used in the Maksutov telescope. * Focusing mask: A full aperture mask temporarily placed before the primary mirror to aid in focusing the telescope. * Bahtinov mask * Carey mask * Hartmann mask * Sub-aperture corrector: One or a series of corrective lens (sometimes combined with a corrective curved mirror) placed after (near the focus) a primary mirror designed to correct the optical aberrations of the mirror. These can be just a small version of the corrector plate, but since they are usually used in a Cassegrain configuration in front of the secondary mirror they require additional modification since the light passes through them twice. * Secondary mirror * Mirror#Instruments * Curved mirror * Honeycomb mirror * Liquid mirror * Parabolic reflector Subsequent (sometimes optional) components realign, segment, or in some way modify the light of an incoming image: * Field lens: A correcting lens placed just before the image plane of a telescope. * Telecompressor or focal reducer: Optical element to decrease the telescope's focal length and magnification (usually by a fixed percentage) and widen the field of view, providing opposite effects of a Barlow lens. * Star Diagonal: Used to change the angle of the light coming out of a telescope, for easier viewing. * Herschel Wedge: Similar to a star diagonal with a wedge-shaped unsilvered prism reflector that reduces incoming light by up to 95% for solar viewing. * a correcting lens used to reduce coma distortion in fast reflecting telescopes. * a correcting lens used to reduce field curvature in refracting telescopes for astrophotography. * Barlow lens: Optical element to increase the telescope's focal length and magnification, narrow the field of view and reduce coma distortion, providing opposite effects of a telecompressor. * Astronomical filter: Used to select specific colors (or light frequencies) for astrophotography. * : One manner to easily insert filters into the optical train. Mostly used for photography. * Focuser: Allows the user to adjust the focus by moving the eyepiece along the optical axis. * Eyepiece: Performs the final focus correction before the light reaches the eye. * Charge-coupled device (CCD): A light-sensitive integrated circuit digital sensor (commonly used in digital cameras) that turns light into an electrical charge used to collection image data. Generally applicable to all items: * Metallizing: A way of coating mirrors for high-efficiency light reflection. * Optical coating: Thin layers applied to mirrors, filters, and lenses to avoid reflections, as well as absorb certain colors.
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wikipedia-en:List_of_telescope_parts_and_construction?oldid=1076751869&ns=0
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wikipedia-en:List_of_telescope_parts_and_construction