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See searches and references containing PRIMARY MIRROR!PRIMARY MIRROR
Main light-gathering source of reflecting telescope
A primary mirror (or primary) is the principal light-gathering surface (the objective) of a reflecting telescope. The primary mirror of a reflecting telescope
Primary_mirror
Major astronomical facility in Chile
a 39.3-metre-diameter (130-foot) segmented primary mirror and a 4.25 m (14 ft) diameter secondary mirror. The telescope is equipped with adaptive optics
Extremely_Large_Telescope
Telescope under construction in Chile
construction at Las Campanas Observatory in Chile's Atacama Desert. With a primary mirror diameter of 25.4 meters, it is expected to be the largest Gregorian
Giant_Magellan_Telescope
NASA/ESA/CSA space telescope launched in 2021
Webb's primary mirror consists of 18 hexagonal mirror segments made of gold-plated beryllium, which together create a 6.5-meter-diameter (21 ft) mirror, compared
James_Webb_Space_Telescope
Array of smaller mirrors designed to act as one large curved mirror
segmented mirrors. There is a technological limit for primary mirrors made of a single rigid piece of glass. Such non-segmented, or monolithic mirrors can not
Segmented_mirror
Astronomical optical telescope
the primary mirror is composed of an array of mirrors designed to act as a single larger mirror; however, the SALT mirrors produce a spherical primary, rather
Southern African Large Telescope
Southern_African_Large_Telescope
Telescopes which utilize curved mirrors to form an image
is vacuum deposited onto the mirror, forming a highly reflective first surface mirror. Some telescopes use primary mirrors which are made differently.
Reflecting_telescope
Type of catadioptric telescope
spherical primary mirror and a Schmidt corrector plate to correct for spherical aberration. In this Cassegrain configuration the convex secondary mirror acts
Schmidt–Cassegrain_telescope
Infrared telescope mounted on a converted Boeing 747 SP (2010–2022)
diameter primary mirror, as was common with most large infrared telescopes. The optical system used a Cassegrain reflector design with a parabolic primary mirror
Stratospheric Observatory for Infrared Astronomy
Stratospheric_Observatory_for_Infrared_Astronomy
Combination of concave and convex mirrors
A Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas
Cassegrain_reflector
Object that reflects an image
A mirror, also known as a looking glass, is an object that reflects an image. Light that bounces off a mirror forms an image of whatever is in front of
Mirror
Final polishing of an optical surface
figuring is that used in reflecting telescope primary mirrors in a process of converting the smooth spherical mirror produced by earlier stages into the aspherical
Figuring
Technique used in optical systems
mirror or a liquid crystal array. Adaptive optics should not be confused with active optics, which work on a longer timescale to correct the primary mirror
Adaptive_optics
Specialized Cassegrain telescope
of the Cassegrain telescope that has a hyperbolic primary mirror and a hyperbolic secondary mirror designed to eliminate off-axis optical errors (coma)
Ritchey–Chrétien_telescope
Type of reflecting telescope
English scientist Sir Isaac Newton, using a concave primary mirror and a flat diagonal secondary mirror. Newton's first reflecting telescope was completed
Newtonian_telescope
Astronomical observatory in Chile
wide-field reflecting telescope with an 8.4-meter primary mirror. It uses a variant of three-mirror anastigmat to deliver sharp images over a 3.5-degree-diameter
Vera_C._Rubin_Observatory
Telescope whose mirror is a reflective liquid
assume a paraboloidal shape. This parabolic reflector can serve as the primary mirror of a reflecting telescope. The rotating liquid assumes the same surface
Liquid-mirror_telescope
Part of the Fred Lawrence Whipple Observatory
MMT (formerly Multiple Mirror Telescope), which has a primary mirror 6.5 m in diameter. The name comes from the six smaller mirrors originally used before
MMT_Observatory
NASA infrared space telescope
Telescope is based on an existing 2.4 m (7.9 ft) wide field of view primary mirror donated by the National Reconnaissance Office and will carry two scientific
Nancy Grace Roman Space Telescope
Nancy_Grace_Roman_Space_Telescope
Reflecting telescope design
fourth fold mirror without introducing vignetting. The James Webb Space Telescope is a three-mirror anastigmat featuring an ellipsoidal primary, hyperboloidal
Three-mirror_anastigmat
Astrophotographic telescope
spherical primary mirror, and an aspherical correcting lens, known as a Schmidt corrector plate, located at the center of curvature of the primary mirror. The
Schmidt_camera
Subsection of the James Webb Space Telescope
has a three-mirror anastigmat (TMA) design, with an effective f/20 focal ratio and focal length of 131.4 meters (431 ft). The primary mirror is a tiled
Optical_Telescope_Element
Element of a reflecting telescope which focuses light gathered by the primary mirror
secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope. Light gathered by the primary mirror is directed
Secondary_mirror
Telescope in the Atacama Desert, Chile
Chile. It consists of four individual telescopes, each equipped with a primary mirror that measures 8.2 metres (27 ft) in diameter. These optical telescopes
Very_Large_Telescope
British anthology television series
Black Mirror is a British anthology television series created by Charlie Brooker. Most episodes are speculative fiction, set in near-future dystopias containing
Black_Mirror
Astronomical observatory in Hawaii
the U.S. state of Hawaii. Both telescopes have 10 m (33 ft) aperture primary mirrors, and, when completed in 1993 (Keck I) and 1996 (Keck II), they were
W._M._Keck_Observatory
NASA space telescope for exoplanetology (2009–2018)
plate (lens) feeding a 1.4-meter (55 in) primary mirror—at the time of its launch this was the largest mirror on any telescope outside Earth orbit, though
Kepler_space_telescope
Declassification and donation to NASA of two identical space telescopes
NRO instrument's 2.4-meter (94 in) primary mirror is the same size and quality as the Hubble's. With double the mirror diameter of the original WFIRST design
2012 National Reconnaissance Office space telescope donation to NASA
2012_National_Reconnaissance_Office_space_telescope_donation_to_NASA
Optical system where refraction and reflection are combined
the end of the 19th century placed the catadioptric mirror beyond the focus of the refractor primary and added a third correcting/focusing lens to the system
Catadioptric_system
Optical correction instrument
to correct the spherical aberration of the Hubble Space Telescope's primary mirror, which incorrectly focused light upon the Faint Object Camera (FOC)
Corrective Optics Space Telescope Axial Replacement
Corrective_Optics_Space_Telescope_Axial_Replacement
Catadioptric telescope design
spherical primary mirror in conjunction with a negative meniscus lens as far back as 1936. His notes from that time on the function of Mangin mirrors, an early
Maksutov_telescope
20-100-m-aperture astronomical observatory
observatory featuring an optical telescope with an aperture for its primary mirror from 20 metres up to 100 metres across, when discussing reflecting telescopes
Extremely_large_telescope
Type of American spy satellite
of a computer controlled mirror polishing technique, which was subsequently also used for the polishing of the primary mirror of the Hubble Space Telescope
KH-11_KENNEN
Gregorian telescope in Graham County, Arizona
telescope is an f/1.0 honeycombed-construction borosilicate primary mirror. The VATT's mirror is unusually "fast" at f/1, which means that its focal distance
Vatican Advanced Technology Telescope
Vatican_Advanced_Technology_Telescope
Future observatory in the United States
design that would eventually become the TMT, consisting of a 492-segment primary mirror with nine times the power of the Keck Observatory. Due to its light-gathering
Thirty_Meter_Telescope
Telescope for observations with visible light
directly related to the diameter (or aperture) of its objective (the primary lens or mirror that collects and focuses the light), and its light-gathering power
Optical_telescope
falling out. The common usage of the word denotes the cell that holds the primary mirror (M1), however technically it could also be used to denote the support
Mirror_support_cell
American corporation focused on life science research
applied entirely to the secondary mirror and replaced existing instrumentation; the aberration of the primary mirror remained uncorrected. The company
PerkinElmer
Lines radiating from bright light sources in photographs
such as an isolated bright star reaching different quadrants of the primary mirror or lens is first passed through grilles at three different orientations
Diffraction_spike
The Modified Dall–Kirkham telescope uses an elliptical primary and spherical secondary mirror as in the conventional Dall-Kirkham configuration, but also
Modified Dall–Kirkham telescope
Modified_Dall–Kirkham_telescope
Telescope at Palomar Observatory in California, USA
Telescope was going to use a primary mirror of fused quartz manufactured by General Electric, but instead the primary mirror was cast in 1934 at Corning
Hale_Telescope
Telescope for optical astronomy
and saw first light with a single primary mirror on October 12, 2005, which viewed NGC 891. The second primary mirror was installed in January 2006 and
Large_Binocular_Telescope
A honeycomb mirror is a large mirror usually used as the primary mirror in astronomical reflecting telescopes whose face is supported by a ribbed structure
Honeycomb_mirror
Japanese telescope and observatory
cluster known in English as the Pleiades. It had the largest monolithic primary mirror in the world from its commissioning until the Large Binocular Telescope
Subaru_Telescope
Optical telescope at the Special Astrophysical Observatory in southern Russia
thermal mass of the primary mirror, the telescope as a whole, and the enormous dome. Thermal effects are so significant in the primary that it can tolerate
BTA-6
Scientific facility at Haleakala Observatory in Hawaii, US
the Sun in visible to near-infrared wavelengths and has a 4.24-meter primary mirror in an off-axis Gregorian configuration that provides a 4-meter clear
Daniel K. Inouye Solar Telescope
Daniel_K._Inouye_Solar_Telescope
Topics referred to by the same term
circuit Primary field, type of field in conformal field theory Primary mirror, principal light-gathering surface of a reflecting telescope Primary power
Primary
Type of catadioptric telescope
spherical primary mirror is combined with a Schmidt corrector plate, which corrects the spherical aberration and holds the secondary mirror. The resulting
Schmidt–Newtonian_telescope
Type of astronomy magnifier
Observatory Mirror Lab has been making mirrors for large Gregorian telescopes at least since 1985. In the Gregorian design, the primary mirror creates a
Gregorian_telescope
Web archive
today, but changed the primary mirror to archive.is in May 2015. It began to deprecate the archive.is domain in favor of other mirrors in January 2019. According
Archive.today
Lowell Observatory aperture telescope
The LDT uses a Ritchey–Chrétien design with an f/1.9 primary mirror. The 6700-pound primary mirror measures 4.3 m (170 in) in diameter yet only about 10 cm
Lowell_Discovery_Telescope
reflectivity of the speculum mirrors of that day, Herschel eliminated the small diagonal mirror from his design and tilted his primary mirror so he could view the
History_of_the_telescope
Type of neuron associated with empathy
activity consistent with that of mirror neurons has been found in the premotor cortex, the supplementary motor area, the primary somatosensory cortex, and the
Mirror_neuron
European space telescope
a third parabolic mirror to recollimate the beam. The telescope uses an oval 1.1 m × 0.7 m (3 ft 7 in × 2 ft 4 in) primary mirror; the imaging quality
ARIEL
German-British astronomer and composer (1738–1822)
Herschel eliminated the small diagonal mirror of a standard newtonian reflector from his design and tilted his primary mirror so he could view the formed image
William_Herschel
Beginnings of the infrared astronomical observatory
January 2022, while still in transit, mirror alignment began. The primary mirror segments and secondary mirror were moved away from their protective launch
Launch and commissioning of the James Webb Space Telescope
Launch_and_commissioning_of_the_James_Webb_Space_Telescope
a primary mirror that is less than 2 metres (80 in) in diameter.[citation needed] By amateur standards, a small telescope can have a primary mirror/aperture
Small_telescope
Optical test for curved mirrors
measure the shape of concave curved mirrors. It is commonly used by amateur telescope makers for figuring primary mirrors in reflecting telescopes. It uses
Foucault_knife-edge_test
Extremely durable glass-ceramic
and the 39 m Extremely Large Telescope. It also has been used for the primary mirror of SOFIA's airborne telescope. ASA (AstroSysteme Austria) also produces
Zerodur
segments of the primary mirror assembled. March 2016: cryogenic testing of instruments and mirrors completed. 3 March 2016: secondary mirror installed on
Timeline of the James Webb Space Telescope
Timeline_of_the_James_Webb_Space_Telescope
manufactured in the former Soviet Union and was used in the making of primary mirrors for the Russian Maksutov telescopes. It has a CTE of only 0 ± 1.5×10−7 °C−1
Sitall
Planned Chinese space telescope
development. The telescope will feature a 2-meter (6.6 foot) diameter primary mirror and is expected to have a field of view approximately 300 to 350 times
Xuntian
Type of off-axis reflecting telescope
secondary mirror, and therefore an obstruction-free light path. This is accomplished by tilting the primary mirror so that the secondary mirror does not
Schiefspiegler
First successful mirror telescope
The telescope he constructed used mirrors as the objective which bypass that problem. To create the primary mirror Newton used a custom composition of
Newton's_reflector
Tool for telescope alignment
whose primary mirror is marked in its center, such aids allow the user to adjust the position and tilt of both the secondary and the primary mirror. It
Cheshire_eyepiece
Type of catadioptric telescope
that uses a spherical primary mirror and a sub-aperture secondary corrector group composed of a small lens and a Mangin mirror. In the Klevtsov-Cassegrain
Klevtsov–Cassegrain_telescope
Reflecting telescope
borosilicate glass parabolic primary mirror with a focal length of 17+1⁄2 inches (44 cm). The telescope's secondary mirror was mounted on a flat optical
Astroscan
Type of telescope
Unlike the paraboloidal mirror used in the Newtonian telescope, the Houghton uses a spheroidal primary mirror. A spheroidal mirror is much easier to make
Lurie–Houghton_telescope
Observatory in Tucson, Arizona (US)
few facilities in the world that can cast and figure the very large primary mirrors used in telescopes built in the early 21st century. Steward Observatory
Steward_Observatory
Branch of physics that studies light
the larger the primary mirror, the more light collected, and the magnification is still equal to the focal length of the primary mirror divided by the
Optics
Type of telescope
off-axis telescope design consisting of a parabolic primary mirror and a large concave secondary mirror arranged so that the focal plane is at right angles
Crossed_Dragone
English reflecting telescope, built 1785–1789
Observatory House in Slough, England. It used a 48-inch (120 cm) diameter primary mirror with a 40-foot-long (12 m) focal length (hence its name "Forty-Foot")
40-foot_telescope
NASA infrared space telescope (2003–2020)
approximately 0.1 astronomical units per year (an "Earth-trailing" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and was
Spitzer_Space_Telescope
Process of enlarging the apparent size of something
closer to their eye. A telescope, which uses its large objective lens or primary mirror to create an image of a distant object and then allows the user to examine
Magnification
Telescope in the Atacama Desert, Chile
has two mirrors, the primary (M1) and a smaller secondary mirror (M2), which reflect light from the sky down to the OmegaCAM camera. Both mirrors are made
VLT_Survey_Telescope
equivalent combined aperture. Telescopes that cannot use their entire primary mirror at once (e.g. HET or LAMOST) are listed by their maximum effective aperture
List of largest optical reflecting telescopes
List_of_largest_optical_reflecting_telescopes
Star polygon
diffraction caused by the hexagonal shape of the mirror sections and the struts holding the secondary mirror. Used as a parol or star for the 2010 ABS-CBN
Octagram
aperture negative lens placed before a primary mirror designed to correct the optical aberrations of the mirror. Schmidt corrector plate: An aspheric-shaped
List of telescope parts and construction
List_of_telescope_parts_and_construction
Planned NASA space telescope to directly image and spectroscopically analyse exoplanets
Current mission concepts for the HWO include a 6–8-meter primary mirror; however, larger mirrors could be possible if launch-vehicle technology advances
Habitable_Worlds_Observatory
Catadioptric telescope design
elements, two lenses and a Mangin mirror (the element furthest from the primary mirror). Argunov systems only employ spherical surfaces and avoid the practical
Argunov–Cassegrain_telescope
Three-mirror telescope design
falls on a concave primary mirror, then is reflected towards a convex secondary mirror. A comparatively small tertiary flat mirror reflects the light
Nasmyth_telescope
Imaging instrument aboard the James Webb Space Telescope
18-section mirrors functioning as one. In other words, it is a camera and is also used to provide information to align the 18 segments of the primary mirror. It
NIRCam
NASA/ESA space telescope launched in 1990
that the primary mirror had been polished to the wrong shape. Although it was believed to be one of the most precisely figured optical mirrors ever made
Hubble_Space_Telescope
Solar telescope in the Canary Islands
GREGOR is a solar telescope, equipped with a 1.5-metre primary mirror, located at 2,390 m altitude at the Teide Observatory on Tenerife in the Canary Islands
GREGOR_Solar_Telescope
Mirror whose surface can be deformed
actuators compared to piston-segmented mirrors. This concept was used for fabrication of large segmented primary mirrors for the Keck telescopes, the James
Deformable_mirror
Type of radio telescope designed by American astrophysicist John D. Kraus
flat primary mirror reflects radio waves towards the spherical secondary mirror, which focuses it towards a mobile focal carriage. The primary tilts
Kraus-type_radio_telescope
Radio telescope in Hawaii, US
telescope is near the summit of Mauna Kea at 13,425 feet (4,092 m). Its primary mirror is 15 metres (16.4 yards) across: it is the largest single-dish telescope
James_Clerk_Maxwell_Telescope
SAFIR's primary mirror is large for a space-based telescope; for comparison, SAFIR's predecessor, the 2003 Spitzer Space Telescope, has a primary mirror only
SAFIR
Engineered materials company
in 2005, Brush would produce and deliver materials to be used in the primary mirror in NASA’s James Webb Space Telescope. In 1971, Brush made its first
Materion
Radio observatory in France
telescope of the Kraus-type design. The primary mirror at the north end of the installation is a planar mirror measuring 200 m in width and 40 m in height
Nançay_Radio_Observatory
Telescope in La Palma, Spain
(165 in) f/2.5 primary mirror made by Owens-Illinois from Cervit, a zero-expansion glass-ceramic material, and ground by Grubb Parsons. The mirror blank was
William_Herschel_Telescope
Gregory designs a reflecting telescope with paraboloid primary mirror and ellipsoid secondary mirror. Construction techniques at the time could not make
Timeline of telescope technology
Timeline_of_telescope_technology
telescopes for infrared astronomy are listed in terms of diameter of primary mirror. The infrared spectrum with its longer wavelength than visible light
List of largest infrared telescopes
List_of_largest_infrared_telescopes
Psychoanalytic concept
The mirror stage (French: stade du miroir) is a concept in the psychoanalytic theory of Jacques Lacan. The mirror stage is based on the belief that infants
Mirror_stage
American glass and ceramics manufacturer
for US crewed space vehicles, and supplied the glass blank for the primary mirror in the Hubble Space Telescope. In 1982, Corning launched Chameleon®
Corning_Inc.
Hypothetical life with reversed molecular chirality
Mirror-image life (also called mirror life) is a hypothetical form of life using mirror-reflected molecular building blocks. The successful creation of
Mirror-image_life
NASA satellite of the Explorer program
Module (UVIM). The OTA consists of a 75 cm (30 in)-diameter primary mirror in a three-mirror anastigmat configuration which will capture and redirect light
UVEX
Autofocus system camera product line
viewfinder. In live preview mode, the camera's primary reflex mirror flips up into a locked position so that the primary image sensor is exposed directly to light
Canon_EOS
Observatory
the commissioning of INO340, a home-grown optical telescope with a primary mirror of 3.4 m, making it by far the country's largest astronomical research
Iranian_National_Observatory
these segments are part of the three-mirror anastigmat design's primary element and don't serve as fold mirrors in the optical sense. Periscope lens also
Folded_optics
PRIMARY MIRROR
PRIMARY MIRROR
Girl/Female
Latin
Firstborn.
Boy/Male
Hindu, Indian, Marathi
The Primal God
Boy/Male
Muslim
Another name of God, Primary, First
Boy/Male
Indian, Sanskrit
The Primal Residue
Surname or Lastname
English
English : unexplained.Serbian : unexplained.
Boy/Male
English French
Servant of the priory.
Girl/Female
Hindu, Indian
The Primal Energy
Boy/Male
Indian, Sanskrit
The Primal Root
Boy/Male
Arabic
Secrecy; Privacy
Girl/Female
Hindu, Indian
The Primal Mother
Boy/Male
Arabic, Muslim
Antecedent; Preceding; Another Name for God; Primary; First; Former
Boy/Male
Indian
Another name of God, Primary, First
Boy/Male
Arabic
Secrecy; Privacy
Girl/Female
Australian, French, German, Italian, Latin, Swedish
First-born
Boy/Male
Tamil
The primal God
Girl/Female
Hindu, Indian, Traditional
The Primal Lakshmi
Girl/Female
Hindu
Love, Affection
Boy/Male
Indian, Sanskrit
The Primal Idol
Boy/Male
Bengali, Gujarati, Hindu, Indian, Jain, Kannada, Malayalam, Marathi, Punjabi, Sanskrit, Sikh, Telugu
The Best; Being Supreme; Primary; Perfect; Ultimate
Boy/Male
Hindu
The primal God
PRIMARY MIRROR
PRIMARY MIRROR
Boy/Male
Tamil
Sirinani | ஸீரீநாநீ
Female
Dutch
, bitter.
Surname or Lastname
English (Devon)
English (Devon) : from the rare Old English masculine personal name Mocca, which may be related to a Germanic stem mokk- ‘to accumulate’, ‘to be heaped up’, and hence may originally have been a nickname for a heavy, thickset person. Alternatively, it could be from Middle English mokke ‘trick’, ‘joke’, ‘jest’, ‘act of jeering’, a derivative of mokke(n) ‘to mock’, from Old French moquer.German : variant of Maag.German : nickname for a short, thickset man, Middle High German mocke.Dutch : nickname from Middle Dutch mocke ‘dirty or wanton woman’, ‘slut’, or from West Flemish mokke ‘fat child’.
Girl/Female
Indian, Telugu
Good Doer
Boy/Male
Hindu
Six faces
Girl/Female
Greek
From Helicon.
Boy/Male
Tamil
Attractive
Boy/Male
Hindu
Blue jewel
Boy/Male
Tamil
Yagnakaya | யாகà¯à®¨à®¾à®•à®¾à®¯à®¾Â
Acceptor of all sacred & sacrificial offerings
Boy/Male
Arabic, Hindu, Indian, Punjabi, Sikh
Eyes
PRIMARY MIRROR
PRIMARY MIRROR
PRIMARY MIRROR
PRIMARY MIRROR
PRIMARY MIRROR
adv.
In a primary manner; in the first place; in the first place; in the first intention; originally.
n.
A primary meeting; a caucus.
a.
Primitive; primary; original.
n.
The office, dignity, or position of a primate; primacy.
a.
First in order, as being preparatory to something higher; as, primary assemblies; primary schools.
pref.
Chief; primary; primordial.
a.
Worthy of the palm; palmy; preeminent; superior; principal; chief; as, palmary work.
pl.
of Prima donna
a.
First; primary; original; chief.
adv.
At first; primarily.
n.
That which stands first in order, rank, or importance; a chief matter.
n.
A primary planet; the brighter component of a double star. See under Planet.
a.
Of or pertaining to the urine; as, the urinary bladder; urinary excretions.
a.
First in dignity or importance; chief; principal; as, primary planets; a matter of primary importance.
a.
The office, rank, or character of a primate; the chief ecclesiastical station or dignity in a national church; the office or dignity of an archbishop; as, the primacy of England.
n.
One of the large feathers on the distal joint of a bird's wing. See Plumage, and Illust. of Bird.
a.
Illustrating, possessing, or characterized by, some quality or property in the first degree; having undergone the first stage of substitution or replacement.
n.
A kind of type, of which there are two species; one, called long primer, intermediate in size between bourgeois and small pica [see Long primer]; the other, called great primer, larger than pica.
pl.
of Primary
a.
First; original; primary.