Achromatic lens (redirect from Achromat)
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to...
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Chromatic aberration (redirect from Achromatism)
wavelengths are), and an achromat made with sufficiently low dispersion glass can yield significantly better correction than an achromat made with more conventional...
21 KB (2,505 words) - 05:55, 16 August 2024
correction of chromatic and spherical aberration than the much more common achromat lenses. The prefix apo- comes from the Greek preposition ἀπό-, meaning...
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Chasman–Green lattice (redirect from Double bend achromat lattice)
The Chasman–Green lattice, also known as a double bend achromat lattice (DBA lattice), is a special periodic arrangement of magnets designed by Renate...
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Superachromat (redirect from Super achromat)
costly fluorite glasses and to very tight tolerances. Photographic lens Achromat Apochromat Herzberger, M., and N. McClure, The design of superachromatic...
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versions of the Series III were sold as the Vanity Kodak.: 179 Kodak Achromat f/11: 179 Kodak Anastigmat f/8 Kodak Kodar f/7.9: 179 Kodak Anastigmat...
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Some famous discoveries using achromats are the planet Neptune and the Moons of Mars.[citation needed] The long achromats, despite having smaller aperture...
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38 cm aperture f/90 achromat forms a 34 cm diameter solar image at the focal plane. The telescope has an option to mount a 20 cm achromat, which provides...
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active absorption approach for low frequency sound reproduction Double bend achromat lattice, a magnetic lattice more commonly known as Chasman–Green lattice...
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Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
98 KB (11,979 words) - 10:02, 12 September 2024
age.[citation needed] If the light level during testing is optimized, achromats may achieve corrected visual acuity of 20/100 to 20/150 at lower light...
29 KB (3,222 words) - 18:49, 15 September 2024
Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
89 KB (9,093 words) - 13:05, 11 September 2024
Eyepiece (section Kellner or "Achromat")
the aberration by using multiple elements of different types of glass. Achromats are lens groups that bring two different wavelengths of light to the same...
47 KB (6,470 words) - 04:52, 11 May 2024
This word was first used by Robert Blair to characterize a superior achromatism, and, subsequently, by many writers to denote freedom from spherical...
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1900–1986 Intro price $1 (equivalent to $37 in 2023) Lens Lens Meniscus Achromat lens Sensor/medium Film format Eastman No. 117 rollfilm Film size 2 1/4-inch...
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Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
64 KB (6,691 words) - 22:09, 6 September 2024
http://www.achromatopsia.info/red-contact-lenses/ Red contact lenses for achromats Swarbrick, HA; Nguyen, P; Nguyen, T; Pham, P (2001). "The ChromaGen contact...
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Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
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61 cm (24") achromat Arizona, USA 1896 Halstead Observatory 58.4 cm (23") achromat Princeton, USA 1881 Chamberlin Observatory 50 cm (20") achromat Colorado...
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that the object-glasses of telescopes must forever remain imperfect, achromatism and refraction being incompatible. This inference was proved by Dollond...
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Smartphone Film Scanner; and several lenses such as the Daguerreotype Achromat lens collection for analogue and digital SLR cameras with Canon EF, Nikon...
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Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
40 KB (4,925 words) - 12:03, 9 September 2024
Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
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camera lenses Wollaston Meniscus lens Chevalier Achromat Meniscus "Landscape" lens Because the Achromat Landscape lens was quite slow, the French Society...
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reflector – glass Paris, France 1875–1943 Yerkes Observatory 102 cm (40″) achromat Williams Bay, Wisconsin, USA 1897 Meudon Observatory 1m 100 cm (39.4″)...
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Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
21 KB (2,394 words) - 15:12, 19 August 2024
around the image. It can be minimised by using an achromatic doublet (or achromat) in which two materials with differing dispersion are bonded together to...
66 KB (7,946 words) - 23:02, 17 September 2024
Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
24 KB (2,863 words) - 08:04, 18 May 2024
usually involves a combination of two or three aperture sized lenses (see achromat and apochromat for more details). The cost of such systems therefore scales...
33 KB (3,918 words) - 17:54, 3 September 2024
Liquidus temperature sol–gel technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical...
20 KB (2,334 words) - 00:27, 5 September 2024