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Chromatic aberration
... can be further minimized by using an achromatic doublet or achromat in which two materials with ... to have differing focal lengths. For an achromatic doublet, visible wavelengths have approximately the same focal length. For a doublet consisting of two thin lenses in ...
http://en.wikipedia.org/wiki/Chromatic_aberration - 6k - Cached - Similar pages

Anyone who's bored can remove the links on here to existing article (not just redirect pages). I only want the reds and redirects.
... absorption coefficient]] #[[acceleration operator]] #[[accretion disk]] #[[achromat]] #[[achromatic lens]] #[[acoustic fluidization]] #[[acoustic radiation]] #[[acoustooptical tunable ... thermomechanical effect]] #[[thevenin equivalent circu...]] #[[thick lens doublet]] #[[thick lens formula]] #[[thin film]] #[[thin lens doublet]] #[[thin lens formula]] #[[third law of thermodynami ...
http://en.wikipedia.org/wiki/User:Vicarious/silly - 103k - Cached - Similar pages

User talk:Salsb/Missing physics
... absorption coefficient acceleration operator accretion disk achromat achromatic lens acoustic fluidization acoustic radiation acoustooptical tunable ... thermomechanical effect thevenin equivalent circu... thick lens doublet thick lens formula thin film thin lens doublet thin lens formula third law of thermodynami ...
http://en.wikipedia.org/wiki/User_talk:Salsb/Missing_physics - 98k - Cached - Similar pages

Eyepiece
... Ramsden) Carl Kellner designed this first modern achromatic eyepiece in 1850. Kellner eyepieces are a 3-lens design. An achromatic doublet is used in place of the eye ...
http://en.wikipedia.org/wiki/Eyepiece - 44k - Cached - Similar pages

Borescope
... of 3 basic types, Hopkins rod lenses, achromatic doublets and gradient index rod lenses. For large diameter borescopes, the achromatic doublet relays work quite well, but as the ...
http://en.wikipedia.org/wiki/Borescope - 6k - Cached - Similar pages

Zeiss Tessar
... by replacing the rear element with cemented achromatic doublet as commonly believed. In fact, in 1890Paul ... elements of Unar back into a cemented doublet will improve the performance of Zeiss Unar ...
http://en.wikipedia.org/wiki/Zeiss_Tessar - 5k - Cached - Similar pages

List of astronomical topics
... universe Accretion disc Accretion disk Achernar Achondrite Achromatic doublet Achromatic lens Acrux Active Galactic Nuclei Active galaxy ...
http://en.wikipedia.org/wiki/List_of_astronomical_topics - 93k - Cached - Similar pages

Anastigmatic optical system   (translated from Italian)
... Carl Zeiss that towards 1890 , coupling one doublet (disc of a valve brace) achromatic of previous type with one doublet new they obtained a objective anastigmatic, that ...
http://it.wikipedia.org/wiki/Sistema_ottico_anastigmatico - 2k - Cached (Italian) - Wikipedia (Italian) - Similar pages

Telescope   (translated from French)
... lens of Barlow must consist of a doublet or achromatic triplet for not altèrer the image and ...
http://fr.wikipedia.org/wiki/Télescope - 28k - Cached (French) - Wikipedia (French) - Similar pages

Depth of field adapter
... s choice. The macro lens, preferably an achromatic doublet (to minimize chromatic aberration), is usually attached ...
http://en.wikipedia.org/wiki/Depth_of_field_adapter - 13k - Cached - Similar pages

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