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negative-meniscus lens

См. также в других словарях:

  • negative meniscus — a convexoconcave lens …   Medical dictionary

  • Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra …   Wikipedia

  • Meniscus corrector — Albert Bouwers 1941 catadioptric telescope with a concentric meniscus corrector A meniscus corrector is a negative meniscus lens that is used to correct spherical aberration in image forming optical systems such as catadioptric telescopes. They… …   Wikipedia

  • meniscus lens negative — convexoconcave l …   Medical dictionary

  • Double-Gauss lens — The double Gauss design with optical ray traces The double Gauss lens is a compound lens used mostly in camera lenses that reduces optical aberrations over a large focal plane. Contents 1 Design …   Wikipedia

  • Gauss lens — The Gauss lens consists of two lenses; in its most basic form, a positive meniscus lens on the object side and a negative meniscus lens on the image side. The power of the positive element predominates, but the negative element corrects for… …   Wikipedia

  • Meniscus — The word meniscus comes from the Greek and refers to a crescent shaped structure. Today a meniscus is something that is shaped like a crescent moon or a croissant pastry. A meniscus can be an anatomic feature. For example, the medial meniscus of… …   Medical dictionary

  • convexoconcave lens — a lens that has one convex and one concave surface; the convex surface is of greater curvature than the concave. Called also periscopic concave l., diverging meniscus l., and negative meniscus l …   Medical dictionary

  • Large format lens — Large format lenses are photographic optics that provide an image circle large enough to cover large format film or plates. Large format lenses are typically used in large format cameras and view cameras.Photographic optics generally project a… …   Wikipedia

  • Maksutov telescope — A 150mm aperture Maksutov Cassegrain telescope. The Maksutov is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly spherically… …   Wikipedia

  • Mangin mirror — Diagram of a Mangin mirror. In optics, a Mangin mirror is a negative meniscus lens with the reflective surface on the rear side of the glass forming a curved mirror that reflects light without spherical aberration. This reflector was invented in… …   Wikipedia

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