An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder. In photography...

individuals, whose lenses have a thick center. An atoric lens design refers to a lens with a more complex aspheric lens design. An atoric lens design can address...

Aspherical may refer to: Aspherical space, a concept in topology Aspherical lens, a type of lens assembly used in photography which contains an aspheric...

combining two or three lens elements. A single-element aplanatic lens is an aspheric lens whose surfaces are surfaces of revolution of a cartesian oval....

lens, used for very high negative (myopic) corrections. More aesthetic aspheric lens designs are sometimes fitted. A film made of cylindrical lenses molded...

atoric lens (literally, non-toric lens). They are related to toric lenses in the same way that aspheric lenses are related to spherical lenses. This is...

anamorphic lenses. Aspheric lenses have at least one surface that is neither spherical nor cylindrical. The more complicated shapes allow such lenses to form...

manufacturing of strongly aspherical lens elements which are difficult or impossible to manufacture in glass, and which simplify or improve lens manufacturing and...

Prime aspheric lenses for a 2.39:1 aspect ratio. This was chosen to be a visual balance between Alien, which was shot using anamorphic lenses in a 2...

manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance...

Montreal". This was based on an arrangement of aspherical surfaces. The Carl Zeiss AG & Varilux lenses were the first PAL of modern design. Bernard Maitenaz...

single aspheric lens. "Positive" spherical aberration means rays near the outer edge of a lens are bent more than would be predicted for an ideal lens. "Negative"...

beads and lenses from rock crystal, with unworked pieces of crystal coexisting with partially finished beads and lenses. The lenses are bi-aspheric and two...

websites. U+1F50E is a right-pointing version: 🔎. Aspheric lens Binoculars Burning glass – Convex lens for fire making Dome magnifier Glasses – Form of...

are the simplest. Contact lenses can provide a wider field of vision and fewer artifacts than even double aspheric lenses. Refractive surgery aims to...

would generate chromatic aberration, and spherical aberration if the lens is not aspheric. More common configurations use three or more elements for achromatic...

camera), the film plane is curved to reduce the impact of aberrations. Doublet (lens) Aspheric lens Operation of Simple Lens - University of Edinburgh v t e...

diffractive optics (DO) and, particularly for L-series lenses, fluorite and aspherical lens elements. Its large diameter and relatively short flange...

began to manufacture lenses in a variety of SLR manufacturers' lens mounts. In 1991, it started to produce glass molded aspheric lenses, and in 1996 plastic...

components are an easy-to-make spherical primary mirror, and an aspherical correcting lens, known as a Schmidt corrector plate, located at the center of...

rectilinear aspheric SLR lens; for FD mount Canon SLRs, and the Asahi SMC Takumar 15mm f/3.5 (Japan/West Germany) of 1975 was the first rectilinear aspheric wide...

curved aspheric lens (now called the "Schmidt corrector plate") at the same center of curvature as the apertured diaphragm. This aspheric lens has a complex...

models, as well as featuring optics of higher quality, with many lenses containing aspherically ground, fluorite or ultra-low dispersion glass elements. Their...

lenses with fewer elements and lower size can be achieved by using aspheric lenses in which the curved surfaces are not spherical, giving more degrees...

meaning a 5-element lens (see pre-autofocus designations above). Aspherical — Aspheric lens elements. Also Hybrid used: Thin molded aspheric elements coupled...

first lens to feature an aspherical element 6 mm f/5.6 (1969), the first fisheye to feature a 220° field of view; the patent accompanying this lens includes...

extremes of lens design: wide apertures and extreme focal lengths. Aspherical surfaces improved performance of wide-angle and standard lenses at very wide...

Optical surfaces with non-spherical profiles, such as the surfaces of aspheric lenses, are typically designed such that their sag is described by the equation...

of a spherical lens and the distance from its center. It is compensated by designing a multi-lens system or by using an aspheric lens. Chromatic aberration...

and wide f/1.9 lens aperture for available-light photography. The lens, a newly designed, four-element lens incorporating one aspheric-shaped element...