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16 terms
Photonics Dictionary
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meniscus lens x
meniscus lens
A meniscus lens is an optical lens that has one side that is concave (curved inward) and the other side that is convex (curved outward). It can be categorized into two types based on its optical...
convexo-concave lens
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meniscus lens
A meniscus lens is an optical lens that has one side that is concave (curved inward) and the other side that is convex (curved outward). It can be categorized into two types based on its optical...
divergent-meniscus lens
A lens with one surface convex and the other concave, the latter having the greater curvature. It also is known as a diverging meniscus lens.
double-meniscus lens
See periscopic lens; rapid rectilinear lens.
negative meniscus lens
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divergent-meniscus lens
A lens with one surface convex and the other concave, the latter having the greater curvature. It also is known as a diverging meniscus lens.
concavo-convex lens
A lens with one concave surface and one convex surface; synonymous with meniscus.
converging meniscus
A converging lens with one convex and one concave surface.
first-side meniscus
The process of grinding the concave surface of a single-vision spherical lens.
Gauss lens
A telescope objective with excellent spherochromatic correction, consisting of a meniscus crown and a meniscus flint, both convex to the long conjugate.
Maksutov corrector
A thick meniscus lens arranged concentric with the center of curvature of a spherical mirror to produce an image free of spherical aberration.
Mangin mirror
A double-surfaced catadioptric spherical mirror whose spherical first surface consists of a negative meniscus (concave) lens and second rear surface is a spherical mirror. This combination utilizes...
meniscus anastigmat
An anastigmatic lens with a thick meniscus construction that flattens the field and corrects chromatic and spherical aberration.
periscopic lens
Two simple meniscus lenses arranged symmetrically on either side of the aperture stop, providing reduced coma, lateral color and distortion.
rapid rectilinear lens
A double meniscus system in which two achromatized meniscus lenses are arranged symmetrically on either side of the aperture stop, reducing or eliminating distortion, coma and lateral color.
Sonnar lens
A photographic objective that uses the thick meniscus principle to obtain its power. It is designed to photograph small fields at large apertures.
supplementary lens
A meniscus that is often fitted before a camera lens to permit focusing on near objects.
Photonics Dictionary
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