concave lens

, convex lens - A concave lens is thinner at the center; a convex lens is thicker at the center.

See also related terms for thicker.

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Noun

concave lens - a lens such that a parallel beam of light passing through it is caused to diverge or spread out

lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images

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References in periodicals archive

Reinverting operating lens systems can be easily used when changing from a plano and/or concave lens to a wide field indirect lens.

Operating Lens Systems Market with Current Trends Analysis, 2018-2026

He was a spectacle maker from Middleburg in Zeeland and had discovered that a convex lens and a concave lens could be combined to produce a magnified image of a distant object a simple telescope.

Past in Perspective

Only one embossing step is required in which a concave lens array pattern is directly fabricated onto the polymer substrate.

Rapid Fabrication of Various Molds for Replication of Polymer Lens Arrays

The Santilli Telescope[TM] designed by Thunder Energy is the only existing telescope which can detect anti-matter light in deep space through its special concave lens.

Small Cap Digital Initiates Coverage on Thunder Energies Corporation (TNRG)

In a Galilean system, the eyepiece is a concave lens and the objective lens is convex.

Bring back the telescopes

Substituting a concave lens for the ocular made the image appear right-side up, but reduced magnification.

Scope innards: how today's riflescopes work and are constructed

1 PC concave lens configuration [12]--This approach utilizes the negative refraction concept in PC concave lens so that the larger size beam width can be focused on to a waveguide device with the sub-wavelength focusing.

Spatial beam compression and effective beam injection using triangular gradient index profile photonic crystals