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Light rays disperse through a plano-concave lens.


 (plā′nō-kŏn-kāv′, -kŏn′kāv′)
Flat on one side and concave on the other: a plano-concave lens.


(of a lens) having one side concave and the other side plane


(ˌpleɪ noʊ kɒnˈkeɪv, -ˈkɒn keɪv)

pertaining to or noting a lens that is plane on one side and concave on the other.
References in periodicals archive ?
005", depending upon configuration, Laser Research ZnSe and ZnS Optics can be supplied as plano-convex, plano-concave, and as wedged-windows in round, rectangle, and square shapes that can include steps, holes, and other special design features.
Tenders are invited for Supply of visible high reflectivity plano-concave mirrors
Experimenting with different lens types and spacings in Zemax, he ultimately settled on pairing a plano-concave lens with a double-convex element.
RMI's laser beam expanders are made with high precision plano-concave and plano-convex lenses - available in a wide range of materials.
d A plano-concave lens bonded to a plano-convex lens
Manufactured to specification, configurations can include balls, ultraflat windows and wave-plates, plano-concave and -convex lenses, wedges, wedged windows, squares, and nearly hemispherical domes.
2] Laser Optics feature zinc selenide positive focusing lenses in plano-convex, plano-concave, and meniscus configurations in 0.
CVI QuantaGlas(TM) singlets are available in plano-concave, plano-convex, bi-concave, and bi-convex configurations in either UV grade fused silica or BK7 glass.
The lens closest to the primary is plano-concave (negative), the other is plano-convex (positive).
I solved this problem by assembling the corrector lens from two elements, one plano-convex, and the other plano-concave.