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plano-concave
[ pley-noh-kon-keyv, -kon-keyv ]
adjective
- pertaining to or noting a lens that is plane on one side and concave on the other.
plano-concave
/ ˌpleɪnəʊˈkɒnkeɪv /
adjective
- (of a lens) having one side concave and the other side plane
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Word History and Origins
Origin of plano-concave1
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Example Sentences
The achromatic lens consists of a double convex lens of crown glass combined with a plano-concave lens of flint glass.
And the correction is produced by the same plano-concave lens as that which corrects the spherical aberration.
The chromatic combination consists of a convex lens of crown backed by a concave, or plano-concave, lens of flint.
If one of the radii becomes infinite, the lens is plano-concave (fig. 9, 5).
I have made another only with a plano concave, without any kind of reflection, divers also by means of reflection.
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