| concave |
a surface that curves in on itself, like the inside of a bowl concave lens: a lens that is thicker at the edges than at the center
출처: www.riverdeep.net/current/2002/01/010702_light_tg....
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|---|---|
| concave |
hollowed, arched, curved, or rounded inward like the inside of a bowl or the back surface of a spectacle or contact lens
출처: www.tedmontgomery.com/the_eye/glossary/C.html
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| concave |
(non-convex): A shape with the property that the line segment connecting any two interior points is not totally contained in the shape; Not convex
출처: images.rbs.org/appendices/d_glossary_geometric.sht...
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| concave |
Concave means going inside of something.
출처: www.promotega.org/uga05001/geometry_glossary.html
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| concave lens |
A lens thinner at its center than at the edges, for correcting myopia or short-sightedness.
출처: www.spectacleworld.co.za/eyecare04.htm
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