| convex lens |
A lens which is thicker in the center than at the edge, used to correct hyperopia or farsightedness. Prescriptions are in + dioptres.
Ãâó: www.spectacleworld.co.za/eyecare04.htm
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| convex |
Denotes a spherically shaped surface, curved outward.
Ãâó: www.zygo.com/glossary.htm
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| convex |
Curved away from the Observer, as seen from the Outside
Ãâó: www.buckminster.info/Glossary/Glossary-C.htm
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| convex spherical lens |
A lens formed of prisms with their bases together, which is, therefore, thick at the center and thin at the edge. This type of lens is used in hyperopia.
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| convex-concave rule |
var. concave-convex rule. A law of joint kinematics that states that if a convex joint surface moves on a stationary concave surface, the convex joint will slide in the direction opposite that of the angular moti
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