Crossed lens

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(Opt.) a double-convex lens with one radius equal to six times the other.

See also: Lens

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
In the obliquely crossed lens problem, the sphere, cylinder, and axis of the equivalent lens were extracted (see numerical Example 2 and Figure 1) from a matrix [5,13] with a particular modus operandi that made use of the invariance of the trace and determinant of the power matrix similarity transform.