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Hi there,
How do you calculate the diameter and other parameters like center & edge thickness of a plano- concave lens?
Parameters which I do have with me are, focal length = 20mm, Radius of curvature = 14mm, Index of refraction = 0.3

Daskh , 8 Years ago
Grade 12th pass
anser 1 Answers
Vikas TU

Last Activity: 8 Years ago

the diameter and other parameters like center & edge thickness of a plano- concave lens 
can be caluclated as in the following manner:
 
Diameter of plano- concave lens is 28 mm . this can  calculate from the radius of the curvature.

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