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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

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

Grade:12th pass

1 Answers

Vikas TU
14149 Points
6 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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