All Problems

Photometry and Geometrical Optics

Problem 5.61

Two identical thick symmetrical biconvex lenses are put close together. The thickness of each lens equals the curvature radius of its surfaces, i.e. \(d=R=3.0 \mathrm{~cm} .\) Find the optical power of this system in air.

Reveal Answer
Φ=2(n21)/n2R=37D\Phi=2\left(n^{2}-1\right) / n^{2} R=37 \mathrm{D}