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Lens Coating Thickness

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A camera manufacturer wishes to deposit a non-reflective coating onto a glass lens for a wavelength of 550 nm. The index of refraction of the coating material is 1.38 and that of the glass is 1.53. Find the smallest three possible thicknesses for the coating.

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Solution Summary

Lowest three values for the thin film coating thickness is found in this answer. I have shown each step very clearly so that the student can easily understand the solution. I have provided additional details regarding solving this type of problems in the future.

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Solution:

There are two interfaces that we need to pay attention to.
They are, air-coating interface and the coating - glass interface.

At the first interface light travels from lower to higher refractive index medium.
At the second interface also, light ...

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