Antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray
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Antireflection coatings can be used on the inner surfaces of eyeglasses to reduce the reflection of stray light into the eye, thus reducing eyestrain.
a. A 90-nm-thick coating is applied to the lens. What must be the coating's index of refraction to be most effective at \(480 \mathrm{~nm}\) ? Assume that the coating's index of refraction is less than that of the lens.
b. If the index of refraction of the coating is 1.38 , what thickness should the coating be so as to be most effective at \(480 \mathrm{~nm}\) ? The thinnest possible coating is best.
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College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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