Eyeglasses are often coated with an anti-reflecting coating to reduce glare in the visible part of...

Eyeglasses are often coated with an anti-reflecting coating to reduce glare in the visible part of the spectrum. Consider a 95.0-nm-thick coating applied to the lens, where we wish to reduce the glare of the blue end of the spectrum with wavelengths near 450 nm.

a) If the coating’s index of refraction is smaller than that of the lens, what index of refraction for the anti-reflection coating is needed for the thinnest film possible?

b) If the coating’s index of refraction is greater than that of the lens, what index of refraction for the anti-reflection coating is desired for an m = 1 destructive interference scenario?

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genius_generous answered 2 years ago

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare. Does eye grease work? In one study, 16 student subjects took a test of sensitivity to contrast after 3 hours in bright sun, both with and without eye grease. This is a repeated measure design where each subject was measured under each condition. The differences in sensitivity (i.e. diff = with eye grease score – without eye grease score) are: 0.07 0.64 -0.12 -0.05 ...

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare. Does eye grease work? In one study, 16 student subjects took a test of sensitivity to contrast after three hours facing into bright sun, both with and without eye grease. (Greater sensitivity to contrast improves vision and glare reduces sensitivity to contrast.) This is a matched pairs design. Here are the differences in sensitivity, with eye grease minus without eye grease. 0.06 0.65...

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare. In one study, 16 student subjects took a test of sensitivity to contrast after three hours facing into bright sun, both with and without eye grease. This is a matched-pair design. Here are the differences in sensitivity, where the difference is defined as eye grease minus without eye grease: 0.07,0.64, -0.12, -0.05, -0.18, 0.14, -0.16, 0.03, 0.05, 0.02, 0.43, 0.24, -0.11, 0.28, 0.05, 0.29...

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Eyeglasses are often coated with an anti-reflecting coating to reduce glare in the visible part of...

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Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....

Athletes performing in bright sunlight often smear black eye grease under their eyes to reduce glare....