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How does destructive interference in camera lenses help the photo?

April 26, 2017camera destructive help interference lenses photo

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How does destructive interference in camera lenses help the photo?

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In general, with cameras and other optical devices (telescopes, binoculars, etc.), you are trying to gather as much light as you can into the lens. Camera lenses with anti-reflective coatings have destructive interference for reflected light waves. Because energy is conserved, for a given incident wave, if reflected light is suppressed, then more light will be transmitted into the device.