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Anti reflection coated optics reduce __________(a) Optical transmission losses(b) Reflection angle(c) Refraction(d) Intensity of star imageThis question was posed to me in a job interview.The doubt is from Stellar Sensor Design topic in chapter Celestial Navigation, Doppler and Altimeter Radars of Avionics

Answer» CORRECT option is (a) OPTICAL transmission losses

For explanation: For anti-reflection coated optics, the optical transmission losses may be 1% or 2% at each air to glass or glass to air optical control surface within the telescope, including windows or sensor covers or SURFACES. For uncoated optics, the loss per surface is about 4% to 5%.


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