An optician wants to prescribe glasses to an office worker. Since the patient spends much of his time staring at computer screens, he would like his glasses to have an anti-reflective coating that primarily eliminates reflections of blue light (470nm wavelength). If the coating material has an index of refraction n coat = 1.32 and the glasses lens has an index of refraction nglass = 1.52, what is the thickness of the thinnest possible coating layer that would eliminate blue light reflections?

An optician wants to prescribe glasses to an office worker. Since the patient spends much of his time staring at computer screens, he would like his glasses to have an anti-reflective coating that primarily eliminates reflections of blue light (470nm wavelength). If the coating material has an index of refraction n coat = 1.32 and the glasses lens has an index of refraction nglass = 1.52, what is the thickness of the thinnest possible coating layer that would eliminate blue light reflections?