2007-07-14 09:46:25 · 4 answers · asked by nasser a 2 in Science & Mathematics ➔ Physics
For a single layer antireflection coating the "condition" is to have a coating of the right index and thickness to cause the incoming light that reflects off of the coating to be exactly out of phase and of the same amplitude as the light that reflects off the substrate and subsequently transmits back through the coating. In this way, the two components of light leaving the lens destructively interfere. That is, nothing reflects. In general this can on be done for a single wavelength. However, in practice, reflection is at least suppressed over a broad range.
2007-07-14 11:06:18 · answer #1 · answered by Dr. R 7 · 1⤊ 0⤋
Several layers of intermediate index of refraction between that of air and that of the lense will make the surface less reflective.
2007-07-14 17:24:43 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The surface must be able to absorb light, like dark colours and not bright. Also known as black bodies.
2007-07-19 23:20:47 · answer #3 · answered by Gaz T 5 · 0⤊ 1⤋
less of intensity prevents reflecting lights
2007-07-15 06:10:33 · answer #4 · answered by adi 1 · 0⤊ 1⤋