laser(infrared) abosrbing film maybe?

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Originally Posted by languy99

From looking at the patent it allows about 70% light output while absorbing at least 35% infreared light. Does anyone know what percentage infrared veil absords?

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The 3m Prestige 70 tint (combined with normal window glass on buildings) passes through 69% of visible light and only 3% of IR energy. And it is readily available:

http://www.radardetector.net/forums/...tml#post242779

There is a difference between rejection and absorption of the IR light. The 3m film rejects the light, the will actually make it look like a mirror to the laser gun. While the new film I have found actually absorbs the light.

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Originally Posted by languy99

There is a difference between rejection and absorption of the IR light. The 3m film rejects the light, the will actually make it look like a mirror to the laser gun. While the new film I have found actually absorbs the light.

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rejection = reflection + absorption

that said, since headlight covers are always slanted, I wouldn't care even if they are mirrored

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Originally Posted by ahmadr

...headlight covers are always slanted...

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Not "always", but most of the time. Mustang light covers are as flat as a board. Surprising on a car built for speed.

''There is a difference between rejection and absorption of the IR light. The 3m film rejects the light, the will actually make it look like a mirror to the laser gun. While the new film I have found actually absorbs the light.''

I agree on that , the whole importance is the way the Ir
is eliminated , by absorbtion or rejection , the last
could be a worse cure. The ideal target from laser point of view
is a mirror.

Another point never discuss is the reflection
occuring at the interface air/plexiglass of the lens or film applied.
@ 900 nm the light particles are absorbed if the material
particles size match the light and transform this enrergy
input into heat .Also the chemical stucture will dictate
the reaction to ir : reject/absorb/let pass.

Military has those answers .:cool:

Who remember the 411 experiment/video ?

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Originally Posted by Stealth Stalker

Not "always", but most of the time. Mustang light covers are as flat as a board. Surprising on a car built for speed.

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Mustangs were built for speed? Someone should've passed that memo on to Ford. ;)

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Originally Posted by Stealth Stalker

Not "always", but most of the time. Mustang light covers are as flat as a board. Surprising on a car built for speed.

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That was the first application I was thinking of. A film application would really help those Stangs.

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Originally Posted by Eloi

Military has those answers .:cool:

Who remember the 411 experiment/video ?

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^ Why was that user, IIRC, banned? <---- genuine question.

Quote:

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Originally Posted by ahmadr

rejection = reflection + absorption

that said, since headlight covers are always slanted, I wouldn't care even if they are mirrored

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Actually you wold car if they reject the light, that means to the laser gun it looks like a mirror, perfect for getting your speed. Even with a good jammer (LI) it would still get your speed, even easier than before. The film absorbs the IR light and turns into heat, they even say it is normal for the film to feel warm. Same thing that they do for radar, they turn the microwaves into heat by the special paint they use. Well this film does the same thing for IR.

I wonder how much they would heat up with the headlights on.