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| Re: Best window tint online to cut our infrared and uv |
Subject: Re: Best window tint online to cut our infrared and uv
by D on 2019/1/16 0:56:41
Thank you nak3d we wont feel so naked :)
There are alot of parents looking for solutions
in the US and pretty much everywhere but most
dont know where to look. This is very useful in
that the ratings and materials are now designed
to let microwaves in our cars making way for the
self driving cars of the ageing populous that are
sold tech/products to not use their bodies/brains
just for reference
Metallized film, like dyed film, keeps heat away from interior space by reflecting it away; in the case of metallized film, this is done by very small metallic particles – invisible to the eye – embedded in the film. This metallic content strengthens the window as well; in the case of a vehicle, the window will be that much more shatter-resistant when metallized film is used. Metallized window-tinting film creates a shiny appearance from the outside. It is more resistant to scratches than dyed film. When used in a vehicle, however, one drawback of metallized film is the fact that its metallic content has a tendency to interfere with cell phone and GPS transmission, not to mention radio reception.
Polarized using wires or Polarizer grids
For waves with electric fields perpendicular to the wires, the electrons cannot move very far across the width of each wire. Therefore, little energy is reflected and the incident wave is able to pass through the grid. In this case the grid behaves like a dielectric material.
Overall, this causes the transmitted wave to be linearly polarized with an electric field that is completely perpendicular to the wires. The hypothesis that the waves "slip through" the gaps between the wires is incorrect.[8]
For practical purposes, the separation between wires must be less than the wavelength of the incident radiation. In addition, the width of each wires should be small compared to the spacing between wires. Therefore, it is relatively easy to construct wire-grid polarizers for microwaves, far-infrared, and mid-infrared radiation. In addition, advanced lithographic techniques can also build very tight pitch metallic grids, allowing for the polarization of visible light to a useful degree. Since the degree of polarization depends little on wavelength and angle of incidence, they are used for broad-band applications such as projection.
Analytical solutions using rigorous coupled-wave analysis for wire grid polarizers have shown that for electric field components perpendicular to the wires, the medium behaves like a dielectric, and for electric field components parallel to the wires, the medium behaves like a metal (reflective).[9]
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