Knowing Window Tint Visible Light Transmission

Monday, June 3rd, 2013 - Automotive

Knowing Window Tint Visible Light Transmission

twinqu | Whether for a vehicle, at ease or requisition application when referring to window tint film, one of the most front-page characteristics is how much light the tint allows to pass completed. Direction most applications, this is urgent when attempting to gauge how much security, privacy and protection from heat and harmful UV rays a tint offers. Pressure automotive applications, however irrefutable is especially critical considering a quantity of states obtain laws limiting how faint the tint culpability substitute on a vehicle ‘ s windows. Because a backwash, window tinting manufacturers retain created a technic for calculating how much light a tint allows to pass ended real. However, trained are a few things to consider when discussing the darkness of a window tint. Knowing Window Tint Visible Light Transmission

Knowing Window Tint Visible Light Transmission

Knowing Window Tint Visible Light Transmission

Regardless of the application, all window tint film is measured by the materials visible light transmission levels ( VLT ). Smartly put, the VLT value is the proportion of visible light the tint allows on ice from the exterior of a vehicle, den or homely to the interior. The lower the VLT rate, the darker the tint is and the bounteous face light indubitable blocks. A tint that has a VLT profit of 5 % indicates that the window film apart permits 5 % of the exterior light to pass terminated original, stretch a film with a 50 % VLT expense allows 50 % of the light from appearance to pass washed-up.

Rule addition, seeing tints are besides offered predominance a variance of colors when professionals are referring to a tint they typically name legitimate by the tint ‘ s color and VLT market price. For paradigm, a onyx colored tint with a VLT of 5 % is declared as charcoal 5 %. Likewise, a green colored tint film with a VLT of 50 % is called green 50 %.

While many might assume that the VLT of a tint is the only factor to consider when calculating the final VLT of installed window tint, there is one additional aspect that must be considered. Every piece of glass, regardless of the application, blocks a certain amount of light. As a result, glass also has its own VLT value, which must be accounted for in order to determine the installed tint ‘ s final VLT value. For example, if a state law indicated that the lowest legal VLT value for a tinted car window was 30 % and an individual were to install a tint with a 30 % VLT rating, the windows final VLT rating would actually fall below the legal limit because of the window ‘ s natural VLT value. Because of this, window tinting professionals use a simple formula to calculate the installed window tint ‘ s final VLT value: Read also, Used Golf Carts to Save the Money

V1 ( VLT value of glass ) x V2 ( VLT value of tint ) = V3 ( final VLT value )

Let ‘ s assume, for example, the legal limit for the window tint of a vehicle is 30 % and the vehicles glass has a VLT value of 75 %. In this case, since we already know the VLT value of the window and the final VLT value we want to achieve we simply need to rearrange the formula to calculate the proper tint to install as follows:

V3 ( final VLT value ) ÷ V1 ( VLT of glass ) = V2 ( VLT value of tint )

0. 30 ( 30 % ) ÷ 0. 75 ( 75 % ) =. 40 ( 40 % )

According to this formula, installing a window tint with a VLT value of 40 % will result in a final VLT value of 30 % as desired. Professional installers using this formula save their customers a significant amount of money not only in traffic tickets for illegally tinted windows, but also in the reinstallation of window tint which most traffic courts require when a driver receives a ticket for illegally tinted windows. Knowing Window Tint Visible Light Transmission

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