Window Tint Meter | Effect of Glass Transmittance

The transmittance of automotive film glass can be considered controlled. For example, the side backstop of the same material has the same sharpness, but the color depth is different. The transmittance will be greatly different. In order to save energy and protect the privacy of the car, the general car owner will choose to put a solar film on their car. Experience has found that some owners do not know enough about the role of the front windshield film. When sticking the film, only the side shields and the rear window are attached and the sun protection of the front shield of the car is ignored.

1. Light transmittance requirements of automotive film

In fact, not all films will hinder driving sight. The "Technical Conditions for Motor Vehicle Operation Safety" implemented on September 1, 2012 stipulates that "the visible light transmittance of the front windshield glass must not be less than 70% and all window glass is not allowed. Therefore, the front window film with a light transmittance of more than 70% and a visible light reflectance of less than 10% can be affixed to the front glass. It will not have a significant impact on the driving vision.
       The light transmittance is an important consideration parameter of the car film. The light transmittance of the car front block film can be measured using a window tint meter (transmittance meter). The split type window tint meter detects light transmission. At the same time, it can also measure the infrared transmittance and ultraviolet transmittance after car film. Infrared rays are the main source of heat in sunlight, the window tint meter can be used to detect the heat insulation and anti- UV radiation effect. 

2. Role of film glass and transmittance detection

(1)The role of film glass

Professional front barrier film can block the heat insulation from a large area from the front of the car, reduce the burning sensation of the sun and effectively reduce the temperature inside the car. At the same time, the high-quality front barrier film can block more than 99% of harmful ultraviolet rays, preventing the driver's skin and car interiors from being damaged by ultraviolet rays. At the same time, choosing a high-quality front film can reduce the glare during driving and create a good driving vision for the driver. More importantly, if you put a front screen on your car, if an accident occurs during the vehicle's operation, the professional front screen can also stick the broken glass pieces in place, thereby avoiding people in the car from being damaged by glass fragments. 
       Many people like to stick a dark solar film or a reflective solar film to prevent outsiders from seeing the inside of the car to protect the privacy. However, the visible light transmittance of dark solar films is very low. For example, those dyed films on the market have very low light transmittance. They are based on the principle of blocking the energy of visible light, which not only has limited heat insulation, but also does not block ultraviolet rays. It is a real "light-shielding film" and seriously affects driving safety. Therefore vehicles with these solar films will not pass the safety inspection.

(2) Use a window tint meter to detect the light transmittance of the laminated glass

Of all the windows, the solar heat that enters the car through the front glass is the largest. Therefore, when selecting the front glass, be sure to choose a high-quality automotive film that is both heat-insulating and light-transmitting. The transmittance of all car front screens is above 70%! After the car front screen is pasted or the owner considers changing the film for the car, the window tint meter can be used to measure its real data. 
       Linshang LS110 split type window tint meter is a professional instrument for testing the light transmittance of automotive film glass. Make the measurement of light transmittance more simple and convenient.
       Some owners have insufficient understanding of the front film functions, or have been misled by a small number of dealers, they mistakenly believe that the film of the front windshield is not necessary. Therefore, they only stick the film on the car body and give up the film of the front film. In fact, the front film is very necessary and the front film is also the main part that can best reflect the performance of explosion-proof, anti-ultraviolet, heat insulation and glare-proof provided by automotive films. As long as the correct selection of the special film that meets the technical standards of the front file, it will bring you a safer and more comfortable driving experience.