Red reflection film system filter plate and application thereof in anti-glare aspect of brake lamp and filter

Abstract

The invention relates to a red reflection film system filter plate, wherein a substrate of the filter plate is PC or PMMA, a plurality of layers of TiO2 coatings and SiO2 coatings are arranged on thesubstrate, or the substrate of the filter plate is CR-39, and a plurality of layers of MgF2 coatings and TiO2 coatings are arranged on the substrate. Vacuum ion source deposition assisted (IDA) process is adopted to optimize film system combination and precise control of film system design. The red light of 610nm-720nm in visible band is selectively reflected and the transmittance is reduced to about 20%. Human eyes feel comfortable and the ambient brightness is basically not affected, which facilitates driving safety. The invention also relates to an application of the red reflection film system filter plate in anti-glare aspect of a brake lamp, an anti-glare filter of the brake lamp with the red reflection film system filter plate is a pair of goggles or a vehicle-mounted device, and thegoggles are worn on eyes or the vehicle-mounted device is clamped on a shading plate of an automobile, so that the use is convenient to use. The filter plate has the advantages of simple structure, reasonable design and the like.

Description

Technical field [0001] The invention belongs to the technical field of special film filter plates, and specifically relates to a red reflective film filter plate and its application in anti-glare of brake lights and a filter. Background technique [0002] According to the latest information released by the Ministry of Public Security, the number of small family passenger cars in the country alone has reached 187 million, and the number of motor vehicle drivers nationwide has reached 407 million. With the rapid development of my country's economy, the number of cars is increasing day by day. The brake lights at the rear of the cars have generally adopted LED light sources with high brightness and long life. Brake lights are generally installed on both sides of the rear of the vehicle, using a red light source with strong penetrating power to warn the driver of the following vehicle, to inform the vehicle in front that braking measures have been taken to prevent rear-end collision....

AI Technical Summary

Problems solved by technology

At night, the ambient light becomes dark, and the brake light is extremely dazzling due to the high brightness of the LED light source. Some models will flash when they brake suddenly, and the brightness is even no less than that of the high beam. Naturally, the design purpose of the light factory is In order to play a stronger warning effect on the rear car, however, from the perspective of environmental protection and medicine, the problem caused by the glare of brake lights is a kind of colored light pollution. It will have adverse effects on health, and professional drivers who often drive late at night are more likely to cause damage to the visual nervous system to varying degrees. There are relevant reports in scientific journals at home and abroad

However, how to solve the problem of health and even safety hazards caused by the glare of brake lights to drivers has not yet found a targeted solution or example

In the prior art, there is a product called an anti-glare filter, the filter plate of which is a piece of yellow plexiglass, which cannot be explained from the optical principle to suppress red light, and the actual measurement results also prove that it has a good effect on suppressing red light. No effect

In addition, some drivers will wear daytime sunglasses as an expedient measure when they can't bear the glare of brake lights, but this is undoubtedly a dangerous behavior that is never advisable, because the dark lenses used in the sunglasses are designed to reduce the glare of the daytime. design, its transmittance in the visible light range decreases horizontally, see Image 6 , the actual observation through the dark lens, although the strong red light is also suppressed, but the already insufficient ambient light at night becomes seriously insufficient, and the safety risk is greatly increased

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