An automatic response day and night anti-glare device

Abstract

The present invention provides an automatic response day and night anti-glare device, including a liquid crystal panel, a fixed component, a working circuit, a first front photoresistor, a first rear photoresistor, a second front photoresistor and a photosensitive switch K; Both the front photoresistor and the photosensitive switch K are arranged on the front side of the liquid crystal panel for detecting the oncoming light intensity of the vehicle; the first rear photoresistor is arranged on the back side of the liquid crystal panel (2) for Detecting the head-on light intensity after being attenuated by the liquid crystal panel; the working circuit includes a daytime working circuit and a nighttime working circuit, and the working circuit is set to activate the working circuit according to the ambient light intensity sensed by the photosensitive switch K Daytime work circuit or night work circuit. The device has a fast response speed, a high degree of automation, and can function day and night. The structure is simple, it not only blocks the strong light, but also avoids the safety hazard caused by excessive shading, and can automatically adjust the height of the LCD panel according to the driver's body.

Description

technical field [0001] The invention belongs to the field of safe driving of automobiles, and in particular relates to a device for preventing drivers of automobiles from being dazzled by strong light ahead. Background technique [0002] In the prior art, the windshield film is used to prevent the driver from being dazzled by the strong light ahead, and a transmissive liquid crystal light shield is installed in front of the driver's eyes. Among them, there are patent documents CN2836048Y, CN201338523Y, and CN202944179U for using a transmissive liquid crystal light shield. While shading, the light received by the driver is significantly dimmed, which may bring safety hazards. Document CN201338523Y sets the human eye tracking camera to make the system too complicated and the cost is high. Document CN202944179U mentions that the relative position of the preset driver's eyes and the liquid crystal glass unit is cumbersome to adjust. This setting method in this case may become a...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned technical problems, the present invention proposes a technology to control the vehicle to automatically turn on the high beam or supplementary light to enhance the ambient light. With low-cost and high-reliability technical means, it effectively overcomes the problem of the automobile liquid crystal visor while shading. , Under certain environmental conditions, the light received by the driver is significantly dimmed, which brings safety hazards

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