Automobile high beam prevention system based on polarizing film

By applying a polarizing film on the car headlights and windshield, rotating the high beam light emitted from the opposite lane, and combining the intelligent adjustment module to automatically adjust the brightness and polarization angle, the glare problem during night driving is solved, significantly improving driving safety and field of view clarity.

CN119882121AInactive Publication Date: 2025-04-25张承远
View PDF 0 Cites 2 Cited by

Patent Information

Application Number
CN202510189261.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When driving at night, the glare problem caused by turning on the high beam of the vehicle towards the lane seriously affects the driver's vision clarity and ability to judge the road conditions ahead, and increases the risk of traffic accidents.

Method used

The automotive anti-high beam system based on polarization film is adopted. By setting a polarization film on the headlights and windshield, the polarization direction of light is accurately controlled, and the high beam light emitted from the lane is rotated to the direction intersected with the driver's line of sight, reducing the impact of glare, and combining the intelligent adjustment module to automatically adjust the headlight brightness and polarization angle.

Benefits of technology

Significantly reduce the interference of glare on the driver's line of sight, reduce the risk of traffic accidents caused by glare at night, and improve the driver's field of vision clarity and driving safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119882121A_ABST
    Figure CN119882121A_ABST
Patent Text Reader

Abstract

The invention relates to an automobile high beam prevention system based on a polarizing film, and aims to solve the problem of glare caused by turning on a high beam of a vehicle on an opposite lane during night driving. The system comprises a headlamp polarization assembly and a windshield polarization assembly. The headlamp polarization assembly is arranged in an automobile headlamp or on the surface of a headlamp lampshade, comprises a layer of polarization film and is used for rotating high beam light emitted from an opposite lane to the direction staggered with the sight line of a driver, and the glare influence is reduced. The windshield polarization assembly is arranged on a front windshield and a rear windshield of the automobile, comprises a layer of polarization film matched with the headlamp polarization assembly and is used for further filtering out residual glare rays and ensuring that a driver can clearly see the road condition in front. Through an innovative optical technology adjusting means, the safety and comfort of night driving are effectively improved, and a safer and more comfortable driving environment is provided for drivers and other road users.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to an automobile high beam protection system based on a polarizing film. Background Art

[0002] When driving at night, the glare caused by vehicles in the opposite lane turning on their high beams has always been a problem that troubles drivers. Glare not only seriously affects the driver's vision clarity and reduces his ability to judge the road conditions ahead, but may also cause traffic accidents, posing a serious threat to road traffic safety.

[0003] Traditional anti-glare measures, such as using sunshades and adjusting the angle of headlights, can alleviate the glare problem to a certain extent, but the effect is limited and often requires manual operation during driving, which increases the burden on drivers and safety hazards. Therefore, developing a more efficient and intelligent anti-high beam system has become an urgent need to improve the safety and comfort of night driving. Summary of the invention

[0004] In order to solve the problems of the prior art, the present invention provides an automobile high beam protection system based on a polarizing film. The polarizing film is applied to the automobile high beam protection system, and the interference of glare on the driver's vision can be effectively reduced by accurately controlling the polarization direction of light. At the same time, combined with intelligent technology, the headlight brightness and polarization angle can be automatically adjusted, which can further improve the adaptability and convenience of the system.

[0005] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a car high beam protection system based on a polarizing film, comprising:

[0006] Headlight polarization assembly: installed in the car headlight or on the surface of the headlight cover, it contains a layer of polarization film, which is used to rotate the high beam light from the opposite lane to the direction that intersects with the driver's line of sight, reducing the impact of glare;

[0007] Windshield polarization assembly: installed on the front and rear windshields of the car, it contains a layer of polarization film that matches the headlight polarization assembly to further filter out the remaining glare light and ensure that the driver can clearly see the road conditions ahead.

[0008] In this embodiment, by arranging polarizing films on the headlights and the windshield, when the headlights of the car are turned on, especially the high beam, the polarizing films in the headlight polarizing assembly will perform specific polarization processing on the emitted light. However, the main function here is not to change the light of the headlights of the car, but to target the high beam coming from the opposite lane.

[0009] When the high beam of the opposite lane shines on the polarized component of the headlight of the vehicle, the polarized film will rotate the polarization direction of this part of the light to the direction that intersects with the driver's line of sight. This is achieved through the special optical properties of the polarized film, which only allows light polarized in a specific direction to pass through, while rotating or blocking light polarized in other directions.

[0010] The polarizing film on the windshield polarizing assembly matches the polarizing film on the headlight polarizing assembly, meaning they have the same polarization direction selecting properties.

[0011] When the glare light rotated by the headlight polarization component hits the windshield polarization component, most of the glare light will be filtered out and cannot enter the driver's field of vision because the polarization direction of these lights does not match the selected direction of the polarization film.

[0012] At the same time, the windshield polarization component can further filter out other glare sources that may exist in the environment, such as strong light reflected from street lamps and billboards, ensuring that the driver can clearly see the road conditions ahead.

[0013] In a specific embodiment, the polarizing film is set to be inclined upward at 45 degrees to rotate the high beam light from the opposite lane to a direction perpendicular to the driver's line of sight to reduce the impact of glare.

[0014] In a specific embodiment, it further includes an intelligent adjustment module: including a light sensor and a controller, wherein the light sensor is used to obtain ambient light and further transmit data to the controller for processing, and the controller then automatically adjusts the headlight brightness and polarization angle to optimize the lighting effect.

[0015] In a specific embodiment, the design of the polarizing film of the windshield polarizing assembly needs to consider the balance between the clarity of the driving field of view and the anti-glare effect.

[0016] In a specific embodiment, a driving recorder polarization component is also included, which is arranged in front of the lens of the driving recorder and includes a layer of polarization film to reduce glare interference during nighttime shooting.

[0017] In a specific embodiment, it further includes glasses with polarized films for drivers to wear to reduce the impact of night glare.

[0018] A second aspect of a method for an automobile high beam protection system comprises the following steps:

[0019] Step 1: Start the car, and the headlight polarization assembly and windshield polarization assembly start working;

[0020] Step 2: When a vehicle in the opposite lane turns on its high beam, the polarizing film of the headlight polarization assembly rotates the high beam of the opposite lane to a direction perpendicular to the driver's line of sight;

[0021] Step 3: The polarizing film of the windshield polarizing assembly further filters out the remaining glare light, ensuring that the driver can clearly see the road ahead;

[0022] Step 4: If the system includes an intelligent adjustment module, the light sensor monitors the ambient light in real time, and the controller automatically adjusts the headlight brightness and polarization angle according to the light intensity.

[0023] The beneficial effects of the present invention are:

[0024] 1. Through the synergistic effect of the headlight polarization component and the windshield polarization component, the system can effectively rotate the high beam light from the opposite lane to the direction that intersects with the driver's line of sight, significantly reducing the interference of glare on the driver's line of sight, thereby greatly reducing the risk of traffic accidents caused by glare at night;

[0025] 2. The windshield polarization component further filters out the remaining glare light, ensuring that the driver can clearly see the road conditions ahead when driving at night, improving driving accuracy and safety. The setting of the driving recorder's polarization component effectively reduces the glare interference during night shooting, ensuring that the driving recorder can clearly record the situation ahead, and providing more reliable evidence for accident handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front structure of an automobile of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the back side of a car of the present invention.

[0028] Figure 3 It is a schematic diagram of the camera structure of the present invention.

[0029] Figures 1 to 3 Chinese: 1. Automobile; 2. Camera; 3. Polarizing film. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: Figures 1 to 3The illustrated automobile anti-high-beam system based on a polarizing film includes: a headlight polarizing component: arranged in the automobile headlight or on the surface of the headlight shade, comprising a layer of polarizing film, used to rotate the high-beam light from the opposite lane to a direction intersecting with the driver's line of sight, thereby reducing the effect of glare; a windshield polarizing component: arranged on the front and rear windshields of the automobile, comprising a layer of polarizing film matching the headlight polarizing component, used to further filter out the remaining glare light, ensuring that the driver can clearly see the road conditions ahead. The polarizing film is arranged to be inclined upward at 45°, and is used to rotate the high-beam light from the opposite lane to a direction perpendicular to the driver's line of sight, thereby reducing the effect of glare. The polarizing film design of the windshield polarizing component needs to consider the balance between the clarity of the driving field of vision and the anti-glare effect. It also includes a driving recorder polarizing component, which is arranged in front of the driving recorder's lens and comprises a layer of polarizing film, which is used to reduce glare interference during night shooting.

[0032] A method for an automobile anti-high-beam system comprises the following steps: step 1: starting the automobile, and the headlight polarization component and the windshield polarization component start working; step 2: when a vehicle in an opposite lane turns on its high-beam, the polarization film of the headlight polarization component rotates the high-beam light of the opposite lane to a direction perpendicular to the driver's line of sight; step 3: the polarization film of the windshield polarization component further filters out the remaining glare light to ensure that the driver can clearly see the road conditions ahead.

[0033] In this embodiment;

[0034] System composition and functions

[0035] Headlight polarization components:

[0036] Position: Installed inside the car headlight or on the surface of the headlight cover.

[0037] Core component: a carefully designed polarizing film with the polarization direction set at 45° upward.

[0038] Function: When the vehicle in the opposite lane uses high beam, the polarizing film can rotate the high beam light to a direction that intersects with the driver's line of sight (ideally perpendicular), thereby significantly reducing the possibility of glare entering the driver's eyes.

[0039] Windshield Polarization Kit:

[0040] Location: Installed on the front and rear windshields of the car.

[0041] Polarizing film design: matches the headlight polarizing component to ensure the two work together to further enhance the anti-glare effect.

[0042] Function: Further filter out the weak glare light that may still exist after being processed by the headlight polarization component, ensuring that the driver has a clear field of vision and can accurately judge the road conditions ahead.

[0043] Driving recorder polarization components:

[0044] Position: Set in front of the camera of the driving recorder.

[0045] Function: Reduce glare interference during night shooting, ensure that the dashcam can clearly record the situation ahead, and provide strong evidence for accident handling.

[0046] Working principle and operation process

[0047] After starting the car, the headlight polarization component and windshield polarization component automatically start working.

[0048] When it is detected that a vehicle in the opposite lane has turned on its high beam, the polarizing film of the headlight polarization assembly immediately takes effect to rotate the high beam light.

[0049] A windshield polarizing component further handles residual glare, ensuring the driver's view is not disturbed.

[0050] Significantly improve nighttime driving safety and reduce the risk of traffic accidents caused by glare.

[0051] Keep the driver's field of vision clear and improve driving comfort.

[0052] The polarization component of the dash cam ensures the quality of recording at night and provides additional protection for driving safety.

[0053] Embodiment 2: further includes an intelligent adjustment module: comprising a light sensor and a controller, wherein the light sensor is used to obtain ambient light, and further transmits data to the controller for processing, and the controller then automatically adjusts the headlight brightness and polarization angle to optimize the lighting effect.

[0054] A method for an automobile anti-high-beam system comprises the following steps: step 1: starting the automobile, and a headlight polarization component and a windshield polarization component start working; step 2: when a vehicle in an opposite lane turns on its high-beam, a polarization film of the headlight polarization component rotates the high-beam light of the opposite lane to a direction perpendicular to the driver's line of sight; step 3: the polarization film of the windshield polarization component further filters out the remaining glare light to ensure that the driver can clearly see the road conditions ahead; step 4: an intelligent adjustment module, in which a light sensor monitors the ambient light in real time, and a controller automatically adjusts the headlight brightness and polarization angle according to the light intensity.

[0055] In this embodiment:

[0056] Intelligent adjustment module

[0057] Light sensor: responsible for real-time monitoring of ambient light intensity, including natural light and artificial light sources (such as street lights and other vehicle lights).

[0058] Controller: Receives data from the light sensor and automatically adjusts the headlight brightness and polarization angle based on preset algorithms and logical judgments.

[0059] Workflow

[0060] After starting the car, the headlight polarization component, windshield polarization component and intelligent adjustment module start working at the same time.

[0061] When a vehicle in the opposite lane turns on its high beam, the headlight polarization component and the windshield polarization component operate according to the process of the first embodiment.

[0062] The intelligent adjustment module continuously monitors the ambient light and automatically adjusts the brightness of the headlights according to changes in light intensity to ensure that the lighting is sufficient but not overly glaring.

[0063] At the same time, the controller dynamically adjusts the polarization angle based on the data from the light sensor to optimize the anti-glare effect and lighting range.

[0064] Intelligent adjustment improves driving safety and comfort.

[0065] Automatically adapt to different lighting environments, reducing the trouble of manual adjustments for the driver.

[0066] Optimize lighting effects to improve clarity and safety of night driving.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car high beam protection system based on polarizing film, characterized in that: include: Headlight polarization assembly: installed in the car headlight or on the surface of the headlight cover, it contains a layer of polarization film, which is used to rotate the high beam light from the opposite lane to the direction that intersects with the driver's line of sight, reducing the impact of glare; Windshield polarization component: installed on the front and rear windshields of the car, it contains a layer of polarization film that matches the headlight polarization component to further filter out the remaining glare light and ensure that the driver can clearly see the road conditions ahead.

2. The automobile high beam protection system based on polarizing film according to claim 1, characterized in that: The polarizing film is set to be inclined upward at 45 degrees, and is used to rotate the high beam light from the opposite lane to a direction perpendicular to the driver's line of sight to reduce the impact of glare.

3. The automobile high beam protection system based on polarizing film according to claim 1, characterized in that: It further includes an intelligent adjustment module: including a light sensor and a controller, wherein the light sensor is used to obtain ambient light and further transmit the data to the controller for processing, and the controller then automatically adjusts the headlight brightness and polarization angle to optimize the lighting effect.

4. The automobile high beam protection system based on polarizing film according to claim 1, characterized in that: The design of the polarizing film of the windshield polarizing assembly needs to consider the balance between the clarity of the driving field of view and the anti-glare effect.

5. The automobile high beam protection system based on polarizing film according to claim 1, characterized in that: It also includes a driving recorder polarization component, which is arranged in front of the lens of the driving recorder and includes a layer of polarization film for reducing glare interference during night shooting.

6. The automobile high beam protection system based on polarizing film according to claim 1, characterized in that: Furthermore, there are glasses with polarized films for drivers to wear to reduce the impact of glare at night.

7. A method for using the automobile high beam protection system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Start the car, and the headlight polarization assembly and windshield polarization assembly start working; Step 2: When a vehicle in the opposite lane turns on its high beam, the polarizing film of the headlight polarization assembly rotates the high beam of the opposite lane to a direction perpendicular to the driver's line of sight; Step 3: The polarizing film of the windshield polarizing assembly further filters out the remaining glare light, ensuring that the driver can clearly see the road ahead; Step 4: If the system includes an intelligent adjustment module, the light sensor monitors the ambient light in real time, and the controller automatically adjusts the headlight brightness and polarization angle according to the light intensity.

Citation Information

Cited By

  • Intelligent camera capable of switching multiple scene modes

    CN120980332A

  • A multi-scene mode switching intelligent camera

    CN120980332B