Variable-light driving light filter

Abstract

The utility model relates to a variable light driving filter, which comprises a linear polarization plate and a linear polarizer + 1 / 4 wave plate composite plate, the linear polarization plate is overlapped with the linear polarizer + 1 / 4 wave plate composite plate in plane, the linear polarization plate is arranged at the lower part, the linear polarizer + 1 / 4 wave plate composite plate is arranged at the upper part, and the wave plate surface is upward. According to the utility model, due to the flexible light changing function of the light filter, the most comfortable illumination intensity can be provided for a driver, and white light reflection on the surfaces of objects such as road surfaces, buildings, various traffic facilities, passing vehicles and the like in front of a driving vehicle can be effectively removed due to the presetting of the polarization direction; under the states of luminous flux control and reflected light removal, the visual fatigue feeling of a driver can be relieved to a great extent, so that the driving safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle light filters, specifically a variable light vehicle light filter. Background Technology

[0002] Motor vehicles inevitably encounter various strong light interferences on the driver's vision while driving on the road. The most common examples are strong oncoming sunlight, reflected light from building curtain wall glass, high beams at night, auxiliary lighting of monitoring systems, and brake glare. Strong light interference poses a significant threat to driving safety. Current technologies are limited to using ordinary sunshades or wearing sunglasses. However, traditional methods cannot cope with complex lighting environments. Therefore, a driving filter that can easily adjust the light flux, fully adapt to individual visual differences, and reduce visual fatigue is urgently needed for development. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a variable light driving filter to solve the problem that motor vehicles inevitably encounter various strong light interferences on the driver's vision while driving on the road. The most common examples are strong sunlight from the opposite direction, reflected light from building curtain wall glass, high beams at night, auxiliary lighting of monitoring systems, and brake glare, etc. Strong light interference poses a significant threat to driving safety. Existing technologies are limited to using ordinary sunshades or wearing sunglasses, but traditional methods cannot solve the technical problems of complex lighting environments.

[0004] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a variable light vehicle filter is designed, including a linear polarizing plate and a linear polarizing plate + 1 / 4 wave plate composite plate. The linear polarizing plate and the linear polarizing plate + 1 / 4 wave plate composite plate have overlapping planes. The linear polarizing plate is placed below, and the linear polarizing plate + 1 / 4 wave plate composite plate is placed above with the wave plate facing upward.

[0005] Preferably, the linear polarizing plate is equipped with a magnetic cap and a base at its upper and lower ends, respectively.

[0006] Preferably, the linear polarizer + 1 / 4 waveplate composite plate is rotatably engaged between the magnetic cap and the base.

[0007] Preferably, a dimming knob is fixed at the front end of the linear polarizer + 1 / 4 waveplate composite plate.

[0008] Preferably, the top of the magnetic cap is magnetically attached to a hanging bracket, which is suspended from the surface of the light shield inside the vehicle.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. Thanks to the flexible light-changing function of the filter, this utility model can provide the driver with the most comfortable light intensity. At the same time, due to the preset polarization direction, the white light reflection from the surfaces of objects in front of the vehicle, including roads, buildings, various traffic facilities and oncoming vehicles, is effectively removed. Under the state of light flux control and reflected light removal, the driver can greatly reduce visual fatigue, thereby improving driving safety. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the linear polarizer + 1 / 4 waveplate composite plate structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the linear polarizing plate structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the magnetic cap structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the base structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the clamping bracket structure of this utility model.

[0017] In the diagram: 1. Linear polarizing plate; 2. Composite plate of linear polarizing plate and 1 / 4 wave plate; 3. Dimming knob; 4. Magnetic cap; 5. Base; 6. Hanging bracket. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Example 1: A variable light vehicle filter, see [link / reference] Figures 1 to 6 The filter includes a linear polarizer 1 and a linear polarizer + 1 / 4 waveplate composite plate 2. The linear polarizer 1 and the linear polarizer + 1 / 4 waveplate composite plate 2 are aligned in plane, with the linear polarizer 1 positioned below and the linear polarizer + 1 / 4 waveplate composite plate 2 positioned above with the waveplate facing upwards. Since the polarizer is a fixed component, its polarization direction remains unchanged after being preset. After moving the dimming knob 3, the linear polarizer + 1 / 4 waveplate composite plate 2 can rotate clockwise or counterclockwise along the circumference. By rotating, the angle between the two polarization directions between the polarizer and the linear polarizer + 1 / 4 waveplate composite plate 2 is changed, thereby changing the luminous flux of the filter and achieving the purpose of light modulation.

[0020] For details, see Figure 1The linear polarizing plate 1 is equipped with a magnetic cap 4 and a base 5 at its upper and lower ends, respectively. The filter is connected to the hanging bracket 6 suspended on the light shield inside the vehicle by the magnetic head of the magnetic cap 4. The light intensity of the filter window can be easily adjusted to the optimal brightness according to the light intensity outside the vehicle by pushing and pulling the adjustment knob 3 so that the driver can observe the road conditions ahead. When the filter is not in use, it can also be detached from the magnetic attachment for easy storage.

[0021] Further, see Figure 1 The linear polarizer + 1 / 4 waveplate composite plate 2 is rotatably engaged between the magnetic cap 4 and the base 5.

[0022] It is worth noting that, see Figure 2 A dimmer knob 3 is fixed at the front end of the linear polarizer + 1 / 4 waveplate composite plate 2.

[0023] It is worth noting that, see Figure 4 and Figure 6 The magnetic cap 4 has a magnetically attached hanging bracket 6 on its top, which is suspended on the surface of the light shield inside the vehicle.

[0024] When using a variable light driving filter, since the polarizer 1 is a fixed component and its polarization direction remains unchanged after being preset, the linear polarizer + 1 / 4 waveplate composite plate 2 can rotate clockwise or counterclockwise around the circumference after moving the dimming knob 3. By rotating, the angle between the two polarization directions between the polarizer 1 and the linear polarizer + 1 / 4 waveplate composite plate 2 is changed, thereby changing the luminous flux of the filter and achieving the purpose of light variation. The filter is connected to the hanging bracket 6 suspended on the light shield inside the vehicle by the magnetic head of the magnetic cap 4. The dimming knob 3 can be easily pushed and pulled to adjust the light intensity of the filter window to the optimal brightness for the driver to observe the road conditions ahead, according to the intensity of the external light. When the filter is not in use, it can also be detached from the magnetic attachment for easy storage.

[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A variable light vehicular filter, comprising a linear polarizer (1) and a composite plate of linear polarizer and quarter-wave plate, characterized in that, The linear polarizer (1) and the linear polarizer + 1 / 4 waveplate composite plate (2) are aligned in plane, with the linear polarizer (1) positioned below and the linear polarizer + 1 / 4 waveplate composite plate (2) positioned above with the waveplate facing upwards.

2. The variable light travel filter as described in claim 1, characterized in that, The linear polarizing plate (1) is equipped with a magnetic cap (4) and a base (5) at its upper and lower ends, respectively.

3. The variable light travel filter as described in claim 1, characterized in that, The linear polarizer + 1 / 4 waveplate composite plate (2) is rotatably engaged between the magnetic cap (4) and the base (5).

4. The variable light travel filter as described in claim 1, characterized in that, The front end of the linear polarizer + 1 / 4 waveplate composite plate (2) is fixed with a dimming knob (3).

5. The variable light travel filter as described in claim 2, characterized in that, The magnetic cap (4) has a magnetically attached bracket (6) on its top, which is suspended on the surface of the light shield inside the vehicle.

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