Dynamic anti-dazzle lens

Abstract

The utility model discloses a dynamic anti-dazzle lens which comprises a light source sensor, a light-transmitting controller and one or more controllable light-transmitting media, and the light-transmitting controller is used for controlling the light-transmitting media according to the direction of each light source and related luminosity information obtained by the light source sensor. The light transmittance of one or more light-transmitting units on the controllable light-transmitting medium is controlled based on the geometrical relationship among the light source direction, the controllable light-transmitting medium and the light receiving body and a preset reference luminosity value, so that the luminosity reaching the light receiving body through the part is changed, and the anti-dazzling effect of the light receiving body is achieved; or when the light source direction and / or the luminosity is changed, the light transmittance controller can dynamically adjust the light transmittance of the corresponding part of the controllable light-transmitting medium in real time, so that the purpose of dynamic anti-dazzle is achieved.

Description

Technical Field

[0001] This utility model relates to the fields of anti-glare lenses, electronics and optics, specifically a dynamic anti-glare lens. Background Technology

[0002] Whether outdoors or indoors, various light-receiving objects, including people's eyes and optical instruments such as camera equipment, receive light of different intensities from light sources in various directions within the field of view. However, if the intensity of one or more light sources is much higher than that of other light sources, it may exceed the maximum intensity that the light-receiving object can sense. This can be dazzling to people's eyes and cause the photosensitive element to saturate, malfunction, or even be damaged.

[0003] Glare is more than just a feeling of discomfort. During the day, outdoor glare is often caused by sunlight, whose ultraviolet rays are a significant factor in damaging eyesight. Outdoor glare can also prevent people from noticing immediate dangers such as approaching cars or other obstacles. For drivers, glare can impair their ability to properly observe road conditions, such as signs, pedestrians, other vehicles, or curves, leading to traffic accidents. At night or in low-light conditions, glare from streetlights, vehicle headlights, and other light sources can interfere with the driver's vision. Glare can cause discomfort, temporary blindness, or blurred vision, making it difficult to properly observe road conditions. Glare can also affect the driver's judgment of speed and distance, leading to incorrect driving decisions, such as misjudging distance and speed, thus increasing the risk of traffic accidents. Furthermore, prolonged exposure to glare can easily cause eye fatigue, dryness, and pain, affecting driving comfort.

[0004] Glare can produce stray light spots and artifacts in the image of a camera device, covering or interfering with the normal content of the image and causing the image to become blurry. In addition, glare can reduce the contrast of the image, making the image look dark and lacking in depth. In some cases, glare may also damage the lens and sensor of the camera device, affecting the lifespan and performance of the device.

[0005] To date, there is no way to completely solve this problem. In optical instruments, a filter is usually added in front of the lens to filter all light sources in the field of view without bias. The same method is used for human eyes. Only sunglasses with filters can be used to reduce the brightness of the entire field of view. However, whether it is a filter or sunglasses, they all filter and reduce the light of all light sources in the entire field of view in the same way. They cannot completely block strong light and also reduce other weaker light sources at the same time, making it impossible for users to see what they want to see clearly. The problem can never be completely solved. Utility Model Content

[0006] In order to overcome the shortcomings of existing technical solutions, this utility model provides a dynamic anti-glare lens, which can effectively solve the technical problems mentioned in the background art.

[0007] The technical solution adopted by this utility model to solve its technical problem is a dynamic anti-glare lens, including a light source sensor, a light transmission controller and one or more controllable light transmission media. The light source sensor is connected to the light transmission controller, and the light transmission controller is connected to all controllable light transmission media.

[0008] Each of the controllable light-transmitting media is placed in front of one or more light-receiving objects not included in this invention, with the aim of ensuring that most of the light received and sensed by the light-receiving object passes through the controllable light-transmitting media. The light-receiving object is the beneficiary of this anti-glare invention. The controllable light-transmitting media consists of multiple parallel and individually controllable light-transmitting units, such that when each light-transmitting unit is activated, its light transmittance changes significantly.

[0009] The light source sensor is used to acquire luminance relative to the light receiver from multiple different source directions and to identify each source direction;

[0010] The light transmittance controller, based on the light source direction and related luminance information obtained by the light source sensor, and the geometric relationship between the light source direction, the controllable light transmittance medium, and the light receiver, and a preset reference luminance value, controls the transmittance of one or more light transmittance units on the controllable light transmittance medium, thereby changing the luminance reaching the light receiver through that part, achieving the purpose of anti-glare for the light receiver. When the light receiver moves, or the light source direction or luminance changes, the light transmittance controller can dynamically adjust the transmittance of the corresponding part of the controllable light transmittance medium in real time to achieve the purpose of dynamic anti-glare.

[0011] Furthermore, the light source sensor consists of multiple light guide channels and photosensitive elements. Each light guide channel receives light within a predetermined narrow angle range. The received light is transmitted through the light guide channel to one or more photosensitive elements connected to it, and the photosensitive elements convert the light intensity into voltage or current signals.

[0012] Furthermore, the light source sensor is an electronic camera lens that can project images onto its built-in photosensitive element plane, and then convert the light intensity sensed by various parts of the plane, along with the coordinate data of the relevant parts, into electronic information.

[0013] Furthermore, the light-transmitting unit is a liquid crystal unit, and multiple liquid crystal units are connected to a liquid crystal controller. The light-transmitting controller is connected to the liquid crystal controller to control the light transmittance of each liquid crystal unit.

[0014] Furthermore, the light transmittance controller is connected to a photometric selection input, which can select multiple preset reference photometric values.

[0015] Furthermore, the light-transmitting controller is connected to a mode selection input, which can select a non-light-sensing mode, so that the light-transmitting controller ignores the information of the light source sensor and places all preset parts on the controllable light-transmitting medium in the same light transmittance state.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The novel dynamic anti-glare lens designed based on the above-mentioned utility model addresses the root cause of the problem by dynamically blocking multiple strong light sources within the field of vision in real time, fundamentally solving the problems encountered in the background technology. When applied as sunglasses, users can look directly into strong light, such as the sun, and still comfortably and clearly observe other people and the environment. It is the world's first and only solution to the glare problem, providing practical use and assistance to countless people. As can be seen from the following implementation examples, the required energy consumption is very low, and it can be powered by a small battery, which is very convenient. It has unlimited potential in the international market, and the price is not expensive, making it easily acceptable to the public. After mass production and sales, it will make a huge contribution to the economy. Attached Figure Description

[0018] Figure 1 A simplified structural diagram of a dynamic anti-glare lens;

[0019] Figure 2 This is a layout diagram of Example 3;

[0020] Figure 3 This is a layout diagram of Example 4;

[0021] Figure 4 This is a layout diagram of Example 1;

[0022] Figure 5 This is a schematic diagram of the principle of a dynamic anti-glare lens;

[0023] Figure 6 This is a schematic diagram of the structure of Embodiment 1;

[0024] Figure 7 This is a schematic diagram of Example 2.

[0025] Numbering on the map:

[0026] 1. Frame; 2. Light source sensor; 3. Controllable light-transmitting medium; 4. Light receiver; 5. Light transmission controller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] X, X1, X2, etc. are only one dimension in a two-dimensional plane, and the same principle applies to the other dimensions;

[0029] The light receiver 4 is either an eye or an optical instrument, such as... Figure 5 As shown, d is the distance between the controllable light-transmitting medium 3 and the light-receiving body, and the two are set to balance. d is a preset value and its value is known. w is the diameter of the photosensitive area of ​​the light-receiving body 4, which is a known value. x is the distance between the center and the midline of a part with diameter w on the controllable light-transmitting medium 3. Light passes through this part to reach the light-receiving body 4. A is the angle between the light source and the controllable light-transmitting medium 3. Since each source direction has its own identification, A can be known from the input of the light source sensor 2. Therefore, the light-transmitting part can be known according to x = d tan(A).

[0030] The light-transmitting controller 5 obtains the relevant luminance information for all detection directions from the light source sensor 2 and compares it with the preset reference luminance value one by one. When the luminance of one or more directions is higher than the preset reference luminance value, it is determined that the relevant light source can cause glare, and the corresponding x value is determined accordingly. The light-transmitting controller 5 controls the controllable light-transmitting medium 3 in real time to reduce the light transmittance of one or more light-transmitting units within the diameter w of the x perimeter, thereby reducing the luminance reaching the light receiver 4 through this part, achieving anti-glare for the light receiver 4. Other light-transmitting units are still set to the light-transmitting state, so light sources that do not cause glare can still reach the light receiver 4.

[0031] The present invention provides a dynamic anti-glare lens, including a light source sensor 2, a light transmission controller 5, and one or more controllable light transmission media 3. Each of the controllable light transmission media 3 is placed in front of one or more light receivers 4, so that most of the light must pass through the controllable light transmission media 3 before being received and sensed by the light receivers 4.

[0032] The light source sensor 2 is used to acquire the luminance relative to the light receiver 4 from multiple different source directions, and each source direction is marked.

[0033] The controllable light-transmitting medium 3 includes multiple light-transmitting units arranged in parallel;

[0034] The light-transmitting controller 5 is connected to the light source sensor 2 and also to multiple light-transmitting units in the controllable light-transmitting medium 3 to control the light transmittance of the multiple light-transmitting units. When each light-transmitting unit is in an active state, the light transmittance of the light-transmitting unit will change significantly. The light-transmitting controller 5 obtains the direction of each light source and its related photometric information from the light source sensor 2. Based on the geometric relationship between the light source direction, the controllable light-transmitting medium 3 and the light receiver 4, and a preset reference photometric value, it controls the light transmittance of one or more light-transmitting units on the controllable light-transmitting medium 3, thereby changing the photometric value reaching the light receiver 4 through that part, so as to achieve the purpose of anti-glare for the light receiver 4. When the light receiver 4 moves or the direction or photometric value of the light source changes, the light-transmitting controller 5 dynamically adjusts the light transmittance of the corresponding part of the controllable light-transmitting medium 3 to achieve the purpose of dynamic anti-glare.

[0035] The light transmittance controller 5 is connected to a photometric selection input, which can select multiple preset reference photometric values. The light transmittance controller 5 is also connected to a mode selection input, which can select a non-light-sensing mode, so that the light transmittance controller 5 ignores the information of the light source sensor 2 and places all preset parts on the controllable light transmittance medium 3 in the same light transmittance state.

[0036] The light source sensor 2 integrates multiple photosensitive elements, and the light source sensor 2 is provided with multiple light guide channels for guiding light to the photosensitive elements. Each light guide channel only receives light within a predetermined narrow angle range (direction). The received light is transmitted by the light guide channel to one or more photosensitive elements connected to it. The photosensitive elements convert light intensity into voltage or current signals.

[0037] Example 1 (Dynamic Anti-Glare Glasses)

[0038] like Figure 4 and Figure 6 As shown,

[0039] In this embodiment, two controllable light-transmitting media 3 are fitted inside the frame 1. After the user wears the glasses, the controllable light-transmitting media 3 are located in front of the eyes.

[0040] In this embodiment, the light source sensor 2 includes 48 narrow and long hollow light guide channels, which are hidden in the structure of the eyeglass frame 1 and are evenly pointed in different directions within the field of vision. Each light guide channel collects light within a narrow angle range. Each light guide channel is 6mm long and 1mm in diameter, and a photosensitive element is installed at the end of the light guide channel. According to basic trigonometric calculations, the end of the light guide channel can collect light within a range of about 18 degrees. Therefore, the field of vision of each light guide channel is 18 degrees. In order to meet the needs of the eye's effective field of vision of about 120 degrees horizontally and about 90 degrees vertically, 8 light guide channels are needed for each horizontal plane (120 / (8-1) is about 18 degrees), and 6 light guide channels are needed for each vertical plane (90 / (6-1) = 18 degrees). Therefore, a total of 8*6 = 48 light guide channels are needed. In this embodiment, the light guide channel is a straight line, but it can also be a curve. The material of the light guide channel can be optical fiber, which guides the light along the irregular channel to the photosensitive element.

[0041] In this embodiment, the light-transmitting controller 5 is mounted in the center of the frame 1. The light-transmitting controller 5 consists of a microcontroller and related circuits and components, a battery, a light intensity selection switch, etc. The battery is a small button battery. The light-transmitting controller 5 is connected to the 48 photosensitive elements of the light source sensor 2, and the light-transmitting controller 5 is connected to the controllable light-transmitting medium 3.

[0042] In this embodiment, the controllable light-transmitting medium 3 consists of two liquid crystal lenses made according to existing technology. The lenses can be tinted according to the user's preferences and needs. Each liquid crystal lens has 128 parallel hexagonal liquid crystal units. The 128 hexagonal liquid crystal units cover the entire liquid crystal lens. The liquid crystal units are connected to the liquid crystal controller built into the liquid crystal lens. The liquid crystal controller is connected to the light-transmitting controller 5.

[0043] When the liquid crystal lens is in an inactive state, light can pass directly through it. When a liquid crystal cell in the liquid crystal lens is activated, it becomes opaque. Therefore, the light transmission controller can activate multiple liquid crystal cells according to the above technical solution. The activated liquid crystal cells are adjacent, and their combined shape and area are slightly larger than the pupil, so that the multiple liquid crystal cells that have become opaque can block strong light from shining into the eyes. If multiple strong light sources exist at the same time, the light transmission controller 5 can activate the liquid crystal cells in multiple parts of the liquid crystal lens at the same time. If the strong light source disappears, the light transmission controller 5 will restore the liquid crystal cells in the relevant parts to the inactive state. This allows the light transmission controller 5 to adjust the state of the relevant liquid crystal cells in real time when the direction of the strong light source changes or disappears, or when the user moves their head, achieving real-time dynamic anti-glare, and the adjustment process does not affect other fields of vision.

[0044] In this embodiment, a light intensity selection input switch is mounted in the center of the frame 1. The light intensity selection input switch can select between daytime mode and nighttime mode. The preset reference light intensity value is higher in daytime mode and lower in nighttime mode to match the ambient light intensity.

[0045] When driving at night or in low-light conditions, the dynamic anti-glare lens can effectively reduce glare from light sources such as streetlights and car lights. In addition, when the wearer is engaged in outdoor activities such as skiing, fishing, or cycling, the dynamic anti-glare lens can reduce glare caused by sunlight or light reflected from the water surface.

[0046] Example 2 (Dynamic Anti-Glare Glasses)

[0047] The difference between Example 2 and Example 1 is that the light source sensor 2 uses an electronic camera lens to acquire the direction and intensity of the light source, as described in the following principle. Figure 7 As shown, when the light source sensor 2 is an electronic camera lens, light sources from different directions are focused by the focusing lens inside the camera lens and projected onto different parts of the plane of its built-in photosensitive element. The luminance sensed at each part, along with the coordinate data of the relevant part, is converted into electronic information and output through the electronic camera lens interface. Therefore, the light transmission controller 5 can obtain the luminance at each coordinate simply through the relevant interface, such as... Figure 7 As shown, each coordinate corresponds to the direction angle of the light source. Therefore, the direction of the light source can be determined from the coordinate data. By comparing the relevant luminance with the preset reference luminance value, it can be determined whether there is a strong light source and its direction angle.

[0048] Example 3 (Car Sunshade)

[0049] The difference between Example 3 and Example 1 is that the dynamic anti-glare lens is applied to a car sun visor, such as... Figure 2 As shown, only a large area of ​​light-transmitting medium is needed, which is placed in front of the driver to cover the driver's field of vision. The controllable light-transmitting medium 3, the light source sensor 2 and the light-transmitting controller 5 are all installed on the car.

[0050] Example 4 (Anti-glare windshield)

[0051] The difference between Example 4 and Example 3 is that the dynamic anti-glare lens is applied to the anti-glare windshield, embedding a light-transmitting medium, either tightly or loosely, into the windshield and covering most of its area, such as... Figure 3 As shown, this provides an anti-glare effect for both the driver and passengers in the front seat. Preferably, the light-transmitting controller 5 is connected to a mode selection input, which can select a non-light-sensing mode. This allows the light-transmitting controller 5 to ignore the information from the light source sensor 2 and make the entire controllable light-transmitting medium 3 either light-transmitting or opaque. If it is completely opaque, it can be used as a sunshade for the front seat, which can significantly reduce the temperature rise in the car cabin caused by sunlight shining into the cabin.

[0052] It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims. Various other corresponding changes and modifications can be made based on the technical solutions and embodiments described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A dynamic anti-glare lens, characterized in that, It includes a light source sensor, a light transmission controller, and one or more controllable light transmission media, wherein the light source sensor is connected to the light transmission controller, and the light transmission controller is connected to all controllable light transmission media; Each of the controllable light-transmitting media is placed in front of one or more light-receiving objects so that most of the light received and sensed by the light-receiving objects must pass through the controllable light-transmitting media. The controllable light-transmitting media consists of multiple parallel and individually controllable light-transmitting units, such that when each light-transmitting unit is activated, its light transmittance will change significantly. The light source sensor is used to acquire luminance relative to the light receiver from multiple different source directions and to identify each source direction; The light transmittance controller, based on the direction of each light source and its related luminance information obtained by the light source sensor, and the geometric relationship between the light source direction, the controllable light transmittance medium, and the light receiver, and a preset reference luminance value, controls the transmittance of one or more light transmittance units on the controllable light transmittance medium, thereby changing the luminance reaching the light receiver through the light transmittance unit to achieve the purpose of anti-glare for the light receiver. When the light receiver moves, or the direction of the light source or the luminance changes, the light transmittance controller can dynamically adjust the transmittance of the light transmittance unit in real time to achieve the purpose of dynamic anti-glare.

2. The dynamic anti-glare lens according to claim 1, characterized in that, The light source sensor consists of multiple light guide channels and photosensitive elements. Each light guide channel receives light within a predetermined narrow angle range. The received light is transmitted through the light guide channel to one or more photosensitive elements connected to it. The photosensitive elements convert light intensity into voltage or current signals.

3. The dynamic anti-glare lens according to claim 1, characterized in that, The light source sensor is an electronic camera lens that can project images onto its built-in photosensitive element plane, and then convert the light intensity sensed by each light-transmitting unit on the plane, as well as the coordinate data of the light-transmitting unit, into electronic information.

4. The dynamic anti-glare lens according to claim 1, characterized in that, The light-transmitting unit is a liquid crystal unit, and multiple liquid crystal units are connected to a liquid crystal controller. The light-transmitting controller is connected to the liquid crystal controller to control the light transmittance of each liquid crystal unit.

5. A dynamic anti-glare lens according to claim 1, characterized in that, The light transmittance controller is connected to a photometric selection input, which can select multiple preset reference photometric values.

6. A dynamic anti-glare lens according to claim 1, characterized in that, The light-transmitting controller is connected to a mode selection input, which can select a non-light-sensing mode, so that the light-transmitting controller ignores the information of the light source sensor and puts all the light-transmitting units on the controllable light-transmitting medium into the same light transmittance state.

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