Dynamic anti-dazzle lens and design and application thereof

Abstract

The invention discloses a dynamic anti-dazzle lens and design and application thereof, the dynamic anti-dazzle lens comprises a light source sensor, a light-transmitting controller and one or more controllable light-transmitting media, the light-transmitting controller is used for controlling the one or more controllable light-transmitting media according to each light source direction and related luminosity information acquired by the light source sensor, and the one or more controllable light-transmitting media are used for controlling the one or more controllable light-transmitting media. 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] The invention relates to the fields of anti-glare lenses, electronic and optical technologies, and in particular to a dynamic anti-glare lens and its design and application. Background Art

[0002] Whether outdoors or indoors, various photoreceptors, including people's eyes and optical instruments such as cameras, will receive light of different intensities from light sources in all directions within the field of view. However, if the brightness of one or more light sources is much higher than the others, it may exceed the maximum brightness that the photoreceptor can sense, which is dazzling to people's eyes. For optical instruments, it will cause the photosensitive elements to become saturated, unable to work normally, or even cause damage.

[0003] Glare is not only uncomfortable for people. The source of glare outdoors during the day is usually sunlight, whose ultraviolet rays are an important factor in damaging vision. Glare outdoors is more likely to make people unable to perceive immediate dangers such as approaching cars or other obstacles. For drivers, glare is more likely to cause them to be unable to observe road conditions normally, such as signs, pedestrians, other vehicles or corners, causing traffic accidents. When driving at night or in low-light conditions, glare from street lights, car lights and other light sources will interfere with the driver's vision. Glare can make the driver feel uncomfortable, causing temporary blindness or blurred vision, and unable to observe road conditions normally. Glare can also affect the driver's judgment of speed and distance, causing the driver to make wrong driving decisions, such as misjudging the distance between vehicles and misjudging the speed, thereby increasing the risk of traffic accidents. In addition, if the driver is in a glare environment for a long time, the driver's eyes are prone to fatigue, dryness, pain and other symptoms, affecting driving comfort.

[0004] Glare can produce stray light spots and artifacts in the images of camera equipment, covering or interfering with the normal content of the picture, causing the image to become blurred. In addition, glare can reduce the contrast of the image, making the picture look gray and lack of layering. In some cases, glare may also damage the lens and sensor of the camera equipment, affecting the life and performance of the equipment.

[0005] So far, there is no solution that can completely solve the problem. In optical instruments, a filter lens is usually added in front of the lens to filter all light sources in the field of view without deviation at the same time. In terms of people's eyes, the same method can only be used to reduce the brightness in the entire field of view with filtering sunglasses. However, no matter the filter lens or sunglasses, all light sources in the entire field of view are filtered and reduced indiscriminately. It can neither completely block strong light nor reduce other weaker light sources at the same time, so that users can never see what they want to see clearly. The problem can never be completely solved. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art solutions, the present invention provides a dynamic anti-glare lens and its design and application, which can effectively solve the technical problems raised by the background technology.

[0007] The technical solution adopted by the present invention to solve the 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, 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;

[0008] Each of the controllable light-transmitting media is placed in front of one or more photoreceptors not included in this invention, with the purpose of making most of the light received and sensed by the photoreceptors pass through the controllable light-transmitting media, and the photoreceptors are the beneficiaries of this anti-glare invention. The controllable light-transmitting media is composed of a plurality of parallel and individually controllable light-transmitting units, so that when each light-transmitting unit is activated, its light transmittance will change significantly;

[0009] The light source sensor is used to obtain the light intensity from multiple different source directions relative to the light receptor, and to identify each source direction;

[0010] The light transmission controller controls the transmittance of a single or multiple light transmission units on the controllable light transmission medium according to the directions of each light source and the related luminosity information obtained by the light source sensor, based on the geometric relationship among the light source direction, the controllable light transmission medium and the photosensitive body, and a preset reference luminosity value, thereby changing the luminosity reaching the photosensitive body through the part to achieve the purpose of anti-glare for the photosensitive body. When the photosensitive body moves, or the direction of the light source and / or the luminosity changes, the light transmission controller can dynamically adjust the transmittance of the corresponding part of the controllable light transmission medium in real time to achieve the purpose of dynamic anti-glare.

[0011] Furthermore, the light source sensor is composed of multiple light pipes and photosensitive elements. Each light pipe only receives light within a predetermined narrow angle range. The received light is transmitted by the light pipe to one or more photosensitive elements connected thereto, and the photosensitive elements convert the light intensity into voltage or current signals.

[0012] Furthermore, the light source sensor is an electronic camera lens, which can project an image onto a built-in photosensitive element plane, and then convert the light intensity sensed by each part on the plane, together with the coordinate data of the relevant part, into electronic information.

[0013] Furthermore, the light-transmitting unit is a liquid crystal unit, a plurality of liquid crystal units are connected to a liquid crystal controller, and 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 transmission controller is connected to a light selection input, and a plurality of preset reference light values ​​can be selected.

[0015] Furthermore, the light transmission controller is connected to a mode selection input, and a non-light-sensitive mode can be selected, so that the light transmission controller ignores the information of the light source sensor and sets all the preset parts on the controllable light transmission medium to the same light transmittance state.

[0016] Another object of the present invention is to provide dynamic anti-glare lenses for use in sunglasses, camera equipment, and car sunshades.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The new dynamic anti-glare lens designed based on the above invention content starts from the source of the problem and dynamically blocks multiple strong light sources in the field of vision in real time, fundamentally solving the problems encountered by the background technology. When applied as sunglasses, the user can look at strong light such as the sun and still comfortably and clearly observe other people in the environment. For the first time in the world, it uniquely solves the problem of glare and has practical uses and help for countless people. It can be seen from the following implementation examples that the required energy consumption is very low and can be powered by small batteries, which is very convenient. The international market potential is unlimited, and the price is not expensive and is easily accepted by the public. After mass production and sales, it will make a huge contribution to the economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a simplified structural diagram of a dynamic anti-glare lens;

[0020] Figure 2 This is the layout diagram of embodiment 3;

[0021] Figure 3 This is the layout diagram of the fourth embodiment;

[0022] Figure 4 This is a layout diagram of Embodiment 1;

[0023] Figure 5 This is a schematic diagram of a dynamic anti-glare lens;

[0024] Figure 6 It is a structural schematic diagram of embodiment 1;

[0025] Figure 7 This is a schematic diagram of the second embodiment.

[0026] Numbers in the figure:

[0027] 1. Mirror frame; 2. Light source sensor; 3. Controllable light-transmitting medium; 4. Photoreceptor; 5. Light-transmitting controller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in 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 creative work are within the scope of protection of the present invention.

[0029] X, X1, X2, etc. are only one of the dimensions on the two-dimensional plane, and the same principle applies to the remaining dimensions;

[0030] The light receiving body 4 is 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 be balanced. d is preset and its value is known. w is the diameter of the light-sensitive area of ​​the light-receiving body 4, which is a known value. x is the distance between the center and the midline of a portion with a diameter of w on the controllable light-transmitting medium 3. The light passes through this portion 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 identifier, A can be obtained from the input of the light source sensor 2. Therefore, the light-transmitting portion can be known according to x=d tan(A);

[0031] The light transmission controller 5 obtains the relevant luminosity information of all detection directions from the light source sensor 2, and compares them with the preset reference luminosity values ​​one by one. When the luminosity in one or more directions is higher than the preset reference luminosity value, it is determined that the relevant light source can cause glare, and the corresponding x value is determined accordingly. The light transmission controller 5 immediately controls the controllable light transmission medium 3 to reduce the light transmittance of a single or multiple light transmission units within the diameter w of the x periphery, thereby reducing the light intensity reaching the photoreceptor 4 through this part, so as to achieve anti-glare for the photoreceptor 4. Other light transmission units are still set to the light transmission state, so that the light source that does not cause glare can still reach the photoreceptor 4;

[0032] The present invention provides a dynamic anti-glare lens, comprising a light source sensor 2, a light transmission controller 5, and one or more controllable light transmission media 3, each of which is placed in front of one or more light receptors 4, so that most of the light must first pass through the controllable light transmission medium 3 before being received and sensed by the light receptor 4;

[0033] The light source sensor 2 is used to obtain the light intensity from multiple different source directions relative to the light receptor 4, and each source direction has an identification;

[0034] The controllable light-transmitting medium 3 includes a plurality of light-transmitting units distributed in parallel;

[0035] The light transmission controller 5 is connected to the light source sensor 2, and the light transmission controller 5 is also connected to a plurality of light transmission units in the controllable light transmission medium 3 to control the light transmittance of the plurality of light transmission units. When each light transmission unit is in an activated state, the light transmittance of the light transmission unit will change significantly. The light transmission controller 5 obtains the directions of each light source and the related photometric information from the light source sensor 2, and controls the light transmittance of a single or multiple light transmission units on the controllable light transmission medium 3 based on the geometric relationship among the light source direction, the controllable light transmission medium 3 and the photoreceptor 4, and a preset reference photometric value, thereby changing the light intensity reaching the photoreceptor 4 through the portion, so as to achieve the purpose of anti-glare for the photoreceptor 4. When the photoreceptor 4 moves or the light source direction or photometric changes, the light transmission controller 5 dynamically adjusts the light transmittance of the corresponding portion of the controllable light transmission medium 3, so as to achieve the purpose of dynamic anti-glare.

[0036] The light transmission controller 5 is connected to a light intensity selection input, and a plurality of preset reference light intensity values ​​can be selected. The light transmission controller 5 is connected to a mode selection input, and a non-light-sensitive mode can be selected, so that the light transmission controller 5 ignores the information of the light source sensor 2 and sets all the preset parts on the controllable light transmission medium 3 to the same light transmittance state;

[0037] The light source sensor 2 is integrated with a plurality of photosensitive elements, and the light source sensor 2 is provided with a plurality of light guide pipes for guiding light to the photosensitive elements, each light guide pipe only receives light within a predetermined narrow angle range (direction), and the received light is transmitted by the light guide pipe to one or more photosensitive elements connected thereto, and the photosensitive elements convert the light intensity into a voltage or current signal;

[0038] Embodiment 1 (dynamic anti-glare glasses)

[0039] like Figure 4 and Figure 6 As shown,

[0040] In this embodiment, two controllable light-transmitting media 3 are mounted in the frame 1. When the user wears the glasses, the controllable light-transmitting media 3 are located in front of the eyes.

[0041] In this embodiment, the light source sensor 2 includes 48 narrow and long hollow light pipes, which are hidden in the structure of the eyeglass frame 1 and evenly pointed to different directions in the field of vision, so that each light pipe only collects light within a narrow angle range. Each light pipe is 6 mm long and 1 mm in diameter, and a photosensitive element is installed at the end of the light pipe. According to basic trigonometric calculations, the end of the light pipe can collect light within a range of about 18 degrees, so the field of vision of each light pipe is 18 degrees. In accordance with the requirement that the effective field of vision of the eye is about 120 degrees horizontally and about 90 degrees vertically, each horizontal plane requires 8 light pipes (120 / (8-1) is about 18 degrees), and each vertical plane requires 6 light pipes (90 / (6-1)=18 degrees), so a total of 8*6=48 light pipes are required. The light pipe is a straight line in this embodiment, and can also be a curve. The material of the light pipe can be selected as optical fiber to guide the light along the irregular pipe to the photosensitive element;

[0042] In this embodiment, the light transmission controller 5 is mounted in the central part of the frame 1. The light transmission controller 5 is composed of a microcontroller and related circuits and parts, a battery, a light intensity selection switch, etc. The battery uses a small button battery. The light transmission controller 5 is connected to the 48 photosensitive elements of the light source sensor 2, and the light transmission controller 5 is connected to the controllable light transmission medium 3.

[0043] In this embodiment, the controllable light-transmitting medium 3 is two liquid crystal lenses made according to existing technology. The lenses can be dyed according to the user's preferences and needs. Each liquid crystal lens has 128 parallel hexagonal liquid crystal units built in. The 128 hexagonal liquid crystal units cover the entire liquid crystal lens. The liquid crystal units are connected to the liquid crystal controller built in the liquid crystal lens, and the liquid crystal controller is connected to the light transmission controller 5.

[0044] When the liquid crystal lens is in an unactivated state, light can directly pass through the liquid crystal lens. When a certain liquid crystal unit in the liquid crystal lens is activated, the liquid crystal unit is in a light-proof state. Therefore, the light transmission controller can activate multiple liquid crystal units according to the description of the above technical solution. The multiple activated liquid crystal units are adjacent, and their combined shape and area are slightly larger than the pupil, so that the multiple liquid crystal units converted into a light-proof state can block strong light from irradiating the eyes. If there are multiple strong light sources at the same time, the light transmission controller 5 can simultaneously activate the liquid crystal units at multiple locations on the liquid crystal lens. If the strong light source disappears, the light transmission controller 5 will restore the liquid crystal units at the relevant locations to an unactivated state, so that when the direction of the strong light source changes or disappears, or the user moves his head, the light transmission controller 5 can adjust the state of the relevant liquid crystal units in real time to achieve real-time dynamic anti-glare, and the adjustment process does not affect other fields of vision;

[0045] In this embodiment, the light level selection input switch is mounted in the center of the frame 1. The light level selection input switch can select a day mode or a night mode. The preset reference light level is higher in the day mode and lower in the night mode to match the ambient light level.

[0046] When the wearer drives at night or in low-light conditions, the dynamic anti-glare lens can effectively reduce the glare caused by light sources such as street lights and car lights. In addition, when the wearer engages in outdoor activities such as skiing, fishing, cycling, etc., the dynamic anti-glare lens can reduce the glare caused by sunlight or light reflected from the water surface.

[0047] Embodiment 2 (dynamic anti-glare glasses)

[0048] The difference between the second embodiment and the first embodiment is that the light source sensor 2 uses an electronic camera lens to obtain the light source direction and light intensity principle as shown in FIG. 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 in the camera lens and projected onto different parts of the built-in photosensitive element plane. The light intensity sensed by each part, together with the coordinate data of the relevant part, will be converted into electronic information and output through the electronic camera lens interface. Therefore, the light transmission controller 5 only needs to obtain the light intensity of each coordinate through the relevant interface, such as Figure 7 As shown, each coordinate has a corresponding light source direction angle, so the light source direction can be known from the coordinate data, and by comparing the relevant luminosity with the preset reference luminosity value, it can be known whether there is a strong light source and its direction angle;

[0049] Embodiment 3 (car sunshade)

[0050] The difference between the third embodiment and the first embodiment is that the dynamic anti-glare lens is applied to the sunshade of the car, 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 front vision, and the controllable light-transmitting medium 3, the light source sensor 2 and the light-transmitting controller 5 are all installed on the car;

[0051] Embodiment 4 (anti-glare windshield)

[0052] The difference between the fourth embodiment and the third embodiment is that the dynamic anti-glare lens is applied to the anti-glare windshield, and the light-transmitting medium is built-in, closely attached or not closely attached to the windshield of the car, and covers most of its area, such as Figure 3 As shown, the front seat driver and passenger can obtain the anti-glare effect at the same time. Preferably, the light transmission controller 5 is connected to a mode selection input, and the non-light-sensitive mode can be selected, so that the light transmission controller 5 ignores the information of the light source sensor 2 and changes the controllable light transmission medium 3 into light-transmitting or light-impermeable. If it is completely light-impermeable, it can be used as a sunshade for the front seat, which can significantly reduce the temperature rise of the cabin caused by sunlight shining into the cabin.

[0053] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. According to the technical solutions and embodiments described above, various other corresponding changes and deformations are made, and all of these changes and deformations should fall within the scope of protection of the claims of the present invention.

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 photoreceptors not included in this invention, with the purpose of making most of the light received and sensed by the photoreceptors pass through the controllable light-transmitting media, and the photoreceptors are the beneficiaries of this anti-glare invention. The controllable light-transmitting media is composed of a plurality of parallel and individually controllable light-transmitting units, so that when each light-transmitting unit is activated, its light transmittance will change significantly; The light source sensor is used to obtain the light intensity from multiple different source directions relative to the light receptor, and to identify each source direction; The light transmission controller controls the transmittance of a single or multiple light transmission units on the controllable light transmission medium according to the directions of each light source and the related luminosity information obtained by the light source sensor, based on the geometric relationship among the light source direction, the controllable light transmission medium and the photosensitive body, and a preset reference luminosity value, thereby changing the luminosity reaching the photosensitive body through the part to achieve the purpose of anti-glare for the photosensitive body. When the photosensitive body moves, or the direction of the light source and / or the luminosity changes, the light transmission controller can dynamically adjust the transmittance of the corresponding part of the controllable light transmission medium 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 is composed of a plurality of light pipes and photosensitive elements. Each light pipe only receives light within a predetermined narrow angle range. The received light is transmitted by the light pipe to one or more photosensitive elements connected thereto. The photosensitive elements convert the light intensity into a voltage or current signal.

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 an image onto a built-in photosensitive element plane, and then convert the light intensity sensed at each part of the plane, together with the coordinate data of the relevant parts, 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 a plurality of 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. The dynamic anti-glare lens according to claim 1, characterized in that: The light transmission controller is connected to a light selection input, and a plurality of preset reference light values ​​can be selected.

6. The dynamic anti-glare lens according to claim 1, characterized in that: The light transmission controller is connected to a mode selection input, and a non-light-sensitive mode can be selected, so that the light transmission controller ignores the information of the light source sensor and sets all the preset parts on the controllable light transmission medium to the same light transmittance state.

7. Application of the dynamic anti-glare lens according to any one of claims 1 to 6 in sunglasses, camera equipment, and car sunshades.

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