Anti-glare device, method, rearview mirror and vehicle

Abstract

The application provides an anti-dazzle device, method, rearview mirror and vehicle, which comprises a main body provided with a containing groove; a first mirror surface arranged in the containing groove; a second mirror surface arranged in the containing groove and arranged in parallel with the first mirror surface, wherein the orthographic projection of the groove bottom of the containing groove and the orthographic projection of the first mirror surface on the groove bottom are overlapped; and an adjusting unit arranged on the groove bottom and connected with the side of the second mirror surface away from the first mirror surface, which is configured to adjust the distance between the second mirror surface and the first mirror surface, so as to adjust the light intensity of the light emitted from the first mirror surface after the interference between the first mirror surface and the second mirror surface. The application controls the distance between the first mirror surface and the second mirror surface to control the light intensity of the reflected light emitted from the first mirror surface, so that the light intensity received by the human eye through the anti-dazzle device can always be kept in the comfortable interval, that is, the anti-dazzle purpose can be achieved in a more accurate and convenient and flexible way.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a glare-proof device, method, rearview mirror and vehicle. BACKGROUND

[0002] With the development of economy, more and more vehicles are running on the road, and driving safety is also more and more concerned by people. At present, during driving, especially at night, the reflection problem of the rearview mirror becomes the main safety hazard. When strong light is incident on the rearview mirror and reflected into the driver's eyes, it will directly affect the driver's vision. The current manual anti-glare rearview mirror needs to manually adjust the small knob to adjust the mirror angle, change the reflection light angle to achieve the anti-glare effect, which is not suitable for variable incident light. SUMMARY

[0003] Therefore, the present application provides a glare-proof device, method, rearview mirror and vehicle, so as to provide a safer and better experienced automatic anti-glare device.

[0004] In order to achieve the above purpose, the present application provides a glare-proof device, comprising:

[0005] a main body, provided with a containing groove;

[0006] a first mirror surface, arranged in the containing groove;

[0007] a second mirror surface, arranged in the containing groove, and arranged in parallel with the first mirror surface, and the orthographic projection of the groove bottom overlaps the orthographic projection of the first mirror surface on the groove bottom;

[0008] an adjusting unit, arranged on the groove bottom and connected to the side of the second mirror surface away from the first mirror surface, and configured to adjust the distance between the second mirror surface and the first mirror surface, so as to adjust the light intensity of the light emitted from the first mirror surface after the light is incident on the first mirror surface and interferes between the first mirror surface and the second mirror surface.

[0009] In some embodiments, the adjusting unit comprises:

[0010] a light sensing unit, arranged on the side of the second mirror surface away from the first mirror surface, and configured to sense the light intensity of the light passing through the second mirror surface;

[0011] a power unit, arranged on the groove bottom and connected to the side of the second mirror surface away from the first mirror surface, and configured to control the distance between the second mirror surface and the first mirror surface according to the signal of the light sensing unit.

[0012] In some embodiments, the adjusting unit further comprises:

[0013] A control unit, in communication connection with the light sensing unit and the power unit, is configured to determine a distance between the first mirror and the second mirror according to the light intensity fed back by the light sensing unit, and to generate an electrical signal to control the power unit to drive the second mirror to move.

[0014] In some embodiments, the first mirror comprises:

[0015] A first mirror body;

[0016] A first reflective film layer disposed on a side of the first mirror body close to the second mirror.

[0017] In some embodiments, the first reflective film is connected to the first mirror body by plating.

[0018] In some embodiments, the second mirror comprises

[0019] A second mirror body;

[0020] A second reflective film layer disposed on a side of the second mirror body close to the first mirror.

[0021] In some embodiments, the second reflective film is connected to the second mirror body by plating.

[0022] In some embodiments, the anti-glare device further comprises:

[0023] A medium layer disposed between the first mirror and the second mirror.

[0024] In some embodiments, the walls and the bottom of the accommodating groove are made of light-blocking material.

[0025] Based on the same concept, the present application further provides an anti-glare method for applying the anti-glare device as described in any of the above, characterized in that it comprises:

[0026] Determining the light intensity of the light passing through the first mirror and the second mirror into the accommodating groove;

[0027] Determining a target distance between the first mirror and the second mirror according to the light intensity;

[0028] Adjusting the position of the second mirror according to the target distance by using an adjusting unit.

[0029] In some embodiments, the determination of the target distance between the first mirror and the second mirror according to the light intensity comprises:

[0030] Calculating the incident light intensity and the reflected light intensity of the first mirror according to the light intensity;

[0031] In response to the reflected light intensity not meeting the preset threshold, a distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity is determined according to a preset reference table, and the distance value is determined as the target distance.

[0032] In some embodiments, the determination of the distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity according to the preset reference table comprises:

[0033] In response to the reflected light intensity exceeding the preset threshold, the distance between the first mirror surface and the second mirror surface is reduced within a set range of the preset reference table.

[0034] In response to the reflected light intensity being lower than the preset threshold, the distance between the first mirror surface and the second mirror surface is increased within a set range of the preset reference table.

[0035] In some embodiments, the set range is specifically:

[0036] According to the light intensity, a corresponding relationship between the distance and the reflected light intensity is established, and a section corresponding to the distance and the reflected light intensity according to the corresponding relationship is selected as the set range.

[0037] Based on the same concept, the application further provides a rearview mirror comprising the anti-dazzling device according to any one of the above.

[0038] Based on the same concept, the application further provides a vehicle comprising the rearview mirror according to the above.

[0039] As can be seen from the above, the anti-dazzling device, method, rearview mirror and vehicle provided by the application comprise: a main body provided with a receiving groove; a first mirror surface arranged in the receiving groove; a second mirror surface arranged in the receiving groove and arranged in parallel with the first mirror surface, the projection of the groove bottom of the receiving groove and the projection of the first mirror surface on the groove bottom overlap; an adjusting unit arranged on the groove bottom and connected to the side of the second mirror surface away from the first mirror surface, and configured to adjust the distance between the second mirror surface and the first mirror surface to adjust the light intensity of the light emitted from the first mirror surface and then from the first mirror surface after interference between the first mirror surface and the second mirror surface. The application controls the distance between the first mirror surface and the second mirror surface to control the light intensity of the reflected light emitted from the first mirror surface, so as to ensure that the light intensity received by the human eye through the anti-dazzling device can always be kept in a comfortable range, that is, the anti-dazzling purpose can be achieved in a more accurate and convenient and flexible way. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0041] Figure 1 A cross-sectional structure schematic diagram of a glare-proof device provided by an embodiment of the present application;

[0042] Figure 2 A cross-sectional structure schematic diagram of a glare-proof device provided by an embodiment of the present application under light irradiation;

[0043] Figure 3 A relationship schematic diagram between the distance between two mirror surfaces of a glare-proof device provided by an embodiment of the present application and the reflected light intensity;

[0044] Figure 4 A specific work flow schematic diagram of a glare-proof device provided by an embodiment of the present application in a specific embodiment;

[0045] Figure 5 A flow schematic diagram of a glare-proof method provided by an embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the embodiments and the drawings.

[0047] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the common meanings understood by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second" and similar terms used in the embodiments of the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements, objects or method steps listed before the terms cover the elements, objects or method steps listed after the terms and their equivalents, and do not exclude other elements, objects or method steps. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships may also be changed accordingly.

[0048] As described in the background section, the motor vehicle rearview mirror is an important component for the driver to obtain the road conditions behind the vehicle. At present, the rearview mirror on the car generally uses a plane mirror. When driving at night, if there is a rear vehicle with high beam, strong reflected light will be generated in the vehicle-mounted rearview mirror, causing the driver to be dazzled. The dazzling will cause the driver's operation reaction to be delayed, seriously affecting the driving safety. In addition, strong light is easy to cause eye fatigue, affecting the health of the driver.

[0049] At present, most of the cars in the related art use manual anti-dazzling rearview mirrors. The manual anti-dazzling rearview mirror needs the driver to manually adjust the angle of the rearview mirror to prevent dazzling. The effect is general and requires the driver to be distracted to calibrate. With the rapid development of automobile technology, users have higher and higher requirements for the use experience of the car. Therefore, how to propose a safer and better experienced automatic anti-dazzling rearview mirror is a current urgent problem to be solved.

[0050] In combination with the above actual situation, the embodiment of the present application provides an anti-dazzling device. The present application controls the distance between the first mirror surface and the second mirror surface to control the light intensity of the reflected light emitted from the first mirror surface, so as to ensure that the light intensity received by the human eye through the anti-dazzling device can always be maintained in the comfortable interval, that is, the anti-dazzling purpose can be achieved in a more accurate and convenient and flexible manner.

[0051] As shown in Figure 1 , it is a structure schematic diagram of an anti-dazzling device according to an embodiment of the present application. The anti-dazzling device according to the embodiment of the present application specifically comprises:

[0052] a main body 100, provided with a containing groove 101;

[0053] a first mirror surface 110, arranged in the containing groove 101;

[0054] a second mirror surface 120, arranged in the containing groove 101, and arranged in parallel with the first mirror surface 110, and the orthographic projection of the groove bottom 102 of the containing groove 101 and the orthographic projection of the first mirror surface 110 on the groove bottom 102 overlap;

[0055] an adjusting unit 130, arranged on the groove bottom 102, connected to the side of the second mirror surface 120 away from the first mirror surface 110, and configured to be able to adjust the distance h between the second mirror surface 120 and the first mirror surface 110, so as to adjust the light intensity of the light emitted from the first mirror surface 110 after being emitted into the first mirror surface 110 and interfering between the first mirror surface 110 and the second mirror surface 120.

[0056] In this embodiment, the main body 100 is a housing part used to support other components of the anti-glare device, and plays a supporting and protective role. A receiving groove 101 is provided on the main body 100. In this embodiment, the shape of the receiving groove 101 is adapted to the object placed therein. It can generally be adapted to the shape of the first mirror 110 or the second mirror 120. At the same time, the shapes of the first mirror 110 and the second mirror 120 can be the same.

[0057] Subsequently, the first mirror 110 and the second mirror 120 are arranged parallel to each other, and their orthographic projections overlap or coincide. Combined with the receiving groove 101, a resonant cavity for optical interference can be formed. For example... Figure 2 As shown, the resonant cavity allows light rays that are incident on the first mirror 110 to undergo multiple reflections within the resonant cavity, so that a portion of the light rays pass through the second mirror 120 to form transmitted light, while another portion passes through the first mirror 110 to form reflected light.

[0058] Subsequently, the adjustment unit 130 is positioned at the bottom 102 of the receiving groove 101 and connected to the second mirror 120, enabling it to adjust the position of the second mirror 120 automatically or manually, thereby adjusting the distance h between the second mirror 120 and the first mirror 110. In a specific embodiment, when a beam of monochromatic light with intensity I0 and wavelength λ1 is incident, it will undergo multiple reflections and refractions on the surface of the resonant cavity. This repeated reflection will generate a multi-beam interference effect between the reflected beams. Assuming the beams are incident perpendicularly and transmission loss is ignored, according to the principle of multi-beam interference, the optical resonant cavity will transmit the corresponding beam as transmitted light and reflect the corresponding beam back as reflected light, such as... Figure 2 As shown, assuming the intensity of the transmitted beam is I1 and the intensity of the reflected beam is I2, and neglecting beam transmission loss, I1 = I0 - I2. The intensity of the reflected light wave is related to the effective reflectivity R1 / R2 of the plate, the refractive index n0 of the cavity medium, the distance h between the two mirrors, and the additional phase shift δ introduced during light transmission and reflection, where R1 and R2 are the reflectivities of the first mirror 110 and the second mirror 120, respectively. According to relevant classical theories, the intensity I2 of the reflected beam can be expressed as:

[0059]

[0060] In this specific embodiment, R1 = R2, k is a constant positively correlated with n0, and the phase difference is... Therefore, the above formula can be transformed into:

[0061]

[0062] As can be seen from the formula, the intensity I2 of the reflected beam increases with the phase difference. is periodic, and since k and δ are constants, it can be understood that I2 is periodic with the cavity length h, as shown in Figure 3 To ensure that the reflected light intensity I2 has a one-to-one corresponding value with the distance h, a half period can be selected in the period as shown in Figure 3 The distance h variation interval is controlled within the half period. In this way, the distance between the first mirror 110 and the second mirror 120 is controlled to control the reflected light intensity. Of course, in some embodiments, the control method can be manual control through a knob or the like. The distance h variation interval corresponding to the half period can be determined as the control amplitude interval, and the user can manually control the reflected light intensity to a comfortable level. In other embodiments, the light intensity can be controlled automatically. A preset value of the reflected light intensity can be set in advance, and a preset reference table can be set according to the distance h variation interval corresponding to the half period. The intensity of the transmitted light is detected on the side of the second mirror 120 away from the first mirror 110. Since the current distance h can be accurately measured, the incident light intensity and the reflected light intensity can be inversely deduced according to the above formula. When it is determined that the current reflected light intensity does not meet the preset value, the current target distance can be determined according to the reference table, and the position of the second mirror 120 can be automatically adjusted to the target distance from the first mirror 110, so that the reflected light intensity meets the preset value. Finally, the light intensity received by the human eye is always kept in a comfortable interval, and the automatic anti-glare effect is achieved.

[0063] In an optional embodiment, as shown in Figure 1 The adjustment unit 130 can include a photosensitive unit 131 disposed on the side of the second mirror 120 away from the first mirror 110, configured to sense the light intensity transmitted through the second mirror 120; and a power unit 132 disposed on the groove bottom 102 and connected to the side of the second mirror 120 away from the first mirror 110, configured to control the distance between the second mirror 120 and the first mirror 110 according to the signal of the photosensitive unit 131.

[0064] In the embodiment, the light sensing unit 131 is a light sensitive sensor unit, which can be used to sense the intensity of the light irradiated and generate a corresponding digital signal. The power unit 132 is a power assembly capable of controlling the lifting of the second mirror 120, such as a lifting rod, a telescopic rod, etc. After the light sensing unit 131 senses the intensity of the light passing through the second mirror 120, a corresponding signal is generated and transmitted to the power unit 132. The power unit 132 can determine the distance h between the second mirror 120 and the first mirror 110 according to a preset condition or a lookup table, and adjust the current distance value. Of course, in some embodiments, a control unit 133 can be provided for calculation, comparison or control, which can be a processor unit or other functional unit with corresponding functions, and the power unit 132 is only used to execute the instructions of the control unit 133. That is, in an alternative embodiment, as shown in Figure 1 the adjustment unit 130 further includes a control unit 133 in communication with the light sensing unit 131 and the power unit 132, configured to determine the distance between the first mirror 110 and the second mirror 120 according to the light intensity feedback by the light sensing unit 131, and generate an electrical signal to control the power unit 132 to move the second mirror 120.

[0065] In an alternative embodiment, as shown in Figure 1 the first mirror 110 includes a first mirror body 111 and a first reflective film layer 112 disposed on the side of the first mirror body 111 close to the second mirror 120. The second mirror 120 includes a second mirror body 121 and a second reflective film layer 122 disposed on the side of the second mirror body 121 close to the first mirror 110.

[0066] In the embodiment, the relative arrangement of the first reflective film layer 112 and the second reflective film layer 122 can improve the reflection efficiency of the light in the resonant cavity and improve the overall reflection effect. The first reflective film layer 112 and the second reflective film layer 122 can be transparent films with high reflectivity.

[0067] In a specific embodiment, as shown in Figure 2 and Figure 4 the anti-glare device is taken as a rearview mirror, Figure 4The working process of the anti-dazzle device in the specific embodiment is shown in the schematic diagram. When the rear vehicle light irradiates to the rearview mirror, the light wave passes through the first mirror body 111 and the first reflective film layer 112 in turn, and is reflected and refracted multiple times in the resonant cavity. Due to the corresponding resonance principle, the reflected light I2 and the transmitted light I1 are finally output. The reflected light I2 enters the human eye, and the transmitted light I1 continues to pass through the second reflective film layer 122 and the second mirror body 121. The photosensitive unit 131 detects the intensity I1 of the transmitted light. The control unit 133 can calculate the intensity I0 of the external light and the intensity I2 of the reflected light according to the detected transmitted light I1. If the intensity I0 of the external light or the intensity I2 of the reflected light is large, the control unit 133 drives the power unit 132 to reduce the distance h between the first mirror 110 and the second mirror, so that the intensity I2 of the reflected light is reduced, the overall proportion of the intensity I2 of the reflected light is reduced, and the photosensitive unit 131 monitors the transmitted light I1 in real time, so that the intensity of the light received by the human eye is always maintained in the comfortable interval, that is, the automatic anti-dazzle effect can be achieved.

[0068] In an optional embodiment, the first reflective film 112 is connected with the first mirror body 111 by coating.

[0069] In the embodiment, the first reflective film 112 and the first mirror body 111, and the second reflective film 122 and the second mirror body 121 can be adhered by adhesive or the like, such as optical adhesive. However, such arrangement may affect or be difficult to ensure the flatness of the surfaces of the first mirror 110 and the second mirror 120 and the parallel relationship between the two. In the embodiment, the reflective film and the body are connected by coating. The first reflective film 112 and the second reflective film 122 are coated on the first mirror body 111 and the second mirror body 121 respectively, so that the connection relationship between the two can be better ensured, and the flatness of the surfaces of the first mirror 110 and the second mirror 120 can be controlled.

[0070] In an optional embodiment, as shown in Figure 1 The anti-dazzle device further includes a medium layer 140 arranged between the first mirror 110 and the second mirror 120.

[0071] In the embodiment, the resonant cavity between the first mirror 110 and the second mirror 120 can be provided with a corresponding medium layer 140 for light propagation. Generally, the medium layer 140 can be an air layer. In some specific application scenarios, it can be a transparent gas layer or a transparent liquid layer with a known refractive index. Even in some specific application scenarios, the medium layer 140 can be set to a specific color according to the user's needs, so that the reflected light has a specific color, thereby meeting the user's individual needs.

[0072] In an optional embodiment, the walls and bottom of the receiving groove 101 are made of light-shielding material.

[0073] In this embodiment, in order to ensure the normal function of the resonance, it is necessary to prevent light from entering from other directions. Therefore, the walls and bottom of the receiving groove 101 can be made of light-shielding material to prevent light from entering from these places and affecting the resonance effect.

[0074] As described above, the anti-glare device provided in this application includes: a main body with a receiving groove; a first mirror disposed within the receiving groove; a second mirror disposed within the receiving groove, parallel to the first mirror, with its orthographic projection at the bottom of the receiving groove overlapping the orthographic projection of the first mirror at the bottom of the groove; and an adjustment unit disposed at the bottom of the groove, connected to the side of the second mirror away from the first mirror, configured to adjust the distance between the second mirror and the first mirror to adjust the intensity of light entering from the first mirror and, after interference between the first and second mirrors, emanating from the first mirror. This application controls the intensity of reflected light emanating from the first mirror by controlling the distance between the first and second mirrors, thereby ensuring that the light intensity received by the human eye through the anti-glare device remains within a comfortable range. This achieves the anti-glare purpose through a more precise and flexible control method.

[0075] Based on the same concept, this application also provides an anti-glare method using the anti-glare device described in any of the above embodiments, such as... Figure 5 As shown, it specifically includes:

[0076] Step 201: Determine the light intensity of the light that shines into the receiving groove through the first mirror and the second mirror.

[0077] In this embodiment, the intensity of light entering the receiving groove through the first and second mirrors can be detected by a photosensitive component. After determining the light intensity, either output display operation can be performed, or corresponding control signals or digital signals can be generated for automatic control.

[0078] Step 202: Determine the target distance between the first mirror and the second mirror based on the light intensity.

[0079] In this embodiment, the target distance can be determined according to a preset lookup table.

[0080] Step 203: Adjust the position of the second mirror using the adjustment unit according to the target distance.

[0081] In an optional embodiment, determining the target distance between the first mirror and the second mirror based on the light intensity includes:

[0082] calculate the incident light intensity and the reflected light intensity of the first mirror according to the light intensity;

[0083] In response to the reflected light intensity not meeting the preset threshold, determine a distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity according to a preset correspondence table, and determine the distance value as the target distance.

[0084] In an optional embodiment, the determining of the distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity according to the preset correspondence table comprises:

[0085] In response to the reflected light intensity exceeding the preset threshold, reduce the distance between the first mirror and the second mirror within a set range of the preset correspondence table;

[0086] In response to the reflected light intensity being lower than the preset threshold, increase the distance between the first mirror and the second mirror within the set range of the preset correspondence table.

[0087] In an optional embodiment, the set range is specifically:

[0088] According to the calculation based on the light intensity, a corresponding relationship between the distance and the reflected light intensity is established, and a section in which the distance and the reflected light intensity correspond to each other is selected as the set range according to the corresponding relationship.

[0089] In the embodiment, it can be known from the relationship formula between the reflected light beam intensity I2 and the resonant cavity length h (that is, the distance between the first mirror 110 and the second mirror 120) in the foregoing embodiment that I2 changes periodically with the cavity length h, as shown in FIG. 4. Figure 3 The corresponding relationship between the reflected light intensity I2 and the distance h is a periodic change corresponding relationship, as shown in FIG. 5. Figure 3 In order to ensure that the reflected light beam intensity I2 and the distance h have a one-to-one corresponding value, half a period can be selected in the period, as shown in FIG. 6, the change interval of the distance h is controlled within the half period, and the half period is taken as the set range. Figure 3

[0090] The method of the foregoing embodiment is applied to the anti-glare device in the foregoing embodiment, and the specific content of each step included in the foregoing anti-glare device and the corresponding beneficial effects have been described in the foregoing embodiment, and thus will not be described herein again.

[0091] ​It should be noted that the method of the embodiments of the present application can be executed by a single device, for example, a computer or a server, etc. The method of the embodiments of the present application can also be applied to a distributed scenario, and be completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiments of the present application, and the multiple devices can interact with each other to complete the method.

[0092] It should be noted that the above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the acts or steps recited in the claims can be performed in a different order than those described above and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order to achieve desirable results. In certain implementations, multitasking and parallel processing can be advantageous.

[0093] Based on the same idea, the present application also provides a rearview mirror comprising the anti-dazzle device according to any one of the preceding embodiments.

[0094] The rearview mirror of the above embodiments is used to apply the corresponding anti-dazzle device in the preceding embodiments, and has the beneficial effects of the embodiments with the corresponding anti-dazzle device, which are not repeated here.

[0095] Based on the same idea, the present application also provides a vehicle comprising the rearview mirror according to any one of the preceding embodiments.

[0096] The vehicle of the above embodiments is used to apply the corresponding rearview mirror in the preceding embodiments, and has the beneficial effects of the embodiments with the corresponding rearview mirror, which are not repeated here.

[0097] It should be noted that the above describes some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the acts or steps recited in the claims can be performed in a different order than those described above and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order to achieve desirable results. In certain implementations, multitasking and parallel processing can be advantageous.

[0098] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary, and is not intended to be limiting of the scope of the present application (including the claims) to these examples; the above embodiments or technical features among different embodiments can also be combined, steps can be implemented in any order, and there are many other variations of the aspects of the embodiments of the present application as described above, which are not provided in detail in order to be brief.

[0099] In addition, to simplify the description and discussion, and so as not to obscure the embodiments of the application with details that are well known to those skilled in the art, some conventional attributes of integrated circuit (IC) chips and other components can or can not be shown in the drawings and can not be described. Furthermore, devices can be shown in block diagram form in order to avoid obscuring the embodiments of the application, and this also acknowledges the fact that the details in regard to how such block devices are implemented are highly dependent on the platform within which the embodiments of the application are being implemented (i.e., such details should be readily apparent to those skilled in the art). Where specific details are set forth in order to describe an illustrative embodiment of the application, it should be apparent to those skilled in the art that the embodiment described can not specifically address some nuances, or options or modifications, etc. that can be significant in a non-illustrative embodiment. The description is thus to be considered in all respects as illustrative and not restrictive.

[0100] While the application has been described in connection with specific embodiments thereof, it will be understood that many modifications, substitutions and changes can be made by those skilled in the art without departing from the spirit and scope of the present application. For example, other memory architectures (e.g., dynamic RAM (DRAM)) can use the embodiments discussed.

[0101] It is intended that the embodiments of the present application encompass all such substitutions, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any one or more of the features, functions, compositions and / or embodiments of the application described can be combined in any combination, and the application includes all such combinations and other alternatives within the scope of the appended claims.

Claims

1. An anti-glare device, characterized in that, include: The main body is equipped with a receiving groove; The first mirror surface is disposed within the receiving groove; The second mirror is disposed in the receiving groove and is arranged parallel to the first mirror. The orthographic projection of the first mirror on the bottom of the receiving groove overlaps with the orthographic projection of the first mirror on the bottom of the groove. An adjustment unit, disposed at the bottom of the groove and connected to the side of the second mirror away from the first mirror, is configured to adjust the distance between the second mirror and the first mirror to adjust the intensity of light rays that enter from the first mirror and, after interference between the first and second mirrors, exit from the first mirror; wherein the light intensity changes periodically with the distance between the second and first mirrors, and the adjustment unit is configured to select half a period of the change period to determine the adjustment range of the distance between the second and first mirrors; The adjustment unit includes: A photosensitive unit is disposed on the side of the second mirror away from the first mirror and is configured to sense the intensity of light transmitted through the second mirror; A power unit, disposed at the bottom of the groove and connected to the side of the second mirror away from the first mirror, is configured to control the distance between the second mirror and the first mirror according to the signal from the photosensitive unit.

2. The apparatus according to claim 1, characterized in that, The adjustment unit further includes: The control unit, which is communicatively connected to the photosensitive unit and the power unit, is configured to determine the distance between the first mirror and the second mirror based on the light intensity fed back by the photosensitive unit, and generate an electrical signal to control the power unit to move the second mirror.

3. The apparatus according to claim 1, characterized in that, The first mirror surface includes: First mirror surface main body; The first reflective film layer is disposed on the side of the first mirror body near the second mirror.

4. The apparatus according to claim 3, characterized in that, The first reflective film is connected to the first mirror body by a coating process.

5. The apparatus according to claim 1, characterized in that, The second mirror includes Second mirror main body; The second reflective film layer is disposed on the side of the second mirror body close to the first mirror.

6. The apparatus according to claim 5, characterized in that, The second reflective film is connected to the second mirror body by a coating process.

7. The apparatus according to claim 1, characterized in that, Also includes: A dielectric layer is disposed between the first mirror surface and the second mirror surface.

8. The apparatus according to claim 1, characterized in that, The walls and bottom of the receiving groove are made of light-shielding material.

9. A method for preventing glare using the anti-glare device as described in any one of claims 1 to 8, characterized in that, include: Determine the light intensity of the light that shines into the receiving groove through the first and second mirrors; The target distance between the first mirror and the second mirror is determined based on the light intensity; The position of the second mirror is adjusted using the adjustment unit according to the target distance.

10. The method according to claim 9, characterized in that, Determining the target distance between the first mirror and the second mirror based on the light intensity includes: Calculate the incident light intensity and reflected light intensity of the first mirror based on the light intensity. In response to the reflected light intensity not meeting a preset threshold, a distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity is determined according to a preset lookup table, and the distance value is determined as the target distance.

11. The method according to claim 10, characterized in that, The step of determining the distance value that makes the reflected light intensity meet the preset threshold under the incident light intensity according to the preset lookup table includes: In response to the reflected light intensity exceeding the preset threshold, the distance between the first mirror and the second mirror is reduced within the set range of the preset lookup table; In response to the reflected light intensity being lower than the preset threshold, the distance between the first mirror and the second mirror is increased within the set range of the preset lookup table.

12. The method according to claim 11, characterized in that, The specified range is as follows: Calculations are performed based on the light intensity to establish a correspondence between the distance and the reflected light intensity. A segment in which the distance and the reflected light intensity correspond one-to-one is selected as the set range based on the correspondence.

13. A rearview mirror, characterized in that, Includes the anti-glare device as described in any one of claims 1 to 8.

14. A vehicle, characterized in that, Including the rearview mirror as described in claim 13.

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