Unidirectional visual device and product
By opening windows on the dimming film and setting perspective components, including concave lenses and convex lenses, the existing dimming glass is solved in the privacy leakage in the bright state and in the dark state, and the unidirectional viewing of the glass is realized, improving the privacy and convenience of use of the car.
Patent Information
- Application Number
- CN202421598751.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-08
AI Technical Summary
When the existing dimming glass is in a bright state, people in the car can observe the outside of the car, but people outside the car can also observe the inside of the car, resulting in the leakage of privacy in the car; while in the dark state, people in the car are completely private but people in the car cannot observe the outside of the car, causing inconvenience.
One-way view of the glass is achieved by opening a window on the dimming film and providing a perspective assembly, including a concave lens and a convex lens. The perspective assembly is installed in the accommodating cavity of the dimming film, and the concave lens and the convex lens are arranged in a relative direction along the thickness of the dimming film, ensuring that when the dimming film is in a dark state, people outside the car cannot see the inside of the car, and people inside the car can clearly see the outside of the car.
It is realized that when the dimming film is in a dark state, people in the car can observe outside the car while people outside the car cannot observe inside the car, which improves the privacy and convenience of use of the car.
Smart Images
Figure CN222952554U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of light-transmitting panels, and in particular to a one-way visual device and a product thereof. Background Art
[0002] In daily life, people's awareness of privacy is gradually increasing. On the glass inside and outside some cars or buildings, a dimming film with adjustable light transmittance is usually installed. When necessary, the light transmittance can be reduced to block the view of the outside world.
[0003] However, with existing dimming glass, especially the dimming glass on cars, when the dimming is in the bright state, people inside the car can observe the outside of the car, but people outside the car can also observe the situation inside the car, resulting in privacy leakage inside the car; if the dimming is in the dark state, the inside of the car will be completely private, and people inside the car will not be able to observe the outside of the car, causing inconvenience. Utility Model Content
[0004] In order to solve the above problems, the present application provides a technical solution, including: a one-way visual device; by opening a window on the dimming film and correspondingly arranging a perspective component, the one-way visibility of the glass is achieved.
[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application includes: a one-way visual device, including at least one of a first light-transmitting plate and a second light-transmitting plate, a dimming film and a perspective component, the light-transmitting plate and the dimming film are stacked, and a accommodating cavity is provided along the thickness direction of the dimming film, and the perspective component is arranged in the accommodating cavity; the perspective component includes a concave lens and a convex lens, and the concave lens and the convex lens are relatively arranged along the thickness direction of the dimming film.
[0006] In some embodiments, the concave lens is closer to the first light-transmitting plate than the convex lens.
[0007] In some embodiments, the concave lens is closer to the second light-transmitting plate than the convex lens.
[0008] In some embodiments, the accommodating cavity is formed by at least opening a window on the dimming film, or the accommodating cavity is formed by at least opening a window on the dimming film and opening a notch on the light-transmitting plate.
[0009] In one embodiment, in order to facilitate the installation of the perspective component, the window and the notch are both through holes.
[0010] In one embodiment, in order to improve the stability of the perspective assembly after installation, the window and the notch are both recessed grooves.
[0011] In one embodiment, the window is a through hole, and the notch is a recessed groove.
[0012] In one embodiment, the window is a recessed groove, and the notch is a through hole.
[0013] In some embodiments, when the one-way visual device includes the first light-transmitting plate and the second light-transmitting plate, the dimming film is disposed between the first light-transmitting plate and the second light-transmitting plate.
[0014] In some embodiments, when the one-way visual device includes the first light-transmitting plate and the second light-transmitting plate, the dimming film is disposed between the first light-transmitting plate and the second light-transmitting plate, and the first light-transmitting plate and the second light-transmitting plate are disposed opposite to each other.
[0015] In some embodiments, the concave lens is formed at a position of the first light-transmitting plate corresponding to the window, or the second light-transmitting plate is integrally formed as the convex lens at a position corresponding to the window.
[0016] In some embodiments, the concave lens is formed at a position of the first light-transmitting plate corresponding to the window, and / or the convex lens is formed at a position of the second light-transmitting plate corresponding to the window.
[0017] In some embodiments, the one-way visual device further includes a protective layer, and the protective layer is stacked on one side or two opposite sides of the dimming film along the thickness direction of the dimming film.
[0018] In some embodiments, when the one-way visual device includes only one light-transmitting plate, the protective layer is stacked on a side of the light-shifting film away from the light-transmitting plate at least along the thickness direction of the light-shifting film.
[0019] In some embodiments, the perspective assembly further includes a connecting tube, and the concave lens and the convex lens are respectively disposed at two ends of the connecting tube along the axial direction.
[0020] A product, comprising the one-way visual device, wherein the product comprises any one or a combination of a car, a motorcycle, a ship, a building window curtain wall, a building interior partition wall, a display cabinet, a power distribution cabinet, an information kiosk, and a human-computer interaction.
[0021] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a cross-sectional view of the overall structure of the one-way visual device in Example 1 of the present application;
[0023] Figure 2 This is a cross-sectional view of the specific structure of the one-way visual device in Example 1 of the present application;
[0024] Figure 3 This is a cross-sectional view of the specific structure of yet another embodiment of the one-way visual device in the first embodiment of the present application;
[0025] Figure 4 A structural schematic diagram of yet another embodiment of the perspective assembly provided by the present application;
[0026] Figure 5 A cross-sectional view of another structure of the one-way visual device in the first embodiment of the present application;
[0027] Figure 6 This is a cross-sectional view of the structure of the one-way visual device in the second embodiment of the present application;
[0028] Figure 7 It is a cross-sectional view of another structure of the one-way visual device in the second embodiment of the present application;
[0029] Figure 8 This is a cross-sectional view of the overall structure of the one-way visual device in the third embodiment of the present application;
[0030] Fig. 9 This is a cross-sectional view of the specific structure of the one-way visual device in Example 3 of the present application;
[0031] Fig.10 It is a cross-sectional view of another structure of the one-way visual device in the third embodiment of the present application;
[0032] Fig.11 This is a structural cross-sectional view of the one-way visual device in the fourth embodiment of the present application.
[0033] Reference numerals:
[0034] 1. Light-transmitting plate; 11. First light-transmitting plate; 12. Second light-transmitting plate; 2. Dimming film; 3. Perspective component; 31. Concave lens; 32. Convex lens; 33. Connecting tube; 34. Sealing gasket; 4. Accommodating cavity; 41. Window; 42. First notch; 43. Second notch; 5. Protective layer; 6. Adhesive layer. DETAILED DESCRIPTION
[0035] In order to make the purpose and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0036] It should be noted that in the description of the present application, it should be understood that the terms "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0037] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a one-way visual device, including at least one light-transmitting plate 1 of a first light-transmitting plate 11 and a second light-transmitting plate 12, a dimming film 2 and a perspective component 3; the light-transmitting plate 1 and the dimming film 2 are stacked together, and a receiving cavity 4 is provided along the thickness direction of the dimming film 2, and the perspective component 3 includes a concave lens 31 and a convex lens 32 correspondingly arranged in the receiving cavity 4. The one-way visual device provided by the present application can realize one-way visibility of glass when the dimming film 2 is in a dark state, so as to better meet the use requirements.
[0038] The material of the light-transmitting plate 1 can be a light-transmitting plate-like member such as tempered glass, ordinary glass or organic glass. The light-transmitting plate 1 can be curved or flat. The dimming film 2 is a component that performs dimming by electrical control. The material of the dimming film 2 can be one or a combination of two or more of a PDLC component, an EC component, an SPD component, and a PLSC component. The dimming film 2 has a dark state and a bright state. In the dark state, the transmittance of the dimming film 2 is preferably ≤10%; in the bright state, the transmittance of the dimming film 2 is preferably ≥60%. The one-way visual device also includes an adhesive layer 6 for fixing the light-transmitting plate 1 and the dimming film 2 together. The adhesive layer 6 can be an adhesive material such as PVB, EVA, TPU, or a material with an adhesive function such as liquid optical transparent adhesive (LOCA).
[0039] Furthermore, the one-way visual device further comprises a protective layer 5, which is stacked on one side or two opposite sides of the dimming film 2 along the thickness direction of the dimming film 2. The material of the protective layer 5 is preferably PI, which is insulating and has strong stability, and can well protect the dimming film 2. It should be noted that, if Figure 2 and Figure 3 As shown, when the one-way visual device includes only one light-transmitting plate 1 , the protective layer 5 is stacked on a side of the light-shifting film 2 away from the light-transmitting plate 1 at least along the thickness direction of the light-shifting film 2 .
[0040] The concave lens 31 and the convex lens 32 are preferably circular and have the same diameter. The concave lens 31 can be a single-sided concave mirror or a double-sided concave mirror, and the convex lens 32 can be a single-sided convex mirror or a double-sided convex mirror. According to optical principles, one side of the convex lens 32 is set as an observation point to achieve one-way visibility. However, when there is only one light-transmitting plate 1, the concave lens 31 can be located on the side of the convex lens 32 close to the light-transmitting plate 1, and the concave lens 31 can also be located on the side of the convex lens 32 close to the light-transmitting plate 1. Specifically, in this embodiment, the light-transmitting plate 1 close to the side of the concave lens 31 is set as the first light-transmitting plate 11, and the light-transmitting plate 1 close to the side of the convex lens 32 is set as the second light-transmitting plate 12.
[0041] When specifically applied to vehicle glass, the concave lens 31 is preferably arranged to be located on the side of the convex lens 32 close to the first light-transmitting plate 11, that is, the convex lens 32 is close to the outside of the vehicle and the concave lens 31 is close to the inside of the vehicle. When the light outside the vehicle passes through the concave lens 31, it will be refracted, so that the person or object outside the vehicle forms a positive, reduced virtual image, and the virtual image is located within the focus of the convex lens 32. When the observer inside the vehicle observes through the convex lens 32, the convex lens 32 enlarges the virtual image into a positive virtual image, which is just near the clear vision distance of the human eye, so the observer can clearly see the situation outside the vehicle. Moreover, when the dimming film 2 is in a dark state, the person outside the vehicle cannot view the situation inside the vehicle through the dimming film 2. Even when observing into the vehicle through the perspective component 3, because the focal length of the concave lens 31 is extremely short, the light diverges after passing through the concave lens 31 and cannot form a clear image, so the person outside the vehicle can only see a bright spot or a blurred shadow, and cannot see the specific situation inside the vehicle.
[0042] The number of the concave lens 31 and the convex lens 32 can be set to one or more. When the one-way visual device is applied to a vehicle, the number of the concave lens 31 and the convex lens 32 is preferably one; when the one-way visual device is applied to a scene such as a building where thicker glass can be used, the number of the concave lens 31 can be set to multiple. It should be noted that the space between the concave lens 31 and the convex lens 32 needs to be kept in a vacuum, or filled with a transparent colorless gas, liquid or solid, or directly filled with a transparent adhesive layer 6 material.
[0043] like Figure 4As shown, further, the perspective assembly 3 also includes a connecting tube 33, and the concave lens 31 and the convex lens 32 are respectively arranged at the two ends of the connecting tube 33 along the axial direction. The concave lens 31 and the convex lens 32 are inserted into the connecting tube 33 or fixed on the end surface of the connecting tube 33. At this time, the perspective assembly 3 is a cylindrical integrated structure, which is more stable and easy to install. In addition, a sealing gasket 34 is also circumferentially arranged on the outer side wall of the perspective assembly 3. The material of the sealing gasket 34 can be a rubber or other elastic material to further improve the stability of the connection structure. When the perspective assembly 3 only includes the concave lens 31 and the convex lens 32, the sealing gasket 34 is connected to the side surfaces of the concave lens 31 and the convex lens 32. When the perspective assembly 3 also includes the connecting tube 33, the sealing gasket 34 is connected to the side surface of the connecting tube 33.
[0044] Embodiment 1
[0045] In some embodiments, the one-way visual device includes a first light-transmitting plate 11, an adhesive layer 6, a dimming film 2, and a protective layer 5 stacked in sequence. The accommodating cavity 4 is formed by at least opening a window 41 on the dimming film 2, and the perspective component 3 is installed in the window 41 of the dimming film 2. The perspective component 3 is first fixed in the dimming film 2, and then the dimming film 2 and the first light-transmitting plate 11 are fixed, and the protective layer 5 can also be covered.
[0046] In one embodiment, in order to facilitate the installation of the perspective assembly 3, as shown in FIG. Figure 2 As shown, the window 41 can be a through hole, that is, a receiving cavity 4 can be dug through the dimming film 2, the diameter of the receiving cavity 4 is not less than the diameter of the perspective component 3, and then the perspective component 3 is installed in the receiving cavity 4; or, the diameter of the receiving cavity 4 is smaller than the diameter of the perspective component 3, so that the perspective component 3 can be inserted into the receiving cavity 4 with an interference fit.
[0047] In another embodiment, in order to improve the stability of the installation structure of the perspective assembly 3, as shown in FIG. Figure 5 As shown, the window 41 can be a sink, that is, there is a distance between the bottom wall of the accommodating cavity 4 and the surface of the dimming film 2. The perspective component 3 is first fixed at a specified position, and then integrally formed with the dimming film 2, so that the perspective component 3 is embedded in the dimming film 2, reducing the possibility of the perspective component 3 loosening. It should be noted that the dimming film 2 maintains a light-transmitting state along the thickness direction corresponding to the position of the accommodating cavity 4, and its light transmittance is preferably ≤5% to ensure that the field of view of the observation point can pass through the convex lens 32 and the concave lens 31.
[0048] Embodiment 2
[0049] The difference between the second embodiment and the first embodiment is that the accommodating cavity 4 is formed by at least opening a window 41 on the dimming film 2 and opening a notch on the light-transmitting plate 1. Specifically, the notch opened on the first light-transmitting plate 11 is a first notch 42, and the notch opened on the second light-transmitting plate 12 is a second notch 43. The diameters of the notch and the window 41 are preferably the same, and a through hole is correspondingly opened on the adhesive layer 6, and the perspective component 3 is installed in the dimming film 2 and the first light-transmitting plate 11 through the accommodating cavity 4.
[0050] In this embodiment, the one-way visual device having only one first light-transmitting plate 11 is taken as an example for description.
[0051] In one embodiment, in order to facilitate processing and manufacturing, Figure 6 As shown, the first notch 42 penetrates the first light-transmitting plate 11, and the window 41 on the dimming film 2 can be set through, or set to be a non-through recessed groove from the side close to the first light-transmitting plate 11. When the light-transmitting component is a separate concave lens 31 and convex lens 32, the convex lens 32 can be fixed in the dimming film 2, and the concave lens 31 can be fixed in the first light-transmitting plate 11; when the light-transmitting component is an integrated structure, the end of the light-transmitting component close to the convex lens 32 can be inserted into the accommodating cavity 4 through the first notch 42.
[0052] In another embodiment, if Figure 7 As shown, there is a distance between the bottom wall of the first notch 42 and the surface of the first light-transmitting plate 11 , that is, the perspective component 3 can be inserted into the accommodating cavity 4 first, and then the first fixing plate and the dimming film 2 are fixed together.
[0053] Embodiment 3
[0054] In this embodiment, the one-way visual device is described by taking the first light-transmitting plate 11 and the second light-transmitting plate 12 as an example. Figure 8 As shown, the one-way visual device comprises a first light-transmitting plate 11, an adhesive layer 6, a dimming film 2, an adhesive layer 6 and a second light-transmitting plate 12 stacked in sequence. The perspective assembly 3 is installed between the first light-transmitting plate 11 and the second light-transmitting plate 12. Specifically, the first light-transmitting plate 11 can be used as the outer glass in the automotive laminated glass, and the second light-transmitting plate 12 can be used as the inner glass.
[0055] In one embodiment, if Fig. 9 As shown, a window 41 is provided on the dimming film 2 to form a receiving cavity 4, and the light-transmitting component is installed in the receiving cavity 4, and then the first light-transmitting plate 11 and the second light-transmitting plate 12 are pressed on both sides of the dimming film 2. The adhesive layers 6 on both sides are pressed and attached to the opposite sides of the convex lens 32 and the concave lens 31.
[0056] In another embodiment, if Fig.10As shown, the first light-transmitting plate 11 and the second light-transmitting plate 12 are provided with a first notch 42 and a second notch 43 at positions corresponding to the window 41, respectively. The first notch 42, the window 41 and the second notch 43 are sequentially connected to form the accommodating cavity 4, and the first notch 42 and the second notch 43 can be through holes respectively penetrating the first light-transmitting plate 11 and the second light-transmitting plate 12, or can be recessed grooves provided from the surfaces opposite to each other of the first light-transmitting plate 11 and the second light-transmitting plate 12. The perspective component 3 is embedded in the accommodating cavity 4.
[0057] Embodiment 4
[0058] In some embodiments, different from the above embodiments, Fig.11 As shown, when molding the first light-transmitting plate 11, the position of the first light-transmitting plate 11 corresponding to the accommodating cavity 4 can be integrally molded into a concave shape to form a concave lens 31; when molding the second light-transmitting plate 12, the position of the second light-transmitting plate 12 corresponding to the window 41 can be integrally molded into a convex shape to form a convex lens 32, and the observation point is located on one side of the second light-transmitting plate 12, so that when the dimming film 2 is in a dark state, one-way visibility from the second light-transmitting plate 12 toward the first light-transmitting plate 11 can be achieved.
[0059] Furthermore, in one embodiment of the present invention, a product is also provided, the product includes the above-mentioned one-way visual device, the product is selected from any one or combination of automobiles, locomotives, ships, building window curtain walls, building interior partitions, display cabinets, distribution cabinets, information kiosks, and human-computer interactions, and the one-way visual device is applied to the product.
[0060] The product in this embodiment takes a car as an example, and the one-way visual device can be used to make a car window. The car can be unmanned or have an automatic driving function. The product can be a side window glass, a rear windshield, a sunroof or a front windshield. The first light-transmitting plate 11 can be used as the outer glass in the laminated glass of the car, and the second light-transmitting plate 12 is used as the inner glass. The concave lens 31 is preferably arranged to be located on the side of the convex lens 32 close to the first light-transmitting plate 11, that is, the convex lens 32 is close to the outside of the car and the concave lens 31 is close to the inside of the car. When the dimming film 2 is adjusted to a low transmittance, people outside the car cannot see the inside of the car through the dimming film 2. Even when observing the inside of the car through the perspective component 3, only a bright spot or a blurred shadow can be seen when the light outside the car passes through the concave lens 31; people inside the car cannot see the outside of the car through the parts outside the accommodating cavity 4, but people inside the car can clearly see the situation outside the car through the perspective component 3. The privacy of the car is effectively improved.
[0061] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A one-way visual device, characterized in that: include: At least one of the first and second light-transmitting plates, a dimming film and a perspective component, the light-transmitting plate and the dimming film are stacked, at least one accommodating cavity is provided along the thickness direction of the dimming film, and the perspective component is arranged in the accommodating cavity; the perspective component includes a concave lens and a convex lens, and the concave lens and the convex lens are relatively arranged along the thickness direction of the dimming film.
2. A one-way visual device according to claim 1, characterized in that: The concave lens is closer to the first light-transmitting plate than the convex lens, or the concave lens is closer to the second light-transmitting plate than the convex lens.
3. A one-way visual device according to claim 1, characterized in that: The accommodating cavity is formed by at least opening a window on the dimming film, or the accommodating cavity is formed by at least opening a window on the dimming film and opening a notch on the light-transmitting plate.
4. A one-way visual device according to claim 3, characterized in that: The window is a through hole or a sink groove, and the notch is a through hole or a sink groove.
5. A one-way visual device according to claim 4, characterized in that: When the window is a recessed groove, the dimming film maintains a light-transmitting state at a position corresponding to the window along the thickness direction thereof.
6. A one-way visual device according to claim 1, characterized in that: When the one-way visual device includes the first light-transmitting plate and the second light-transmitting plate, the dimming film is disposed between the first light-transmitting plate and the second light-transmitting plate.
7. A one-way visual device according to claim 1, characterized in that: The concave lens is formed at a position of the first light-transmitting plate corresponding to the window, and / or the convex lens is formed at a position of the second light-transmitting plate corresponding to the window.
8. The one-way visual device according to claim 1, characterized in that: The one-way visual device further includes a protective layer, and the protective layer is stacked on one side or two opposite sides of the dimming film along the thickness direction of the dimming film.
9. The one-way visual device according to claim 1, characterized in that: The perspective assembly further comprises a connecting tube, and the concave lens and the convex lens are respectively arranged at two ends of the connecting tube along the axial direction.
10. A product, characterized in that The one-way visual device comprises any one of claims 1 to 9, wherein the product comprises any one or a combination of a car, a motorcycle, a ship, a building window curtain wall, a building interior partition wall, a display cabinet, a distribution cabinet, an information kiosk, and a human-computer interaction.