Vehicle-mounted sun shield lens and sun shield
By using high molecular polymer films and magnetron sputtering layers bonded to glass substrates in vehicle-mounted sun visor lenses, and combining them with annular light strips to adjust lighting, the safety, production process and environmental protection issues of traditional lenses are solved, and efficient, safe and low-cost lens manufacturing is achieved.
Patent Information
- Application Number
- CN202422077278.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Traditional car sun visor lenses have defects in safety, production process, environmental performance and cost. The glass is fragile, complex to manufacture and pollutes the environment.
A high molecular polymer film is used as the carrier film, and the magnetron sputtering metal layer is bonded to the glass substrate to avoid the direct use of thick glass. The annular light strip is combined to adjust the lighting, use low-cost defective glass and simplify the manufacturing process.
It improves safety and mirror quality, reduces production costs and environmental pollution, enhances the stability and reflectivity of the lens, and improves the lighting comfort of the cab.
Smart Images
Figure CN223327098U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle-mounted lenses and their manufacturing, and in particular relates to a vehicle-mounted sun visor lens and a sun visor. Background Art
[0002] With the rapid development of the automotive industry, the quality and functionality of car interiors have become important factors for consumers when choosing a car. As a key component of car interiors, car sun visors must not only have excellent reflective properties to meet daily use needs, but also take into account safety, durability, and environmental considerations.
[0003] While traditional vehicle sun visor lenses generally meet reflectivity requirements, they suffer from certain deficiencies in safety, production processes, environmental performance, and functionality. Regarding safety, because traditional lenses rely on glass panels for reflection, impact can easily cause the glass to shatter and scatter, threatening the safety of drivers and passengers. Regarding production processes, the manufacture of traditional lenses requires transporting glass sheets from the glass factory to the mirror factory for coating, and then to the assembly plant for assembly. This not only increases transportation costs but also easily causes glass breakage during transport. Regarding environmental protection, the large amount of silver nitrate solution used in the traditional lens silver plating process generates a large amount of waste liquid, posing a potential threat to the environment. Regarding production costs, traditional lenses require the use of thick, high-quality, flawless glass lenses, which not only limits the choice of raw materials but also increases production costs. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a vehicle-mounted sun visor lens and a sun visor.
[0005] The first aspect of the utility model provides a vehicle sun visor lens including a carrier film, a magnetron sputtering layer located on the front side of the carrier film, an adhesive layer located on the rear side of the carrier film, and a glass substrate located on the rear side of the adhesive layer; the carrier film is a high molecular polymer film, and a metal material is magnetron sputtered and deposited on the front side of the carrier film to form a magnetron sputtering layer with reflective properties, and the adhesive layer bonds the front surface of the glass substrate to the rear surface of the carrier film.
[0006] As a further optimization solution for the vehicle sun visor lens, the glass substrate is cut from float glass into a preset shape and size.
[0007] As a further optimization solution for the vehicle sun visor lens, at least one of the front and rear surfaces of the glass substrate has a scratch defect.
[0008] As a further optimization solution for the vehicle sun visor lens, the thickness of the glass substrate is in the range of 0.7mm to 2.5mm.
[0009] As a further optimization solution for the vehicle sun visor lens, the thickness of the glass substrate is selected from any one of 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, and 1.5 mm.
[0010] As a further optimization solution for the vehicle sun visor lens, the carrier film is a polyethylene terephthalate film with a thickness ranging from 0.02mm to 0.50mm.
[0011] As a further optimization solution for the vehicle sun visor lens, the magnetron sputtering layer is a metal reflective layer formed by magnetron sputtering deposition of one or more metal materials selected from metallic silver and metallic aluminum onto the front side of the carrier film.
[0012] As a further optimization solution for the vehicle sun visor lens, before magnetron sputtering the metal, a primer treatment layer is pre-coated on the front side of the carrier film; after magnetron sputtering the metal, a protective layer is coated on the front side of the magnetron sputtering layer.
[0013] The second aspect of the utility model is to provide a sun visor, comprising a sun visor body and a reflective lens installed on one side of the sun visor body; an installation window is provided on at least one side surface of the sun visor body, and a covering edge is formed along the installation window; the reflective lens is placed in the installation window, and the edge of the front surface of the reflective lens is covered by the covering edge; the reflective lens used is the above-mentioned vehicle-mounted sun visor lens, and the magnetron sputtering layer exposes the installation window.
[0014] As a further optimization scheme for the sun visor, an annular luminous strip is provided along the covering edge on the front side of the sun visor body, and the annular luminous strip has adjustable brightness and color temperature; a button mounting hole is provided on the reflective lens, and a switch button is provided at the button mounting hole to adjust the switch and luminous intensity of the annular luminous strip, and a color temperature adjustment button is also provided at the button mounting hole to adjust the luminous wavelength distribution of the annular luminous strip.
[0015] Beneficial effects
[0016] Compared with existing technologies, the vehicle sun visor lens provided by the present invention, whose carrier film, magnetron sputtering layer, adhesive layer, and glass substrate cooperate with each other, has significant advantages in safety, mirror quality, production cost, and environmental protection. Based on this vehicle sun visor lens, the present invention also provides a safe sun visor with a good mirror effect.
[0017] The carrier film not only carries the magnetron sputtering layer, but also plays the role of adhering to and blocking glass fragments when the sun visor lens is impacted, preventing glass fragments from flying outward, thereby improving the safety of drivers and passengers.
[0018] The carrier film and the glass substrate are bonded together by gluing or other means, which enhances the stability of the overall structure and allows the glass substrate to be made thinner and lighter while still maintaining sufficient impact resistance.
[0019] The magnetron sputtering layer is deposited uniformly in a high vacuum environment, ensuring the smoothness and reflectivity of the mirror surface, improving the mirror quality. The glass substrate provides stable support, ensuring the flatness and clarity of the magnetron sputtering mirror surface even in temperature fluctuations and vibration environments.
[0020] In terms of cost, the car visor lens avoids the complex transfer and heating and drying steps in the traditional lens manufacturing process, reducing breakage rate and transportation costs; moreover, low-cost defective glass can be used as the substrate. These glasses are usually not suitable for high-quality optical products due to surface defects, but in this application these defects will not affect the use effect of the lens, thereby reducing the cost of raw materials.
[0021] In terms of the environment, the car sun visor lens can make full use of defective glass to reduce the amount of waste and lower the energy consumption required to remelt the glass. In addition, the manufacture of the car sun visor lens avoids the large amount of silver nitrate solution used in the traditional silver plating process, reducing potential harm to the environment.
[0022] The sun visor provided by the utility model improves the lighting comfort and safety of the cab by integrating a ring-shaped luminous strip with adjustable brightness and color temperature and using a vehicle-mounted sun visor lens with excellent safety and mirror effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the structure of the vehicle sun visor lens.
[0024] Figure 2 for Figure 1 A partial magnified view of the middle X area.
[0025] Figure 3 Schematic diagram of the structure of the sun visor.
[0026] In the figure: 1. Magnetron sputtering layer; 2. Carrier film; 3. Adhesive layer; 4. Glass substrate; 6. Sun visor body; 7. Reflective lens; 8. Annular light strip; 9. Color temperature adjustment button; 10. Switch button; 61. Cover edge. DETAILED DESCRIPTION
[0027] The present invention is further illustrated below through examples, which are intended to more clearly illustrate the technical solution of the present invention and should not be construed as limiting the present invention.
[0028] In the embodiment, for the convenience of description, the front and rear sides of the vehicle sun visor lens are both referenced to the user, the side facing the user during use is the front side, and the side facing away from the user is the rear side.
[0029] Example 1
[0030] like Figure 1 and Figure 2 The vehicle sun visor lens shown includes a carrier film 2, a magnetron sputtering layer 1 located on the front side of the carrier film 2, an adhesive layer 3 located on the rear side of the carrier film 2, and a glass substrate 4 located on the rear side of the adhesive layer 3; the carrier film 2 is a polymer film, and a metal material is magnetron sputtered and deposited on the front side of the carrier film 2 to form the magnetron sputtering layer 1 with reflective properties, and the adhesive layer 3 bonds the front surface of the glass substrate 4 to the rear surface of the carrier film 2.
[0031] The magnetron sputtering layer 1 on the front side of the carrier film 2 is reflective and serves as a mirror facing the user. Magnetron sputtering is a thin film deposition technology. When preparing the magnetron sputtering layer 1 by magnetron sputtering, the carrier film 2 is fixed to the base holder of the magnetron sputtering equipment, and the vacuum chamber is evacuated to a high vacuum state to reduce interference from gas molecules. A plasma is generated between the metal target and the carrier film 2 by applying a DC or AC voltage, and a magnetic field is set near the metal target to improve the sputtering efficiency. Under the action of the electric field, positive ions are accelerated to collide with the target surface, causing the target atoms to be sputtered out and evenly deposited on the surface of the carrier film 2, forming a reflective metal film, namely the magnetron sputtering layer 1. Because magnetron sputtering is carried out under high vacuum conditions, the sputtered particles are evenly deposited on the surface of the carrier film 2 with extremely low interference to form a thin and flat magnetron sputtering layer 1, resulting in an excellent crystal surface effect.
[0032] The carrier film 2, made of a high-molecular polymer film with excellent flexibility, serves as both a carrier for the magnetron sputtered layer 1 and a protective layer for the rear glass substrate 4. If the sun visor lens is impacted and ruptures, the carrier film 2 acts as both a carrier for the glass fragments and a barrier, preventing them from flying outward and significantly improving safety. Furthermore, the adhesion of the glass substrate 4 to the carrier film 2 enhances its impact resistance, thereby reducing its thickness.
[0033] The glass substrate 4 is adhered to the rear side of the carrier film 2 by the adhesive layer 3. The glass substrate 4 itself has a high degree of flatness, providing smooth support for the carrier film 2 and the magnetron sputtered layer 1, ensuring the flatness of the magnetron sputtered layer 1. Even in high-temperature and vibration scenarios, the glass substrate 4 provides excellent rigidity and flatness, ensuring a mirror-like finish.
[0034] As described above, the combination of the carrier film 2, magnetron sputtering layer 1, adhesive layer 3, and glass substrate 4 provides the vehicle sun visor lens with excellent safety, stability, and mirror-like effect. Furthermore, the manufacture of traditional glass lenses requires the glass sheets to be transported from the glass factory to the mirror manufacturing factory for lens production, and then transported to the assembly factory after manufacturing. The heating and drying process during the mirror manufacturing process results in a certain breakage rate of the original glass sheets. The multiple transport processes also increase the risk of glass wear and scratches. Furthermore, the silver plating process in the mirror manufacturing process uses large amounts of silver nitrate and ammonia solution, posing a significant potential hazard to the environment. The vehicle sun visor lens of this embodiment circumvents the mirror manufacturing and extensive transport processes, and the glass substrate 4 is positioned at the rear and does not perform reflective or light-transmitting functions. Even if it is worn or scratched, it does not affect the mirror effect.
[0035] The glass substrate 4, a low-cost, highly flat support component, can be manufactured using methods such as float, grid, rolling, and casting. Preferably, the glass substrate 4 in this embodiment is formed from float glass or grid glass cut to a predetermined shape and size. Using float glass as the glass substrate 4 helps improve the flatness and reflective quality of the magnetron sputtered layer 1. The float glass manufacturing process involves pouring molten glass into a large tank filled with molten tin. Due to the different densities and incompatibility of glass and tin, a flat layer of glass forms on the tin surface, which then cools to form a glass sheet. This process produces a very flat float glass sheet with uniform thickness. Using grid glass as the glass substrate 4 not only offers excellent flatness but also helps further reduce costs. Commercially available grid glass is often made from recycled glass, resulting in lower costs. The glass substrate 4 used in the sun visor lens of this embodiment does not directly reflect or transmit light. Therefore, using recycled grid glass as the glass substrate 4 does not compromise the reflective quality.
[0036] As mentioned above, the glass substrate 4 used in the vehicle sun visor lens of this embodiment does not directly reflect or transmit light, so low-cost, scratched, defective glass can be selected. Specifically, at least one of the front and rear surfaces of the glass substrate 4 has scratches. Due to the high production volume of float glass and the extensive transportation involved in its production and subsequent processing, scratched, defective glass is readily available at a very low cost. The vehicle sun visor lens of this embodiment can absorb some of this defective glass, reducing the additional energy consumption required to remelt and reprocess the defective glass.
[0037] As described above, the glass substrate 4 in the vehicle sun visor lens of this embodiment does not require the extensive transport and heating and drying steps required during the lens manufacturing process. Furthermore, the glass substrate 4 is bonded to the carrier film 2 via the adhesive layer 3, effectively withstanding the impact and vibration experienced during use. Therefore, a thinner glass sheet can be used. Preferably, the thickness of the glass substrate 4 in this embodiment is within the range of 0.7 mm to 2.5 mm, and in particular, a glass sheet with a thickness not exceeding 1.5 mm can be selected, for example, from any of 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, and 1.5 mm. Of course, in other embodiments, thicker glass sheets can also be used as the glass substrate 4.
[0038] Preferably, in this embodiment, the carrier film 2 is a polyethylene terephthalate film with a thickness ranging from 0.02 mm to 0.50 mm. Polyethylene terephthalate (PET) is chemically stable. When used in a vehicle, the resulting PET film can withstand high summer temperatures without deformation and low winter temperatures without losing its flexibility. A PET film with a thickness ranging from 0.02 mm to 0.50 mm forms a barrier with sufficient toughness and strength to effectively prevent the glass substrate 4 from accidentally breaking and scattering fragments.
[0039] The magnetron sputtering layer 1 serves as a reflective layer. In this embodiment, metallic silver is magnetron sputtered onto the front side of the carrier film 2 to form the magnetron sputtering layer 1. In other embodiments, other metal layers, such as one or more of aluminum, chromium, nickel, and silver, may also be magnetron sputtered onto the surface of the carrier film 2.
[0040] In other embodiments, to ensure that the magnetron sputtered layer 1 is more firmly bonded to the surface of the carrier film 2 and that the resulting magnetron sputtered layer 1 has better surface properties, a silane coupling agent may be pre-coated on the front side of the carrier film 2 to form a primer before magnetron sputtering the metal. After magnetron sputtering the metal, a hardening layer or AF coating layer may be formed on the front side of the magnetron sputtered layer 1. The hardening layer may be a silicon-based hard film coating, and the AF coating layer may be a fluorine-based polymer coating.
[0041] Example 2
[0042] like Figure 3 The illustrated sun visor is used in the driving and passenger areas of vehicles, such as sedans, SUVs, and trucks. The sun visor comprises a generally rectangular sun visor body 6 and a reflective lens 7 mounted on one side of the sun visor body 6. The sun visor body 6 has a back panel on one side and a front panel on the other. The front panel defines an installation window, along which a covering edge 61 is formed. The reflective lens 7 is positioned within the installation window, sandwiched between the back panel and the front panel. The front edge of the reflective lens 7 is covered by the covering edge 61. The reflective lens 7 is the aforementioned vehicle sun visor lens. Its magnetron sputtered layer 1 is exposed through the installation window to face the user during use.
[0043] An annular light strip 8 is located along the front edge 61 of the sun visor body 6. It features adjustable brightness and color temperature. The reflective lens 7 includes mounting holes for buttons, where an on / off button 10 is located to adjust the on / off and luminous intensity of the annular light strip 8. A color temperature adjustment button 9 is also located to adjust the wavelength distribution of the annular light strip 8. A control circuit board is located within the sun visor, electrically connecting the annular light strip 8, the power supply, the on / off button 10, and the color temperature adjustment button 9. The control circuit board adjusts the illumination of the annular light strip 8 based on these two buttons. When the user presses the on / off button 10, the control circuit board powers on the annular light strip 8, turning it on. The brightness is initially set to its lowest setting. Repeated presses gradually increase the brightness of the annular light strip 8. Once the brightness reaches its maximum, pressing the on / off button 10 again disconnects the power supply. The color temperature adjustment button 9 allows the user to adjust the color temperature of the light emitted by the annular light strip 8.
[0044] Color temperature adjustment can be achieved using pulse-width modulation (PWM) dimming technology. Specifically, the annular light strip 8 contains two LEDs with different color temperatures: warm white and cool white. PWM technology is then used to control the brightness of these two LEDs, thereby changing the ratio between them and adjusting the overall color temperature. For example, if the annular light strip 8 contains both a 2700K warm white LED and a 6500K cool white LED, when the user desires a warmer color temperature, the control circuit board will send a higher PWM duty cycle to the warm white LED and a lower PWM duty cycle to the cool white LED. This makes the warm white LED appear brighter, while the cool white LED appears dimmer, resulting in an overall color temperature closer to warm white.
[0045] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included within the scope of protection of the present invention.
Claims
1. A vehicle-mounted sun visor lens, characterized in that: The invention comprises a carrier film (2), a magnetron sputtering layer (1) located on the front side of the carrier film (2), an adhesive layer (3) located on the rear side of the carrier film (2), and a glass substrate (4) located on the rear side of the adhesive layer (3); the carrier film (2) is a polymer film, a metal material is deposited on the front side of the carrier film (2) by magnetron sputtering to form a magnetron sputtering layer (1) with reflective properties, and the adhesive layer (3) bonds the front side surface of the glass substrate (4) to the rear side surface of the carrier film (2).
2. The vehicle-mounted sun visor lens according to claim 1, characterized in that: The glass substrate (4) is formed by cutting float glass or spacer glass into a preset shape and size.
3. The vehicle-mounted sun visor lens according to claim 1, characterized in that: At least one of the front and rear surfaces of the glass substrate (4) has a scratch defect.
4. The vehicle-mounted sun visor lens according to claim 1, characterized in that: The thickness of the glass substrate (4) is in the range of 0.7 mm to 2.5 mm.
5. The vehicle-mounted sun visor lens according to claim 1, characterized in that: The thickness of the glass substrate (4) is selected from any one of 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, and 1.5 mm.
6. The vehicle-mounted sun visor lens according to claim 1, characterized in that: The carrier film (2) is a polyethylene terephthalate film with a thickness in the range of 0.02 mm to 0.50 mm.
7. The vehicle-mounted sun visor lens according to claim 1, characterized in that: The magnetron sputtering layer (1) is a metal reflective layer formed by magnetron sputtering and depositing one or more metal materials selected from metal silver and metal aluminum onto the front side of the carrier film (2).
8. The vehicle-mounted sun visor lens according to claim 7, characterized in that: Before magnetron sputtering the metal, the front side of the carrier film (2) is pre-coated to form a primer treatment layer; after magnetron sputtering the metal, the front side of the magnetron sputtering layer (1) is coated to form a protective layer.
9. A sun visor, characterized in that: The invention comprises a sun visor body (6) and a reflective lens (7) installed on one side of the sun visor body (6); a mounting window is provided on at least one side surface of the sun visor body (6), and a covering edge (61) is formed along the mounting window; the reflective lens (7) is placed in the mounting window, and the edge of the front surface of the reflective lens (7) is covered by the covering edge (61); the reflective lens (7) is the vehicle-mounted sun visor lens according to any one of claims 1 to 8, and the magnetron sputtering layer (1) exposes the mounting window.
10. The sun visor according to claim 9, characterized in that: An annular luminous strip (8) is provided on the front side of the sun visor body (6) along the covering edge (61), and the annular luminous strip (8) has adjustable brightness and adjustable color temperature; a button mounting hole is provided on the reflective lens (7), and a switch button (10) is provided at the button mounting hole to adjust the switch and luminous intensity of the annular luminous strip (8), and a color temperature adjustment button (9) is also provided at the button mounting hole to adjust the luminous wavelength distribution of the annular luminous strip (8).