Waterproof laser film with high light condensation efficiency

Abstract

The utility model discloses a waterproof type laser film of high -efficient light -condensing, including top layer, protection layer, transition layer, optical layer and bottom, the utility model discloses a top layer of setting at the top of protection layer can provide first waterproof function for laser film, and the transition layer of protection layer bottom can carry out secondary protection, and form double protection, can effectively improve the waterproof effect of laser film, prolong the service life of laser film, and guarantee the appearance stability, and the transition layer bottom is connected with optical layer, and the optical layer includes medium layer and grating groove etc. component, and the reflection efficiency of waveband light can be improved under mutual cooperation, thereby the light -condensing effect of laser film is improved significantly, satisfies people's use demand, has stronger practicality.

Description

Technical Field

[0001] This utility model relates to the field of laser film technology, specifically to a highly efficient light-concentrating waterproof laser film. Background Technology

[0002] Laser film is a material that uses laser technology to form an optical thin film on the surface of a film. It has optical properties such as anti-reflection, reflection, and polarization. It usually uses computer dot matrix lithography, 3D true color holography, and multiple and dynamic imaging technology to transfer holographic images with rainbow dynamic and three-dimensional effects onto PET, BOPP, PVC or coated substrates through molding. Then, it uses methods such as lamination, hot stamping, and transfer to give the surface of the product packaging a certain laser effect.

[0003] Some existing laser films still have defects such as insufficient light-gathering efficiency and poor waterproof performance. The reflected light is easily dispersed, making it difficult to achieve high-intensity directional light gathering, which affects the visual effect and optical recognition of the laser film. In addition, in humid or outdoor environments, the laser film is easily corroded by water vapor, which leads to a decrease in reflectivity and affects its service life, thus having certain limitations. Utility Model Content

[0004] The purpose of this invention is to provide a highly efficient light-concentrating waterproof laser film to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency light-concentrating waterproof laser film, comprising a top layer, a protective layer connected to the bottom surface of the top layer, a transition layer connected to the bottom end of the protective layer, an optical layer provided at the bottom end of the transition layer, and a bottom layer connected to the bottom end of the optical layer;

[0006] The optical layer includes a dielectric layer and a grating groove. There are at least two sets of dielectric layers, and the top surface of the uppermost set of dielectric layers is provided with a grating groove.

[0007] Preferably, the dielectric layer includes an upper dielectric film and a lower dielectric film, the upper dielectric film is connected to the top surface of the lower dielectric film, and a grating groove is formed on the top surface of the upper dielectric film.

[0008] Preferably, the upper dielectric film has a lower refractive index than the lower dielectric film, and the upper and lower dielectric films are stacked alternately.

[0009] Preferably, the grating groove is a continuous sawtooth groove, with one side being an inclined surface and the other side being vertical.

[0010] Preferably, both the top layer and the transition layer are waterproof layers with a thickness of <200nm.

[0011] Preferably, the bottom layer is a reflective layer with a thickness error within ±5nm.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By setting the top layer at the top of the protective layer, the laser film can be provided with the first waterproof function. The transition layer at the bottom of the protective layer can provide secondary protection, forming a double protection, which can effectively improve the waterproof effect of the laser film, extend the service life of the laser film, and ensure the stability of appearance. Furthermore, the bottom of the transition layer is connected to an optical layer, which includes components such as a dielectric layer and grating grooves. Together, they can improve the reflection efficiency of light in a certain wavelength range, thereby significantly improving the light-gathering effect of the laser film, meeting people's usage needs, and having strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the optical layer of this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: Top layer-1, Protective layer-2, Transition layer-3, Optical layer-4, Bottom layer-5, Dielectric layer-41, Grating trench-42, Upper dielectric film-411, Lower dielectric film-412. Detailed Implementation

[0018] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0019] Please see Figure 1 This invention provides a highly efficient, waterproof laser film with light-gathering properties. It includes a top layer 1, which is an alumina protective film prepared using an ALD process. This provides good waterproofing while maintaining high light transmittance, offering waterproof protection without affecting the laser film's performance. A protective layer 2, made of silicone resin with a thickness not exceeding 30nm, is adhered to the bottom surface of the top layer 1, improving the mechanical and chemical stability of the laser film. A transition layer 3, also made of alumina, is adhered to the bottom of the protective layer 2, providing secondary protection for the laser film. Both the top layer 1 and the transition layer 3 have a thickness of less than 200nm to avoid excessive thickness affecting the light path and thus the light-gathering effect and visual appeal of the laser film. An optical layer 4 is located at the bottom of the transition layer 3, connected to a bottom layer 5, which is a white barium sulfate layer that reflects light. The thickness error is within ±5nm, reducing transmitted light loss and further enhancing the light-gathering effect of the laser film.

[0020] Please see Figure 2-3This utility model provides a highly efficient light-concentrating waterproof laser film. The optical layer 4 includes a dielectric layer 41 and a grating groove 42. There are at least two sets of dielectric layers 41. The top surface of the uppermost set of dielectric layers 41 is provided with a grating groove 42. The grating groove 42 is a continuous sawtooth groove with one side being an inclined surface and the other side being vertical. The reflection and diffraction of light can be interfered through the grating groove 42, thereby realizing the light-concentrating, light-splitting, or dynamic visual effects of the laser film and improving the light-concentrating effect.

[0021] Please see Figure 2 This utility model provides a highly efficient light-concentrating waterproof laser film. The dielectric layer 41 includes an upper dielectric film 411 and a lower dielectric film 412. The upper dielectric film 411 is connected to the top surface of the lower dielectric film 412. A grating groove 42 is formed on the top surface of the upper dielectric film 411. The refractive index of the upper dielectric film 411 is lower than that of the lower dielectric film 412. The upper dielectric film 411 and the lower dielectric film 412 are stacked alternately. By stacking dielectric films with different refractive indices alternately, the reflection of light in a specific wavelength band can be enhanced through interference effect, thereby achieving the light-concentrating effect of the laser film and improving aesthetics and visual appeal.

[0022] The working principle is as follows:

[0023] In use, the laser film can be double-waterproofed through the top layer 1 and the transition layer 3, which can extend the service life of the laser film and prevent water vapor from affecting the viewing effect of the laser film. The upper dielectric film 411 and the lower dielectric film 412 in the optical layer 4 can enhance the reflection of light of specific wavelengths through interference effect, thereby enhancing the visual experience of the laser film. The grating groove 42 can interfere with the reflection and diffraction of light, thereby strengthening the light-gathering effect of the laser film and meeting people's usage needs.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highly efficient light-concentrating waterproof laser film, characterized in that: It includes a top layer (1), a protective layer (2) connected to the bottom surface of the top layer (1), a transition layer (3) connected to the bottom end of the protective layer (2), an optical layer (4) provided at the bottom end of the transition layer (3), and a bottom layer (5) connected to the bottom end of the optical layer (4). The optical layer (4) includes a dielectric layer (41) and a grating groove (42). There are at least two sets of dielectric layers (41), and the top surface of the uppermost set of dielectric layers (41) is provided with a grating groove (42).

2. The high-efficiency light-concentrating waterproof laser film according to claim 1, characterized in that: The dielectric layer (41) includes an upper dielectric film (411) and a lower dielectric film (412). The upper dielectric film (411) is connected to the top surface of the lower dielectric film (412), and a grating groove (42) is formed on the top surface of the upper dielectric film (411).

3. The high-efficiency light-concentrating waterproof laser film according to claim 2, characterized in that: The upper dielectric film (411) has a lower refractive index than the lower dielectric film (412), and the upper dielectric film (411) and the lower dielectric film (412) are stacked alternately.

4. The high-efficiency light-concentrating waterproof laser film according to claim 2, characterized in that: The grating groove (42) is a continuous sawtooth groove with one side being an inclined surface and the other side being vertical.

5. The high-efficiency light-concentrating waterproof laser film according to claim 1, characterized in that: Both the top layer (1) and the transition layer (3) are waterproof layers with a thickness of <200nm.

6. The high-efficiency light-concentrating waterproof laser film according to claim 1, characterized in that: The bottom layer (5) is a reflective layer with a thickness error within ±5nm.

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