A therapeutic lens that does not require an artificial red light source

Abstract

This invention discloses a therapeutic lens that does not require an artificial red light source. By incorporating a non-red light absorption layer, the lens can accurately and efficiently absorb light of other wavelengths besides red light, as well as near-infrared rays, allowing only beneficial red light with wavelengths in the 620nm~780nm range to pass through. This eliminates the need for artificial red light sources generated by specialized instruments, allowing users to enjoy red light irradiation, thus expanding the application scenarios of red light therapy and reducing treatment costs. Simultaneously, the lens also features a red light anti-reflection coating layer. Through the interference effect of the multi-layer film structure, it effectively reduces the amount of red light reflected from the lens surface, ensuring that more beneficial red light can pass through the glasses and reach the eyes without loss. This significantly improves the effective utilization rate and therapeutic effect of red light, providing users with a more efficient and comfortable visual therapy experience.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, and in particular to a therapeutic lens that does not require an artificial red light source. Background Technology

[0002] Modern scientific research shows that red light has a positive effect on eye health. Exposure to red light can improve the performance of mitochondria in the retina and slow down age-related vision decline.

[0003] Red light therapy stimulates eye cells with specific wavelengths of red light. The energy from this stimulation penetrates the surface of the eye and acts on the retina and other eye tissues. The bio-optical effects of red light can reactivate cellular energy, promoting cell repair and regeneration, enhancing blood circulation in the eyes, and alleviating eye problems. However, this treatment method often uses specialized instruments that emit artificial red light, resulting in high costs and low availability. Utility Model Content

[0004] The purpose of this invention is to provide a therapeutic lens that does not require an artificial red light source. By setting a non-red light absorption layer, it absorbs light of other wavelengths besides red light, while using an anti-reflection layer to reduce the amount of red light reflected, ensuring that beneficial red light can pass through the glasses and reach the eyes.

[0005] To achieve the above objectives, the solution of this utility model is: a therapeutic lens that does not require an artificial red light source, comprising a substrate layer, a non-red light absorption layer, a strengthening layer, and a red light anti-reflection coating layer;

[0006] The non-red light absorption layer is attached to the substrate layer and is used to absorb light of other wavelengths besides red light;

[0007] The reinforcing layer is located on the side of the non-red light absorbing layer away from the substrate layer; the red light anti-reflection coating layer is located on the side of the reinforcing layer away from the substrate layer; the red light anti-reflection coating layer includes several layers of silicon-aluminum mixed layers and zirconium dioxide film layers stacked alternately from the inside to the outside.

[0008] Furthermore, the non-red light absorption layer is located on the surface of the substrate layer or within the substrate layer.

[0009] Furthermore, the thickness of the non-red light absorption layer ranges from 250 to 450 nm.

[0010] Furthermore, the red light antireflection coating layer comprises four silicon-aluminum hybrid layers and three zirconium dioxide layers.

[0011] Furthermore, the thicknesses of the silicon-aluminum mixed layer and the zirconium dioxide layer in the red light antireflection coating layer are 790~810nm, 120~160nm, 140~180nm, 270~290nm, 75~85nm, 390~410nm and 690~710nm, respectively.

[0012] Furthermore, the thickness of the reinforcing layer ranges from 1.0 to 10.0 μm.

[0013] Furthermore, the thickness of the substrate layer ranges from 1 to 10 mm.

[0014] Furthermore, the substrate layer is made of PC, nylon, or TAC material.

[0015] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0016] In the natural environment, natural red light resources are abundant and widely distributed, and this new therapeutic lens utilizes this natural advantage. By setting a non-red light absorption layer, the lens can accurately and efficiently absorb light of other wavelengths besides red light, as well as near-infrared light, allowing only beneficial red light with wavelengths in the range of 620nm to 780nm to pass through smoothly. Without the need for artificial red light sources generated by special instruments, users' eyes can enjoy red light irradiation, thus expanding the application scenarios of red light therapy and reducing the cost of treatment.

[0017] Meanwhile, the lenses also have a red light anti-reflection coating layer. Through the interference effect of the multi-layer film structure, the amount of red light reflected on the lens surface is effectively reduced, ensuring that more beneficial red light can pass through the glasses and reach the eyes without loss. This significantly improves the effective utilization rate and therapeutic effect of red light, bringing users a more efficient and comfortable visual therapy experience. Attached Figure Description

[0018] Figure 1 This is one embodiment of the present utility model;

[0019] Figure 2 This is a lens spectrum diagram of an embodiment of this utility model.

[0020] Label Explanation:

[0021] 1. Substrate layer; 2. Non-red light absorption layer; 3. Reinforcement layer; 4. Red light anti-reflection coating layer; 41. Silicon-aluminum hybrid layer; 42. Zirconia layer. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] This invention provides a therapeutic lens that does not require an artificial red light source, such as... Figure 1As shown, it includes a substrate layer 1, a non-red light absorption layer 2, a reinforcement layer 3, and a red light anti-reflection coating layer 4.

[0024] The substrate layer 1 serves as the basic supporting structure for the entire lens, with its thickness controlled between 1 and 10 mm. This thickness range ensures that the lens has sufficient strength and stability to withstand various external impacts and wear during daily use, while also preventing excessive thickness from increasing the lens's weight and affecting wearing comfort. Common resin lens materials such as PC (polycarbonate), nylon, and TAC (triacetin) are selected for its materials.

[0025] The non-red light absorption layer 2 is attached to the substrate layer 1, located on the surface of the substrate layer 1 or within the substrate layer 1. This non-red light absorption layer 2 has an optical filtering function, capable of efficiently absorbing light with wavelengths outside the 620nm~780nm range, thereby filtering out these rays. At the same time, it has high transmittance for red light in the 620nm~780nm range, hardly obstructing the transmission of red light, ensuring that beneficial red light can reach the eye.

[0026] In this embodiment, the formation method of the non-red light absorbing layer 2 embedded inside the substrate layer 1 is described in detail. During the lens manufacturing process, pigments or masterbatches with the aforementioned specific optical properties are added to the resin raw material, with a resin raw material to pigment ratio of 0.9~1.1kg:0.5~0.7g. The pigment used in this embodiment is purchased from Xiamen Xinhua Color Plastic Pigment Co., Ltd., model K3242, which contains 5B Red (CAS No.: 81-39-0) and EG Red (CAS No.: 71902-17-5).

[0027] Subsequently, the resin raw material containing color powder is placed into the injection molding equipment for molding processing, and finally the color masterbatch forms a non-red light absorbing layer 2 with a thickness of 250 ~ 450nm in the substrate layer 1.

[0028] The reinforcing layer 3 is disposed on the side of the non-red light absorbing layer 2 away from the substrate layer 1, serving both protective and performance enhancement functions. In this embodiment, the reinforcing layer 3 is formed by adhering a reinforcing liquid to the lens surface. The reinforcing liquid is a mixture of alcohol ether and silane. During the preparation process, after the non-red light absorbing layer 2 is formed, the lens is cleaned and pre-dried, then placed in a hardening tank and immersed in the reinforcing liquid. Finally, the reinforcing layer 3 is formed on top of the non-red light absorbing layer 2, and the thickness of this layer is controlled between 1.0 and 10.0 μm. The wear resistance and scratch resistance of the lens with this reinforcing layer 3 are significantly improved.

[0029] The red anti-reflection coating layer 4 is located on the side of the reinforcing layer 3 away from the substrate layer 1. This red anti-reflection coating layer 4 is formed on the reinforcing layer 3 using a vacuum deposition method. The red anti-reflection coating layer 4 has a multilayer film structure, consisting of several alternating layers of silicon-aluminum hybrid layer 41 and zirconium dioxide film layer stacked from the inside out. The silicon-aluminum hybrid layer 41 combines the excellent properties of silicon and aluminum, possessing good optical performance and chemical stability; the zirconium dioxide film layer has a high refractive index and low absorptivity, effectively controlling the propagation of light. These two materials work together to form a highly efficient optical interference structure, effectively reducing the reflection of red light and increasing the transmittance of the lens to red light.

[0030] For therapeutic lenses that do not require an artificial red light source, their light transmittance is relatively low, typically around 10%. Such low transmittance severely affects the user's reception of red light, reducing the functionality of the therapeutic lens. Therefore, the addition of a red anti-reflective coating layer 4 can improve the lens's ability to transmit red light, allowing more red light to penetrate the lens and enter the human eye, thereby better fulfilling the function of the therapeutic lens. In this embodiment, the red anti-reflective coating layer 4 includes four silicon-aluminum hybrid layers 41 and three zirconium dioxide layers 42. The specific film structure from the direction closest to the substrate layer to the direction furthest from the substrate layer is shown in the table below:

[0031]

[0032] When red light passes through the lens, it undergoes multiple reflections and interferences between these film layers of different thicknesses and refractive indices, causing the reflected light to cancel each other out, thereby reducing the amount of reflection and achieving the effect of enhancing the transmission of red light.

[0033] The therapeutic lens designed in this embodiment has spectral characteristics that are detected and presented by professional instruments. Figure 2 The spectrum shown indicates that the lens exhibits high transmittance, exceeding 36%, in the red light band of 620nm to 780nm. This characteristic means that when ambient light shines on the lens, a large amount of red light in this band can pass through the lens smoothly and efficiently with almost no significant obstruction or attenuation, thus entering the human eye without hindrance.

[0034] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0035] Furthermore, the directions such as front, back, left, and right mentioned in this embodiment are only for reference and do not represent the actual directions in use. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A therapeutic lens that does not require an artificial red light source, characterized in that: It includes a substrate layer, a non-red light absorption layer, a reinforcement layer, and a red light anti-reflection coating layer; The non-red light absorption layer is attached to the substrate layer and is used to absorb light of other wavelengths besides red light; The reinforcing layer is located on the side of the non-red light absorbing layer away from the substrate layer; the red light anti-reflection coating layer is located on the side of the reinforcing layer away from the substrate layer; the red light anti-reflection coating layer includes several layers of silicon-aluminum mixed layers and zirconium dioxide film layers stacked alternately from the inside to the outside.

2. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The non-red light absorption layer is located on the surface of the substrate layer or within the substrate layer.

3. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The thickness of the non-red light absorption layer ranges from 250 to 450 nm.

4. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The red light antireflection coating layer comprises four silicon-aluminum hybrid layers and three zirconium dioxide layers.

5. The therapeutic lens that does not require an artificial red light source as described in claim 4, characterized in that: The thicknesses of the silicon-aluminum hybrid layer and the zirconium dioxide layer in the red light antireflection coating layer are 790~810nm, 120~160nm, 140~180nm, 270~290nm, 75~85nm, 390~410nm and 690~710nm, respectively.

6. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The thickness of the reinforcing layer ranges from 1.0 to 10.0 μm.

7. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The thickness of the substrate layer ranges from 1 to 10 mm.

8. The therapeutic lens that does not require an artificial red light source as described in claim 1, characterized in that: The substrate layer is made of PC, nylon, or TAC material.

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