Four-color progressive sheet
By dividing the lens substrate into nine grids to form a four-color progressive layer evenly distributed around the periphery, the problems of poor light-shading effect and uneven color changes after cutting are solved, and better light-shading effect and cutting convenience are achieved, and suitable for optical correction users.
Patent Information
- Application Number
- CN202420942195.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing dyed progressive lenses have problems such as the dark layer occupying too small proportion, resulting in poor shading effect, uneven color changes after cutting, and inapplicable to optical correction users.
The four-color progressive sheet structure is adopted to divide the substrate into nine grids, forming four color layers: upper, lower, left and right. The color layers are evenly distributed around the middle grid area to ensure uniform color changes and good shading effect.
It achieves even distribution of color changes, improves the light-shading effect and usage effect, reduces the difficulty of lens cutting, and is suitable for users who need optical correction.
Smart Images
Figure CN222636414U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lenses, in particular to the structure of a four-color progressive lens. Background Art
[0002] Common dyed progressive lenses are divided into three areas from top to bottom: upper, middle and lower, including a dark layer, a gradient layer (gradual color change) and a colorless layer. Specifically, the dark layer is on the top, mainly used for straight vision, can block strong light, and play the role of sunglasses. The colorless layer is on the bottom, mainly used for straight vision, and plays the optical role of the glasses themselves. The gradient layer is in the middle, and plays the role of color transition. In this way, the same pair of glasses can have multiple functions, so it is favored by users.
[0003] However, this type of tinted progressive lens has the following drawbacks.
[0004] 1. The dark layer only occupies a part of the lens. After the lens is cut, it only becomes one strip. The color changes are concentrated and uneven. The shading effect is not good. It cannot provide good protection for the periphery of the eyes, and the efficacy is not ideal.
[0005] Second, this top-center-bottom structural design makes it easy for the lens to become completely dark, or have only a dark layer and a gradient layer, or only a gradient layer and a colorless layer after being cut, due to the size of the cut and the cutting deviation. Even if it is cut in the center, it is distributed in three sections, that is, the color change of the lens after cutting is abrupt and uneven, and the appearance effect is poor.
[0006] 3. This top-middle-bottom structural design has high requirements on the lens cutting shape. It is necessary to ensure that the top, middle and bottom areas are level. Otherwise, the dividing line between the three areas will be skewed, causing the dark layer, gradient layer and colorless layer to tilt, which will directly affect the straight vision and shading effects, and the appearance effect will also be poor.
[0007] 4. For users who need optical correction, since correction is mainly needed when looking straight, and this type of tinted progressive lens appears dark when looking straight, therefore, this type of tinted progressive lens is not suitable for users who need optical correction.
[0008] In view of this, the inventor, relying on long-term accumulated professional knowledge and familiarity with lens products, conducted in-depth research, summarized the characteristics of the products, and specially developed and designed a four-color progressive lens, which resulted in this case. Utility Model Content
[0009] The utility model aims to provide a four-color progressive lens, which makes the color change distribution even, has good shading effect, good use efficacy, is easy to cut into shape, and has beautiful appearance.
[0010] In order to achieve the above purpose, the solution of the utility model is:
[0011] A four-color progressive film is composed of a base film and a color layer. The base film is divided into nine grid areas according to a nine-square grid. An upper color layer is formed on the first to third grid areas, a lower color layer is formed on the seventh to ninth grid areas, a left color layer is formed on the first, fourth and seventh grid areas, and a right color layer is formed on the third, sixth and ninth grid areas. The upper color layer overlaps with the left color layer in the first grid, the upper color layer overlaps with the right color layer in the third grid, the lower color layer overlaps with the left color layer in the seventh grid, and the lower color layer overlaps with the right color layer in the ninth grid. The fifth grid of the nine-square grid retains the color of the base film itself.
[0012] The substrate is a colorless sheet or a colored sheet.
[0013] The side length of the fifth grid area is 5-10 mm.
[0014] The colors of the upper color layer, the lower color layer, the left color layer and the right color layer are the same.
[0015] The colors of the upper color layer, the lower color layer, the left color layer and the right color layer are all different.
[0016] The upper color layer and the lower color layer have the same color, and the left color layer and the right color layer have the same color.
[0017] The color layer is a dyeing layer or a coating layer.
[0018] The thickness of the color layer is 2-8 μm.
[0019] The substrate is an optical sheet or a solar sheet.
[0020] When the substrate is an optical sheet, the geometric center and the optical center of the lens both fall into the fifth grid area.
[0021] The substrate is a myopia lens, a hyperopia lens or a plano lens.
[0022] After adopting the above structure, the utility model has many advantages compared with the prior art.
[0023] 1. The utility model divides the substrate into nine grid areas, forms the color layer in the eight grid areas around the nine-grid, and forms a circle around the middle grid area (the fifth grid area), that is, the color changes are evenly distributed around the fifth grid area, has a good shading effect, has a good protective effect on the periphery of the eyes, and has good use efficacy.
[0024] 2. The utility model forms four color layers on the eight grid areas around the fifth grid area. The four color layers present four color blocks. The four color layers overlapped with each other make the color of the periphery of the entire lens change gradually, thus forming a four-color progressive effect.
[0025] 3. The nine-grid structure design of the utility model ensures that the lens is not affected by the cutting size and cutting deviation when it is cut. The color change of the lens after cutting is evenly distributed around the fifth grid area, avoiding abrupt and uneven color changes and having a good appearance.
[0026] Fourth, the nine-grid structure design of the utility model greatly reduces the requirements for lens cutting, and cutting is easy. Even if the boundary line of the color layer is skewed, the color change of the lens after cutting is still evenly distributed around the fifth grid area, without affecting the straight-view and shading effects, and the appearance effect is also good.
[0027] Fifth, the substrate of the utility model can be selected as a colorless lens or a colored lens, and the middle grid area (fifth grid area) is correspondingly colorless or colored. In particular, when a colorless or light-colored substrate is selected, the utility model will not affect the visual effect of normal emmetropia. In this way, the utility model can be used for optical correction lenses when a colorless or light-colored substrate is selected, and can be used for sunglass lenses when a light-colored or dark-colored substrate is selected, which expands the product categories applicable to the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the examples of the utility model, the following is a brief description of the drawings required for the description of the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.
[0029] Figure 1 It is a three-dimensional exploded view of the first embodiment of the utility model;
[0030] Figure 2 It is a three-dimensional schematic diagram of the first embodiment of the utility model;
[0031] Figure 3 It is a three-dimensional exploded view of the second embodiment of the utility model;
[0032] Figure 4 It is a three-dimensional exploded view of the third embodiment of the present utility model.
[0033] Description of symbols
[0034] Substrate 10, geometric center 01, optical center 02;
[0035] Color layer 20: upper color layer 21, lower color layer 22, left color layer 23, right color layer 24. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0037] It should be noted that the terms up, down, left, right, inside, outside, first, second, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features, unless otherwise clearly and specifically defined.
[0038] like Figures 1 to 4 As shown, the utility model discloses a four-color progressive film, which is composed of a base film 10 and a color layer 20.
[0039] The substrate 10 is divided into nine grid areas according to the nine-square grid. The optimal side length of the fifth grid area is 5-10 mm. The substrate 10 can be a colorless sheet or a colored sheet (light-colored sheet or dark-colored sheet). The substrate 10 can also be an optical sheet or a sun sheet. When the substrate 10 is an optical sheet, the geometric center 01 and the optical center 02 of the lens both fall into the fifth grid area, which is conducive to cutting. The substrate 10 can be a myopia lens, a hyperopia lens or a plano lens.
[0040] The color layer 20 includes an upper color layer 21, a lower color layer 22, a left color layer 23, and a right color layer 24. It should be noted that the different cross-section lines in the figure are only used to illustrate different colors and do not have the meaning of actual structure and material. The color layer 20 can be a dyeing layer formed by dip-dyeing or a coating layer formed by evaporation. The preferred thickness of the color layer 20 is 2-8 μm.
[0041] Specifically, an upper color layer 21 is formed on the first to third grid areas of the substrate 10, a lower color layer 22 is formed on the seventh to ninth grid areas, a left color layer 23 is formed on the first, fourth and seventh grid areas, and a right color layer 24 is formed on the third, sixth and ninth grid areas, and the upper color layer 21 overlaps with the left color layer 23 in the first grid, the upper color layer 21 overlaps with the right color layer 24 in the third grid, the lower color layer 22 overlaps with the left color layer 23 in the seventh grid, the lower color layer 22 overlaps with the right color layer 24 in the ninth grid, and the fifth grid of the nine-grid retains the color of the substrate 10 itself.
[0042] The colors of the upper color layer 21, the lower color layer 22, the left color layer 23 and the right color layer 24 can be the same, such as Figure 1 and Figure 2 Alternatively, the colors of the upper color layer 21, the lower color layer 22, the left color layer 23 and the right color layer 24 are all different, such as Figure 3 Alternatively, the upper color layer 21 and the lower color layer 22 have the same color, and the left color layer 23 and the right color layer 24 have the same color, as shown in FIG. Figure 4 No matter what color the color layer 20 uses, the periphery of the lens will present four color blocks, and the four color layers 20 that overlap each other make the periphery of the entire lens change color gradually, thereby forming a lens with a four-color progressive effect.
[0043] As shown in the figure, the utility model divides the substrate 10 into nine grid areas, forms the color layer 20 in the eight grid areas around the nine-grid area, and forms a circle around the middle grid area (the fifth grid area), that is, the color change is evenly distributed around the fifth grid area. In this way, the product has a good shading effect, plays a good protective effect on the periphery of the eyes, and has good use efficacy. Moreover, the nine-grid structure design of the utility model makes the lens shape-cutting unaffected by the cutting size and cutting deviation, and the color change of the lens after cutting is evenly distributed around the fifth grid area, avoiding abrupt and uneven color changes, and having a good appearance effect. At the same time, the nine-grid structure design of the utility model greatly reduces the requirements for lens cutting. Even if the boundary line of the color layer 20 is skewed, the color change of the lens after cutting is still evenly distributed around the fifth grid area, which does not affect the front view and shading effects, and the appearance effect is also good.
[0044] In addition, no matter the substrate 10 of the present invention is a colorless or colored lens, the middle grid area (fifth grid area) is correspondingly colorless or colored, especially when a colorless or light-colored substrate is selected, the present invention will not affect the visual effect of normal vision. The present invention selects a colorless or light-colored substrate 10, and the substrate 10 selects an optical lens, and in this case, a four-color progressive optical correction lens can be made. The present invention selects a light-colored or dark-colored substrate 10, and the substrate 10 selects a sun lens, and in this case, a four-color progressive sun lens can be made. The present invention is applicable to more types of products.
[0045] The above is only an example of the implementation of the utility model, and is not intended to limit the protection scope of the utility model. It should be pointed out that equivalent changes made by technicians in this field according to the design ideas of this case after reading this specification all fall within the protection scope of this case.
Claims
1. A four-color progressive lens, characterized in that: It is composed of a substrate and a color layer, and the substrate is divided into nine grid areas according to a nine-square grid. An upper color layer is formed on the first to third grid areas, a lower color layer is formed on the seventh to ninth grid areas, a left color layer is formed on the first, fourth and seventh grid areas, and a right color layer is formed on the third, sixth and ninth grid areas. The upper color layer overlaps with the left color layer in the first grid, the upper color layer overlaps with the right color layer in the third grid, the lower color layer overlaps with the left color layer in the seventh grid, and the lower color layer overlaps with the right color layer in the ninth grid. The fifth grid of the nine-square grid retains the color of the substrate itself.
2. A four-color progressive lens as claimed in claim 1, characterized in that: The substrate is a colorless sheet or a colored sheet.
3. A four-color progressive lens as claimed in claim 1, characterized in that: The side length of the fifth grid is 5-10 mm.
4. A four-color progressive lens as claimed in claim 1, characterized in that: The colors of the upper color layer, the lower color layer, the left color layer and the right color layer are the same.
5. The four-color progressive lens according to claim 1, characterized in that: The colors of the upper color layer, the lower color layer, the left color layer and the right color layer are all different.
6. A four-color progressive lens as claimed in claim 1, characterized in that: The upper color layer and the lower color layer have the same color, and the left color layer and the right color layer have the same color.
7. The four-color progressive lens according to claim 1, characterized in that: The color layer is a dyeing layer or a coating layer.
8. The four-color progressive lens according to claim 1, characterized in that: The thickness of the color layer is 2-8 μm.
9. The four-color progressive lens according to claim 1, characterized in that: The substrate is an optical sheet or a solar sheet.
10. The four-color progressive lens according to claim 1, characterized in that: When the substrate is an optical sheet, the geometric center and the optical center of the lens both fall into the fifth grid.