CN220357362U - Reverse hyperbolic lens and processing die thereof - Google Patents
Reverse hyperbolic lens and processing die thereof Download PDFInfo
- Publication number
- CN220357362U CN220357362U CN202321948274.4U CN202321948274U CN220357362U CN 220357362 U CN220357362 U CN 220357362U CN 202321948274 U CN202321948274 U CN 202321948274U CN 220357362 U CN220357362 U CN 220357362U
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- Prior art keywords
- lens
- hyperbolic
- reverse
- bending
- curvature
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- 230000002441 reversible effect Effects 0.000 title claims abstract description 38
- 238000005452 bending Methods 0.000 claims abstract description 29
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 6
- 210000001508 eye Anatomy 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 210000005252 bulbus oculi Anatomy 0.000 description 3
- 230000004313 glare Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a reverse hyperbolic lens, which is characterized in that the longitudinal direction of the lens is inwards bent, and the transverse direction of the lens is outwards bent, so that the whole lens is reversely rotated in the longitudinal and transverse bending directions to form a double-curvature structure. The utility model also discloses a processing mould for the reverse hyperbolic lens, wherein the mould core is arranged in the mould plate, the mould plate is divided into a front mould plate and a rear mould plate, the front mould plate and the rear mould plate are respectively provided with a front mould core and a rear mould core, the front mould core and the rear mould core form a cavity for injection moulding the reverse hyperbolic lens, and the cavity corresponds to the longitudinal inward bending of the reverse hyperbolic lens and corresponds to the transverse outward bending of the reverse hyperbolic lens, so that the injection moulding reverse hyperbolic lens has a double-curvature structure. The utility model realizes the free-form surface lens, reduces the light reflection of the lens, ensures that the eyes of a wearer are more comfortable, the sight is clearer, and provides better visual experience.
Description
Technical Field
The utility model relates to the technical field of spectacle lenses, in particular to a reverse hyperbolic lens structure and also relates to a die structure for processing and manufacturing the reverse hyperbolic lens.
Background
In the prior art, the longitudinal direction and the transverse direction of the solar lens are bent towards one surface, and the solar lens belongs to a lens with normal bending degree. The corresponding processing mould is also designed to bend towards one surface in the longitudinal direction and the transverse direction, and can only make a lens with normal bending degree, and can not realize a free-form surface lens. When the single curved lens is used, light acts on the lens, the whole mirror surface can generate reflected light, the light reflection can influence the definition of the lens, and interference reflected light can be generated on the surface of the lens, and the reflection rate is measured by the reflection rate, so that the larger the reflection rate is, the more light is lost due to reflection, and the more light reflection is concentrated at the eyeball. The phenomenon can cause aperture phenomenon in the lens, so that the thickness of the lens is obviously displayed, the eyes of a wearer can be hidden due to light reflection on the surface of the lens, glare is generated by the wearer, contrast is reduced, and the visual effect is also deteriorated.
Disclosure of Invention
The utility model aims to provide a reverse hyperbolic lens, so that the light reflection of the lens can be reduced, and better visual experience is provided.
The utility model also aims to provide a processing mould for the inverted hyperbolic lens, which enables the lens to have a free curved surface, can reduce light reflection of the lens and provides better visual experience.
In order to achieve the above object, the solution of the present utility model is:
a reversible hyperbolic lens is formed by bending the lens longitudinally inward and laterally outward to reverse the entire lens in both longitudinal and lateral bending directions.
The lens is a colorless lens or a colored lens.
The lens is formed by injection molding of PA, PC or TRX materials.
The length of the lens is 79-82mm, the width of the lens is 69-72mm, and the thickness of the lens is 38-40mm.
The radius of curvature of the longitudinal bending is 129-131mm, and the radius of curvature of the transverse bending is 260-263mm.
Lamination points are formed on four corners of the lens.
The mold core is arranged in a mold plate, the mold plate is divided into a front mold plate and a rear mold plate, the front mold plate and the rear mold plate are respectively provided with a front mold core and a rear mold core, a cavity for injection molding the reverse hyperbolic lens is formed by the front mold core and the rear mold core, and the cavity corresponds to the longitudinal inward bending of the reverse hyperbolic lens and corresponds to the transverse outward bending of the reverse hyperbolic lens, so that the injection molding reverse hyperbolic lens has a double-curvature structure.
Four mold cores are arranged in the mold plate, and four corresponding front mold cores and four corresponding rear mold cores are respectively formed on the front mold plate and the rear mold plate, so that four cavities for injection molding of the inverted hyperbolic lens are formed on the front mold plate and the rear mold plate.
The front mold core has a length of 79-81mm, a width of 69-71mm, a height of 38-40mm, a length of 80-82mm, a width of 70-72mm and a height of 38-40mm.
The radius of curvature of the longitudinal bending of the front die core is 129-131mm, the radius of curvature of the transverse bending is 260-263mm, the radius of curvature of the longitudinal bending of the rear die core is 129-131mm, and the radius of curvature of the transverse bending is 260-263mm.
After the scheme is adopted, the utility model is suitable for the sunglasses, compared with the prior art, the utility model changes the traditional single-direction convex mirror into the double-curved composite mirror with transverse convex and longitudinal concave, realizes the free-form surface mirror, when light acts on the mirror, the free-form surface can reflect a part of light to the side, the light reflection of the mirror is reduced by the middle part of the free-form surface, the light reflection can not be concentrated at the eyeball in the middle, the glare is avoided to reduce the contrast ratio, the eyes are more comfortable for a wearer, the sight is clearer, and better visual experience is provided.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present utility model, the following description will simply describe the drawings that are needed to be used in the description of the embodiments. It is to be understood that the following drawings illustrate only certain embodiments of the utility model and are therefore not to be considered limiting of its scope, for the person of ordinary skill in the art may admit to other equally relevant drawings without inventive effort.
FIG. 1 is a schematic perspective view of a lens of the present utility model;
FIG. 2 is a front view of a lens of the present utility model;
FIG. 3 is a side view of a lens of the present utility model;
FIG. 4 is a bottom view of the lens of the present utility model;
FIG. 5 is a schematic perspective view of a lens assembly of the present utility model;
FIG. 6 is a front view of a lens set of the present utility model;
FIG. 7 is a side view of a lens set of the present utility model;
FIG. 8 is a bottom view of the lens set of the present utility model;
FIG. 9 is a schematic view of the appearance of the working mold of the present utility model;
FIG. 10 is a schematic view of the structure of a front mold plate of the processing mold of the present utility model;
fig. 11 is a schematic view of the structure of a rear die plate of the processing die of the utility model.
Description of the reference numerals
Lens 10, lamination point 11, front mold plate 20, back mold plate 30, front mold insert 40, back mold insert 50.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
It should be noted that the terms inner, outer, upper, lower, left, right, first, second, and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating any particular feature being indicated unless otherwise specifically limited.
As shown in fig. 1 and 8, the present utility model discloses a reversible hyperbolic lens, wherein the longitudinal (Y-direction) of the lens 10 is curved inwardly and the transverse (X-direction) is curved outwardly, such that the entire lens 10 is reversed in both the longitudinal (Y-direction) and transverse (X-direction) directions of curvature to form a dual curvature structure. The lens 10 of the present utility model may be a colorless lens or a colored lens. The lenses of the utility model may be injection molded from PA, PC or TRX or other suitable materials for lenses.
The optimal design of the utility model is as follows: the length L of the lens 10 is 79-82mm, the width H is 69-72mm, and the thickness D is 38-40mm. Radius of curvature R of the longitudinal curve of the lens 10 Y Radius of curvature R of transverse bend of 129-131mm X 260-263mm.
The lens 10 of the present utility model may be formed in a single step by a mold, or in a four-by-four combination of fig. 5 to 8, thereby improving the processing efficiency.
The utility model further forms lamination points 11 on four corners of the lenses 10, so that when the lenses 10 are stacked together, two adjacent lenses 10 can be separated by the lamination points 11, and friction and scratch are avoided.
The utility model discloses a processing mould for a reverse hyperbolic lens, as shown in fig. 9-11, wherein a mould core is arranged in a mould plate, the mould plate is divided into a front mould plate 20 and a rear mould plate 30, a front mould core 40 and a rear mould core 50 are respectively formed on the front mould plate 20 and the rear mould plate 30, after the front mould plate 20 and the rear mould plate 30 are assembled, a cavity is formed by the front mould core 40 and the rear mould core 50, the cavity is used for injection molding the reverse hyperbolic lens 10, and the cavity is correspondingly bent inwards in the longitudinal direction (Y direction) of the reverse hyperbolic lens 10 and correspondingly bent outwards in the transverse direction (X direction) of the reverse hyperbolic lens 10, so that the injection molding reverse hyperbolic lens 10 has a double-curvature structure.
In order to improve the processing efficiency, the mold plate of the present utility model has four mold cores, and the front mold plate 20 and the rear mold plate 30 are respectively formed with four corresponding front mold cores 40 and four corresponding rear mold cores 50, so that after the front mold plate 20 and the rear mold plate 30 are assembled, four cavities for injection molding the inverted hyperbolic lens 10 are formed thereon.
Corresponding to the specific design of the lens 10: the length L is 79-82mm, the width H is 69-72mm, the thickness D is 38-40mm, and the curvature radius R of longitudinal bending is Y Radius of curvature R of transverse bend of 129-131mm X The optimal design of the die is 260-263 mm: the front mold core 40 has the length of 79-81mm, the width of 69-71mm, the height of 38-40mm, the curvature radius of longitudinal bending of 129-131mm and the curvature radius of transverse bending of 260-263mm; the length of the rear mold core 50 is 80-82mm, the width is 70-72mm, the height is 38-40mm, the curvature radius of the longitudinal bending is 129-131mm, and the curvature radius of the transverse bending is 260-263mm.
The utility model relates to a processing production process, which comprises the following steps:
s1, arranging a processing mould for manufacturing the reverse hyperbolic lens on an injection molding machine, wherein the processing mould comprises a front template 20 and a rear template 30.
S2, after the front template 20 and the rear template 30 are assembled, a cavity for injection molding the inverted hyperbolic lens 10 is formed between the front mold insert 40 and the rear mold insert 50 on the front template 20 and the rear template 30.
S3, drying and dehumidifying the plastic rice used for manufacturing the lens 10, and adding a color master according to the requirement to enable the formed lens 10 to have color.
S4, pouring the dried and dehumidified plastic rice into an injection molding machine for injection molding, and injecting the melted plastic rice into a cavity to obtain the inverted hyperbolic lens 10.
Therefore, the utility model changes the lens from the traditional single curved lens into the double curved composite lens with convex transverse and concave longitudinal directions, thereby realizing the free curved lens. When the lens is worn, light acts on the lens 10, a part of light can be reflected to the side of the lens by the free curved surface, so that the light reflection of the middle part of the lens is reduced, the light reflection can not be concentrated at the eyeball in the middle, glare is avoided to reduce contrast, the eyes of a wearer are more comfortable, the sight is clearer, and better visual experience is provided.
The foregoing is merely exemplary of the present utility model and is not intended to limit the scope of the present utility model. It should be noted that those skilled in the art who review this disclosure will recognize that many equivalent variations are possible in light of the design considerations of the present disclosure.
Claims (10)
1. A reversible hyperbolic lens, characterized by: the lens is bent longitudinally inward and laterally outward, so that the whole lens is reversed in the longitudinal and lateral bending directions, and a double-curvature structure is formed.
2. A reversible hyperbolic lens according to claim 1 wherein: the lens is a colorless lens or a colored lens.
3. A reversible hyperbolic lens according to claim 1 wherein: the lens is formed by injection molding of PA, PC or TRX materials.
4. A reversible hyperbolic lens according to claim 1 wherein: the length of the lens is 79-82mm, the width of the lens is 69-72mm, and the thickness of the lens is 38-40mm.
5. A reversible hyperbolic lens according to claim 1 wherein: the radius of curvature of the longitudinal bending is 129-131mm, and the radius of curvature of the transverse bending is 260-263mm.
6. A reversible hyperbolic lens according to claim 1 wherein: lamination points are formed on four corners of the lens.
7. A processing die for a reverse hyperbolic lens, which is characterized in that: the mold core is arranged in the mold plate, the mold plate is divided into a front mold plate and a rear mold plate, the front mold plate and the rear mold plate are respectively provided with a front mold core and a rear mold core, the front mold core and the rear mold core form a cavity for injection molding of the reverse hyperbolic lens, the cavity corresponds to the longitudinal inward bending of the reverse hyperbolic lens and corresponds to the transverse outward bending of the reverse hyperbolic lens, so that the injection molding reverse hyperbolic lens has a double-curvature structure.
8. A mold for processing a reversible hyperbolic lens according to claim 7 wherein: four mold cores are arranged in the mold plate, and four corresponding front mold cores and four corresponding rear mold cores are respectively formed on the front mold plate and the rear mold plate, so that four cavities for injection molding of the inverted hyperbolic lens are formed on the front mold plate and the rear mold plate.
9. The mold for manufacturing a reversible hyperbolic lens according to claim 7, wherein the front mold core has a length of 79-81mm, a width of 69-71mm, a height of 38-40mm, a length of 80-82mm, a width of 70-72mm, and a height of 38-40mm.
10. The mold for manufacturing a reverse hyperbolic lens according to claim 7, wherein the radius of curvature of the longitudinal bending of the front mold core is 129-131mm, the radius of curvature of the transverse bending is 260-263mm, the radius of curvature of the longitudinal bending of the rear mold core is 129-131mm, and the radius of curvature of the transverse bending is 260-263mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321948274.4U CN220357362U (en) | 2023-07-24 | 2023-07-24 | Reverse hyperbolic lens and processing die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321948274.4U CN220357362U (en) | 2023-07-24 | 2023-07-24 | Reverse hyperbolic lens and processing die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220357362U true CN220357362U (en) | 2024-01-16 |
Family
ID=89502296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321948274.4U Active CN220357362U (en) | 2023-07-24 | 2023-07-24 | Reverse hyperbolic lens and processing die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220357362U (en) |
-
2023
- 2023-07-24 CN CN202321948274.4U patent/CN220357362U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 10 Hutou Road, Haicang District, Xiamen City, Fujian Province, 361000 Patentee after: Eyepol Polarizing Technology (XIAMEN) Co.,Ltd. Country or region after: China Address before: 361000 Area A, 1st Floor, 2nd Floor, 3rd to 5th Floor, No. 128-3, Houxiang South Road, Haicang District, Xiamen City, Fujian Province, China Patentee before: Eyepol Polarizing Technology (XIAMEN) Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |