Spectacle lens with decorative element
By bonding decorative elements to the recessed portion of the lens and covering it with polymer material, the problems of damage to decorative elements and difficulty in positioning on the lens are solved, achieving the manufacture of eyeglass lenses with high durability and aesthetic effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-21
- Publication Date
- 2026-04-14
AI Technical Summary
In the prior art, decorative elements on eyeglass lenses are easily damaged and difficult to position and integrate precisely, especially decorative elements made of metal or electronic components, which have problems in terms of aesthetics and durability.
The lens is manufactured by gluing decorative elements to a recessed portion of the lens and covering it with another layer of polymer material, combined with injection molding or casting of polymer materials, ensuring that the decorative elements are integrated inside the lens and remain undamaged.
It achieves precise positioning and high durability of decorative elements, maintains aesthetic appeal, and has a simple and cost-effective manufacturing process.
Smart Images
Figure CN121857210A_ABST
Abstract
Description
[0001] This application is a divisional application of the application filed on December 21, 2021, with application number 202180086153.0 and invention title "Spectrum Lens with Decorative Elements". Technical Field
[0002] This invention relates to an eyeglass lens with a decorative insert. More specifically, this invention relates to an eyeglass lens having a decorative insert visible to the observer of the lens. Background Technology
[0003] As is well known, eyeglass lenses are typically characterized by decorative elements designed to enhance their aesthetic appeal.
[0004] In any case, decorative elements are used to embellish the lenses and, from an aesthetic point of view, to make the glasses special, thus distinguishing them from conventional eyeglasses. Summary of the Invention
[0005] In some cases, decorative elements, in addition to serving as modifications, also "hide" functional elements, such as RFID tags.
[0006] Applying decorative elements to lenses involves several issues, because although decorative elements can be applied externally to the lens and glued to the protruding outer surface of the lens, this solution will cause premature damage to the decorative elements, even if it does not cause them to detach from the lens.
[0007] Therefore, from an operational point of view, this solution is impractical and aesthetically unappealing because if the decorative element is a metal letter or other decorative element preferably made of metal, plastic, composite, or natural fiber material, it will have a thickness visible from the outside of the lens, resulting in a noticeably unattractive aesthetic effect and limited resistance to external disturbances. This is even more true if the decorative element contains electronic components.
[0008] Lenses made by inserting decorative pieces or by unevenly dispersing decorative materials (such as glitter) are known in the prior art. However, these solutions cannot guarantee the high durability of decorative pieces that are prone to degradation, nor can they place very small decorative elements in the desired positions on the lens.
[0009] Lenses in the prior art are known to be made by gluing decorative or functional elements onto a flat plate, then permanently deforming and positioning the plate in a mold, and subsequently casting the monomer into the mold.
[0010] The disadvantages of this solution are that the sheet material it applies to deforms along with the decorative or functional elements, and / or may damage the decorative or functional elements, as well as greater residual stress at the end of the lens production cycle due to the cross-linking of monomers into polymers.
[0011] The main objective of this invention is to manufacture an eyeglass lens having elements for decorative or functional purposes, preferably but not exclusively made of a metallic material, and such an eyeglass lens having said decorative elements is protected from damage.
[0012] In the context of this task, the object of the present invention is to manufacture high-quality spectacle lenses in which adhesive / gluing elements are not visible from the outside of the lens and instead appear to be fully integrated / bonded into the lens body, and can be precisely and accurately positioned at the desired point on the lens.
[0013] Another object of the present invention is to manufacture an eyeglass lens in which decorative elements do not degrade over time.
[0014] Another object of the present invention is to manufacture an eyeglass lens in which the decorative element also has a functional purpose, such as a location identifier (RFID tag) or a photochromic element, or in which the decorative element includes electronic components.
[0015] Another object of the present invention is to manufacture an eyeglass lens in which decorative elements can be directly inserted during the lens manufacturing process, whether by injection molding or by casting polymer material.
[0016] The final but equally important objective of this invention is to produce an eyeglass lens that is highly reliable, relatively simple to manufacture, and competitively priced.
[0017] This task, and these and other objectives, will be presented more clearly below, and are achieved by an eyeglass lens having a decorative element, characterized in that the eyeglass lens includes a decorative element glued to a recessed portion of the lens, the lens being made of a plastic material, the decorative element being arranged between the recessed portion of the lens and another layer of polymer material. Attached Figure Description
[0018] Further features and advantages of the invention will become clearer from the description of preferred, but not exclusive, embodiments of the spectacle lens according to the invention, which are illustrated by way of non-limiting example in the accompanying drawings, wherein:
[0019] Figure 1 The lens according to the invention is illustrated in a schematic perspective exploded view;
[0020] Figure 2A perspective view of the lens in its assembled state is shown;
[0021] Figure 3 A cross-sectional view of the lens according to the invention is shown;
[0022] Figure 4 Another embodiment of the lens according to the invention is shown in cross-section. Detailed Implementation
[0023] Referring to the accompanying drawings, the eyeglass lens according to the present invention is generally indicated by reference numeral 1, and from the outside of the lens toward the wearer's eye, it comprises a lens 2 made of plastic material, and decorative elements (such as letters, decorations, embellishments, symbols, etc.) are glued to the lens by adhesive elements 4, which are preferably, but not exclusively, made of metal material 3.
[0024] Specifically, the term "plastic material" refers to lenses that are made wholly or at least partially of plastic material.
[0025] Plastic materials can be transparent or colored (and can also be shaded).
[0026] Therefore, the decorative element 3 is glued to the recessed area of the lens 2, and preferably outside the center / optical zone of the lens, to allow the eyeglass wearer to correct their vision.
[0027] The component thus formed between the plastic lens 2 and the decorative element 3 is covered by another layer of injected plastic material 5.
[0028] Appropriately, the polymer material layer 2 has a thin thickness, for example, 0.5 mm, and the decorative element is essentially two-dimensional.
[0029] according to Figure 4 In another embodiment shown, lens 2 is a hybrid lens made of glass and plastic. According to such an embodiment, lens 2 includes a first layer 21 made of glass and a second layer 22 made of plastic. Specifically, the first glass layer 21 faces outwards, i.e., it is placed at the protruding portion of lens 2, and the second layer 22 faces the user's eye, i.e., it is placed at the recessed portion of lens 2.
[0030] Specifically, the insertion and precise positioning of decorative elements occur through the following steps:
[0031] - Prepare lens body 2, which is preferably made of plastic material and is first bent to create recessed and protruding portions of the lens body;
[0032] - At the recessed portion of the lens body, the decorative element 3 is directly glued to the curved lens body 2;
[0033] - Insert the lens body 2 into one of the two half-cavities of the mold;
[0034] - Close the mold and insert the liquid polymer 5;
[0035] - cool down;
[0036] - Open the mold and remove the lens body 2 with integrated decorative element 3.
[0037] The polymer material 5 is properly inserted into the injection mold.
[0038] The decorative element 3 can be glued directly onto the curved lens body 2, either automatically or manually.
[0039] In fact, it has been found that when decorative elements are incorporated into a lens, the lens with the decorative inserts fully performs its function, thus being protected from damage, while remaining fully visible from the outside of the lens.
[0040] Therefore, various modifications and variations can be made to the conceived lens, all of which fall within the scope of the appended claims.
[0041] Furthermore, all details can be replaced by other technically equivalent components.
[0042] In fact, the materials used, as well as the possible shapes and sizes, can be arbitrary depending on the requirements and technical conditions.
Claims
1. A spectacle lens with decorative elements, characterized in that, The eyeglass lens includes a decorative element (3) glued to a recessed portion of the lens (2), the lens being made of plastic material, and the decorative element (3) being arranged between the recessed portion of the lens (2) and another polymer material layer (5).
2. The lens according to claim 1, characterized in that, The decorative element (3) is a metal decorative element.
3. The lens according to claim 1, characterized in that, The decorative element (3) is a component made of plastic material.
4. The lens according to claim 1, characterized in that, The decorative element (3) is a composite element or a natural fiber.
5. The lens according to claim 1, characterized in that, The decorative element (3) is a functional element.
6. The lens according to claim 5, characterized in that, The decorative element (3) is a functional element containing electronic devices.
7. The lens according to claim 1 or 2, characterized in that, The decorative element (3) is visible on the outside of the lens.
8. The lens according to claim 1 or 2, characterized in that, The other polymer layer (5) is made of polycarbonate or polyamide.
9. The lens according to claim 6, wherein, The other polymer layer is functionalized.
10. The lens according to claim 1 or 2, characterized in that, The decorative element (3) is glued together by an adhesive (4).
11. The lens according to one or more of the preceding claims, wherein, The decorative element (3) is glued to the recessed area of the lens (2), and preferably glued outside the center / optical area of the lens.
12. The lens according to one or more of the preceding claims, characterized in that, The decorative element (3) is essentially two-dimensional.
13. A method for manufacturing an eyeglass lens (1) with decorative elements, comprising the following steps: - Prepare a lens body (2), which is preferably made of plastic material and is first bent to create the recessed and protruding portions of the lens body; - At the recessed portion of the lens body, the decorative element (3) is directly glued to the curved lens body (2); - Insert the lens body (2) into one of the two half-cavities of the mold; - Close the mold and insert the liquid polymer (5); - cool down; - Open the mold and remove the lens body (2) with the integrated decorative element (3).
14. The method of manufacturing an eyeglass lens with decorative elements according to claim 10, wherein, The decorative element (3) is directly glued to the curved lens body (2) in an automated manner.
15. The method of manufacturing an eyeglass lens with decorative elements according to claim 10, wherein, The decorative element (3) is glued directly onto the curved lens body (2) by hand.