Smart contact lenses and their built-in modules

Abstract

This invention provides a smart contact lens and its built-in module that can effectively improve defects that may occur in conventional smart contact lenses (e.g., stress relief). [Solution] The built-in module 2 includes an annular carrier plate 21, an electronic chip 22, a plurality of metal wirings 23 formed on the annular carrier plate 21, and a package 24. The annular carrier plate 21 has a C-shaped section 211, a buffer section 212, and a die bonding section 213. A stress-relieving groove is recessed between the C-shaped section 211 and each buffer section 212 at the outer edge of the annular carrier plate 21. In the cross-section of the built-in module 2, the die bonding section 213 is linear, each buffer section 212 is arc-shaped and has a first radius, and the C-shaped section 211 is arc-shaped and has a second radius that is larger than the first radius.

Description

Technical Field

[0001] The present invention relates to contact lenses, and particularly to smart contact lenses and their built-in modules.

Background Art

[0002] Conventional smart contact lenses are in the initial stage of research and development and have not reached the stage of popularization. Therefore, in many research and developments of conventional smart contact lenses, discussions have been carried out on how to expand or increase their functions.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In the production and manufacturing of smart contact lenses, many technical details (such as stress relief, etc.) are not considered much. Therefore, the inventor of the present application believes that the above-mentioned defects can be improved, devotes to research, applies scientific principles, and finally proposes the present invention that is reasonably designed and effectively improves the above-mentioned defects. The embodiments of the present invention provide smart contact lenses and their built-in modules that can effectively improve the defects that may occur in conventional smart contact lenses.

Means for Solving the Problems

[0004] Embodiments of the present invention disclose a smart contact lens. The smart contact lens comprises a spectacle body including an optical part and an annular mounting part surrounding the optical part, wherein a central axis passing through the center of the optical part is defined, and a built-in module embedded in the annular mounting part, wherein the built-in module has a frustum-shaped outer contour and includes a C-shaped section, two buffer sections connected to both ends of the C-shaped section, and a die bonding section connected between the two buffer sections, and stress-relieving grooves recessed between the C-shaped section and each of the buffer sections connected thereto at the outer edge, an electronic chip installed in the die bonding section, and the annular carrier plate The rear plate comprises a plurality of metal wirings formed therein, at least a portion of which are electrically connected to the electronic chip via the annular carrier plate, and a package formed in the die bonding section that embeds the electronic chip therein, wherein in a cross section perpendicular to the central axis and penetrating the electronic chip, the die bonding section is linear, each buffer section has a buffer angle of 20 to 45 degrees with respect to the central axis, each buffer section is arc-shaped and has a first radius, the center of each buffer section is not located on the central axis, and the C-shaped section is arc-shaped and has a second radius greater than the first radius.

[0005] Embodiments of the present invention further disclose an embedded module for a smart contact lens. The embedded module comprises an annular carrier plate having a frustoconical outer contour, a defined central axis, a C-shaped section, two buffer sections connected to each end of the C-shaped section, and a die bonding section connected between the two buffer sections, with stress-relieving grooves recessed between the C-shaped section and each of the buffer sections connected thereto at the outer edge; an electronic chip installed in the die bonding section; and a device formed on the annular carrier plate, at least a portion of which is electrically connected to the electronic chip via the annular carrier plate. The device includes a plurality of connected metal wirings and a package formed in the die bonding section for embedding the electronic chip therein, wherein in a cross section perpendicular to the central axis and penetrating the electronic chip, the die bonding section is linear, each buffer section has a buffer angle of 20 to 45 degrees with respect to the central axis, each buffer section is arc-shaped, the center of each buffer section is not located on the central axis, each buffer section has a first radius, and the C-shaped section is arc-shaped and has a second radius greater than the first radius.

[0006] As described above, the smart contact lens and its built-in module disclosed in the embodiments of the present invention, by ensuring structural alignment between the annular carrier plate and other components, gradually distributes stress concentration on the die bonding section by the electronic chip and package through two buffer sections, which are then released by two stress-relieving grooves, thus avoiding impact on areas where multiple metal wirings are mainly distributed (e.g., C-shaped sections). This effectively improves the production yield and operational efficiency of the smart contact lens.

[0007] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention, however, these descriptions and drawings are intended solely to illustrate the present invention and do not limit the scope of protection of the present invention in any way. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic perspective view of a smart contact lens according to an embodiment of the present invention. [Figure 2] This is a schematic plan view of a smart contact lens with the lens body omitted, as shown in Figure 1. [Figure 3] Figure 2 is a schematic cross-sectional view of the vertical central axis. [Figure 4] This is a schematic cross-sectional view along line IV-IV in Figure 1. [Figure 5] This is a schematic perspective view of another embodiment of the smart contact lens according to the present invention. [Figure 6] This is a schematic plan view of a smart contact lens with the lens body omitted, as shown in Figure 5. [Figure 7] Figure 6 is a schematic cross-sectional view of the vertical central axis. [Figure 8] This is a schematic perspective view of yet another embodiment of the smart contact lens according to an embodiment of the present invention. [Figure 9] This is a schematic plan view of a smart contact lens with the lens body omitted, as shown in Figure 8. [Figure 10] Figure 9 is a schematic cross-sectional view of the vertical central axis. [Modes for carrying out the invention]

[0009] The embodiments of the "smart contact lens and its built-in module" disclosed herein will be described below with reference to specific examples. Those skilled in the art will be able to understand the advantages and effects of the present invention from the information disclosed herein. The present invention can be carried out or applied through other different specific embodiments, and the various detailed descriptions herein can be modified and changed in various ways without departing from the spirit of the invention, based on different perspectives and applications. It should also be noted in advance that the drawings of the present invention are for illustrative purposes only and are not based on actual dimensions. The technical content relating to the present invention will be described in more detail using the following embodiments, but the disclosed content is not intended to limit the scope of protection of the present invention.

[0010] In this specification, terms such as “first,” “second,” “third,” and “fourth” may be used to describe various elements, but it should be understood that these elements should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term “or” in this specification should be understood to include any one or more of the items listed in relation to each other, depending on the actual context.

[0011] An embodiment of the present invention will be described with reference to Figures 1 to 10. As shown in Figures 1 to 4, this embodiment discloses a smart contact lens 100 (not shown) that can be worn on the user's eye or implanted in the eye according to design requirements. However, the present invention is not limited thereto.

[0012] Furthermore, in this embodiment, the smart contact lens 100 may have a function to correct refractive errors. Refractive errors include hyperopia, myopia, astigmatism, presbyopia, or astigmatism-presbyopia. Alternatively, the smart contact lens 100 may be a makeup lens without corrective function.

[0013] In this embodiment, the smart contact lens 100 includes a glasses frame 1 and a built-in module 2 embedded in the glasses frame 1. That is, since the built-in module 2 is connected to the glasses frame 1 without any gaps and is not exposed to the outside of the glasses frame 1, any holes formed in the built-in module 2 are filled by the glasses frame 1.

[0014] In this embodiment, the eyeglass body 1 is formed by solidifying a hydrogel or silicone hydrogel. Examples of hydrogels include, but are not limited to, p-HEMA. The eyeglass body 1 includes an optical section 11 and an annular mounting section 12 surrounding the optical section 11. The optical section 11 may or may not have a function to correct refractive errors, depending on the design requirements.

[0015] Furthermore, the eyeglass body 1 has a defined central axis L that passes through the center of the optical section 11, meaning that both the center of the optical section 11 and the center of the annular mounting section 12 are located on the central axis L. Here, the annular mounting section 12 is connected to the outer edge of the optical section 11 and is formed in a substantially annular shape, and the built-in module 2 is embedded inside the annular mounting section 12. Note that the manufacturing method for embedding the built-in module 2 in the annular mounting section 12 (or the manufacturing method for the smart contact lens 100) can be adjusted and modified according to design requirements. However, the present invention is not limited thereto.

[0016] It should be noted that in this embodiment, the smart contact lens 100 is described by combining the glasses body 1 with the built-in module 2, but the present invention is not limited thereto. For example, in other embodiments not shown in this specification, the built-in module 2 may be applied (for example, sold) alone according to actual needs, or may be used in combination with other devices.

[0017] In this embodiment, the built-in module 2 includes an annular carrier plate 21, an electronic chip 22 installed on the annular carrier plate 21, a plurality of metal wirings 23 formed on the annular carrier plate 21, and a package 24 covering the electronic chip 22. Here, in this embodiment, the annular carrier plate 21 is described as a flexible printed circuit board (FPCB). The thickness of the annular carrier plate 21 is preferably 10 μm to 150 μm. Examples of the polymer material of the annular carrier plate 21 include polyimide (PI) or liquid crystal polymer (LCP), but the present invention is not limited thereto.

[0018] Furthermore, the outer contour of the annular carrier plate 21 is frustum-shaped. The annular carrier plate 21 has a C-shaped section 211, two buffer sections 212 respectively connected to both ends of the C-shaped section 211, and a die bonding section 213 connected between the two buffer sections 212. In addition, the electronic chip 22 is installed on the die bonding section 213, and the package 24 is formed on the die bonding section 213 to embed the electronic chip 22 therein. The plurality of metal wirings 23 are formed on the annular carrier plate 21, and at least a part of the plurality of metal wirings 23 is electrically connected to the electronic chip 22 through the annular carrier plate 21.

[0019] It is necessary to explain that since the electronic chip 22 cannot be deformed, the package 24 is used to ensure that the electronic chip 22 can maintain its existing structure. However, this causes stress to concentrate on the annular carrier plate 21, which will affect the operating efficiency of the built-in module 2. Therefore, the annular carrier plate 21 preferably has at least some of the following features to reduce the problem of stress concentration on the annular carrier plate 21.

[0020] On the outer edge 21a of the annular carrier plate 21, a stress relief groove 211a is formed between the C-shaped section 211 and each buffer section 212 connected thereto. That is, the die bonding sections 213 and the two buffer sections 212 are approximately located between the two stress relief grooves 211a. Alternatively, each stress relief groove 211a may be regarded as the local structure of the corresponding buffer section 212. In this embodiment, the two stress relief grooves 211a adopt the same appearance, and the two stress relief grooves 211a are equidistant from the die bonding section 213, but the present invention is not limited thereto.

[0021] Furthermore, with respect to the smart contact lens 100, in a cross-section (for example, FIG. 3) perpendicular to the central axis L and passing through the electronic chip 22, the die bonding section 213 is linear, each buffer section 212 has a buffer angle σ212 of 20 degrees to 45 degrees with respect to the central axis L, each buffer section 212 is arc-shaped and has a first radius R1, the center of each buffer section 212 is not located on the central axis L, the C-shaped section 211 is arc-shaped and has a second radius R2 larger than the first radius R1.

[0022] Therefore, in this embodiment, the smart contact lens 100 ensures structural alignment between the annular carrier plate 21 and other components, so that stress concentration on the die bonding section 213 by the electronic chip 22 and package 24 is gradually distributed by two buffer sections 212 and subsequently released by two stress-relieving grooves 211a, thereby avoiding impact on areas where multiple metal wirings 23 are mainly distributed (e.g., the C-shaped section 211). In addition, two buffer sections 212 with predetermined angles are provided on opposite sides of the die bonding section 213, thereby more stably releasing the stress generated in the die bonding section 213.

[0023] From another perspective, with respect to the smart contact lens 100, in a plan view along the central axis L (for example, Figure 2), the smart contact lens 100 is defined by a vertical axis Y that penetrates the central axis L and the electronic chip 22, and a horizontal axis X perpendicular to the vertical axis Y. As a result, the plan view is divided into a first quadrant Q1, a second quadrant Q2, a third quadrant Q3, and a fourth quadrant Q4 via the vertical axis Y and the horizontal axis X, and the two stress-relieving grooves 211a are located in the third quadrant Q3 and the fourth quadrant Q4, respectively.

[0024] Furthermore, the annular carrier plate 21 has two stress-regulating grooves 212a recessed in the C-shaped section 211 of the outer edge 21a, and the groove walls of each stress-regulating groove 212a function as stress-relieving paths, effectively regulating stress concentration caused by press-forming the annular carrier plate 21 into a frustoconical contour, and / or further relieving stress concentration caused by forming multiple metal wirings 23 in the C-shaped section 211.

[0025] In the plan view, the two stress adjustment grooves 212a are located in the first quadrant Q1 and the second quadrant Q2, respectively. Each stress-blocking groove 211a has a first angle σ1 of 10 to 30 degrees with respect to the central axis L, which is smaller than the buffer angle σ212. Each stress adjustment groove 212a has a second angle σ2 of 10 to 80 degrees with respect to the central axis L. However, the present invention is not limited thereto.

[0026] The above describes the stress relief design at the outer edge 21a of the annular carrier plate 21. Below, other stress relief designs for the annular carrier plate 21 will be described. Here, in the annular carrier plate 21 (for example, the C-shaped section 211), a plurality of through-circular arc holes 214 and a plurality of round holes 215 are formed, and it is preferable that the plurality of circular arc holes 214 and the plurality of round holes 215 are located between any two adjacent metal wirings 23, thereby relieving the stress concentration caused by forming the plurality of metal wirings 23 in the C-shaped section 211.

[0027] More specifically, the center of each arc-shaped hole 214 lies on the central axis L, and the multiple arc-shaped holes 214 are arranged in a ring around the central axis L. Herein, the width of each arc-shaped hole 214 is greater than or equal to the diameter of any one circular hole 215, each arc-shaped hole 214 has a central angle σ214 of 90 degrees or less (e.g., 10 to 80 degrees) with respect to the central axis L, and at least one circular hole 215 is located between any two arc-shaped holes 214 that are arranged in a ring and adjacent to each other, but the present invention is not limited thereto.

[0028] It is particularly important to explain that the number and position of the multiple arc-shaped holes 214 and multiple circular holes 215 can be adjusted and modified according to design requirements, thereby effectively improving stress concentration phenomena. Furthermore, the multiple arc-shaped holes 214 and multiple circular holes 215 can also improve the oxygen permeability of the smart contact lens 100, providing users with a better user experience.

[0029] In this embodiment, the multiple metal wirings 23 include the antenna 231, the multiple sensing wirings 232 located outside the antenna 231, and the multiple structural reinforcement wirings 233 located outside the antenna 231, but the present invention is not limited thereto. For example, in other embodiments not shown herein, the multiple structural reinforcement wirings 233 may be omitted or replaced with other components according to design requirements.

[0030] The antenna 231 is C-shaped and positioned along the inner edge 21b of the annular carrier plate 21, with its two ends 2313 located in the die bonding section 213 and connected to the electronic chip 22. In this embodiment, the antenna 231 has a main section 2311 and two side wing sections 2312 connected to both ends of the main section 2311, wherein the length of the main section 2311 is longer than the length of any one side wing section 2312, the width of the main section 2311 is less than the width of any one side wing section 2312, and the two side wing sections 2312 each have two ends 2313.

[0031] Multiple sensing wires 232 are located outside the two side wing sections 2312 of the antenna 231 and are electrically connected to the electronic chip 22. In Figures 1 to 4 of this embodiment, the multiple sensing wires 232 are described based on their distribution mainly in the third quadrant Q3 and the fourth quadrant Q4, but the specific structure and distribution of the multiple sensing wires 232 can be adjusted and modified according to design requirements, and are not limited to Figures 1 to 4.

[0032] For example, as shown in Figures 5 to 10, each sensing wire 232 may be distributed in an annular manner in the first quadrant Q1, second quadrant Q2, third quadrant Q3, and fourth quadrant Q4. Furthermore, structural reinforcing wires 233 may be omitted for multiple metal wires 23. As the distribution area of ​​multiple sensing wires 232 increases, arc holes 214 and round holes 215 may be further added to the annular carrier plate 21, depending on the design requirements.

[0033] As shown in Figures 1 to 4, the multiple structural reinforcing wires 233 are arranged in a ring on the outside of the main section 2311, spaced apart from each other. Each structural reinforcing wire 233 is used solely as structural reinforcement in this embodiment and has no electrical function whatsoever. More specifically, the multiple structural reinforcing wires 233 are arranged spaced apart from each other on the outside of two arc-shaped holes 214, and the two arc-shaped holes 214 are arranged in a ring on the outside of the main section 2311, spaced apart from each other. That is, two arc-shaped holes 214 (and multiple circular holes 215 located between them) are positioned between the multiple structural reinforcing wires 233 and the main section 2311.

[0034] [Beneficial effects of the embodiment] As described above, the smart contact lens and its built-in module disclosed in the embodiments of the present invention, by ensuring structural alignment between the annular carrier plate and other components, gradually distributes stress concentration on the die bonding section by the electronic chip and package through two buffer sections, which are then released by two stress-relieving grooves, thus avoiding impact on areas where multiple metal wirings are mainly distributed (e.g., C-shaped sections). This effectively improves the production yield and operational efficiency of the smart contact lens.

[0035] The information disclosed herein represents only preferred embodiments of the present invention and does not limit the scope of the claims. Accordingly, all equivalent technical modifications made using the specification and drawings of the present invention are included within the scope of the claims. [Explanation of Symbols]

[0036] 100: Smart Contact Lenses 1: Glasses body 11:Optics department 12: Annular mounting part 2: Built-in module 21: Ring-shaped carrier plate 21a: Outer edge 211a: Stress-relieving groove 212a: Stress adjustment groove 21b: Inner edge 211: C-shaped section 212: Buffer section 213: Die bonding section 214: Arc hole 215: Round hole 22: Electronic chips 23: Metal wiring 231: Antenna 2311: Main Section 2312: Side wing section 2313: End part 232: Sensing wiring 233: Structural reinforcement wiring 24: Package L: Center axis line σ212: Buffer angle σ1: 1st angle σ2: 2nd angle σ214: Central angle R1: First radius R2: 2nd radius Y: Vertical axis X: Horizontal axis Q1: Quadrant 1 Q2: Quadrant 2 Q3: Third Quadrant Q4: Quadrant 4

Claims

1. A spectacle body including an optical part and an annular mounting part surrounding the optical part, wherein a central axis passing through the center of the optical part is defined, The built-in module embedded in the annular mounting portion, Equipped with, The aforementioned built-in module is An annular carrier plate having a frustoconical outer contour, a C-shaped section, two buffer sections connected to both ends of the C-shaped section, and a die bonding section connected between the two buffer sections, wherein stress-relieving grooves are recessed between the C-shaped section and each of the buffer sections connected thereto at the outer edge, An electronic chip installed in the die bonding section, A plurality of metal wirings formed on the annular carrier plate, at least a portion of which are electrically connected to the electronic chip via the annular carrier plate, A package formed in the die bonding section and embedding the electronic chip inside it, Includes, In a cross-section perpendicular to the central axis and penetrating the electronic chip, the die bonding section is linear, each buffer section has a buffer angle of 20 to 45 degrees with respect to the central axis, each buffer section is arc-shaped and has a first radius, the center of each buffer section is not located on the central axis, and the C-shaped section is arc-shaped and has a second radius larger than the first radius. Smart contact lenses featuring the following characteristics.

2. In the plan view along the central axis, a vertical axis passing through the central axis and the electronic chip, and a horizontal axis perpendicular to the vertical axis are defined, thereby dividing the plan view into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant via the vertical axis and the horizontal axis, and the two stress-blocking grooves are located in the third and fourth quadrants, respectively. The smart contact lens according to claim 1.

3. The annular carrier plate has two stress adjustment grooves recessed in the C-shaped section of the outer edge, and in the plan view, the two stress adjustment grooves are located in the first quadrant and the second quadrant, respectively. The smart contact lens according to claim 2.

4. In the plan view, each of the stress-blocking grooves has a first angle of 10 to 30 degrees with respect to the central axis, which is smaller than the buffer angle, and each of the stress-regulating grooves has a second angle of 10 to 80 degrees with respect to the central axis. The smart contact lens according to claim 3.

5. In the annular carrier plate, a plurality of arc holes are formed, each of the arc holes is located between any two adjacent metal wirings, and the center of each arc hole lies on the central axis. The smart contact lens according to claim 1.

6. In the annular carrier plate, a plurality of circular holes are formed, the width of each arc hole is greater than or equal to the diameter of any one of the circular holes, the plurality of arc holes are arranged in a ring around the central axis, and at least one circular hole is positioned between any two adjacent arc holes arranged in a ring. The smart contact lens according to claim 5.

7. Multiple of the aforementioned metal wires are An antenna that is C-shaped, positioned along the inner edge of the annular carrier plate, with two ends located in the die bonding section and connected to the electronic chip, A plurality of sensing wires located outside the antenna and electrically connected to the electronic chip, including, The smart contact lens according to claim 1.

8. The antenna has a main section and two side wing sections connected to both ends of the main section, wherein the width of the main section is smaller than the width of any one of the side wing sections, and the two side wing sections each have two end portions. The aforementioned annular carrier plate is Two circular arc holes are arranged in a ring shape and spaced apart from each other on the outside of the main section, A plurality of circular holes positioned between the two aforementioned arc-shaped holes, It has, The width of each of the arc holes is greater than or equal to the diameter of any one of the round holes. The smart contact lens according to claim 7.

9. The plurality of metal wirings include a plurality of structural reinforcing wirings, which are arranged in a ring spaced apart from each other outside the two arc-shaped holes, and each of the structural reinforcing wirings has no electrical function whatsoever. The smart contact lens according to claim 8.

10. An annular carrier plate having a frustum-shaped outer contour, a defined central axis, a C-shaped section, two buffer sections connected to each end of the C-shaped section, and a die bonding section connected between the two buffer sections, wherein stress-relieving grooves are recessed between the C-shaped section and each of the buffer sections connected thereto at the outer edge, An electronic chip installed in the die bonding section, A plurality of metal wirings formed on the annular carrier plate, at least a portion of which are electrically connected to the electronic chip via the annular carrier plate, A package formed in the die bonding section and embedding the electronic chip inside it, Includes, In a cross-section perpendicular to the central axis and penetrating the electronic chip, the die bonding section is linear, each buffer section has a buffer angle of 20 to 45 degrees with respect to the central axis, each buffer section is arc-shaped, the center of each buffer section is not located on the central axis, each buffer section has a first radius, and the C-shaped section is arc-shaped and has a second radius larger than the first radius. A built-in module for smart contact lenses characterized by the following features.

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