Contact lenses

Abstract

The present invention relates to a contact lens. The contact lens includes a lens body and a built-in module. The lens body includes an optical part and a ring-shaped wearing part surrounding the optical part. The built-in module includes a preform made of an eye-friendly material and a wiring structure embedded in the preform. The preform is completely embedded in the ring-shaped wearing part of the lens body, and the preform is ring-shaped and surrounds the outside of the optical part. The preform and the lens body are connected without any gaps to form a bonding interface, and are disposed at a distance from the rear surface and the front surface of the lens body, respectively. A local surface of the wiring structure is aligned with the surface of the preform and bonded to the ring-shaped wearing part. As a result, the wiring structure is embedded and positioned in advance in the preform, and the wiring structure can be completely embedded and positioned in the lens body.

Description

[Technical Field]

[0001] The present invention relates to contact lenses, and more particularly to smart contact lenses. [Background technology]

[0002] Existing smart contact lenses include a lens body and a wiring structure embedded within the lens body, but because the wiring structure is planar, it is difficult to completely embed and position it within the approximately spherical lens body. The inventors believed that the above drawbacks could be overcome, and after extensive research involving the application of scientific principles, proposed the present invention, which has a rational design and effectively overcomes the above drawbacks. Summary of the Invention [Problem to be solved by the invention]

[0003] An object of embodiments of the present invention is to provide a contact lens that can effectively improve upon drawbacks that may arise in existing smart contact lenses. [Means for solving the problem]

[0004] An embodiment of the present invention discloses a contact lens, the contact lens comprising a lens body and a built-in module structure. The lens body includes an optical portion and a ring-shaped wearing portion surrounding the optical portion. The lens body has a posterior surface and an anterior surface, the posterior surface being adapted to be worn on a user's eye. The built-in module comprises a preform and a wiring structure. The preform is made of an eye-friendly material. The preform is completely embedded in the lens body, and a seamless connection is formed between the preform and the lens body to form a bonding interface, which is spaced apart from the posterior surface and the anterior surface, respectively. The preform comprises an inner optical layer and a covering ring. The inner optical layer is disposed within the optical portion, and the optical portion is divided by the inner optical layer to form an anterior optical layer and a posterior optical layer, which are spaced apart from each other. The covering ring extends from an edge of the inner optical layer and is disposed within the ring-shaped wearing portion. The wiring structure is embedded within the covering ring, and a local surface of the wiring structure is aligned with the outer surface of the covering ring and bonded to the ring-shaped wearing portion.

[0005] Preferably, the lens body material and the eye-friendly material from which the preform is made comprise hydrogel or silicone hydrogel, respectively, and the posterior and anterior surfaces of the lens body are free of any recesses.

[0006] Preferably, the refractive power of the contact lens is collectively provided by a front optical layer, a rear optical layer, and an inner optical layer sandwiched between the front and rear optical layers.

[0007] Preferably, the contact lens includes an electronic component connected to a wiring structure, the electronic component being embedded in the covering ring, with a localized surface of the electronic component flush with the outer surface of the covering ring and bonded to the ring-shaped wearing part.

[0008] Preferably, the wiring structure includes wiring connected to the electronic component, and the wiring is not formed on any carrier substrate.

[0009] Preferably, the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring being connected to the electronic component.

[0010] Preferably, the carrier substrate includes a C-shaped segment and a connecting segment. At least one through-hole is formed in the C-shaped segment, and a covering ring is filled in the at least one through-hole. The connecting segment is connected between both end edges of the C-shaped segment. When viewed from above, the area of ​​the at least one through-hole occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment.

[0011] Preferably, the optical portion has a central axis defined therein, and when viewed from the top of the contact lens, the central axis is defined as the origin and is divided counterclockwise into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, and the multiple regions of the at least one through hole are distributed in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant, respectively, and the area difference between any two regions does not exceed 50%.

[0012] Preferably, the optical portion defines a central axis, and the carrier substrate has a plurality of radial cuts formed from its outer edge toward the central axis, thereby forming a shaped curvature in the carrier substrate. The covering ring fills the plurality of radial cuts.

[0013] Preferably, the rear surface of the lens body has a predetermined curvature for wearing on the eye, and the front surface has a visible surface corresponding to the optical portion and a free-form surface corresponding to the ring-shaped wearing portion, the visible surface having a first curvature different from a second curvature of the free-form surface, and the thickness of the ring-shaped wearing portion gradually increases toward the electronic component.

[0014] Preferably, the ring-shaped wearing part has a C-shaped layout area and a lower eyelid area located between both ends of the layout area, and a local surface of the electronic component is bonded to the lower eyelid area. When the contact lens is worn on the eye, the area having the maximum thickness of the ring-shaped wearing part corresponds to the lower eyelid of the eye, and the area having the minimum thickness of the ring-shaped wearing part corresponds to the upper eyelid of the eye.

[0015] Embodiments of the present invention also disclose other contact lenses. The contact lens comprises a lens body and a built-in module. The lens body has an optical portion and a ring-shaped wearing portion surrounding the optical portion. The lens body has a posterior surface and an anterior surface, and the posterior surface is adapted to be worn on the user's eye. The built-in module comprises a preform and a wiring structure. The preform is made of an eye-friendly material. The preform is completely embedded in the ring-shaped wearing portion of the lens body, and the ring-shaped preform surrounds the outside of the optical portion. A bonding interface is formed between the preform and the lens body by seamlessly connecting them, and the bonding interface is spaced apart from the posterior surface and the anterior surface. The wiring structure is embedded in the preform. A local surface of the wiring structure is aligned with the surface of the preform and bonded to the ring-shaped wearing portion.

[0016] Preferably, the lens body material and the eye-friendly material from which the preform is made comprise hydrogel or silicone hydrogel, respectively, and the posterior and anterior surfaces of the lens body are free of any recesses.

[0017] Preferably, the contact lens includes an electronic component connected to a wiring structure, the electronic component being embedded in the covering ring, and a local surface of the electronic component being aligned with the outer surface of the covering ring and bonded to the ring-shaped wearing part.

[0018] Preferably, the wiring structure includes wiring connected to the electronic component, and the wiring is not formed on any carrier substrate.

[0019] Preferably, the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring being connected to the electronic component. The carrier substrate includes a C-shaped segment and a connecting segment. At least one through-hole is formed in the C-shaped segment, and a covering ring is filled in the at least one through-hole. The connecting segment is connected between both end edges of the C-shaped segment. In a top view of the contact lens, the area of ​​the at least one through-hole occupies 1% to 85% of the area surrounded by the outer contour of the C-shaped segment.

[0020] Preferably, the optical portion has a central axis defined therein, and when viewed from the top, the contact lens is divided counterclockwise into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant, with the central axis defined as the origin, and the plurality of portions of the at least one through hole being distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, respectively, and the area difference between any two portions does not exceed 50%.

[0021] Preferably, the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring being connected to the electronic component. The optical portion defines a central axis, and the carrier substrate is formed with a plurality of radial cuts from its outer edge toward the central axis, so that the carrier substrate has a shaped curvature. The covering ring fills the plurality of radial cuts.

[0022] Preferably, the rear surface of the lens body has a predetermined curvature for wearing on the eye, and the front surface has a visible surface corresponding to the optical portion and a free-form surface corresponding to the ring-shaped wearing portion, the visible surface having a first curvature different from a second curvature of the free-form surface, and the thickness distribution of the ring-shaped wearing portion gradually increases toward the electronic component.

[0023] Preferably, the ring-shaped wearing part has a C-shaped layout area and a lower eyelid area located between both ends of the layout area, and a local surface of the electronic component is bonded to the lower eyelid area. When the contact lens is worn on the eye, the area having the maximum thickness of the ring-shaped wearing part corresponds to the lower eyelid of the eye, and the area having the minimum thickness of the ring-shaped wearing part corresponds to the upper eyelid of the eye.

[0024] The contact lenses disclosed in the above-described embodiments of the present invention have a preform made of an eye-friendly material, and the wiring structure is embedded and positioned in the preform in advance, so that the wiring structure can be completely embedded and positioned in the lens body through the preform during the contact lens production process.

[0025] In order to better understand the features and technical contents of the present invention, the following detailed description of the present invention and the accompanying drawings are provided for illustrative purposes only and are not intended to limit the scope of the present invention. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic perspective view showing a contact lens of a first embodiment according to the present invention. [Figure 2] FIG. 2 is a schematic top view of FIG. [Figure 3] 2 is a schematic plan view of the contact lens of FIG. 1 worn on the user's eye. FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. [Figure 5] FIG. 2 is a cross-sectional view taken along the cross-sectional line VV in FIG. [Figure 6] FIG. 2 is a perspective schematic view showing another type of contact lens in the first embodiment according to the present invention. [Figure 7] FIG. 7 is a schematic top view of FIG. [Figure 8] FIG. 7 is a schematic cross-sectional view taken along the cross-sectional line VIII-VIII in FIG. 6. [Figure 9] FIG. 2 is a schematic perspective view showing a contact lens according to a second embodiment of the present invention. [Figure 10] FIG. 10 is a schematic top view of FIG. [Figure 11] FIG. 10 is a schematic cross-sectional view taken along the cross-sectional line XI-XI in FIG. [Figure 12] FIG. 1 is a schematic perspective view showing a contact lens according to a third embodiment of the present invention. [Figure 13] FIG. 13 is a schematic top view of FIG. [Figure 14] FIG. 14 is a schematic cross-sectional view taken along the cross-sectional line XIV-XIV in FIG. [Figure 15] FIG. 10 is a perspective schematic view of another type of contact lens according to the third embodiment of the present invention. [Figure 16]FIG. 16 is a schematic top view of FIG. [Figure 17] FIG. 16 is a cross-sectional view taken along the line XVII-XVII in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following describes the embodiments of the "contact lens" disclosed by the present invention through specific specific embodiments. Those skilled in the art can understand the merits and advantages of the present invention from the disclosure of this specification. The present invention can be implemented or applied in other different specific embodiments. Each detail in this specification can also be modified and changed equivalently based on different perspectives or applications without departing from the spirit of the present invention. Furthermore, the drawings of the present invention are for simple and schematic illustration only and do not represent actual dimensions. The following embodiments will further explain the technical content of the present invention, but the disclosed content does not limit the protection scope of the present invention.

[0028] Throughout this specification, terms such as "first," "second," and "third" may be used to describe various components or signals, but it should be understood that these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another or one signal from another. Furthermore, the term "or" as used herein may include any one or combination of the associated listed items, depending on the actual circumstances.

[0029] [First embodiment] Please refer to the first embodiment of the present invention shown in Figures 1 to 8. As shown in Figures 1 to 5, in this embodiment, a contact lens 100 (also referred to as a smart contact lens) is disclosed. The contact lens 100 is worn on a user's eye 200 according to design requirements (e.g., Figure 3). )child This can be done.

[0030] Furthermore, in this embodiment, the contact lens 100 may have a function of correcting refractive errors, including hyperopia, myopia, astigmatism, presbyopia, or astigmatism-presbyopia, or the contact lens 100 may be a makeup lens without any corrective function.

[0031] In this embodiment, the contact lens 100 includes a lens body 1 and an embedded module 10 embedded in the lens body 1. The embedded module 10 includes a preform 4, an electronic component 2 embedded in the preform 4, and a wiring structure 3 embedded in the preform 4 and electrically coupled to the electronic component 2, but the present invention is not limited thereto. For example, in other embodiments not shown in the drawings, the embedded module 10 may include only the preform 4 and the wiring structure 3, and omit the electronic component 2, depending on design requirements. Below, each component of the contact lens 100 of this embodiment will be described in order, and the connection relationships between multiple components will be described as appropriate.

[0032] In this embodiment, the lens body 1 is formed by hardening hydrogel or silicone hydrogel, such as, but not limited to, p-HEMA. The lens body 1 includes an optical part 11 and a ring-shaped wearing part 12 surrounding the optical part 11. The optical part 11 may or may not have a refractive error correction function depending on design requirements. It should be noted that the optical part 11 may have embedded components depending on design requirements (e.g., when the contact lens 100 is applied to a digital zoom device).

[0033] Furthermore, a central axis L is defined in the optical portion 11, and the centers of the optical portion 11 and the ring-shaped wearing portion 12 are both located on the central axis L. The ring-shaped wearing portion 12 is connected to the outer edge of the optical portion 11 and has a substantially annular shape. More specifically, the preform 4 is completely embedded in the lens body 1, and is connected to the lens body 1 without any gaps, forming a bonding interface 43 between the preform 4 and the lens body 1.

[0034] The preform 4 has an inner optical layer 41 and a covering ring 42 extending integrally from the edge of the inner optical layer 41, and the thickness of the preform 4 is arranged non-uniformly, but the present invention is not limited thereto. For example, in another embodiment of the present invention (not shown), the preform 4 may have a structure of uniform thickness according to design requirements.

[0035] The inner optical layer 41 is disposed within the optical portion 11, and the optical portion 11 is divided by the inner optical layer 41 to form a front optical layer 111 and a rear optical layer 112 spaced apart from each other. As a result, the optical properties (e.g., refractive power) of the contact lens 100 are provided by the front optical layer 111, the rear optical layer 112, and the inner optical layer 41 sandwiched between the front optical layer 111 and the rear optical layer 112 in cooperation with each other, allowing the contact lens 100 to meet a wider variety of requirements.

[0036] The covering ring 42 is disposed within the ring-shaped wearing part 12, and the electronic component 2 and the wiring structure 3 are embedded within the covering ring 42. The manufacturing method for embedding the electronic component 2 and the wiring structure 3 in the covering ring 42 (or the manufacturing method for the built-in module 10) can be adjusted or changed according to design requirements, and the present invention is not limited thereto.

[0037] Furthermore, the preform 4 is made of an eye-friendly material, which may include hydrogel (e.g., p-HEMA) or silicone hydrogel. It is preferable that the properties (e.g., oxygen permeability) of the eye-friendly material used in the preform 4 are similar to the material properties of the lens body 1. However, the preform 4 and the lens body 1 may be made of different materials depending on design requirements, and the present invention is not limited thereto.

[0038] As described above, the contact lens 100 disclosed in the embodiment of the present invention has the preform 4 made of the eye-friendly material, and the wiring structure 3 (and the electronic component 2) is embedded and positioned in the preform 4 in advance, which makes it possible for the wiring structure 3 (and the electronic component 2) to be completely embedded and positioned within the lens body 1 through the preform 4 during the production and manufacturing process of the contact lens 100.

[0039] More specifically, when the wiring structure 3 (and the electronic component 2) is placed in a molding die (not shown), the molding die abuts against a local surface of the wiring structure 3, thereby accurately positioning the wiring structure 3 (and the electronic component 2) at a predetermined position, which is advantageous for forming the preform 4 that is injected and hardened in the molding die to cover the wiring structure 3 (and the electronic component 2).

[0040] More specifically, the ring-shaped wearing part 12 has a C-shaped layout area 121 and a lower eyelid area 122 located between both ends of the layout area 121, and the electronic component 2 is located in the lower eyelid area 122. When the contact lens 100 is worn on the eye 200, the positions of the lower eyelid area 122 and the electronic component 2 correspond to the lower eyelid 201 of the eye 200, which has a relatively low sensitivity, thereby effectively reducing the foreign body sensation felt by the user.

[0041] 2 to 5, when viewed from another angle, the surface of the lens body 1 includes a posterior surface 1b and a front surface 1a located on the opposite side thereof. No recesses (or holes) are formed in the posterior surface 1b and the front surface 1a of the lens body 1, and each is spaced apart from the bonding interface 43. The posterior surface 1b has a predetermined curvature suitable for wearing on the eye 200 of a user. In other words, the value of the predetermined curvature is related only to the eye 200.

[0042] Furthermore, the anterior surface 1a has a visible surface 11a corresponding to the optical part 11 and a free-form surface 12a corresponding to the ring-shaped wearing part 12, and the visible surface 11a has a first curvature related to an optical design required to correct refractive error. Alternatively, the first curvature of the visible surface 11a can form a zero-power structure together with the posterior surface 1b.

[0043] Furthermore, the first curvature of the visible surface 11a is different from the second curvature of the free-form surface 12a, so that the thickness distribution of the ring-shaped wearing part 12 gradually increases toward the electronic component 2 (e.g., the lower eyelid region 122), but the present invention is not limited thereto. For example, in another embodiment (not shown) of the present invention, the first curvature may be substantially equal to the second curvature, and the thicknesses of the ring-shaped wearing part 12 may be substantially equal.

[0044] Viewed from another angle, the contact lens 100 can have at least one electronic component 2 embedded in any one portion of the ring-shaped wearing part 12 via the preform 4 according to design requirements. For example, in another embodiment (not shown) of the present invention, at least one electronic component 2 is embedded in each of the preforms 4 on both horizontal sides of the ring-shaped wearing part 12, so that the thickness of the ring-shaped wearing part 12 is thickest in the horizontal direction of the eye and gradually becomes thinner in the vertical direction of the eye. This configuration method makes it possible to accommodate at least two sets of the electronic components 2, thereby reducing the foreign body sensation when wearing the contact lens 100.

[0045] As described above, the contact lens 100 disclosed in the embodiment of the present invention has the free-form surface 12a formed on the front surface 1a of the lens body 1, so that the thickness of the layout region 121 does not need to be perfectly matched to the thickness of the lower eyelid region 122. As a result, the layout region 121 can be made thinner, which effectively improves the oxygen permeability of the layout region 121 and reduces the foreign body sensation when wearing the contact lens 100.

[0046] In order to further effectively improve the oxygen permeability of the layout region 121 and reduce the foreign body sensation when wearing the contact lens 100, it is desirable that the contact lens 100 have at least one of the following characteristics by adjusting the second curvature of the free-form surface 12a, but the present invention is not limited thereto.

[0047] The maximum thickness Tmax of the ring-shaped wearing part 12 (the portion where the covering ring 42 is embedded) is located in the region where the electronic component 2 is arranged (e.g., the lower eyelid region 122), and the minimum thickness Tmin of the ring-shaped wearing part 12 (the portion where the covering ring 42 is embedded) is located in a portion of the layout region 121 away from the lower eyelid region 122 (e.g., the top of the layout region 121 in FIG. 4). In other words, when the contact lens 100 is worn on the eye 200, the portion of the ring-shaped wearing part 12 (where the covering ring 42 is embedded) and having the maximum thickness Tmax corresponds to the lower eyelid 201 of the eye 200, and the portion of the ring-shaped wearing part 12 (where the covering ring 42 is embedded) and having the minimum thickness Tmin corresponds to the upper eyelid 202 of the eye 200. In this embodiment, the maximum thickness Tmax and the minimum thickness Tmin correspond to the user's lower eyelid 201 and upper eyelid 202, but the present invention does not limit the relative positional relationship between the thickness of the contact lens 100 and the user's upper eyelid 201 and lower eyelid 202 to this.

[0048] The wiring structure 3 may exist alone in the preform 4 (not shown) or in combination with the electronic component 2, and may be electrically or physically driven to perform at least one of a number of functions, including receiving energy, transmitting wireless signals, digital calculations, sensor monitoring, applying pressure, emitting current, projecting images, optical zooming, and storing power, although the present invention is not limited thereto.

[0049] The local surface of the wiring structure 3 is aligned with the outer surface of the covering ring 42 and bonded to the ring-shaped mounting part 12. It should be noted that, as shown in FIGS. 1 to 5 , the wiring structure 3 in this embodiment includes a carrier substrate 31 and wirings 32 (e.g., metal wirings) formed on the carrier substrate 31, and the wirings 32 are connected to and electrically coupled with the electronic components 2, but the present invention is not limited thereto. For example, as shown in FIGS. 6 to 8 , the wiring structure 3 includes wirings 32 connected to the electronic components 2, but the wirings 32 may not be formed on any carrier substrate 31. That is, the embedded module 10 pre-positions the wirings 32 using the preform 4, thereby preventing the wirings 32 from moving or deforming when the lens body 1 is molded.

[0050] In this embodiment, as shown in Figures 1 to 5, the carrier substrate 31 is formed into a predetermined curved structure through room temperature or high temperature pressing of a press molding die, so that the carrier substrate 31 has a formed curvature different from the second curvature, and the formed curvature is preferably close to the predetermined curvature of the rear surface 1b (for example, the formed curvature is 100% to 110% of the predetermined curvature), but the present invention is not limited thereto.

[0051] In this embodiment, the carrier substrate 31 is a flexible printed circuit board (FPCB) having a thickness of 10 μm to 300 μm, and the thickness of the carrier substrate 31 is preferably 40 μm to 80 μm. The polymer material of the carrier substrate 31 may include, but is not limited to, polyimide (PI), liquid-crystal polymer (LCP), polyethylene terephthalate (PET), or polyethylene 2,6-naphthalene dicarboxylate (PEN).

[0052] More specifically, the carrier substrate 31 has a C-shaped segment 311 embedded in the layout region 121 and a connection segment 312 embedded in the lower eyelid region 122, and the connection segment 312 is connected between both end edges of the C-shaped segment 311. The electronic component 2 is attached to the connection segment 312, and the wiring 32 is formed in the C-shaped segment 311 and extends to the connection segment 312 to be connected to the electronic component 2. Note that the carrier substrate 31, the wiring 32, and the electronic component 2 each have a local surface that is flush with the outer surface of the covering ring 42 and are bonded to the ring-shaped wearing part 12 (for example, the local surface of the electronic component 2 is bonded to the lower eyelid region 122).

[0053] Furthermore, since the carrier substrate 31 is prone to wrinkles and stress concentration during the pressure molding process, the C-shaped segment 311 is formed with at least one through-hole 3111, and the covering ring 42 is filled in the at least one through-hole 3111. It should be noted that, in a top view of the contact lens 100 (along the central axis L), the area of ​​the at least one through-hole 3111 must occupy 1% to 85% (preferably 10% to 40%) of the area surrounded by the outer contour of the C-shaped segment 311. This effectively reduces the occurrence of wrinkles and stress concentration in the carrier substrate 31, and, in combination with the free-form surface 12a, further improves the oxygen permeability of the contact lens 100.

[0054] In addition, the carrier substrate 31 may have a plurality of radial cuts 313 formed from its outer edge toward the central axis L, which makes it easier for the carrier substrate 31 to form the formed curvature and further reduces the occurrence of wrinkles and stress concentration on the carrier substrate 31. The covering ring 42 is filled with the plurality of radial cuts 313, and in this embodiment, the plurality of radial cuts 313 are respectively formed at the boundary portions of the C-shaped segment 311 and the connecting segment 312, but the present invention is not limited thereto.

[0055] Furthermore, in a top view of the contact lens 100, the area of ​​the at least one through hole 3111 occupies 1% to 75% of the area of ​​the ring-shaped wearing part 12. In this embodiment, the number of the at least one through hole 3111 formed in the C-shaped segment 311 is described as plural, but the present invention is not limited thereto. For example, in other embodiments not shown in the drawings, the C-shaped segment 311 of the carrier substrate 31 may not have any through hole 3111 formed therein.

[0056] In this embodiment, the wiring 32 is surrounded to form at least one closed circuit, and the plurality of through holes 3111 of the C-shaped segment 311 are located within the at least one closed circuit of the wiring 32. It should be noted that in this embodiment, the number of the at least one closed circuit is described as a plurality, and the plurality of through holes 3111 are respectively located within the plurality of closed circuits of the wiring 32, but the present invention is not limited thereto.

[0057] Each of the through holes 3111 has a curved shape, and the width of any one of the through holes 3111 gradually increases from both ends toward the center (for example, in this embodiment, the through holes 3111 have a roughly crescent moon shape). More specifically, any one of the through holes 3111 has an inner hole edge 3112 and an outer hole edge 3113, and both ends of the inner hole edge 3112 are connected to both ends of the outer hole edge 3113, respectively, thereby constituting both ends of at least one of the through holes 3111.

[0058] The inner hole edge 3112 and the outer hole edge 3113 are both arc-shaped, the radius of the inner hole edge 3112 is smaller than the radius of the outer hole edge 3113, and the centers of the inner hole edge 3112 and the outer hole edge 3113 are respectively located on two different planes perpendicular to the central axis L. That is, in this embodiment, each through hole 3111 is arranged along the molding curvature of the carrier substrate 31 and is not planar.

[0059] In order to more clearly define the distribution of the plurality of through holes 3111, the central axis L is defined as the origin in a top view of the contact lens 100, and X-axis and Y-axis are defined from the origin, intersecting the origin and perpendicular to each other, thereby dividing the contact lens 100 into a first quadrant Q1, a second quadrant Q2, a third quadrant Q3, and a fourth quadrant Q4 in the counterclockwise direction.

[0060] In a top view of the contact lens 100, the lower eyelid region 122 is located in the third quadrant Q3 and the fourth quadrant Q4, the Y axis is approximately the center line of the lower eyelid region 122, and the lower eyelid region 122 corresponds to a central angle σ122 of the origin, and the value thereof is preferably in the range of 30 degrees to 180 degrees. Furthermore, the value of the central angle σ122 may be determined according to design requirements, and the present invention is not limited thereto.

[0061] Furthermore, when viewed from the top of the contact lens 100, the multiple through holes 3111 are distributed in the first quadrant Q1, the second quadrant Q2, the third quadrant Q3, and the fourth quadrant Q4, and the area difference between any two of the multiple locations of the multiple through holes 3111 distributed in the first quadrant Q1, the second quadrant Q2, the third quadrant Q3, and the fourth quadrant Q4 does not exceed 50%.

[0062] More specifically, when viewed from the top of the contact lens 100, any one of the through holes 3111 may span at least two quadrants (for example, any one of the through holes 3111 may be located in the first quadrant Q1 and the fourth quadrant Q4, or in the second quadrant Q2 and the third quadrant Q3), and any one of the through holes 3111 may be mirror-symmetric with respect to the X-axis, although the present invention is not limited thereto.

[0063] The plurality of through holes 3111 include at least one first through hole 3111a and at least one second through hole 3111b. In this embodiment, the number of the at least one first through hole 3111a and the number of the at least one second through hole 3111b are described as plural, but the present invention is not limited to this. Note that the plurality of first through holes 3111a are located inside the plurality of second through holes 3111b, respectively. In other words, the radius of each of the second through holes 3111b is different (e.g., larger) than the radius of any one of the first through holes 3111a.

[0064] In this embodiment, each of the first through holes 3111a has an arc shape, its center is located on the central axis L, and the first through holes 3111a are arranged at intervals from one another. Also, each of the second through holes 3111b has an arc shape, its center is located on the central axis L, and the second through holes 3111b are arranged at intervals from one another.

[0065] Furthermore, any one of the first through holes 3111a is located within the range of the central angle of the corresponding second through hole 3111b, and the gap between any two adjacent first through holes 3111a is located in the same radial direction of the contact lens 100 as the gap between any two adjacent second through holes 3111b.

[0066] It should be further explained that the contact lens 100 can be used in combination with various devices in this embodiment. For example, in another embodiment (not shown) of the present invention, the contact lens 100 can be wirelessly connected to any wearable device worn by the user (e.g., a reader attached to glasses or a reader worn around the neck). The wearable device (or reader) can employ a common wireless transmission technology, such as RFID, using a bandwidth of 13.56 MHz or 860-960 MHz, or other technologies such as wireless inductive power supply and signal transmission, to power, sense, or provide signal feedback to the contact lens 100, thereby realizing intelligent monitoring (e.g., collecting and notifying intraocular pressure values ​​throughout the day), intelligent treatment (e.g., controlled release of dry eye medication), AR services (e.g., image projection), and other intelligent applications.

[0067] [Second embodiment] Please refer to the second embodiment of the present invention shown in Figures 9 to 11. This embodiment is similar to the first embodiment described above, so the commonalities between the two embodiments will not be repeated. We will briefly describe the differences between this embodiment and the first embodiment described above.

[0068] In this embodiment, each of the through holes 3111 is elongated and has a shape of approximately equal width, and the carrier substrate 31 has multiple radial cuts 313 formed from its outer edge toward the central axis L that are embedded in the preform 4.

[0069] More specifically, in a top view of the contact lens 100, the area of ​​the plurality of through holes 3111 distributed in the first quadrant Q1 and the second quadrant Q2 can be larger than the area of ​​the plurality of through holes 3111 distributed in the third quadrant Q3 and the fourth quadrant Q4. Furthermore, the area of ​​the plurality of through holes 3111 needs to occupy 1% to 85% (preferably 10% to 40%) of the area enclosed by the outer contour of the C-shaped segment 311.

[0070] Furthermore, the plurality of through holes 3111 include a plurality of first through holes 3111a and a plurality of second through holes 3111b. The plurality of first through holes 3111a are respectively positioned inside the plurality of second through holes 3111b. That is, the radius of each of the second through holes 3111b is different (e.g., larger) than the radius of any one of the first through holes 3111a.

[0071] In this embodiment, each of the first through holes 3111a has an arc shape, its center is located on the central axis L, and the first through holes 3111a are arranged at intervals from one another. Also, each of the second through holes 3111b has an arc shape, its center is located on the central axis L, and the second through holes 3111b are arranged at intervals from one another.

[0072] [Third embodiment] Please refer to the third embodiment of the present invention shown in Figures 12 to 17. This embodiment is similar to the first and second embodiments described above, so the commonalities between the above-described embodiments will not be repeated. The differences between this embodiment and the first and second embodiments will be roughly described below.

[0073] In this embodiment, the preform 4 does not need to form the inner optical layer 41 described in the first embodiment. That is, the preform 4 corresponds to the covering ring 42 described in the first embodiment. More specifically, in this embodiment, the preform 4 is ring-shaped and surrounds the outside of the optical portion 11, and the center of the preform 4 is located on the central axis L. The preform 4 and the lens body 1 are connected without any gap to form a bonding interface 43, which is disposed at a distance from the rear surface 1b and the front surface 1a, respectively.

[0074] Furthermore, the electronic component 2 and / or the wiring structure 3 are embedded in the preform 4, and local surfaces of the electronic component 2 and / or the wiring structure 3 are aligned with the outer surface of the preform 4 and bonded to the ring-shaped mounting part 12. Furthermore, the wiring structure 3 may include the carrier substrate 31 and the wiring 32 as shown in Figures 12 to 14, or may include only the wiring 32 as shown in Figures 15 to 17, but is not limited thereto.

[0075] It should be further explained that in this embodiment, the structure of the carrier substrate 31 is based on the examples shown in Figures 12 to 14, but the present invention is not limited thereto. For example, in other embodiments of the present invention (not shown), the structure of the carrier substrate 31 can be modified according to design requirements in the same manner as the structure shown in Figures 9 to 11 of Embodiment 2.

[0076] [Technical Effects of the Embodiments of the Present Invention] In summary, the contact lenses disclosed in the embodiments of the present invention have the preform made of the eye-friendly material, and the wiring structure (and the electronic components) are embedded and positioned in the preform in advance, so that the wiring structure (and the electronic components) can be completely embedded and positioned in the lens body through the preform during the contact lens production process.

[0077] In addition, the contact lenses disclosed in the embodiments of the present invention have a free-form surface formed on the front surface of the lens body, so that the thickness of the layout region does not need to be perfectly matched to the thickness of the lower eyelid region (for example, the thickness distribution of the ring-shaped wearing part gradually increases toward the lower eyelid region), thereby realizing a thinner layout region, effectively improving the oxygen permeability of the layout region, and reducing the foreign body sensation when wearing the contact lens.

[0078] Furthermore, the contact lens disclosed in the embodiment of the present invention effectively reduces wrinkles and stress concentration on the carrier substrate by forming at least one through hole occupying a specific area in the C-shaped segment of the lens body (for example, the area of ​​at least one through hole should occupy 1% to 85% of the area surrounded by the outer contour of the C-shaped segment). Furthermore, the contact lens disclosed in the embodiment of the present invention can further improve the oxygen permeability of the contact lens by combining the arrangement of the at least one through hole with a free-form surface.

[0079] The above disclosure is merely a preferred embodiment of the present invention, and does not limit the scope of the claims of the present invention. Therefore, all equivalent technical modifications made based on the contents of the specification and accompanying drawings of the present invention shall be included in the scope of the claims of the present invention. [Explanation of symbols]

[0080] 100 contact lenses 200 eyes 201 Lower eyelid 202 Upper eyelid 1 Lens body 1a Front 1b Rear 10 Built-in Modules 11 Optics Department 11a Visible surface 111 Front optical layer 112 Posterior optical layer 12 Ring-shaped fitting part 12a Free-form surface 121 Layout Area 122 Lower eyelid area 2. Electronic Components 3 Wiring structure 31 Carrier board 311 C-shaped segment 3111 Through hole 3111a First through hole 3111b Second through hole 3112 Inner hole edge 3113 Outer hole edge 312 connection segments 313 Radial cut 32 Wiring 4 Preform 41 Inner optical layer 42 Covering ring 43 Joint interface L center axis Q1 First Quadrant Q2 Second Quadrant Q3 Third Quadrant Q4 Fourth Quadrant σ122 central angle

Claims

1. A contact lens comprising a lens body and a built-in module, the lens body includes an optical portion and a ring-shaped wearing portion surrounding the optical portion, the lens body having a posterior surface and an anterior surface, the posterior surface being adapted to be worn on the user's eye; The embedded module comprises a preform and a wiring structure; The preform is made of an eye-friendly material, the preform is completely embedded in the lens body, and a bonding interface is formed between the preform and the lens body with no gap between them, the bonding interface being spaced apart from the posterior surface and the anterior surface, respectively, and the preform comprises an inner optical layer and a covering ring; the inner optical layer is disposed within the optic, the optic forming an anterior optical layer and a posterior optical layer separated by the inner optical layer and spaced apart from one another; the covering ring extends from an edge of the inner optical layer and is disposed within the ring-shaped donning portion; the wiring structure is embedded in the covering ring, a local surface of the wiring structure is aligned with an outer surface of the covering ring, and is joined to the ring-shaped wearing part; the lens body material and the eye-friendly material from which the preform is made each comprise a hydrogel or a silicone hydrogel; the contact lens includes an electronic component connected to the wiring structure, the electronic component is embedded in the covering ring, a local surface of the electronic component is aligned with an outer surface of the covering ring and bonded to the ring-shaped wearing part, the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring is connected to the electronic component, the carrier substrate includes a C-shaped segment and a connecting segment; At least one through hole is formed in the C-shaped segment, and the covering ring is filled in the at least one through hole; The connecting segment is connected between both end edges of the C-shaped segment, In a top view of the contact lens, the area of ​​the at least one through hole occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment. A contact lens characterized by:

2. A contact lens as described in claim 1, wherein no recesses are formed on the rear surface and the front surface of the lens body.

3. The contact lens of claim 1 , wherein the refractive power of the contact lens is provided cooperatively by the anterior optical layer, the posterior optical layer, and the inner optical layer sandwiched between the anterior and posterior optical layers.

4. The contact lens of claim 1 , wherein the wiring structure includes wiring connected to the electronic component, the wiring not being formed on any carrier substrate.

5. 2. The contact lens according to claim 1, wherein a central axis is defined in the optical portion, and when viewed from the top, the central axis is defined as the origin and the contact lens is divided counterclockwise into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant, and a plurality of portions of at least one through hole are distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, respectively, and the area difference between any two of the portions does not exceed 50%.

6. 2. The contact lens of claim 1, wherein the optical portion defines a central axis, the carrier substrate defines a plurality of radial cuts from an outer edge toward the central axis, the carrier substrate defines a shaped curvature, and the covering ring fills the plurality of radial cuts.

7. 2. The contact lens of claim 1, wherein the posterior surface of the lens body has a predetermined curvature for wearing on the eye, the anterior surface has a visible surface corresponding to the optical portion and a free-form surface corresponding to the ring-shaped wearing portion, the visible surface has a first curvature different from a second curvature of the free-form surface, and the thickness distribution of the ring-shaped wearing portion gradually increases toward the electronic component.

8. 8. The contact lens according to claim 7, wherein the ring-shaped wearing portion has a C-shaped layout area and a lower eyelid area located between both ends of the layout area, the local surface of the electronic component is bonded to the lower eyelid area, and when the contact lens is worn on the eye, a portion of the ring-shaped wearing portion having a maximum thickness corresponds to a lower eyelid of the eye, and a portion of the ring-shaped wearing portion having a minimum thickness corresponds to a upper eyelid of the eye.

9. A contact lens comprising a lens body and a built-in module, the lens body has an optical portion and a ring-shaped wearing portion surrounding the optical portion, the lens body has a rear surface and a front surface located on opposite sides, respectively, and the rear surface is adapted to be worn on the user's eye; The embedded module comprises a preform and a wiring structure; the preform is made of an eye-friendly material, the preform is completely embedded in the ring-shaped wearing portion of the lens body, the preform is ring-shaped and surrounds the outside of the optical portion, the preform and the lens body are connected without any gap to form a bonding interface, and the bonding interface is disposed at intervals from the posterior surface and the anterior surface, respectively; the wiring structure is embedded in the preform, a local surface of the wiring structure is aligned with a surface of the preform, and the wiring structure is joined to the ring-shaped mounting part; the lens body material and the eye-friendly material from which the preform is manufactured each comprise a hydrogel or a silicone hydrogel; the contact lens includes an electronic component connected to the wiring structure, the electronic component is embedded in the preform, a local surface of the electronic component is aligned with an outer surface of the preform, and the electronic component is bonded to the ring-shaped wearing part; the wiring structure includes a carrier substrate and a wiring formed on the carrier substrate, the wiring being connected to the electronic component, the carrier substrate including a C-shaped segment and a connecting segment; At least one through hole is formed in the C-shaped segment, and the preform is filled into the at least one through hole; The connecting segment is connected between both end edges of the C-shaped segment, In a top view of the contact lens, the area of ​​the at least one through-hole occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment. A contact lens characterized by:

10. A contact lens as described in claim 9, wherein no recesses are formed on the rear surface and the front surface of the lens body.

11. The contact lens of claim 9 , wherein the wiring structure includes wiring connected to the electronic component, the wiring not being formed on any carrier substrate.

12. 10. The contact lens according to claim 9, wherein a central axis is defined in the optical zone, and when viewed from the top, the contact lens is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a counterclockwise direction from the central axis defined as an origin, and a plurality of portions of at least one through hole are distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, respectively, and the area difference between any two of the portions does not exceed 50%.

13. 10. The contact lens of claim 9, wherein the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring being connected to the electronic component, the optical portion defining a central axis, the carrier substrate being formed with a plurality of radial cuts from its outer edge toward the central axis, so that the carrier substrate has a shaped curvature, and the preform is filled into the plurality of radial cuts.

14. 10. The contact lens of claim 9, wherein the posterior surface of the lens body has a predetermined curvature for wearing on the eye, the anterior surface has a visible surface corresponding to the optical portion and a free-form surface corresponding to the ring-shaped wearing portion, the visible surface has a first curvature different from a second curvature of the free-form surface, and the thickness distribution of the ring-shaped wearing portion gradually increases toward the electronic component.

15. 15. The contact lens according to claim 14, wherein the ring-shaped wearing portion has a C-shaped layout area and a lower eyelid area located between both ends of the layout area, the local surface of the electronic component is bonded to the lower eyelid area, and when the contact lens is worn on the eye, a portion of the ring-shaped wearing portion having a maximum thickness corresponds to a lower eyelid of the eye, and a portion of the ring-shaped wearing portion having a minimum thickness corresponds to a upper eyelid of the eye.

Images