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 since the wiring structure is planar, it is not easy to completely embed and position the wiring structure in the approximately spherical lens body. Therefore, the inventor believed that the above drawbacks could be improved, and conducted thorough research involving the application of scientific principles, and proposed the present invention, which has a rational design and effectively improves the above drawbacks. Summary of the Invention [Problem to be solved by the invention]

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

[0004] An embodiment of the present invention discloses a contact lens, which comprises a lens body and a built-in module structure. The lens body includes an optical part and a ring-shaped wearing part surrounding the optical part, the lens body has a rear surface and a front surface, and the rear surface is adapted to be worn on the eye of a user. 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 bonding interface is formed between the preform and the lens body by connecting them without any gap, and the bonding interface is respectively spaced from the rear surface and the front surface. The preform comprises an inner optical layer and a covering ring. The inner optical layer is disposed in the optical part, and the optical part is divided by the inner optical layer to form a front optical layer and a rear optical layer spaced from each other. The covering ring extends from an edge of the inner optical layer and is disposed in the ring-shaped wearing part. The wiring structure is embedded in the covering ring, and a local surface of the wiring structure is aligned with an outer surface of the covering ring and bonded to the ring-shaped wearing part.

[0005] Preferably, the lens body material and the eye-friendly material from which the preform is manufactured 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 provided cooperatively 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 the wiring structure, the electronic component being embedded in the covering ring, with a localized surface of the electronic component being flush with an 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, the wiring not being formed on any carrier substrate.

[0009] Preferably, the wiring structure includes a carrier substrate and a 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 the at least one through hole is filled with a coating ring. 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.

[0011] Preferably, the optical portion has a central axis defined therein, and in a top view 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, respectively, and the multiple portions 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 portions does not exceed 50%.

[0012] Preferably, the optical portion defines a central axis, and the carrier substrate defines a plurality of radial cuts from an outer edge of the carrier substrate toward the central axis, such that the carrier substrate defines a shaped curvature. The cladding 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 part and a free-form surface corresponding to the ring-shaped wearing part, 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 part 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, a portion of the ring-shaped wearing part having a maximum thickness corresponds to a lower eyelid of the eye, and a portion of the ring-shaped wearing part having a minimum thickness corresponds to a upper eyelid of the eye.

[0015] The embodiment of the present invention also discloses another contact lens. The contact lens comprises a lens body and a built-in module. The lens body has an optical part and a ring-shaped wearing part surrounding the optical part. The lens body has a rear surface and a front surface, and the rear surface is adapted to be worn on the eye of a user. The built-in module comprises a preform and a wiring structure. The preform is manufactured from an eye-friendly material. The preform is completely embedded in the ring-shaped wearing part of the lens body, the preform is ring-shaped and surrounds the outside of the optical part, and the preform and the lens body are connected without any gaps to form a bonding interface, and the bonding interface is respectively spaced apart from the rear surface and the front 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 part.

[0016] Preferably, the lens body material and the eye-friendly material from which the preform is manufactured 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 the wiring structure, the electronic component being embedded in a covering ring, a local surface of the electronic component being aligned with an 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 components, the wiring not being 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 connection segment. At least one through hole is formed in the C-shaped segment, and a coating ring is filled in the at least one through hole. The connection segment is connected between both ends 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 in a top view 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, respectively, and the multiple portions 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 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 an outer edge of the carrier substrate toward the central axis, such that the carrier substrate has a shaped curvature. The cladding 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 part and a free-form surface corresponding to the ring-shaped wearing part, 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 part 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, a portion of the ring-shaped wearing part having a maximum thickness corresponds to a lower eyelid of the eye, and a portion of the ring-shaped wearing part having a minimum thickness corresponds to a upper eyelid of the eye.

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

[0025] In order to make the features and technical contents of the present invention more clearly understood, the following detailed description of the present invention and the accompanying drawings are provided for the purpose of illustrating the present invention only, and are not intended to limit the scope of the present invention. [Brief description of the drawings]

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

[0027] Hereinafter, the embodiments of the "contact lens" disclosed by the present invention will be described by way of specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the disclosure of this specification. The present invention can be implemented or applied by other different specific embodiments. Each detail in this specification can be modified and changed equivalently based on different perspectives or applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are for simple and schematic illustration only and do not show actual dimensions. In the following embodiments, the technical contents of the present invention will be described in more detail, but the disclosed contents do 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 situation.

[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 called a smart contact lens) is disclosed. The contact lens 100 can be worn on a user's eye 200 (e.g., Figure 3) or implanted in the eye 200 (not shown) depending on design requirements.

[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 a corrective function.

[0031] In this embodiment, the contact lens 100 includes a lens body 1 and a built-in module 10 embedded in the lens body 1. The built-in 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 built-in module 10 may include only the preform 4 and the wiring structure 3, and omit the electronic component 2, depending on design requirements. Hereinafter, each component of the contact lens 100 of this embodiment will be described in order, and the connection relationship between multiple components will be described as appropriate.

[0032] In this embodiment, the lens body 1 is formed by hardening hydrogel or silicone hydrogel, and the above-mentioned hydrogel is, for example, p-HEMA, but is not limited thereto. The lens body 1 includes an optical part 11 and a ring-shaped wearing part 12 surrounding the optical part 11, and the optical part 11 can be configured to have or not have a function of correcting refractive error according to design requirements. It should be noted that the optical part 11 can have components embedded therein according to design requirements (for example, 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 center of the optical portion 11 and the center of the ring-shaped wearing part 12 are both located on the central axis L. The ring-shaped wearing part 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 with no gap therebetween to form a bonding interface 43.

[0034] The preform 4 has an inner optical layer 41 and a cladding ring 42 extending integrally from an edge of the inner optical layer 41, and the thickness of the preform 4 is arranged to be non-uniform, but the present invention is not limited thereto. For example, in other embodiments of the present invention (not shown), the preform 4 can be 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 that are spaced apart from each other. This allows the optical properties (e.g., refractive index) of the contact lens 100 to be 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, thereby making it possible 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 production 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 characteristics (e.g., oxygen permeability) of the eye-friendly material used in the preform 4 are similar to the material characteristics of the lens body 1, but the preform 4 and the lens body 1 may be made of different materials according to 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 disposed 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, the surface of the lens body 1 includes a rear surface 1b and a front surface 1a located on the opposite side thereof. The rear surface 1b and the front surface 1a of the lens body 1 are not formed with any recesses (or holes), and are spaced apart from the bonding interface 43. The rear surface 1b has a predetermined curvature suitable for wearing on the eye 200 of a user. That is, the numerical value of the predetermined curvature is related only to the eye 200.

[0042] Furthermore, the front surface 1a has a visible surface 11a corresponding to the optical part 11 and a free curved surface 12a corresponding to the ring-shaped wearing part 12, and the visible surface 11a has a first curvature related to the optical design required to correct refractive errors. Alternatively, the first curvature of the visible surface 11a can form a zero-power structure together with the rear 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 of the present invention (not shown), the first curvature is approximately equal to the second curvature, and the thicknesses of the ring-shaped wearing part 12 may be approximately equal.

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

[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, thereby effectively improving the oxygen permeability of the layout region 121 and reducing the foreign body sensation when the contact lens 100 is worn.

[0046] In order to further effectively improve the oxygen permeability of the layout region 121 and reduce the foreign body sensation when the contact lens 100 is worn, it is desirable for the contact lens 100 to 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 part where the covering ring 42 is embedded) is located in the area where the electronic component 2 is arranged (for example, the lower eyelid area 122), and the minimum thickness Tmin of the ring-shaped wearing part 12 (the part where the covering ring 42 is embedded) is located in a part of the layout area 121 away from the lower eyelid area 122 (for example, the top of the layout area 121 in FIG. 4). In other words, when the contact lens 100 is worn on the eye 200, the part of the ring-shaped wearing part 12 (where the covering ring 42 is embedded) having the maximum thickness Tmax corresponds to the lower eyelid 201 of the eye 200, and the part of the ring-shaped wearing part 12 (where the covering ring 42 is embedded) 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 lower eyelid 201 and upper eyelid 202 of the user, but the present invention does not limit the relative positional relationship between the thickness of the contact lens 100 and the upper eyelid 201 and lower eyelid 202 of the user to this.

[0048] The wiring structure 3 may be present alone in the preform 4 (not shown) or in combination with the electronic component 2, and may be electrically or physically driven to achieve at least one of a number of functions, such as receiving energy, transmitting wireless signals, digital calculations, sensor monitoring, applying pressure, emitting current, projecting images, optical zoom, 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 wearing part 12. It should be noted that, as shown in FIG. 1 to FIG. 5, the wiring structure 3 in this embodiment includes a carrier substrate 31 and a wiring 32 (e.g., a metal wiring) formed on the carrier substrate 31, and the wiring 32 is connected to the electronic component 2 and electrically coupled, but the present invention is not limited thereto. For example, as shown in FIG. 6 to FIG. 8, the wiring structure 3 includes a wiring 32 connected to the electronic component 2, and the wiring 32 may not be formed on any carrier substrate 31. That is, the built-in module 10 pre-positions the wiring 32 by the preform 4, thereby preventing the wiring 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 molded into a predetermined curved structure through room temperature or high temperature compression of a press molding die, so that the carrier substrate 31 has a molded curvature different from the second curvature, and the molded curvature is preferably close to the predetermined curvature of the rear surface 1b (for example, the molded 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 ends 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 aligned 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, at least one through hole 3111 is formed in the C-shaped segment 311, and the covering ring 42 is filled in the at least one through hole 3111. It should be noted that in the top view of the contact lens 100 (along the central axis L), the area of ​​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 further improves the oxygen permeability of the contact lens 100 in combination with the free-form surface 12a.

[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 facilitates the carrier substrate 31 to form the forming curvature, and further reduces the occurrence of wrinkles and stress concentration on the carrier substrate 31. The covering ring 42 fills the plurality of radial cuts 313, and the plurality of radial cuts 313 are respectively formed at the boundaries between the C-shaped segment 311 and the connecting segment 312 in this embodiment, but the present invention is not limited thereto.

[0055] Further, 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 being plural, but the present invention is not limited thereto. For example, in other embodiments not shown in the drawings of the present invention, 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 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] In addition, 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 center of the inner hole edge 3112 and the center of the outer hole edge 3113 are respectively located on two different planes perpendicular to the central axis L. That is, in this embodiment, each of the through holes 3111 is arranged along the molding curvature of the carrier substrate 31 and is not planar.

[0059] In order to define the distribution of the plurality of through holes 3111 more clearly, the central axis L is defined as the origin, and X-axis and Y-axis are defined from the origin and intersect with the origin, being perpendicular to each other, in the top view of the contact lens 100. This divides 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 the 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, the value of which 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 among 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, the area difference between any two locations does not exceed 50%.

[0062] More specifically, in a top view 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, but the present invention is not limited thereto.

[0063] The plurality of through holes 3111 includes at least one first through hole 3111a and at least one second through hole 3111b, and 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 a plurality in this embodiment, but the present invention is not limited thereto. Note that the plurality of first through holes 3111a are located inside the plurality of second through holes 3111b, respectively. That is, the radius of each of the second through holes 3111b is different (for example, 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 spaced apart 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 spaced apart 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 of the present invention (not shown), 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), and the wearable device (or reader) can adopt a common wireless transmission technology RFID, for example, using a bandwidth of 13.56 MHz or 860-960 MHz, or other technologies such as wireless induction power supply, signal transmission, etc., to supply power, sense, or feedback signals to the contact lens 100, thereby realizing intelligent monitoring (e.g., collection and warning of intraocular pressure values ​​throughout the time period), intelligent treatment (e.g., controlled release of dry eye medicine), 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 common points between the two embodiments will not be described again. The differences between this embodiment and the first embodiment will be roughly described.

[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 a plurality of 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. In addition, the area of ​​the plurality of through holes 3111 needs to occupy 1% to 85% (preferably 10% to 40%) of the area surrounded 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 located inside the plurality of second through holes 3111b, respectively. 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 spaced apart 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 spaced apart 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 common points of the above embodiments will not be described repeatedly. The differences between this embodiment and the first and second embodiments will be roughly described.

[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, the preform 4 is ring-shaped in this embodiment 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 joined 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 example 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 similarly to the structure shown in Figures 9 to 11 of embodiment 2 according to design requirements.

[0076] [Technical Effects of the Embodiments of the Present Invention] In summary, the contact lens disclosed in the embodiment of the present invention has 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 within the lens body through the preform during the contact lens production manufacturing process.

[0077] In addition, the contact lens disclosed in the embodiment of the present invention has 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 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 The 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 eye of a user; The built-in module includes a preform and a wiring structure; the preform is made of an eye-friendly material, the preform is completely embedded in the lens body, a gap-free connection is formed between the preform and the lens body to form a bonding interface, the bonding interface is 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 optical zone, the optical zone defining 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, and a local surface of the wiring structure is aligned with an outer surface of the covering ring and joined to the ring-shaped mounting part. A contact lens characterized by:

2. 2. The contact lens of claim 1, wherein the lens body material and the eye friendly material from which the preform is manufactured each comprise a hydrogel or a silicone hydrogel, and wherein the posterior and anterior surfaces of the lens body are free of any indentations.

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

4. The contact lens of claim 1, further comprising an electronic component connected to the wiring structure, the electronic component being embedded within the covering ring, a local surface of the electronic component being aligned with an outer surface of the covering ring and bonded to the ring-shaped wearing portion.

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

6. The contact lens of claim 4 , wherein the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring being connected to the electronic component.

7. the carrier substrate includes a C-shaped segment and a connecting segment; The C-shaped segment has at least one through hole formed therein, and the at least one through hole is filled with the coating ring; The connecting segment is connected between both ends of the C-shaped segment, The contact lens of claim 6, wherein, in a top view of the contact lens, the area of ​​at least one of the through holes occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment.

8. 8. The contact lens of claim 7, wherein the optical portion has a central axis defined therein, and in the top view of the contact lens, the central axis is defined as an origin and is divided counterclockwise into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, respectively, and a plurality of portions of at least one of the through holes are distributed in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant, respectively, and an area difference between any two of the portions does not exceed 50%.

9. 7. The contact lens of claim 6, wherein the optical portion defines a central axis, and the carrier substrate defines a plurality of radial cuts from an outer edge toward the central axis, such that the carrier substrate defines a molded curvature, and the covering ring fills the plurality of radial cuts.

10. 5. The contact lens of claim 4, 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.

11. The contact lens of claim 10, 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.

12. 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, the rear surface being adapted to be worn on the user's eye, The built-in module includes a preform and a wiring structure; The preform is made of a material that is gentle on the eyes, 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 gaps to form a bonding interface, and the bonding interface is disposed at intervals from the rear surface and the front 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; A contact lens characterized by:

13. 13. The contact lens of claim 12, wherein the lens body material and the eye-friendly material from which the preform is manufactured each comprise hydrogel or silicone hydrogel, and the posterior and anterior surfaces of the lens body are free of any indentations.

14. The contact lens of claim 12, wherein the contact lens includes an electronic component connected to the wiring structure, the electronic component being embedded within the preform, a local surface of the electronic component being aligned with an outer surface of the preform, and bonded to the ring-shaped wearing portion.

15. The contact lens of claim 14 , wherein the wiring structure includes wiring connected to the electronic components, the wiring not being formed on any carrier substrate.

16. The wiring structure includes a carrier substrate and a wiring formed on the carrier substrate, the wiring is connected to the electronic component, and 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 preform is filled into the at least one through hole; The connecting segment is connected between both ends of the C-shaped segment, 15. The contact lens of claim 14, wherein in a top view of the contact lens, the area of ​​at least one said through hole occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment.

17. 17. The contact lens of claim 16, wherein the optical portion has a central axis defined therein, and in the top view of the contact lens, the central axis is defined as an origin and is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a counterclockwise direction, and a plurality of portions of at least one of the through holes are distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, respectively, and an area difference between any two of the portions does not exceed 50%.

18. 15. The contact lens of claim 14, wherein the wiring structure includes a carrier substrate and wiring formed on the carrier substrate, the wiring connected to the electronic component, the optical portion defines a central axis, the carrier substrate is formed with a molding curvature by forming a plurality of radial cuts from its outer edge toward the central axis, and the preform fills the plurality of radial cuts.

19. 15. The contact lens of claim 14, 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.

20. The contact lens of claim 19, 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