Contact lenses

Abstract

The present application discloses a contact lens. The contact lens comprises a lens body, an electronic component and a circuit structure. The lens body comprises an optical part and a ring-shaped wearing part surrounding the optical part, the ring-shaped wearing part has a layout area in C shape and a lower eyelid area between two ends of the layout area. The electronic component is embedded in the lower eyelid area. The circuit structure is embedded in the ring-shaped wearing part. The circuit structure comprises a carrier plate and a circuit formed on the carrier plate and connected to the electronic component. The carrier plate has a C-shaped section embedded in the layout area. The C-shaped section is formed with at least one through hole, the area of which occupies 1% to 85% of the area surrounded by the outer contour of the C-shaped section. Accordingly, by the contact lens through at least one of the through holes, the situation that the carrier plate generates wrinkles or stress concentration is effectively reduced, and the oxygen permeability of the contact lens can be further improved.

Description

TECHNICAL FIELD

[0001] The present invention relates to a contact lens, and in particular, to a smart contact lens. BACKGROUND

[0002] The prior art smart contact lens has a carrier plate for forming a circuit or carrying electronic components. However, the carrier plate is often wrinkled or has stress concentration due to bending during the forming process, thereby affecting the electrical performance of the prior art smart contact lens.

[0003] Therefore, the present inventor believes that the above-mentioned defects can be improved, and after years of research and application of scientific principles, finally proposes the present invention which is reasonably designed and effectively improves the above-mentioned defects. SUMMARY

[0004] The purpose of the embodiments of the present invention is to provide a contact lens which can effectively improve the defects that may occur in the prior art smart contact lens.

[0005] The embodiments of the present invention disclose a contact lens, comprising: a lens body comprising an optical part and a ring-shaped wearing part surrounding the optical part, and the ring-shaped wearing part having a layout area in a C shape and a lower eyelid area between two ends of the layout area; and a circuit structure embedded in the ring-shaped wearing part; wherein the circuit structure comprises: a carrier plate having a C-shaped section embedded in the layout area and a connecting section embedded in the lower eyelid area, and the connecting section being connected between the two end edges of the C-shaped section; and a circuit formed on the carrier plate; wherein the C-shaped section is formed with at least one through hole, and the lens body fills the at least one through hole; in the 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 section.

[0006] Preferably, in the top view of the contact lens, the area of the at least one through hole occupies 1% to 75% of the area of the ring-shaped wearing part.

[0007] Preferably, the circuit surrounds at least one closed loop, and the at least one through hole is located in the at least one closed loop.

[0008] Preferably, the at least one through hole is in a curved shape, and the width of the at least one through hole gradually increases from both ends to the center.

[0009] Preferably, the at least one through hole has an inner hole edge and an outer hole edge, and both ends of the inner hole edge are respectively connected to both ends of the outer hole edge to respectively form both ends of the at least one through hole.

[0010] Preferably, the optical part defines a central axis, and the center of the inner hole edge and the center of the outer hole edge are respectively located on different two planes perpendicular to the central axis.

[0011] Preferably, the optical portion defines a central axis, which, in a top view of the contact lens, defines an origin and sequentially divides a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a counterclockwise direction, the lower eyelid region is located in the third quadrant and the fourth quadrant, and the at least one through hole is distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant.

[0012] Preferably, in a top view of the contact lens, the lower eyelid region corresponds to a central angle of the origin, which is between 30 degrees and 180 degrees.

[0013] Preferably, in a top view of the contact lens, the plurality of portions of the at least one through hole distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant have an area difference of no more than 50% between any two of them.

[0014] Preferably, in a top view of the contact lens, the area of the at least one through hole distributed in the first quadrant and the second quadrant is greater than the area of the at least one through hole distributed in the third quadrant and the fourth quadrant.

[0015] Preferably, the number of the at least one through hole is further limited to a plurality and includes a plurality of first through holes, each first through hole is in the shape of a circular arc with a center located on a central axis defined by the optical portion, and the plurality of first through holes are arranged at intervals from each other.

[0016] Preferably, the lens body has a back surface with a predetermined curvature suitable for fitting on a user's eye, and a front surface opposite to the back surface; wherein the annular fitting portion has a plurality of front positioning grooves recessed from the front surface, and one front positioning groove is arranged between any two adjacent through holes.

[0017] Preferably, the bottom edge of each front positioning groove includes a partial line structure so that the partial line structure is exposed to the outside.

[0018] Preferably, each front positioning groove has a first step surface including a partial line structure to expose the partial line structure, a first gradient surface connected between the front surface and the first step surface, a second step surface with a distance from the front surface greater than that of the first step surface from the front surface, and a second gradient surface connected between the first step surface and the second step surface and located on one side of the line structure.

[0019] Preferably, the line is completely embedded in the lens body.

[0020] Preferably, the plurality of front positioning grooves each has a depth of 50 microns to 100 microns.

[0021] Preferably, the front surface has a viewing surface corresponding to the optical portion and a free-form surface corresponding to the annular wearing portion; wherein the viewing surface has a first curvature different from a second curvature of the free-form surface, such that the thickness distribution of the annular wearing portion presents a gradually increasing trend toward the lower eyelid region.

[0022] Preferably, the plurality of through holes includes a plurality of second through holes, each of the second through holes is in the shape of a circular arc with a center located on the central axis, and the plurality of second through holes are arranged at intervals from each other; wherein the radius of each of the second through holes is different from the radius of any of the first through holes.

[0023] Preferably, in a top view of the contact lens, the interval between any two adjacent first through holes is not on the same radial line of the contact lens as the interval between any two adjacent second through holes.

[0024] Preferably, the optical portion defines a central axis, and the carrier plate is formed with a plurality of radial notches from the outer edge thereof toward the central axis; wherein the contact lens includes an electronic element embedded in the lower eyelid region, and the circuit is electrically coupled to the electronic element.

[0025] In summary, the contact lens disclosed in the embodiments of the present application effectively reduces the occurrence of wrinkles or stress concentration of the carrier plate and further improves the oxygen permeability of the contact lens by forming at least one through hole occupying a specific area on the C-shaped segment of the lens body.

[0026] For a more complete understanding of the features and technical content of the present application, please refer to the following detailed description of the present application and the accompanying drawings, but these descriptions and drawings are only used to illustrate the present application, and do not limit the scope of protection of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a perspective view of the contact lens of the first embodiment of the present application.

[0028] Figure 2 It is a top view of the contact lens of the first embodiment of the present application. Figure 1

[0029] It is a perspective view of the contact lens of the first embodiment of the present application. Figure 3 Figure 1 It is a plan view of the contact lens of the first embodiment of the present application worn on the eye of a user.

[0030] Figure 4 It is a sectional view of the contact lens of the first embodiment of the present application along the section line IV-IV. Figure 1

[0031] Figure 5 It is an enlarged view of the region V of the contact lens of the first embodiment of the present application. Figure 4 It is an enlarged view of the region V of the contact lens of the first embodiment of the present application.​​

[0032] Figure 6 Fig. 2 is a cross-sectional view along section line II-II of Fig. 1. Figure 1 Fig. 3 is an enlarged view of area III of Fig. 2.

[0033] Figure 7 Fig. 4 is a cross-sectional view along section line IV-IV of Fig. 1. Figure 6 Fig. 5 is an enlarged view of area V of Fig. 4.

[0034] Figure 8 Fig. 6 is a cross-sectional view along section line VI-VI of Fig. 1. Figure 1 Fig. 7 is an enlarged view of area VII of Fig. 6.

[0035] Figure 9 Fig. 8 is a cross-sectional view along section line VIII-VIII of Fig. 1. Figure 8 Fig. 9 is an enlarged view of area IX of Fig. 8.

[0036] Figure 10 Fig. 10 is a top view of a contact lens according to an embodiment of the present application. Fig. 11 is a perspective view of a contact lens according to an embodiment of the present application.

[0037] Fig. 12 is a cross-sectional view along section line XI-XI of Fig. 1. Figure 11 Fig. 13 is a top view of a contact lens according to an embodiment of the present application. Figure 10 Fig. 14 is a cross-sectional view along section line XIV-XIV of Fig. 1. Fig. 15 is a perspective view of a contact lens according to an embodiment of the present application.

[0038] Fig. 16 is a cross-sectional view along section line XV-XV of Fig. 1. Figure 12 Fig. 17 is a top view of a contact lens according to an embodiment of the present application. Fig. 18 is a cross-sectional view along section line XVI-XVI of Fig. 1.

[0039] Fig. 19 is a perspective view of a contact lens according to an embodiment of the present application. Figure 13 Fig. 20 is a top view of a contact lens according to an embodiment of the present application. Figure 12 Fig. 21 is a cross-sectional view along section line XVII-XVII of Fig. 1. Fig. 22 is a perspective view of a contact lens according to an embodiment of the present application.

[0040] Fig. 23 is a cross-sectional view along section line XVIII-XVIII of Fig. 1. Figure 14 Fig. 24 is a top view of a contact lens according to an embodiment of the present application. Figure 12 Fig. 25 is a cross-sectional view along section line XIX-XIX of Fig. 1. Fig. 26 is a perspective view of a contact lens according to an embodiment of the present application.

[0041] Fig. 27 is a cross-sectional view along section line XX-XX of Fig. 1. Figure 15 Fig. 28 is a top view of a contact lens according to an embodiment of the present application. Figure 12 Fig. 29 is a cross-sectional view along section line XXI-XXI of Fig. 1. Fig. 30 is a perspective view of a contact lens according to an embodiment of the present application.

[0042] Fig. 31 is a cross-sectional view along section line XXII-XXII of Fig. 1. Figure 16 Fig. 32 is a top view of a contact lens according to an embodiment of the present application. Figure 15 Fig. 33 is an enlarged view of area XXIII of Fig. 32. DETAILED DESCRIPTION

[0043] The following embodiments are illustrative of the present application and are not meant to limit the scope of the application. The present application can be carried out by a variety of different embodiments without departing from the spirit of the application. The following detailed description is presented in order to describe the embodiments and should not be construed as limiting the scope of the application. The drawings are not to scale and are presented for purposes of simplicity and clarity. The embodiments are presented in order to illustrate the present application and should not be construed as limiting the scope of the application.

[0044] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, 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 should, as appropriate, include any combination of one or more of the related listed items.

[0045] [Example 1]

[0046] Please see Figures 1 to 9 As shown, this is an embodiment of the present invention. Figures 1 to 4 As shown, this embodiment discloses a contact lens 100 (or smart contact lens). The contact lens 100 can be worn on the user's eye 200 according to design requirements (e.g.: Figure 3 Alternatively, it can be implanted within the eye 200 (not shown in the figure).

[0047] Furthermore, in this embodiment, the contact lens 100 may have the function of correcting refractive errors, and the refractive errors include hyperopia, myopia, astigmatism, presbyopia, or astigmatism-presbyopia; or, the contact lens 100 may be a makeup lens without corrective function.

[0048] In this embodiment, the contact lens 100 includes a lens body 1, an electronic component 2 embedded in the lens body 1, and a circuit structure 3 embedded in the lens body 1 and electrically coupled to the electronic component 2. However, the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the contact lens 100 may, depending on design requirements, include only the lens body 1 and the circuit structure 3, omitting the electronic component 2. The various components of the contact lens 100 of this embodiment will be described in sequence below, and the connection relationships between the multiple components will be introduced as appropriate.

[0049] The lens body 1 is formed by curing a hydrogel or a silicone hydrogel in the present embodiment, and the hydrogel is, for example, p-HEMA, but is not limited thereto. The lens body 1 includes an optical portion 11 and an annular wearing portion 12 surrounding the optical portion 11, and the optical portion 11 can be configured to have or not have a function of correcting the refractive error according to design requirements. It should be noted that the optical portion 11 does not embed any components in the present embodiment, but can embed components in the optical portion 11 according to design requirements (for example, the contact lens 100 is applied to a digital zoom device), which is not limited by the above description of the present embodiment.

[0050] Further, the optical portion 11 defines a central axis L, and the center of the optical portion 11 and the center of the annular wearing portion 12 are located on the central axis L. The annular wearing portion 12 is connected to the outer edge of the optical portion 11 and is substantially annular, and the electronic element 2 and the circuit structure 3 are embedded in the inside of the annular wearing portion 12. In addition, the production method of embedding the electronic element 2 and the circuit structure 3 in the annular wearing portion 12 (or the manufacturing method of the contact lens 100) can be adjusted according to design requirements, which is not limited by the present application.

[0051] In more detail, the annular wearing portion 12 has a layout area 121 in the shape of a C and a lower eyelid area 122 between two ends of the layout area 121, and the electronic element 2 is embedded in the lower eyelid area 122. When the contact lens 100 is worn on the eye 200, the position of the lower eyelid area 122 and the electronic element 2 corresponds to the inside of the lower eyelid 201 of the eye 200 which is less sensitive, so as to effectively reduce the foreign body sensation of the user.

[0052] In another aspect, as shown in Figures 2 to 5 The surface of the lens body 1 includes a rear surface 1b and a front surface 1a opposite to the rear surface 1b. The rear surface 1b has a predetermined curvature suitable for being worn on the eye 200 of the user; that is, the value of the predetermined curvature is only related to the eye 200.

[0053] Further, the front surface 1a has a visible surface 11a corresponding to the optical portion 11 and a free-form surface 12a corresponding to the annular wearing portion 12, and the visible surface 11a has a first curvature related to the optical design required to correct the refractive error; or the first curvature of the visible surface 11a can also form a structure without power together with the rear surface 1b.

[0054] Further, the first curvature of the visible surface 11a is different from a second curvature of the free-form surface 12a, so that the thickness distribution of the annular wearing portion 12 gradually increases toward the electronic element 2 (e.g., the lower eyelid region 122), but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the first curvature can be substantially equal to the second curvature, and the thickness of the annular wearing portion 12 is substantially equal.

[0055] In another aspect, the contact lens 100 can be embedded with at least one electronic element 2 at any position of the annular wearing portion 12 according to design requirements; for example, in other embodiments not shown in the present application, the annular wearing portion 12 is embedded with at least one electronic element 2 at each of the horizontal sides thereof, so that the thickness of the annular wearing portion 12 is the thickest in the horizontal direction of the eye, and gradually thins toward the plumb direction of the eye; accordingly, this arrangement can accommodate at least two sets of electronic elements 2, and can reduce the foreign body sensation of the contact lens 100.

[0056] As described above, the contact lens 100 disclosed in the embodiments of the present application is formed with the free-form surface 12a on the front surface 1a of the lens body 1, so that the thickness of the layout region 121 does not need to completely conform to the thickness of the lower eyelid region 122, thereby achieving the thinness of the layout region 121, and effectively improving the oxygen permeability of the layout region 121 and reducing the foreign body sensation of the contact lens 100.

[0057] In order to more effectively improve the oxygen permeability of the layout region 121 and reduce the foreign body sensation of the contact lens 100, the contact lens 100 is preferably adjusted by the second curvature of the free-form surface 12a to have at least one of a plurality of features in the following two aspects, but the present application is not limited thereto.

[0058] The maximum thickness Tmax of the annular wearing portion 12 (the portion embedded with components) falls in the region where the electronic element 2 is located (e.g., the lower eyelid region 122), and the minimum thickness Tmin of the annular wearing portion 12 (the portion embedded with components) falls in a portion of the layout region 121 away from the lower eyelid region 122 (e.g., the horizontal direction of the eye). Figure 4The layout region 121 is located on the lower eyelid 201 of the eye 200. In other words, when the contact lens 100 is worn on the eye 200, the portion of the ring-shaped wearing part 12 (in which the components are embedded) having the maximum thickness Tmax is located in the lower eyelid 201 of the eye 200, and the portion of the ring-shaped wearing part 12 (in which the components are embedded) having the minimum thickness Tmin is located in 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 and the upper eyelid of the user, but the present application is not limited in this regard.

[0059] In addition, the circuit structure 3 is spaced apart from the back surface 1b by a distance D122 in the lower eyelid region 122, which is greater than the distance D121 between the circuit structure 3 and the back surface 1b in the layout region 121.

[0060] The circuit structure 3 can exist alone in the lens body 1 (not shown) or in combination with the electronic components 2, and can be driven by power supply or physically driven to achieve at least one of the functions of energy reception, wireless signal transmission, digital calculation, sensing monitoring, pressure application, current release, image projection, optical zooming, and power storage, but the present application is not limited in this regard.

[0061] The circuit structure 3 in this embodiment includes a carrier plate 31 and a circuit 32 (e.g., a metal circuit) formed on the carrier plate 31, and the circuit 32 is connected to the electronic components 2 and electrically coupled to each other. In this embodiment, the carrier plate 31 can be shaped into a predetermined curved structure by cold pressing or hot pressing of a pressing mold, so that the carrier plate 31 has a shaped curvature different from the second curvature, and the shaped curvature is preferably similar to the predetermined curvature of the back surface 1b (e.g., the shaped curvature is 100% to 110% of the predetermined curvature), but the present application is not limited in this regard.

[0062] The carrier plate 31 is a flexible printed circuit board (FPCB) having a thickness of 10-300 micrometers in the present embodiment, and preferably has a thickness of 40-80 micrometers. The high-molecular material of the carrier plate 31 can include polyimide (PI), liquid-crystal polymer (LCP), polyethyleneterephthalate (PET), or poly(ethylene 2,6-naphthalenedicarboxylate) (PEN), but is not limited thereto.

[0063] In more detail, the carrier plate 31 has a C-shaped segment 311 embedded in the layout region 121 and a connecting segment 312 embedded in the lower eyelid region 122, and the connecting segment 312 is connected between two end edges of the C-shaped segment 311. The electronic component 2 can be mounted on the connecting segment 312, and the circuit 32 is formed on the C-shaped segment 311 and extends to the connecting segment 312 to be connected to the electronic component 2.

[0064] Further, in order to reduce the wrinkling or stress concentration of the carrier plate 31 during press forming, the C-shaped segment 311 is formed with at least one through hole 3111, and the spectacle body 1 fills at least one of the through holes 3111. It should be noted that, in the plan view of the contact lens 100 (along the central axis L), the area of at least one of the through holes 3111 needs to be 1-85% (preferably 10-40%) of the area surrounded by the outer contour of the C-shaped segment 311, so as to effectively reduce the wrinkling or stress concentration of the carrier plate 31 and further improve the oxygen permeability of the contact lens 100 by matching the free-form surface 12a.

[0065] In addition, the carrier plate 31 can also be formed with a plurality of radial notches 313 from the outer edge thereof toward the central axis L, so as to further reduce the wrinkling or stress concentration of the carrier plate 31. In the present embodiment, a plurality of radial notches 313 are formed at the junctions of the C-shaped segment 311 and the connecting segment 312, but the present application is not limited thereto.

[0066] Furthermore, in the plan view of the contact lens 100, the area of at least one of the through holes 3111 occupies 1% to 75% of the area of the annular fitting portion 12, and the number of the at least one through hole 3111 formed in the C-shaped section 311 is plural in the present embodiment. That is, the plate body not formed with any through hole is different from the carrier plate 31 in the present embodiment.

[0067] In the present embodiment, the line 32 forms at least one closed loop, and the plurality of through holes 3111 of the C-shaped section 311 are located within the at least one closed loop of the line 32. It is to be noted that the number of the at least one closed loop is plural in the present embodiment, and the plurality of through holes 3111 are respectively located within the plurality of closed loops of the line 32, but the present application is not limited thereto.

[0068] In the present embodiment, each of the through holes 3111 is curved, and the width of any one of the through holes 3111 gradually increases from both ends thereof toward the center thereof (for example, the through hole 3111 is substantially crescent-shaped in the present embodiment). In more detail, 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 respectively connected to both ends of the outer hole edge 3113 to respectively form the both ends of the at least one through hole 3111.

[0069] In the present embodiment, each of the through holes 3111 is curved, and the width of any one of the through holes 3111 gradually increases from both ends thereof toward the center thereof (for example, the through hole 3111 is substantially crescent-shaped in the present embodiment). In more detail, 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 respectively connected to both ends of the outer hole edge 3113 to respectively form the both ends of the at least one through hole 3111.

[0070] In order to more clearly define the distribution of the plurality of through holes 3111, in the plan view of the contact lens 100, the center axis L is defined as an origin, and an X-axis and a Y-axis intersecting at the origin and being perpendicular to each other are defined with respect to the origin, so as to sequentially divide a first quadrant Q1, a second quadrant Q2, a third quadrant Q3, and a fourth quadrant Q4 in a counterclockwise direction.

[0071] 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, and the Y-axis is approximately the midline of the lower eyelid region 122, while the lower eyelid region 122 corresponds to a central angle σ122 of the origin, which is preferably between 30 degrees and 180 degrees, and the value of the central angle σ122 can be determined according to design requirements, and the application is not limited thereto.

[0072] Furthermore, in the top view of the contact lens 100, a plurality of 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 plurality of through holes 3111 distributed in the first quadrant Q1, the second quadrant Q2, the third quadrant Q3 and the fourth quadrant Q4 is not more than 50%.

[0073] In more detail, in the top view of the contact lens 100, any of the through holes 3111 spans at least two quadrants (for example, any of the through holes 3111 is located in the first quadrant Q1 and the fourth quadrant Q4, or is located in the second quadrant Q2 and the third quadrant Q3), and any of the through holes 3111 can be mirror-symmetric to the X-axis, but the application is not limited thereto.

[0074] 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 at least one first through hole 3111a and the number of at least one second through hole 3111b are each illustrated as a plurality in this embodiment, but the application is not limited thereto. Among them, a plurality of first through holes 3111a are located inside a plurality of second through holes 3111b; that is, the radius of each second through hole 3111b is different from (for example, greater than) the radius of any first through hole 3111a.

[0075] In this embodiment, each first through hole 3111a is in the shape of an arc with a center located on the center axis L, and a plurality of first through holes 3111a are arranged at intervals from each other, each second through hole 3111b is in the shape of an arc with a center located on the center axis L, and a plurality of second through holes 3111b are arranged at intervals from each other.

[0076] Furthermore, any one of the first through holes 3111a is located within a central angle range of the corresponding second through hole 3111b, and a spacing between any two adjacent first through holes 3111a is located on the same radius of the contact lens 100 as a spacing between any two adjacent second through holes 3111b.

[0077] As shown in Figure 2 , Figure 4 and Figure 6 , the annular wearing part 12 has a plurality of positioning grooves 123 formed by being recessed from at least one of the front surface 1a and the back surface 1b toward the circuit structure 3, and a bottom edge of each of the positioning grooves 123 includes a portion of the circuit structure 3 so that the portion of the circuit structure 3 is exposed, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the annular wearing part 12 can also be formed with only one positioning groove 123 or without any positioning groove 123 according to design requirements.

[0078] More specifically, when the circuit structure 3 (and the electronic element 2) is arranged in a forming mold (not shown in the figure), a plurality of positioning structures of the forming mold abut against the portion of the circuit structure 3 to accurately position the circuit structure 3 (and the electronic element 2) to a predetermined position, thereby facilitating pouring and solidification of the lens body 1 to form a coating of the circuit structure 3 (and the electronic element 2) in the forming mold. After the contact lens 100 is taken out of the forming mold, the part of the lens body 1 previously coated on the positioning structures forms a plurality of positioning grooves 123.

[0079] As described above, the contact lens 100 disclosed in the embodiments of the present application has a plurality of positioning grooves 123 left when planning the configuration of the annular wearing part 12, so as to facilitate high-precision positioning of the circuit structure 3 (and the electronic element 2) during the production and manufacturing process of the contact lens 100, thereby enabling the contact lens 100 to have high consistency when mass-produced.

[0080] The plurality of positioning grooves 123 can be controlled within a certain proportion range (for example, the total area surrounded by the openings of the plurality of positioning grooves 123 is not greater than 1% of the total surface area of the front surface 1a and the back surface 1b), so as to avoid excessive influence on the strength of the contact lens 100. Furthermore, the circuit structure 3 also exposes the portion thereof outside the corresponding positioning grooves 123 to improve the heat dissipation effect.

[0081] Further, as shown in Figures 4 to 9As shown, the plurality of positioning grooves 123 can be distinguished as a plurality of front positioning grooves 123a and rear positioning grooves 123b in the embodiment, and the plurality of front positioning grooves 123a are formed by recessing from the front surface 1a (e.g., the free-form surface 12a) toward the circuit structure 3, and the rear positioning grooves 123b are formed by recessing from the rear surface 1b toward the circuit structure 3, but the present application is not limited thereto.

[0082] The bottom edge of each of the rear positioning grooves 123b and / or the bottom edge of each of the front positioning grooves 123a can include a portion of the circuit structure 3, so that the portion of the circuit structure 3 is exposed. The depth of each of the plurality of front positioning grooves 123a is between 50 microns (μm) and 100 microns, and the depth of each of the plurality of rear positioning grooves 123b is between 50 microns and 100 microns. That is, the contact lens 100 in the embodiment can accurately embed the circuit structure 3 at a predetermined depth of the lens body 1 by planning the depth of the front positioning grooves 123a and the rear positioning grooves 123b. In addition, the above-mentioned predetermined depth can be determined according to design requirements, and the present application is not limited thereto.

[0083] The plurality of rear positioning grooves 123b in the embodiment preferably do not correspond to the same part of the circuit structure 3 as any of the front positioning grooves 123a, so as to form a multi-point positioning effect by being arranged in a staggered manner, thereby facilitating high-precision positioning of the circuit structure 3 and effectively avoiding the situation that the contact lens 100 has insufficient local strength. In addition, in the top view of the contact lens 100, the rear positioning grooves 123b and the front positioning grooves 123a can each be formed along the radial direction of the lens body 1 and across the circuit structure 3, but the present application is not limited thereto.

[0084] In more detail, the front positioning grooves 123a in the embodiment are generally in a stepped configuration, and the front positioning grooves 123a have a first step surface 1231, a first gradient surface 1232 connected between the front surface 1a (e.g., the free-form surface 12a) and the first step surface 1231, a second step surface 1233 spaced from the first step surface 1231, and a second gradient surface 1234 connected between the first step surface 1231 and the second step surface 1233.

[0085] The first step surface 1231 is located at the bottom edge of the front positioning groove 123a, and the first step surface 1231 includes the partial circuit structure 3 to expose the partial circuit structure 3. The distance between the second step surface 1233 and the front surface 1a (e.g., the free surface 12a) is greater than the distance between the first step surface 1231 and the front surface 1a (e.g., the free surface 12a). In addition, the second step surface 1234 is located at one side of the circuit structure 3 (or the electronic component 2), and the circuit 32 is completely embedded in the glasses body 1; that is, the circuit structure 3 can be exposed outside the positioning groove 123 only by the partial carrier board 31.

[0086] It should be further noted that the specific structure and shape of the front positioning groove 123a can be adjusted according to design requirements, and the front positioning groove 123a in the present embodiment also adopts various different structures (e.g., Figure 4 and Figure 8 ), so as to facilitate high-precision positioning of the circuit structure 3.

[0087] Further, the depth of any front positioning groove 123a located in the lower eyelid area 122 is greater than the depth of any front positioning groove 123a located in the layout area 121. In addition, the bottom edge (or the first step surface 1231) of one of the front positioning grooves 123a located in the lower eyelid area 122 includes a partial electronic component 2 to expose the partial electronic component 2, so as to facilitate high-precision positioning of the electronic component 2.

[0088] It should be further noted that the contact lens 100 in the present embodiment can be further used in various devices. For example, in other embodiments not shown in the present application, the contact lens 100 can be wirelessly connected to any wearable device (e.g., a reader mounted on glasses or a neck-mounted reader) worn on the user, and the above wearable device (or reader) can use common wireless transmission technology RFID, such as 13.56 MHz or 860-960 MHz bandwidth, or other wireless induction power, signal transmission, etc. technology, to power, sense, or feedback signals for the contact lens 100, thereby achieving its intelligent monitoring (e.g., full-time intraocular pressure value collection and warning), intelligent treatment (e.g., dry eye drug release control), AR service (e.g., image projection), or other intelligent applications.

[0089] [Embodiment Two]

[0090] Please refer to Figure 10 and Figure 11As shown, it is the second embodiment of the present application. Since this embodiment is similar to the above-mentioned first embodiment, the same parts of the two embodiments will not be described again, and the differences of this embodiment compared with the above-mentioned first embodiment are generally described as follows:

[0091] In this embodiment, at least one of the front positioning grooves 123a can be zigzag-shaped and span multiple through holes 3111, so that the local part of each through hole 3111 is exposed to the outside. Among the top view of the contact lens 100, the zigzag-shaped front positioning groove 123a is formed along the radial direction of the lens body 1 and spans the circuit structure 3; the position of the local part of each through hole 3111 corresponds to the distance between the first step surface 1231 and the second step surface 1233 of the zigzag-shaped front positioning groove 123a.

[0092] More specifically, among the zigzag-shaped front positioning groove 123a, the first step surface 1231 and the second step surface 1233 each include multiple sections separated from each other, and the first step surface 1231 includes the local part of the circuit structure 3 to expose the local part of the circuit structure 3, the distance between the second step surface 1233 and the front surface 1a is greater than the distance between the first step surface 1231 and the front surface 1a, and the first gradient surface 1232 is connected to the free curved surface 12a and the second step surface 1233.

[0093] In summary, the contact lens 100 disclosed in the embodiments of the present application forms the front positioning groove 123a zigzag-shaped and spanning multiple through holes 3111 through the annular wearing part 12, so as to further improve the high-precision positioning effect of the circuit structure 3.

[0094] [Embodiment Three]

[0095] Please refer to Figures 12 to 16 As shown, it is the third embodiment of the present application. Since this embodiment is similar to the above-mentioned first and second embodiments, the same parts of the two embodiments will not be described again, and the differences of this embodiment compared with the above-mentioned first and second embodiments are generally described as follows:

[0096] In this embodiment, each of the through holes 3111 is long and generally has an equal width, and multiple front positioning grooves 123a are formed in the layout area 121, and the carrier plate 31 forms multiple radial notches 313 from its outer edge towards the center axis L. In addition, the structure of the front positioning groove 123a and its connection relationship with the circuit structure 3 are similar to those of the Figure 1 and Figure 9 The front positioning groove 123a presented here will not be described again.

[0097] More specifically, in the plan 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 greater than the area of the plurality of through holes 3111 distributed in the third quadrant Q3 and the fourth quadrant Q4, and the area of the plurality of through holes 3111 needs to account for 1% to 85% (preferably 10% to 40%) of the area enclosed by the outer contour of the C-shaped section 311.

[0098] Furthermore, one front positioning groove 123a can be arranged between two adjacent through holes 3111, and the plurality of through holes 3111 includes a plurality of first through holes 3111a and a plurality of second through holes 3111b. Among them, the plurality of first through holes 3111a are respectively located inside the plurality of second through holes 3111b; that is, the radius of each second through hole 3111b is different from (such as greater than) the radius of any first through hole 3111a.

[0099] In the present embodiment, each first through hole 3111a is in the shape of a circular arc with its center located on the central axis L, and the plurality of first through holes 3111a are arranged at intervals from each other, each second through hole 3111b is in the shape of a circular arc with its center located on the central axis L, and the plurality of second through holes 3111b are arranged at intervals from each other.

[0100] Further, in the plan view of the contact lens 100, the interval between any two adjacent first through holes 3111a is provided with a front positioning groove 123a, and the interval (such as not provided with the front positioning groove 123a) between any two adjacent second through holes 3111b is not located on the same radial direction of the contact lens 100, so as to facilitate the high-precision positioning of the circuit structure 3.

[0101] [Technical effects of the embodiment of the present application]

[0102] In summary, the contact lens disclosed in the embodiment of the present application forms the free-form surface on the front surface of the lens body, so that the thickness of the layout area does not need to completely conform to the thickness of the lower eyelid area (such as the thickness distribution of the annular wearing part gradually increases towards the lower eyelid area), thereby realizing the thinning of the layout area, effectively improving the oxygen permeability of the layout area, and reducing the foreign body sensation of the contact lens.

[0103] Furthermore, the contact lenses disclosed in the embodiments of the present application have at least one through hole formed in the C-shaped segment of the lens body and occupying a certain area (for example, the area of the at least one through hole needs to be 1% to 85% of the area surrounded by the outer contour of the C-shaped segment), so as to effectively reduce the occurrence of wrinkles or stress concentration of the carrier plate. In addition, the contact lenses disclosed in the embodiments of the present application can further improve the oxygen permeability of the contact lenses by the configuration of the at least one through hole in combination with the free-form surface.

[0104] In addition, the contact lenses disclosed in the embodiments of the present application have a plurality of positioning grooves left when planning the configuration of the annular wearing part, so as to facilitate the high-precision positioning of the circuit structure (and the electronic elements) in the production process of the contact lenses, so that the contact lenses have high consistency in mass production.

[0105] Further, the plurality of positioning grooves can be controlled within a certain proportion range (for example, the total area surrounded by the openings of the plurality of positioning grooves is not greater than 1% of the total surface area of the front surface and the back surface), so as to avoid excessive influence on the strength of the contact lenses. Furthermore, the circuit structure is partially exposed outside the corresponding positioning grooves, so as to improve the heat dissipation effect.

[0106] The above disclosure is only the preferred feasible embodiments of the present application, and does not limit the patent scope of the present application, so any equivalent technical changes made by applying the content of the specification and drawings of the present application are included in the patent scope of the present application.

Claims

1. A contact lens, characterized in that, The contact lenses include: A pair of eyeglasses includes an optical part and an annular wearing part surrounding the optical part, wherein the annular wearing part has a C-shaped layout area and a lower eyelid area located between the two ends of the layout area; and A circuit structure is embedded within the annular wearing part; wherein, the circuit structure comprises: A carrier plate having a C-shaped segment embedded in the layout area and a connecting segment embedded in the lower eyelid area, wherein the connecting segment is connected between the two end edges of the C-shaped segment; and A circuit is formed on the carrier plate; The C-shaped segment has at least one through hole, and the eyeglass body fills at least one through hole; in the top view of the contact lens, the area of ​​at least one through hole occupies 1% to 85% of the area enclosed by the outer contour of the C-shaped segment.

2. The contact lens according to claim 1, characterized in that, In the top view of the contact lens, the area of ​​at least one of the through holes occupies 1% to 75% of the area of ​​the annular wearing portion.

3. The contact lens according to claim 1, characterized in that, The circuit surrounds and forms at least one closed loop, and at least one of the through holes is located within at least one of the closed loops.

4. The contact lens according to claim 1, characterized in that, At least one of the through holes is curved, and the width of at least one of the through holes gradually increases from its two ends toward the center.

5. The contact lens according to claim 4, characterized in that, At least one of the through holes has an inner edge and an outer edge, and the two ends of the inner edge are respectively connected to the two ends of the outer edge to respectively form the two ends of at least one of the through holes.

6. The contact lens according to claim 5, characterized in that, The optical part defines a central axis, and the center of the inner aperture and the center of the outer aperture are located on two different planes perpendicular to the central axis.

7. The contact lens according to claim 1, characterized in that, The optical component defines a central axis. In the top view of the contact lens, the central axis is defined as an origin and is sequentially divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant in a counterclockwise direction. The lower eyelid area is located in the third quadrant and the fourth quadrant, and at least one of the through holes is distributed in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant.

8. The contact lens according to claim 7, characterized in that, In the top view of the contact lens, the lower eyelid area corresponds to a central angle of the origin, which is between 30 degrees and 180 degrees.

9. The contact lens according to claim 7, characterized in that, In the top view of the contact lens, the area difference between any two of the multiple locations of at least one through hole in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant is no greater than 50%.

10. The contact lens according to claim 7, characterized in that, In the top view of the contact lens, the area of ​​at least one through hole distributed in the first and second quadrants is larger than the area of ​​at least one through hole distributed in the third and fourth quadrants.

11. The contact lens according to claim 1, characterized in that, The number of at least one through hole is further limited to a plurality of first through holes, each of the first through holes being arc-shaped with its center located on a central axis defined by the optical part, and the plurality of first through holes being spaced apart from each other.

12. The contact lens according to claim 11, characterized in that, The eyeglasses body has: A rear surface having a preset curvature suitable for wearing on a user's eyes; and A front surface, located on the opposite side of the rear surface; The annular wearing part has a plurality of front positioning grooves formed by recesses from the front surface, and a front positioning groove is disposed between two adjacent through holes.

13. The contact lens according to claim 12, characterized in that, The bottom edge of each of the front positioning slots includes a portion of the circuit structure, such that the portion of the circuit structure is exposed.

14. The contact lens according to claim 13, characterized in that, Each of the aforementioned front positioning slots has: A first-order surface, which includes the portion of the circuit structure to expose the portion of the circuit structure; A first trapezoidal surface, connecting the front surface and the first step surface; A second-order surface, the distance between which is greater than the distance between the first-order surface and the front surface; and A second step surface is connected between the first step surface and the second step surface and is located on one side of the circuit structure.

15. The contact lens according to claim 14, characterized in that, The wiring is completely embedded within the eyeglasses body.

16. The contact lens according to claim 12, characterized in that, The depth of each of the plurality of front positioning grooves is between 50 micrometers and 100 micrometers.

17. The contact lens according to claim 12, characterized in that, The front surface has a visible surface corresponding to the optical part and a freeform surface corresponding to the annular wearing part; wherein, the visible surface has a first curvature, which is different from a second curvature of the freeform surface, so that the thickness distribution of the annular wearing part gradually increases toward the lower eyelid area.

18. The contact lens according to claim 11, characterized in that, The plurality of through holes include a plurality of second through holes, each second through hole being arc-shaped with its center located on the central axis, and the plurality of second through holes being spaced apart from each other; wherein the radius of each second through hole is different from the radius of any of the first through holes.

19. The contact lens according to claim 18, characterized in that, In the top view of the contact lens, the interval between any two adjacent first through holes is not located on the same radial direction as the interval between any two adjacent second through holes.

20. The contact lens according to claim 1, characterized in that, The optical section defines a central axis, and the carrier plate has a plurality of radial cuts formed from its outer edge toward the central axis; wherein the contact lens includes an electronic component embedded within the lower eyelid area, and the circuitry is connected to the electronic component and electrically coupled to each other.

Images