US20230400709A1 - Contact lens - Google Patents
Contact lens Download PDFInfo
- Publication number
- US20230400709A1 US20230400709A1 US18/207,214 US202318207214A US2023400709A1 US 20230400709 A1 US20230400709 A1 US 20230400709A1 US 202318207214 A US202318207214 A US 202318207214A US 2023400709 A1 US2023400709 A1 US 2023400709A1
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- United States
- Prior art keywords
- contact lens
- quadrant
- eye
- thru
- electronic component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 15
- 210000000744 eyelid Anatomy 0.000 claims description 26
- 239000000017 hydrogel Substances 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 208000014733 refractive error Diseases 0.000 description 3
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 201000010041 presbyopia Diseases 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 208000003556 Dry Eye Syndromes Diseases 0.000 description 1
- 206010013774 Dry eye Diseases 0.000 description 1
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004410 intraocular pressure Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/10—Electronic devices other than hearing aids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
- G02B1/043—Contact lenses
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/047—Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B29D11/00807—Producing lenses combined with electronics, e.g. chips
- B29D11/00817—Producing electro-active lenses or lenses with energy receptors, e.g. batteries or antennas
- B29D11/00826—Producing electro-active lenses or lenses with energy receptors, e.g. batteries or antennas with energy receptors for wireless energy transmission
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/046—Contact lenses having an iris pattern
Definitions
- the present disclosure relates to a contact lens, and more particularly to a smart contact lens.
- a conventional smart contact lens has a lens body and a circuit structure embedded in the lens body.
- the circuit structure has a flat shape and the lens body has a substantially spherical shape, the circuit structure is difficult to be embedded and positioned in the lens body.
- the present disclosure provides a contact lens to effectively improve on the issues associated with conventional smart contact lenses.
- a contact lens which includes a lens body and an embedded module.
- the lens body includes an optical portion and an annular wearing portion that surrounds the optical portion.
- the lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye.
- the embedded module includes a pre-mold body and a circuit structure.
- the pre-mold body is made of an eye-friendly material.
- the pre-mold body is entirely embedded in the lens body, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface.
- the pre-mold body includes an inner optical layer and an enclosing ring.
- the inner optical layer is embedded in the optical portion so as to divide the optical portion into a front optical layer and a rear optical layer that is spaced apart from the front optical layer.
- the enclosing ring extends from a peripheral edge of the inner optical layer and embedded in the annular wearing portion.
- the circuit structure is embedded in the enclosing ring, and a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
- a contact lens which includes a lens body and an embedded module.
- the lens body includes an optical portion and an annular wearing portion that surrounds the optical portion.
- the lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye.
- the embedded module includes a pre-mold body and a circuit structure.
- the pre-mold body is made of an eye-friendly material.
- the pre-mold body is entirely embedded in the annular wearing portion of the lens body, the pre-mold body is ring-shaped and surrounds the optical portion, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface.
- the circuit structure embedded in the enclosing ring, and a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
- the contact lens is designed to have the pre-mold body being made of the eye-friendly material for pre-enclosing and pre-positioning the circuit structure and the electronic component therein, so that the circuit structure and the electronic component in the manufacturing process of the contact lens can be positioned and entirely embedded in the lens body through the pre-mold body.
- FIG. 1 is a schematic perspective view of a contact lens according to a first embodiment of the present disclosure
- FIG. 2 is a schematic top view of FIG. 1 ;
- FIG. 3 is a schematic planar view showing the contact lens worn on a user's eye according to a first embodiment of the present disclosure
- FIG. 4 is a schematic cross-sectional view taken along line IV-IV of FIG. 1 ;
- FIG. 5 is a schematic cross-sectional view taken along line V-V of FIG. 1 ;
- FIG. 6 is a schematic perspective view of the contact lens in another configuration according to the first embodiment of the present disclosure.
- FIG. 7 is a schematic top view of FIG. 6 ;
- FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII of FIG. 6 ;
- FIG. 9 is a schematic perspective view of the contact lens according to a second embodiment of the present disclosure.
- FIG. 10 is a schematic top view of FIG. 9 ;
- FIG. 11 is a schematic cross-sectional view taken along line XI-XI of FIG. 9 ;
- FIG. 12 is a schematic perspective view of the contact lens according to a third embodiment of the present disclosure.
- FIG. 13 is a schematic top view of FIG. 12 ;
- FIG. 14 is a schematic cross-sectional view taken along line XIV-XIV of FIG. 12 ;
- FIG. 15 is a schematic perspective view of the contact lens in another configuration according to the third embodiment of the present disclosure.
- FIG. 16 is a schematic top view of FIG. 15 ;
- FIG. 17 is a schematic cross-sectional view taken along line XVII-XVII of FIG. 15 .
- Numbering terms such as “first,” “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.
- the present embodiment provides a contact lens 100 that can be referred to as a smart contact lens.
- the contact lens 100 can be worn on an eye 200 of a user (as shown in FIG. 3 ) or can be embedded in the eye 300 (not shown in the drawings) according to design requirements.
- the contact lens 100 in the present embodiment can have a correcting function for a refractive error that includes hyperopia, myopia, astigmatism, presbyopia, or astigmatism-presbyopia; or, the contact lens 100 can be a makeup lens without the correcting function.
- the contact lens 100 in the present embodiment includes a lens body 1 and an embedded module 10 that is embedded in the lens body 1 .
- the embedded module 10 includes a pre-mold body 4 , an electronic component 2 embedded in the pre-mold body 4 , and a circuit structure 3 that is embedded in the pre-mold body 4 and that is electrically coupled to the electronic component 2 , but the present disclosure is not limited thereto.
- the embedded module 10 can include only the pre-mold body 4 and the circuit structure 3 , and be provided without the electronic component 2 .
- the following description describes the structural and connection relationship of each component of the contact lens 100 .
- the lens body 100 in the present embodiment is formed by solidifying a hydrogel (e.g., p-HEMA) or a silicone hydrogel, but the present disclosure is not limited thereto.
- the lens body 1 includes an optical portion 11 and an annular wearing portion 12 that surrounds the optical portion 11 .
- the optical portion 11 can be formed with or without the correcting function for the refractive error according to design requirements. It should be noted that the optical portion 11 can be formed to have at least one component embedded therein according to design requirements (e.g., when the contact lens 100 is applied to a digital zoom device).
- the optical portion 11 defines a central axis L, and a center of the optical portion 11 and a center of the annular wearing portion 12 are located on the central axis L.
- the annular wearing portion 12 is connected to an outer edge of the optical portion 11 and is substantially in a circular ring shape.
- the pre-mold body 4 is entirely embedded in the lens body 1 , and the pre-mold body 4 and the lens body 1 are gaplessly connected to each other so as to jointly form a connection interface 43 .
- the pre-mold body 4 has an inner optical layer 41 and an enclosing ring 42 that extends integrally from a peripheral edge of the inner optical layer 41 .
- a thickness of the pre-mold body 4 in the present embodiment is not uniform, but the present disclosure is not limited thereto.
- the thickness of the pre-mold body 4 can be substantially uniform.
- the inner optical layer 41 is embedded in the optical portion 11 so as to divide the optical portion 11 into a front optical layer 111 and a rear optical layer 112 that is spaced apart from the front optical layer 111 . Accordingly, 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 can cooperate to jointly provide an optical property (e.g., a diopter) of the contact lens 100 , thereby meeting a wider range of requirements.
- an optical property e.g., a diopter
- the enclosing ring 42 is embedded in the annular wearing portion 12 , and the electronic component 2 and the circuit structure 3 are embedded in the enclosing ring 42 .
- a production manner relevant to the electronic component 2 and the circuit structure 3 embedded in the enclosing ring 42 (or a manufacturing method of the embedded module 10 ) can be adjusted or changed according to design requirements, but the present disclosure is not limited thereto.
- the pre-mold body 4 is made of an eye-friendly material that can be a hydrogel (e.g., p-HEMA) or a silicone hydrogel.
- the eye-friendly material can allow the pre-mold body 4 to preferably have properties (e.g., an oxygen permeability) that is similar or substantially identical to properties of the lens body 1 , and the pre-mold body 4 and the lens body 1 can be made of different materials, but the present disclosure is not limited by the present embodiment.
- the contact lens 100 is designed to have the pre-mold body 4 being made of the eye-friendly material for pre-enclosing and pre-positioning the circuit structure 3 and the electronic component 2 therein, so that the circuit structure 3 and the electronic component 2 in the manufacturing process of the contact lens 100 can be positioned and entirely embedded in the lens body 1 through the pre-mold body 4 .
- the forming mold abuts against a partial surface of the circuit structure 3 to precisely position the circuit structure 3 and the electronic component 2 to a predetermined position, such that a hydrogel or a silicone hydrogel is injected into the forming mold to encapsulate the circuit structure 3 and the electronic component, 2 and is solidified to form the pre-mold body 4 .
- the annular wearing portion 12 has a layout region 121 being C-shaped and a lower eyelid region 122 that is arranged between two ends of the layout region 121 .
- the electronic component 2 is arranged in the lower eyelid region 122 of the annular wearing portion 12 .
- the lower eyelid region 122 and the electronic component 2 are arranged inside of a lower eyelid 201 of the eye 200 that is less sensitive than another portion of the eye 200 , thereby effectively reducing a foreign body sensation (FBS) of the user.
- FBS foreign body sensation
- (surfaces of) the lens body 1 includes a rear surface 1 b and a front surface 1 a that is arranged opposite to the rear surface 1 b .
- the rear surface 1 b and the front surface 1 a of the lens body 1 have no slot (or no hole), and are respectively spaced apart from the connection interface 43 .
- the rear surface 1 b has a predetermined curvature only relevant to the eye 200 for being worn on (or smoothly attached to) the eye 200 .
- the front surface 1 a has a viewable surface 11 a corresponding in position to the optical portion 11 and a free curved surface 12 a that corresponds in position to the annular wearing portion 12 .
- the viewable surface 11 a has a first curvature relevant to an optical design for correcting the refractive error; or, the first curvature of the viewable surface 11 a and the rear surface 1 b can jointly form a structure with no diopter.
- the first curvature of the viewable surface 11 a is different from a second curvature of the free curved surface 12 a , and a thickness of the annular wearing portion 12 gradually increases in a direction toward the electronic component 2 (or the lower eyelid region 122 ), but the present disclosure is not limited thereto.
- the first curvature can be substantially equal to the second curvature, and the thickness of the annular wearing portion 12 is substantially uniform.
- any position of the annular wearing portion 12 of the contact lens 100 can be provided to have at least one of the electronic component 2 embedded therein according to design requirements.
- two opposite sides of the annular wearing portion 12 in a horizontal direction of the eye 200 can each be provided to have at least one of the electronic component 2 embedded therein through the pre-mold body 4 , so that the annular wearing portion 12 has a largest thickness in the horizontal direction and becomes gradually thinner in a vertical direction of the eye 200 .
- the above arrangement of the contact lens 100 can enable the contact lens 100 to receive at least two of the electronic components 2 and to reduce the FBS of the user.
- the contact lens 100 of the present embodiment is provided with the free curved surface 12 a arranged on the front surface 1 a of the lens body 1 , so that a thickness of the layout region 121 does not need to be based completely on (or be equal to) a thickness of the lower eyelid region 122 for thinning the layout region 121 . Accordingly, an oxygen permeability of the layout region 121 can be effectively increased, and the FBS of the contact lens 100 can be reduced (or improved).
- the contact lens 100 preferably has at least one of the technical features disclosed in the following paragraphs by adjusting the second curvature of the free curved surface 12 a , but the present disclosure is not limited thereto.
- the annular wearing portion 12 (e.g., a part of the annular wearing portion 12 corresponding to the enclosing ring 42 ) has a largest thickness Tmax located at a part of the annular wearing portion 12 (e.g., the lower eyelid region 122 ) corresponding in position to the electronic component 2 , and also has a smallest thickness Tmin located at a part of the layout region 121 (e.g., a top part of the layout region 121 shown in FIG. 4 ) away from the lower eyelid region 122 .
- the part of the annular wearing portion 12 of the contact lens 100 having the largest thickness Tmax is located inside of the lower eyelid 201 of the eye 200
- the part of the annular wearing portion 12 of the contact lens 100 having the smallest thickness Tmin is located inside of the upper eyelid 202 of the eye 200 .
- the largest thickness Tmax and the smallest thickness Tmin in the present embodiment respectively correspond in position to the lower eyelid 201 and the upper eyelid 202 of the user, but the relationship between the thickness of the contact lens 100 and the eyelids 201 , 202 of the user in the present disclosure is not limited thereto.
- the circuit structure 3 arranged in the pre-mold body 4 can be independently used (not shown in the drawings) or can be used in cooperation with the electronic component 2 , so that the circuit structure 3 (and the electronic component) can be electrically or physically driven to implement at least one of functions including energy reception, wireless signal transmission, digital calculation, sensing and monitoring, pressure application, current release, image projection, optical zoom, and power storage, but the present disclosure is not limited thereto.
- the circuit structure 3 in the present embodiment includes a carrier 31 and a circuit 32 (e.g., a metallic circuit) formed on the carrier 31 .
- the circuit 32 is connected to the electronic component 2 to be electrically coupled to each other, but the present disclosure is not limited thereto.
- the circuit structure 3 can include a circuit 32 that is connected to the electronic component 2 and that is not formed on any carrier.
- the embedded module 10 of the present embodiment can provide a pre-positioning function for the circuit 32 through the pre-mold body 4 , thereby preventing the circuit 32 in the manufacturing process of the lens body 1 from being moved or being deformed.
- the carrier 31 can be shaped to form a predetermined curved structure by being pressed from a mold at a normal temperature or a high temperature, so that the carrier 31 has a fixed curvature that is different from the second curvature, and the fixed curvature is preferably close to the predetermined curvature of the rear surface 1 b (e.g., the fixed curvature is 100% to 110% of the predetermined curvature), but the present disclosure is not limited thereto.
- the carrier 31 in the present embodiment is a flexible printed circuit board (FPCB) having a thickness within a range from 10 ⁇ m to 300 ⁇ m. Moreover, the thickness of the carrier 31 is preferably within a range from 40 ⁇ m to 80 ⁇ m, and polymer materials of the carrier 31 can include polyimide (PI), liquid-crystal polymer (LCP), polyethylene terephthalate (PET), or poly(ethylene 2,6-naphthalene dicarboxylate) (PEN), but the present disclosure is not limited thereto.
- FPCB flexible printed circuit board
- the carrier 31 has a C-shaped segment 311 embedded in the layout region 121 and a connection segment 312 that is embedded in the lower eyelid region 122 .
- the connection segment 312 is connected in-between two distal ends of the C-shaped segment 311 .
- the electronic component 2 can be assembled to the connection segment 312 , and the circuit 32 is formed on the C-shaped segment 311 and extends to the connection segment 312 for being electrically coupled to the electronic component 2 .
- Each of the carrier 31 , the circuit 32 , and the electronic component 2 can have a partial surface that is flush with the outer surface of the enclosing ring 42 and that is connected to the annular wearing portion 12 (e.g., the partial surface of the electronic component 2 is connected to the lower eyelid region 122 ).
- the C-shaped segment 311 has at least one thru-hole 3111 that is fully filled with the enclosing ring 42 .
- an area of the at least one thru-hole 3111 is 1% to 85% (e.g., preferably 10% to 40%) of an area surrounded by an outer contour of the C-shaped segment 311 , thereby effectively reducing generation of the wrinkles or the stress concentration on the carrier 31 , and further increasing the oxygen permeability of the contact lens 100 by being cooperated with the free curved surface 12 a.
- the carrier 31 can have a plurality of radial notches 313 recessed from an outer edge thereof toward the central axis L so as to allow the carrier 31 to have a fixed curvature, thereby further reducing the generation of wrinkles or the stress concentration on the carrier 31 .
- the radial notches 313 are fully filled with the enclosing ring 42 , and the radial notches 313 are respectively formed on boundaries between the C-shaped segment 311 and the connection segment 312 , but the present disclosure is not limited thereto.
- the area of the at least one thru-hole 3111 is 1% to 75% of an area of the annular wearing portion 12 .
- a quantity of the at least one thru-hole 3111 formed on the C-shaped segment 311 in the present embodiment is more than one, but the present disclosure is not limited thereto.
- the C-shaped segment 311 of the carrier 31 can be formed without any thru-hole 3111 .
- the circuit 32 has at least one enclosed loop, and the thru-holes 3111 of the C-shaped segment 311 are arranged in the at least one enclosed loop of the circuit 32 . It should be noted that a quantity of the at least one enclosed loop in the present embodiment is more than one, and the thru-holes 3111 are respectively arranged in the enclosed loops of the circuit 32 , but the present disclosure is not limited thereto.
- Each of the thru-holes 3111 is curved and has a width that gradually increases from two ends thereof toward a center thereof (e.g., the thru-hole 3111 in the present embodiment is substantially in a crescent shape).
- any one of the thru-holes 3111 has an inner edge 3112 and an outer edge 3113 , and two ends of the inner edge 3112 are respectively connected to two ends of the outer edge 3113 so as to form the two ends of the thru-hole 3111 .
- any one of the inner edge 3112 and the outer edge 3113 is in an arced shape, a radius of the inner edge 3112 is less than a radius of the outer edge 3113 , and a center of the inner edge 3112 and a center of the outer edge 3113 are respectively located on two different planes perpendicular to the central axis L.
- each of the thru-holes 3111 in the present embodiment is arranged along the fixed curvature of the carrier 31 and is not located on a flat plane.
- the central axis L defines an origin point, an X axis, and a Y axis that is perpendicular to the X axis, and the X axis and the Y axis are intersected at the origin point.
- the contact lens 100 is sequentially divided into a first quadrant Q 1 , a second quadrant Q 2 , a third quadrant Q 3 , and a fourth quadrant Q 4 along a counterclockwise direction with respect to the origin point.
- the lower eyelid region 122 is arranged in the third quadrant Q 3 and the fourth quadrant Q 4 , the Y axis is substantially a center line of the lower eyelid region 122 , and a central angle 6122 of the lower eyelid region 122 with respect to the origin point is preferably within a range from 30 degrees to 180 degrees.
- the central angle 6122 can be changed according to design requirements and is not limited by the present embodiment.
- the thru-holes 3111 are arranged in the first quadrant Q 1 , the second quadrant Q 2 , the third quadrant Q 3 , and the fourth quadrant Q 4 (e.g., four parts of the thru-holes 3111 are respectively arranged in the first quadrant Q 1 , the second quadrant Q 2 , the third quadrant Q 3 , and the fourth quadrant Q 4 ), and an area of any one of the four parts of the thru-holes 3111 is 50% to 150% of an area of another one of the four parts of the thru-holes 3111 .
- any one of the thru-holes 3111 is arranged across at least two quadrants (e.g., any one of the thru-holes 3111 is arranged in the first quadrant Q 1 and the fourth quadrant Q 4 , or is arranged in the second quadrant Q 2 and the third quadrant Q 3 ), and any one of the thru-holes 3111 can be mirror symmetrical to the X axis, but the present disclosure is not limited thereto.
- the thru-holes 3111 include at least one first thru-hole 3111 a and at least one second thru-hole 3111 b . Moreover, a quantity of the at least one first thru-hole 3111 a and a quantity of the at least one second thru-hole 3111 b in the present embodiment can each be more than one, but the present disclosure is not limited thereto.
- the first thru-holes 3111 a are located at an inner side of the second thru-holes 3111 b . In other words, a radius of each of the second thru-holes 3111 b is different from (e.g., greater than) a radius of each of the first thru-holes 3111 a.
- each of the first thru-holes 3111 a is in an arced shape having a center of circle located on the central axis L, and the first thru-holes 3111 a are spaced apart from each other.
- Each of the second thru-holes 3111 b is in an arced shape having a center of circle located on the central axis L, and the second thru-holes 3111 b are spaced apart from each other.
- any one of the first thru-holes 3111 a is located in a region defined by a central angle of the corresponding second thru-hole 3111 b , and a partition between any two of the first thru-holes 3111 a adjacent to each other and a partition between any two of the second thru-holes 3111 b adjacent to each other are not arranged in a same radial direction of the contact lens 100 .
- the contact lens 100 in the present embodiment can be further cooperated with any kinds of devices.
- the contact lens 100 can be wirelessly connected to any wearable device (e.g., a glasses-mounted reader or a neck-worn reader) worn on a user, and the wearable device (or the reader) can use a common wireless transmission technology (e.g., the RFID technology in a bandwidth of 13.56 MHz or 860-960 MHz) or other wireless technologies of induction power or signal transmission so as to supply power, sensing function, or signal feedback for the contact lens 100 , thereby providing an intelligent monitoring (e.g., a full-time intraocular pressure value collection and warning), an intelligent treatment (e.g., a dry-eye drug sustained release control), AR services (e.g., an image projection), or other intelligent applications.
- a common wireless transmission technology e.g., the RFID technology in a bandwidth of 13.56 MHz or 860-960 MHz
- an intelligent treatment e.g., a dry-eye drug sustained release control
- a second embodiment of the present disclosure which is similar to the first embodiment of the present disclosure, is provided.
- descriptions of the same components in the first and second embodiments of the present disclosure will be omitted herein, and the following description only discloses different features between the first and second embodiments.
- each of the thru-holes 3111 has an elongated shape substantially having a same width
- the carrier 31 has a plurality of radial notches 313 that are recessed from an outer edge thereof toward the central axis L and that are embedded in the pre-mold body 4 .
- an area of the thru-holes 3111 arranged in the first quadrant Q 1 and the second quadrant Q 2 can be greater than an area of the thru-holes 3111 arranged in the third quadrant Q 3 and the fourth quadrant Q 4 .
- an area of the thru-holes 3111 should be 1% to 85% (e.g., preferably 10% to 40%) of an area surrounded by an outer contour of the C-shaped segment 311 .
- the thru-holes 3111 include a plurality of first thru-holes 3111 a and a plurality of second thru-holes 3111 b .
- the first thru-holes 3111 a are located at an inner side of the second thru-holes 3111 b .
- a radius of each of the second thru-holes 3111 b is different from (e.g., greater than) a radius of each of the first thru-holes 3111 a.
- each of the first thru-holes 3111 a is in an arced shape having a center of circle located on the central axis L, and the first thru-holes 3111 a are spaced apart from each other.
- Each of the second thru-holes 3111 b is in an arced shape having a center of circle located on the central axis L, and the second thru-holes 3111 b are spaced apart from each other.
- a third embodiment of the present disclosure which is similar to the first and second embodiments of the present disclosure, is provided.
- descriptions of the same components in the first to third embodiments of the present disclosure will be omitted herein, and the following description only discloses different features among the first to third embodiments.
- the pre-mold body 4 can be formed without the inner optical layer 41 described in the first embodiment.
- the structure of the pre-mold body 4 provided by the present embodiment is similar or substantially identical to that of the enclosing ring 42 described in the first embodiment.
- the pre-mold body 4 in the present embodiment is ring-shaped and surrounds (an outer side of) the optical portion 11 , and a center of the pre-mold body 4 is located on the central axis L.
- the pre-mold body 4 and the lens body 1 are gaplessly connected to each other so as to jointly form a connection interface 43 that is spaced apart from the front surface 1 a and the rear surface 1 b of the lens body 1 .
- the electronic component 2 and/or the circuit structure 3 are embedded in the pre-mold body 4 , and each of the electronic component 2 and the circuit structure 3 has a partial surface that is flush with an outer surface of the pre-mold body 4 and that is connected to the annular wearing portion 12 .
- the circuit structure 2 can include the carrier 31 and the circuit 32 , which are shown in FIG. 12 to FIG. 14 ; or, the circuit structure 2 can only include the circuit 32 shown in FIG. 15 to FIG. 17 , but the present disclosure is not limited thereto.
- the carrier 31 of the present embodiment is provided as shown in FIG. 12 to FIG. 14 , but the present disclosure is not limited thereto.
- the carrier 31 can be formed in a structure shown in FIG. 9 to FIG. 11 provided by the second embodiment.
- the contact lens is designed to have the pre-mold body being made of the eye-friendly material for pre-enclosing and pre-positioning the circuit structure and the electronic component therein, so that the circuit structure and the electronic component in the manufacturing process of the contact lens can be positioned and entirely embedded in the lens body through the pre-mold body.
- the contact lens of the present disclosure is provided with the free curved surface arranged on the front surface of the lens body, so that a thickness of the layout region does not need to be based completely on (or be equal to) a thickness of the lower eyelid region for thinning the layout region (e.g., the thickness of the annular wearing portion gradually increases in a direction toward the lower eyelid region). Accordingly, an oxygen permeability of the layout region can be effectively increased, and the foreign body sensation of the contact lens can be reduced (or improved).
- the contact lens of the present disclosure is provided with the at least one thru-hole being formed on the C-shaped segment and having a specific area (e.g., the area of the at least one thru-hole 3111 is 1% to 85% of the area surrounded by an outer contour of the C-shaped segment 311 ), thereby effectively reducing the generation of wrinkles or the stress concentration on the carrier, and further increasing the oxygen permeability of the contact lens by being cooperated with the free curved surface.
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Abstract
A contact lens includes a lens body and an embedded module. The lens body has an optical portion and an annular wearing portion that surrounds the optical portion. The embedded module includes a pre-mold body being made of an eye-friendly material and a circuit structure that is embedded in the pre-mold body. The pre-mold body is entirely embedded in the annular wearing portion of the lens body, and the pre-mold body is ring-shaped and surrounds an outside of the optical portion. The pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface therebetween that is spaced apart from a rear surface and a front surface of the lens body. Surfaces of the circuit structure are partially flush with an outer surface of the pre-mold body, and are connected to the annular wearing portion.
Description
- This application claims the benefit of priority to the U.S. Provisional Patent Application Ser. No. 63/351,432 filed on Jun. 12, 2022, which application is incorporated herein by reference in its entirety.
- Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.
- The present disclosure relates to a contact lens, and more particularly to a smart contact lens.
- A conventional smart contact lens has a lens body and a circuit structure embedded in the lens body. However, since the circuit structure has a flat shape and the lens body has a substantially spherical shape, the circuit structure is difficult to be embedded and positioned in the lens body.
- In response to the above-referenced technical inadequacies, the present disclosure provides a contact lens to effectively improve on the issues associated with conventional smart contact lenses.
- In order to solve the above-mentioned problems, one of the technical aspects adopted by the present disclosure is to provide a contact lens, which includes a lens body and an embedded module. The lens body includes an optical portion and an annular wearing portion that surrounds the optical portion. The lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye. The embedded module includes a pre-mold body and a circuit structure. The pre-mold body is made of an eye-friendly material. The pre-mold body is entirely embedded in the lens body, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface. The pre-mold body includes an inner optical layer and an enclosing ring. The inner optical layer is embedded in the optical portion so as to divide the optical portion into a front optical layer and a rear optical layer that is spaced apart from the front optical layer. The enclosing ring extends from a peripheral edge of the inner optical layer and embedded in the annular wearing portion. The circuit structure is embedded in the enclosing ring, and a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
- In order to solve the above-mentioned problems, another one of the technical aspects adopted by the present disclosure is to provide a contact lens, which includes a lens body and an embedded module. The lens body includes an optical portion and an annular wearing portion that surrounds the optical portion. The lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye. The embedded module includes a pre-mold body and a circuit structure. The pre-mold body is made of an eye-friendly material. The pre-mold body is entirely embedded in the annular wearing portion of the lens body, the pre-mold body is ring-shaped and surrounds the optical portion, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface. The circuit structure embedded in the enclosing ring, and a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
- Therefore, in the contact lens provided by the present disclosure, the contact lens is designed to have the pre-mold body being made of the eye-friendly material for pre-enclosing and pre-positioning the circuit structure and the electronic component therein, so that the circuit structure and the electronic component in the manufacturing process of the contact lens can be positioned and entirely embedded in the lens body through the pre-mold body.
- These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure.
- The described embodiments may be better understood by reference to the following description and the accompanying drawings, in which:
-
FIG. 1 is a schematic perspective view of a contact lens according to a first embodiment of the present disclosure; -
FIG. 2 is a schematic top view ofFIG. 1 ; -
FIG. 3 is a schematic planar view showing the contact lens worn on a user's eye according to a first embodiment of the present disclosure; -
FIG. 4 is a schematic cross-sectional view taken along line IV-IV ofFIG. 1 ; -
FIG. 5 is a schematic cross-sectional view taken along line V-V ofFIG. 1 ; -
FIG. 6 is a schematic perspective view of the contact lens in another configuration according to the first embodiment of the present disclosure; -
FIG. 7 is a schematic top view ofFIG. 6 ; -
FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII ofFIG. 6 ; -
FIG. 9 is a schematic perspective view of the contact lens according to a second embodiment of the present disclosure; -
FIG. 10 is a schematic top view ofFIG. 9 ; -
FIG. 11 is a schematic cross-sectional view taken along line XI-XI ofFIG. 9 ; -
FIG. 12 is a schematic perspective view of the contact lens according to a third embodiment of the present disclosure; -
FIG. 13 is a schematic top view ofFIG. 12 ; -
FIG. 14 is a schematic cross-sectional view taken along line XIV-XIV ofFIG. 12 ; -
FIG. 15 is a schematic perspective view of the contact lens in another configuration according to the third embodiment of the present disclosure; -
FIG. 16 is a schematic top view ofFIG. 15 ; and -
FIG. 17 is a schematic cross-sectional view taken along line XVII-XVII ofFIG. 15 . - The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a,” “an” and “the” includes plural reference, and the meaning of “in” includes “in” and “on.” Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.
- The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first,” “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.
- Referring to
FIG. 1 toFIG. 8 , a first embodiment of the present disclosure is provided. As shown inFIG. 1 toFIG. 5 , the present embodiment provides acontact lens 100 that can be referred to as a smart contact lens. Thecontact lens 100 can be worn on aneye 200 of a user (as shown inFIG. 3 ) or can be embedded in the eye 300 (not shown in the drawings) according to design requirements. - Moreover, the
contact lens 100 in the present embodiment can have a correcting function for a refractive error that includes hyperopia, myopia, astigmatism, presbyopia, or astigmatism-presbyopia; or, thecontact lens 100 can be a makeup lens without the correcting function. - The
contact lens 100 in the present embodiment includes alens body 1 and an embeddedmodule 10 that is embedded in thelens body 1. The embeddedmodule 10 includes apre-mold body 4, anelectronic component 2 embedded in thepre-mold body 4, and acircuit structure 3 that is embedded in thepre-mold body 4 and that is electrically coupled to theelectronic component 2, but the present disclosure is not limited thereto. For example, in other embodiments of the present disclosure not shown in the drawings, according to design requirements, the embeddedmodule 10 can include only thepre-mold body 4 and thecircuit structure 3, and be provided without theelectronic component 2. The following description describes the structural and connection relationship of each component of thecontact lens 100. - The
lens body 100 in the present embodiment is formed by solidifying a hydrogel (e.g., p-HEMA) or a silicone hydrogel, but the present disclosure is not limited thereto. Thelens body 1 includes anoptical portion 11 and an annular wearingportion 12 that surrounds theoptical portion 11. Theoptical portion 11 can be formed with or without the correcting function for the refractive error according to design requirements. It should be noted that theoptical portion 11 can be formed to have at least one component embedded therein according to design requirements (e.g., when thecontact lens 100 is applied to a digital zoom device). - Moreover, the
optical portion 11 defines a central axis L, and a center of theoptical portion 11 and a center of the annular wearingportion 12 are located on the central axis L. The annular wearingportion 12 is connected to an outer edge of theoptical portion 11 and is substantially in a circular ring shape. Specifically, thepre-mold body 4 is entirely embedded in thelens body 1, and thepre-mold body 4 and thelens body 1 are gaplessly connected to each other so as to jointly form aconnection interface 43. - The
pre-mold body 4 has an inneroptical layer 41 and an enclosingring 42 that extends integrally from a peripheral edge of the inneroptical layer 41. Moreover, a thickness of thepre-mold body 4 in the present embodiment is not uniform, but the present disclosure is not limited thereto. For example, in other embodiments of the present disclosure not shown in the drawings, the thickness of thepre-mold body 4 can be substantially uniform. - The inner
optical layer 41 is embedded in theoptical portion 11 so as to divide theoptical portion 11 into a frontoptical layer 111 and a rearoptical layer 112 that is spaced apart from the frontoptical layer 111. Accordingly, the frontoptical layer 111, the rearoptical layer 112, and the inneroptical layer 41 sandwiched between the frontoptical layer 111 and the rearoptical layer 112 can cooperate to jointly provide an optical property (e.g., a diopter) of thecontact lens 100, thereby meeting a wider range of requirements. - Moreover, the enclosing
ring 42 is embedded in the annular wearingportion 12, and theelectronic component 2 and thecircuit structure 3 are embedded in the enclosingring 42. In addition, a production manner relevant to theelectronic component 2 and thecircuit structure 3 embedded in the enclosing ring 42 (or a manufacturing method of the embedded module 10) can be adjusted or changed according to design requirements, but the present disclosure is not limited thereto. - In addition, the
pre-mold body 4 is made of an eye-friendly material that can be a hydrogel (e.g., p-HEMA) or a silicone hydrogel. The eye-friendly material can allow thepre-mold body 4 to preferably have properties (e.g., an oxygen permeability) that is similar or substantially identical to properties of thelens body 1, and thepre-mold body 4 and thelens body 1 can be made of different materials, but the present disclosure is not limited by the present embodiment. - In summary, in the
contact lens 100 provided in the present embodiment, thecontact lens 100 is designed to have thepre-mold body 4 being made of the eye-friendly material for pre-enclosing and pre-positioning thecircuit structure 3 and theelectronic component 2 therein, so that thecircuit structure 3 and theelectronic component 2 in the manufacturing process of thecontact lens 100 can be positioned and entirely embedded in thelens body 1 through thepre-mold body 4. - Specifically, when the
circuit structure 3 and theelectronic component 2 are disposed in a forming mold (not shown in the drawings), the forming mold abuts against a partial surface of thecircuit structure 3 to precisely position thecircuit structure 3 and theelectronic component 2 to a predetermined position, such that a hydrogel or a silicone hydrogel is injected into the forming mold to encapsulate thecircuit structure 3 and the electronic component, 2 and is solidified to form thepre-mold body 4. - Specifically, the annular wearing
portion 12 has alayout region 121 being C-shaped and alower eyelid region 122 that is arranged between two ends of thelayout region 121. Theelectronic component 2 is arranged in thelower eyelid region 122 of the annular wearingportion 12. When thecontact lens 100 is worn on theeye 200, thelower eyelid region 122 and theelectronic component 2 are arranged inside of alower eyelid 201 of theeye 200 that is less sensitive than another portion of theeye 200, thereby effectively reducing a foreign body sensation (FBS) of the user. - In other words, as shown in
FIG. 2 toFIG. 5 , (surfaces of) thelens body 1 includes arear surface 1 b and a front surface 1 a that is arranged opposite to therear surface 1 b. Therear surface 1 b and the front surface 1 a of thelens body 1 have no slot (or no hole), and are respectively spaced apart from theconnection interface 43. Therear surface 1 b has a predetermined curvature only relevant to theeye 200 for being worn on (or smoothly attached to) theeye 200. - Moreover, the front surface 1 a has a
viewable surface 11 a corresponding in position to theoptical portion 11 and a freecurved surface 12 a that corresponds in position to the annular wearingportion 12. Theviewable surface 11 a has a first curvature relevant to an optical design for correcting the refractive error; or, the first curvature of theviewable surface 11 a and therear surface 1 b can jointly form a structure with no diopter. - Specifically, the first curvature of the
viewable surface 11 a is different from a second curvature of the freecurved surface 12 a, and a thickness of the annular wearingportion 12 gradually increases in a direction toward the electronic component 2 (or the lower eyelid region 122), but the present disclosure is not limited thereto. For example, in other embodiments of the present disclosure not shown in the drawings, the first curvature can be substantially equal to the second curvature, and the thickness of the annular wearingportion 12 is substantially uniform. - In other words, through the
pre-mold body 4, any position of the annular wearingportion 12 of thecontact lens 100 can be provided to have at least one of theelectronic component 2 embedded therein according to design requirements. For example, in other embodiments of the present disclosure not shown in the drawings, two opposite sides of the annular wearingportion 12 in a horizontal direction of theeye 200 can each be provided to have at least one of theelectronic component 2 embedded therein through thepre-mold body 4, so that the annular wearingportion 12 has a largest thickness in the horizontal direction and becomes gradually thinner in a vertical direction of theeye 200. Accordingly, the above arrangement of thecontact lens 100 can enable thecontact lens 100 to receive at least two of theelectronic components 2 and to reduce the FBS of the user. - In summary, the
contact lens 100 of the present embodiment is provided with the freecurved surface 12 a arranged on the front surface 1 a of thelens body 1, so that a thickness of thelayout region 121 does not need to be based completely on (or be equal to) a thickness of thelower eyelid region 122 for thinning thelayout region 121. Accordingly, an oxygen permeability of thelayout region 121 can be effectively increased, and the FBS of thecontact lens 100 can be reduced (or improved). - In order to further increase the oxygen permeability of the
layout region 121 and further reduce the FBS of thecontact lens 100, thecontact lens 100 preferably has at least one of the technical features disclosed in the following paragraphs by adjusting the second curvature of the freecurved surface 12 a, but the present disclosure is not limited thereto. - The annular wearing portion 12 (e.g., a part of the annular wearing
portion 12 corresponding to the enclosing ring 42) has a largest thickness Tmax located at a part of the annular wearing portion 12 (e.g., the lower eyelid region 122) corresponding in position to theelectronic component 2, and also has a smallest thickness Tmin located at a part of the layout region 121 (e.g., a top part of thelayout region 121 shown inFIG. 4 ) away from thelower eyelid region 122. In other words, when thecontact lens 100 is worn on theeye 200, the part of the annular wearingportion 12 of thecontact lens 100 having the largest thickness Tmax is located inside of thelower eyelid 201 of theeye 200, and the part of the annular wearingportion 12 of thecontact lens 100 having the smallest thickness Tmin is located inside of theupper eyelid 202 of theeye 200. The largest thickness Tmax and the smallest thickness Tmin in the present embodiment respectively correspond in position to thelower eyelid 201 and theupper eyelid 202 of the user, but the relationship between the thickness of thecontact lens 100 and theeyelids - The
circuit structure 3 arranged in thepre-mold body 4 can be independently used (not shown in the drawings) or can be used in cooperation with theelectronic component 2, so that the circuit structure 3 (and the electronic component) can be electrically or physically driven to implement at least one of functions including energy reception, wireless signal transmission, digital calculation, sensing and monitoring, pressure application, current release, image projection, optical zoom, and power storage, but the present disclosure is not limited thereto. - The partial surface of the
circuit structure 3 is flush with an outer surface of the enclosingring 42 and is connected to the annular wearingportion 12. As shown inFIG. 1 toFIG. 5 , thecircuit structure 3 in the present embodiment includes acarrier 31 and a circuit 32 (e.g., a metallic circuit) formed on thecarrier 31. Thecircuit 32 is connected to theelectronic component 2 to be electrically coupled to each other, but the present disclosure is not limited thereto. For example, as shown inFIG. 6 toFIG. 8 , thecircuit structure 3 can include acircuit 32 that is connected to theelectronic component 2 and that is not formed on any carrier. In other words, the embeddedmodule 10 of the present embodiment can provide a pre-positioning function for thecircuit 32 through thepre-mold body 4, thereby preventing thecircuit 32 in the manufacturing process of thelens body 1 from being moved or being deformed. - In the present embodiment, as shown in
FIG. 1 toFIG. 5 , thecarrier 31 can be shaped to form a predetermined curved structure by being pressed from a mold at a normal temperature or a high temperature, so that thecarrier 31 has a fixed curvature that is different from the second curvature, and the fixed curvature is preferably close to the predetermined curvature of therear surface 1 b (e.g., the fixed curvature is 100% to 110% of the predetermined curvature), but the present disclosure is not limited thereto. - The
carrier 31 in the present embodiment is a flexible printed circuit board (FPCB) having a thickness within a range from 10 μm to 300 μm. Moreover, the thickness of thecarrier 31 is preferably within a range from 40 μm to 80 μm, and polymer materials of thecarrier 31 can include polyimide (PI), liquid-crystal polymer (LCP), polyethylene terephthalate (PET), or poly(ethylene 2,6-naphthalene dicarboxylate) (PEN), but the present disclosure is not limited thereto. - Specifically, the
carrier 31 has a C-shapedsegment 311 embedded in thelayout region 121 and aconnection segment 312 that is embedded in thelower eyelid region 122. Theconnection segment 312 is connected in-between two distal ends of the C-shapedsegment 311. Theelectronic component 2 can be assembled to theconnection segment 312, and thecircuit 32 is formed on the C-shapedsegment 311 and extends to theconnection segment 312 for being electrically coupled to theelectronic component 2. Each of thecarrier 31, thecircuit 32, and theelectronic component 2 can have a partial surface that is flush with the outer surface of the enclosingring 42 and that is connected to the annular wearing portion 12 (e.g., the partial surface of theelectronic component 2 is connected to the lower eyelid region 122). - Moreover, since the
carrier 31 easily wrinkles or has stress concentration in a pressing and forming process, the C-shapedsegment 311 has at least one thru-hole 3111 that is fully filled with the enclosingring 42. It should be noted that, in a top view of thecontact lens 100 along (or perpendicular to) the central axis L, an area of the at least one thru-hole 3111 is 1% to 85% (e.g., preferably 10% to 40%) of an area surrounded by an outer contour of the C-shapedsegment 311, thereby effectively reducing generation of the wrinkles or the stress concentration on thecarrier 31, and further increasing the oxygen permeability of thecontact lens 100 by being cooperated with the freecurved surface 12 a. - In addition, the
carrier 31 can have a plurality ofradial notches 313 recessed from an outer edge thereof toward the central axis L so as to allow thecarrier 31 to have a fixed curvature, thereby further reducing the generation of wrinkles or the stress concentration on thecarrier 31. In the present embodiment, theradial notches 313 are fully filled with the enclosingring 42, and theradial notches 313 are respectively formed on boundaries between the C-shapedsegment 311 and theconnection segment 312, but the present disclosure is not limited thereto. - Moreover, in the top view of the
contact lens 100, the area of the at least one thru-hole 3111 is 1% to 75% of an area of the annular wearingportion 12. Moreover, a quantity of the at least one thru-hole 3111 formed on the C-shapedsegment 311 in the present embodiment is more than one, but the present disclosure is not limited thereto. For example, in other embodiments of the present disclosure not shown in the drawings, the C-shapedsegment 311 of thecarrier 31 can be formed without any thru-hole 3111. - In the present embodiment, the
circuit 32 has at least one enclosed loop, and the thru-holes 3111 of the C-shapedsegment 311 are arranged in the at least one enclosed loop of thecircuit 32. It should be noted that a quantity of the at least one enclosed loop in the present embodiment is more than one, and the thru-holes 3111 are respectively arranged in the enclosed loops of thecircuit 32, but the present disclosure is not limited thereto. - Each of the thru-
holes 3111 is curved and has a width that gradually increases from two ends thereof toward a center thereof (e.g., the thru-hole 3111 in the present embodiment is substantially in a crescent shape). Specifically, any one of the thru-holes 3111 has aninner edge 3112 and anouter edge 3113, and two ends of theinner edge 3112 are respectively connected to two ends of theouter edge 3113 so as to form the two ends of the thru-hole 3111. - Any one of the
inner edge 3112 and theouter edge 3113 is in an arced shape, a radius of theinner edge 3112 is less than a radius of theouter edge 3113, and a center of theinner edge 3112 and a center of theouter edge 3113 are respectively located on two different planes perpendicular to the central axis L. In other words, each of the thru-holes 3111 in the present embodiment is arranged along the fixed curvature of thecarrier 31 and is not located on a flat plane. - In order to clearly describe the arrangement of the thru-
holes 3111, the following relationships are described according to the top view of thecontact lens 100. The central axis L defines an origin point, an X axis, and a Y axis that is perpendicular to the X axis, and the X axis and the Y axis are intersected at the origin point. Thecontact lens 100 is sequentially divided into a first quadrant Q1, a second quadrant Q2, a third quadrant Q3, and a fourth quadrant Q4 along a counterclockwise direction with respect to the origin point. - In the top view of the
contact lens 100, thelower eyelid region 122 is arranged in the third quadrant Q3 and the fourth quadrant Q4, the Y axis is substantially a center line of thelower eyelid region 122, and a central angle 6122 of thelower eyelid region 122 with respect to the origin point is preferably within a range from 30 degrees to 180 degrees. The central angle 6122 can be changed according to design requirements and is not limited by the present embodiment. - Moreover, in the top view of the
contact lens 100, the thru-holes 3111 are arranged in the first quadrant Q1, the second quadrant Q2, the third quadrant Q3, and the fourth quadrant Q4 (e.g., four parts of the thru-holes 3111 are respectively arranged in the first quadrant Q1, the second quadrant Q2, the third quadrant Q3, and the fourth quadrant Q4), and an area of any one of the four parts of the thru-holes 3111 is 50% to 150% of an area of another one of the four parts of the thru-holes 3111. - Specifically, in the top view of the
contact lens 100, any one of the thru-holes 3111 is arranged across at least two quadrants (e.g., any one of the thru-holes 3111 is arranged in the first quadrant Q1 and the fourth quadrant Q4, or is arranged in the second quadrant Q2 and the third quadrant Q3), and any one of the thru-holes 3111 can be mirror symmetrical to the X axis, but the present disclosure is not limited thereto. - The thru-
holes 3111 include at least one first thru-hole 3111 a and at least one second thru-hole 3111 b. Moreover, a quantity of the at least one first thru-hole 3111 a and a quantity of the at least one second thru-hole 3111 b in the present embodiment can each be more than one, but the present disclosure is not limited thereto. The first thru-holes 3111 a are located at an inner side of the second thru-holes 3111 b. In other words, a radius of each of the second thru-holes 3111 b is different from (e.g., greater than) a radius of each of the first thru-holes 3111 a. - In the present embodiment, each of the first thru-
holes 3111 a is in an arced shape having a center of circle located on the central axis L, and the first thru-holes 3111 a are spaced apart from each other. Each of the second thru-holes 3111 b is in an arced shape having a center of circle located on the central axis L, and the second thru-holes 3111 b are spaced apart from each other. - Moreover, any one of the first thru-
holes 3111 a is located in a region defined by a central angle of the corresponding second thru-hole 3111 b, and a partition between any two of the first thru-holes 3111 a adjacent to each other and a partition between any two of the second thru-holes 3111 b adjacent to each other are not arranged in a same radial direction of thecontact lens 100. - It should be noted that the
contact lens 100 in the present embodiment can be further cooperated with any kinds of devices. For example, in other embodiments of the present disclosure not shown in the drawings, thecontact lens 100 can be wirelessly connected to any wearable device (e.g., a glasses-mounted reader or a neck-worn reader) worn on a user, and the wearable device (or the reader) can use a common wireless transmission technology (e.g., the RFID technology in a bandwidth of 13.56 MHz or 860-960 MHz) or other wireless technologies of induction power or signal transmission so as to supply power, sensing function, or signal feedback for thecontact lens 100, thereby providing an intelligent monitoring (e.g., a full-time intraocular pressure value collection and warning), an intelligent treatment (e.g., a dry-eye drug sustained release control), AR services (e.g., an image projection), or other intelligent applications. - Referring to
FIG. 9 toFIG. 11 , a second embodiment of the present disclosure, which is similar to the first embodiment of the present disclosure, is provided. For the sake of brevity, descriptions of the same components in the first and second embodiments of the present disclosure will be omitted herein, and the following description only discloses different features between the first and second embodiments. - In the present embodiment, each of the thru-
holes 3111 has an elongated shape substantially having a same width, and thecarrier 31 has a plurality ofradial notches 313 that are recessed from an outer edge thereof toward the central axis L and that are embedded in thepre-mold body 4. - Specifically, in the top view of the
contact lens 100, an area of the thru-holes 3111 arranged in the first quadrant Q1 and the second quadrant Q2 can be greater than an area of the thru-holes 3111 arranged in the third quadrant Q3 and the fourth quadrant Q4. Moreover, an area of the thru-holes 3111 should be 1% to 85% (e.g., preferably 10% to 40%) of an area surrounded by an outer contour of the C-shapedsegment 311. - Moreover, the thru-
holes 3111 include a plurality of first thru-holes 3111 a and a plurality of second thru-holes 3111 b. The first thru-holes 3111 a are located at an inner side of the second thru-holes 3111 b. In other words, a radius of each of the second thru-holes 3111 b is different from (e.g., greater than) a radius of each of the first thru-holes 3111 a. - In the present embodiment, each of the first thru-
holes 3111 a is in an arced shape having a center of circle located on the central axis L, and the first thru-holes 3111 a are spaced apart from each other. Each of the second thru-holes 3111 b is in an arced shape having a center of circle located on the central axis L, and the second thru-holes 3111 b are spaced apart from each other. - Referring to
FIG. 12 toFIG. 17 , a third embodiment of the present disclosure, which is similar to the first and second embodiments of the present disclosure, is provided. For the sake of brevity, descriptions of the same components in the first to third embodiments of the present disclosure will be omitted herein, and the following description only discloses different features among the first to third embodiments. - In the present embodiment, the
pre-mold body 4 can be formed without the inneroptical layer 41 described in the first embodiment. In other words, the structure of thepre-mold body 4 provided by the present embodiment is similar or substantially identical to that of the enclosingring 42 described in the first embodiment. Specifically, thepre-mold body 4 in the present embodiment is ring-shaped and surrounds (an outer side of) theoptical portion 11, and a center of thepre-mold body 4 is located on the central axis L. Thepre-mold body 4 and thelens body 1 are gaplessly connected to each other so as to jointly form aconnection interface 43 that is spaced apart from the front surface 1 a and therear surface 1 b of thelens body 1. - Moreover, the
electronic component 2 and/or thecircuit structure 3 are embedded in thepre-mold body 4, and each of theelectronic component 2 and thecircuit structure 3 has a partial surface that is flush with an outer surface of thepre-mold body 4 and that is connected to the annular wearingportion 12. In addition, thecircuit structure 2 can include thecarrier 31 and thecircuit 32, which are shown inFIG. 12 toFIG. 14 ; or, thecircuit structure 2 can only include thecircuit 32 shown inFIG. 15 toFIG. 17 , but the present disclosure is not limited thereto. - It should be noted that the
carrier 31 of the present embodiment is provided as shown inFIG. 12 toFIG. 14 , but the present disclosure is not limited thereto. For example, in other embodiments of the present disclosure not shown in the drawings, according to design requirements, thecarrier 31 can be formed in a structure shown inFIG. 9 toFIG. 11 provided by the second embodiment. - In conclusion, in the contact lens provided by the present disclosure, the contact lens is designed to have the pre-mold body being made of the eye-friendly material for pre-enclosing and pre-positioning the circuit structure and the electronic component therein, so that the circuit structure and the electronic component in the manufacturing process of the contact lens can be positioned and entirely embedded in the lens body through the pre-mold body.
- Moreover, the contact lens of the present disclosure is provided with the free curved surface arranged on the front surface of the lens body, so that a thickness of the layout region does not need to be based completely on (or be equal to) a thickness of the lower eyelid region for thinning the layout region (e.g., the thickness of the annular wearing portion gradually increases in a direction toward the lower eyelid region). Accordingly, an oxygen permeability of the layout region can be effectively increased, and the foreign body sensation of the contact lens can be reduced (or improved).
- In addition, the contact lens of the present disclosure is provided with the at least one thru-hole being formed on the C-shaped segment and having a specific area (e.g., the area of the at least one thru-
hole 3111 is 1% to 85% of the area surrounded by an outer contour of the C-shaped segment 311), thereby effectively reducing the generation of wrinkles or the stress concentration on the carrier, and further increasing the oxygen permeability of the contact lens by being cooperated with the free curved surface. - The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
- The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.
Claims (20)
1. A contact lens, comprising:
a lens body including an optical portion and an annular wearing portion that surrounds the optical portion, wherein the lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye; and
an embedded module including:
a pre-mold body being made of an eye-friendly material, wherein the pre-mold body is entirely embedded in the lens body, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface, and wherein the pre-mold body includes:
an inner optical layer, wherein the inner optical layer is embedded in the optical portion so as to divide the optical portion into a front optical layer and a rear optical layer that is spaced apart from the front optical layer; and
an enclosing ring extending from a peripheral edge of the inner optical layer and embedded in the annular wearing portion; and
a circuit structure embedded in the enclosing ring, wherein a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
2. The contact lens according to claim 1 , wherein any one of a material of the lens body and the eye-friendly material of the pre-mold body includes a hydrogel or a silicone hydrogel, and the rear surface and the front surface of the lens body have no slot.
3. The contact lens according to claim 1 , wherein the front optical layer, the rear optical layer, and the inner optical layer sandwiched between the front optical layer and the rear optical layer cooperate to jointly provide a diopter of the contact lens.
4. The contact lens according to claim 1 , further comprising an electronic component that is connected to the circuit structure and that is embedded in the enclosing ring, wherein a partial surface of the electronic component is flush with the outer surface of the enclosing ring and is connected to the annular wearing portion.
5. The contact lens according to claim 4 , wherein the circuit structure includes a circuit that is connected to the electronic component and that is not formed on any carrier.
6. The contact lens according to claim 4 , wherein the circuit structure includes a carrier and a circuit that is formed on the carrier and that is connected to the electronic component.
7. The contact lens according to claim 6 , wherein the carrier includes:
a C-shaped segment having at least one thru-hole that is fully filled with the enclosing ring; and
a connection segment connected in-between two distal ends of the C-shaped segment;
wherein, in a top view of the contact lens, an area of the at least one thru-hole is 1% to 85% of an area surrounded by an outer contour of the C-shaped segment.
8. The contact lens according to claim 7 , wherein the optical portion defines a central axis; wherein, in the top view of the contact lens, the central axis defines an origin point, the contact lens is sequentially divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant along a counterclockwise direction with respect to the origin point; and wherein four parts of the at least one thru-hole are respectively arranged in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, and an area of any one of the four parts of the at least one thru-hole is 50% to 150% of an area of another one of the four parts of the at least one thru-hole.
9. The contact lens according to claim 6 , wherein the optical portion defines a central axis, and the carrier has a plurality of radial notches recessed from an outer edge thereof toward the central axis so as to allow the carrier to have a fixed curvature, and wherein the radial notches are fully filled with the enclosing ring.
10. The contact lens according to claim 4 , wherein the rear surface of the lens body has a predetermined curvature for being worn on the eye, and the front surface of the lens body has a viewable surface corresponding in position to the optical portion and a free curved surface that corresponds in position to the annular wearing portion, and wherein the viewable surface has a first curvature being different from a second curvature of the free curved surface, and a thickness of the annular wearing portion gradually increases in a direction toward the electronic component.
11. The contact lens according to claim 10 , wherein the annular wearing portion has a layout region being C-shaped and a lower eyelid region that is arranged between two ends of the layout region, and that is connected to the partial surface of the electronic component; and wherein, when the contact lens is worn on the eye, a part of the contact lens having a largest thickness is located inside of a lower eyelid of the eye, and a part of the contact lens having a smallest thickness is located inside of an upper eyelid of the eye.
12. A contact lens, comprising:
a lens body including an optical portion and an annular wearing portion that surrounds the optical portion, wherein the lens body has a front surface and a rear surface that is opposite to the front surface and that is configured for being worn on an eye; and
an embedded module including:
a pre-mold body being made of an eye-friendly material, wherein the pre-mold body is entirely embedded in the annular wearing portion of the lens body, the pre-mold body is ring-shaped and surrounds the optical portion, and the pre-mold body and the lens body are gaplessly connected to each other so as to jointly form a connection interface that is spaced apart from the front surface and the rear surface, and
a circuit structure embedded in the enclosing ring, wherein a partial surface of the circuit structure is flush with an outer surface of the enclosing ring and is connected to the annular wearing portion.
13. The contact lens according to claim 12 , wherein any one of a material of the lens body and the eye-friendly material of the pre-mold body includes a hydrogel or a silicone hydrogel, and the rear surface and the front surface of the lens body have no slot.
14. The contact lens according to claim 12 , further comprising an electronic component that is connected to the circuit structure and that is embedded in the enclosing ring, wherein a partial surface of the electronic component is flush with the outer surface of the enclosing ring and is connected to the annular wearing portion.
15. The contact lens according to claim 14 , wherein the circuit structure includes a circuit that is connected to the electronic component and that is not formed on any carrier.
16. The contact lens according to claim 14 , wherein the circuit structure includes a carrier and a circuit that is formed on the carrier and that is connected to the electronic component, and wherein the carrier includes:
a C-shaped segment having at least one thru-hole that is fully filled with the enclosing ring; and
a connection segment connected in-between two distal ends of the C-shaped segment;
wherein, in a top view of the contact lens, an area of the at least one thru-hole is 1% to 85% of an area surrounded by an outer contour of the C-shaped segment.
17. The contact lens according to claim 16 , wherein the optical portion defines a central axis; wherein, in the top view of the contact lens, the central axis defines an origin point, the contact lens is sequentially divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant along a counterclockwise direction with respect to the origin point; and wherein four parts of the at least one thru-hole are respectively arranged in the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, and an area of any one of the four parts of the at least one thru-hole is 50% to 150% of an area of another one of the four parts of the at least one thru-hole.
18. The contact lens according to claim 14 , wherein the circuit structure includes a carrier and a circuit that is formed on the carrier and that is connected to the electronic component, wherein the optical portion defines a central axis, and the carrier has a plurality of radial notches recessed from an outer edge thereof toward the central axis so as to allow the carrier to have a fixed curvature, and wherein the radial notches is fully filled with the enclosing ring.
19. The contact lens according to claim 14 , wherein the rear surface of the lens body has a predetermined curvature for being worn on the eye, and the front surface of the lens body has a viewable surface corresponding in position to the optical portion and a free curved surface that corresponds in position to the annular wearing portion, and wherein the viewable surface has a first curvature being different from a second curvature of the free curved surface, and a thickness of the annular wearing portion gradually increases in a direction toward the electronic component.
20. The contact lens according to claim 19 , wherein the annular wearing portion has a layout region being C-shaped and a lower eyelid region that is arranged between two ends of the layout region, and that is connected to the partial surface of the electronic component; and wherein, when the contact lens is worn on the eye, a part of the contact lens having a largest thickness is located inside of a lower eyelid of the eye, and a part of the contact lens having a smallest thickness is located inside of an upper eyelid of the eye.
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