Contact lens as well as mold and light curing equipment for preparing contact lens

Abstract

The present invention discloses a contact lens, and relates to the technical field of contact lens preparation, the contact lens comprises a surface layer lens, a middle layer lens and an inner layer lens, the middle layer lens is annular and is located in a non-optical area of the contact lens, the side wall of the surface layer lens is provided with a groove for placing the middle layer lens, and the inner layer lens is located in the groove. A manufacturing material of the middle-layer lens contains diluted essential oil, manufacturing materials of the surface-layer lens and the inner-layer lens do not contain essential oil, and the surface-layer lens and the inner-layer lens are connected through photocuring operation. According to the contact lens, the contact lens is arranged in a layered manner, and the lens containing the diluted essential oil is arranged as the middle-layer lens of the contact lens, so that the problems that the essential oil possibly corrodes the lens material and the residual essential oil possibly stimulates the cornea are effectively solved, and the contact lens capable of emitting fragrance is provided.

Description

Technical Field

[0001] The invention relates to the technical field of contact lens preparation, in particular to a contact lens and a mold and a light-curing device for preparing the contact lens. Background Art

[0002] Existing contact lenses can be classified into vision correction contact lenses, cosmetic contact lenses and therapeutic contact lenses according to their functions. Among them, contact lenses are usually made of hydrogel or silicone hydrogel, and essential oils have a solubility risk to hydrogel or silicone hydrogel. Essential oils may corrode the lens material, and residual essential oils may also irritate the cornea, causing redness, dry eyes or infection. Therefore, essential oils are not added when making contact lenses, and there are no scented contact lenses on the current market.

[0003] Therefore, how to combine contact lenses with essential oils to allow the contact lenses to emit fragrance without affecting the normal use of the contact lenses has become a difficult problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The purpose of the present invention is to provide a contact lens and a mold and a light curing device for preparing the contact lens, so as to solve the problem that the normal use of the existing contact lenses will be affected after adding essential oils.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a contact lens, comprising a surface lens, an intermediate lens and an inner lens, wherein the intermediate lens is annular and is located in a non-optical area of the contact lens, a groove for placing the intermediate lens is arranged on the side wall of the surface lens, the intermediate lens is made of materials containing diluted essential oil, the surface lens and the inner lens are made of materials that do not contain essential oil, and the surface lens and the inner lens are connected by a photocuring operation.

[0007] A mold for preparing contact lenses comprises a lower mold, a first upper mold, a second upper mold and a third upper mold, wherein the lower mold is provided with an inner arc surface with optical function, the outer arc surface of the first upper mold is provided with a raised ring, the outer arc surface of the second upper mold is provided with an annular groove, and the outer arc surface of the third upper mold matches the inner arc surface of the lower mold.

[0008] Optionally, a limiting groove is formed in the side peripheral wall of the lower mold, a first limiting ring is arranged on the side peripheral wall of the first upper mold, the first limiting ring is clamped in the limiting groove, and the lower mold and the first upper mold cooperate with each other to manufacture the surface layer lens; a second limiting ring is arranged on the side peripheral wall of the second upper mold, the second limiting ring is clamped in the limiting groove, and the lower mold and the second upper mold cooperate with each other to manufacture the intermediate layer lens; a third limiting ring is arranged on the side peripheral wall of the third upper mold, the third limiting ring is clamped in the limiting groove, and the lower mold and the third upper mold cooperate with each other to manufacture the inner layer lens.

[0009] A light curing device for preparing contact lenses, comprising an outer cylinder, an inner cylinder, a height adjusting member, a rotating member, a displacement adjusting member and an angle adjusting member. The inner cylinder is arranged in the outer cylinder in a liftable manner through the height adjusting member. The rotating member is installed in the inner cylinder, the displacement adjusting member is installed on the rotating member, the angle adjusting member is installed on the displacement adjusting member, and a laser is installed on the angle adjusting member.

[0010] Optionally, a sliding groove is arranged on the inner wall of the outer cylinder, a cylinder cover is arranged at the top of the outer cylinder, and the center of the cylinder cover is made of a light-transmitting material.

[0011] Optionally, a sliding strip is arranged on the side peripheral wall of the inner cylinder, and the sliding strip is slidably connected in the sliding groove; the height adjusting member includes a first servo electric cylinder, the first servo electric cylinder is installed in the outer cylinder, and the inner cylinder is installed at the output end of the first servo electric cylinder.

[0012] Optionally, the rotating member includes a first motor, the first motor is installed in the inner cylinder, and the output end of the first motor is drivingly connected with a turntable, and the turntable is located outside the inner cylinder.

[0013] Optionally, the displacement adjusting member includes a second motor, an installation groove, a lead screw and a transmission block. The second motor and the installation groove are both installed on the turntable, the lead screw is rotatably connected in the installation groove, the transmission block is threadedly connected to the lead screw, and the output end of the second motor is drivingly connected with the lead screw.

[0014] Optionally, the angle adjusting member includes a bottom plate, a second servo electric cylinder, a connecting rod and a mounting plate. The bottom plate is installed on the transmission block, the second servo electric cylinder is installed at one end of the bottom plate, the mounting plate is hinged to the other end of the bottom plate, one end of the connecting rod is hinged to the output end of the second servo electric cylinder, and the other end is hinged to the mounting plate, and the laser is installed on the mounting plate.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are:

[0016] By arranging the contact lens in layers and setting the lens containing diluted essential oil as the middle layer lens of the contact lens, the present invention effectively solves the problems that the essential oil may corrode the lens material and the residual essential oil may also irritate the cornea, and provides a contact lens capable of emitting fragrance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings.

[0018] Figure 1 is an exploded structural schematic diagram of the contact lens of the present invention;

[0019] Figure 2 is a structural schematic diagram of the contact lens of the present invention;

[0020] Figure 3 is a structural schematic diagram of the lower mold of the present invention;

[0021] Figure 4 is a structural schematic diagram of the second upper mold of the present invention;

[0022] Figure 5 is a structural schematic diagram of the first upper mold of the present invention;

[0023] Figure 6 is a structural schematic diagram of the third upper mold of the present invention;

[0024] Figure 7 is an exploded structural schematic diagram of the light curing device of the present invention;

[0025] Figure 8 is a structural schematic diagram of the light curing device of the present invention;

[0026] Figure 9 is a structural schematic diagram of the inner cylinder of the present invention;

[0027] Figure 10 is a front view of the internal structure of the inner cylinder of the present invention;

[0028] Figure 11 is a schematic diagram of the internal structure of the inner cylinder of the present invention.

[0029] Description of reference numerals: 1, surface layer lens; 2, middle layer lens; 3, inner layer lens; 4, lower mold; 5, first upper mold; 6, second upper mold; 7, third upper mold; 41, limiting groove; 51, first limiting ring; 61, second limiting ring; 71, third limiting ring;

[0030] 10, outer cylinder; 20, inner cylinder; 30, height adjusting member; 40, rotating member; 50, displacement adjusting member; 60, angle adjusting member;

[0031] 101, chute; 102, cylinder cover; 201, slide bar; 301, first servo cylinder; 401, first motor; 402, turntable; 501, second motor; 502, mounting groove; 503, lead screw; 504, transmission block; 601, bottom plate; 602, second servo cylinder; 603, connecting rod; 604, mounting plate. Detailed implementation

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] As Figure 1-2 shown, this embodiment provides a contact lens, including a surface lens 1, an intermediate lens 2 and an inner lens 3. The intermediate lens 2 is annular and located in the non-optical area of the contact lens. A groove for placing the intermediate lens 2 is provided on the side wall of the surface lens 1. The production material of the intermediate lens 2 contains diluted essential oil. The production materials of the surface lens 1 and the inner lens 3 do not contain essential oil. The surface lens 1 and the inner lens 3 are connected by a light curing operation.

[0034] As Figure 3-6 shown, this embodiment provides a mold for manufacturing a contact lens, including a lower mold 4, a first upper mold 5, a second upper mold 6 and a third upper mold 7. The lower mold 4 is provided with an inner arc surface with optical function. A raised ring is provided on the outer arc surface of the first upper mold 5. An annular groove is provided on the outer arc surface of the second upper mold 6. The outer arc surface of the third upper mold 7 matches the inner arc surface of the lower mold 4.

[0035] Specifically, a limiting groove 41 is opened on the side peripheral wall of the lower mold 4. A first limiting ring 51 is provided on the side peripheral wall of the first upper mold 5. The first limiting ring 51 is clamped in the limiting groove 41. The lower mold 4 and the first upper mold 5 cooperate with each other to manufacture the surface lens 1. A second limiting ring 61 is provided on the side peripheral wall of the second upper mold 6. The second limiting ring 61 is clamped in the limiting groove 41. The lower mold 4 and the second upper mold 6 cooperate with each other to manufacture the intermediate lens 2. A third limiting ring 71 is provided on the side peripheral wall of the third upper mold 7. The third limiting ring 71 is clamped in the limiting groove 41. The lower mold 4 and the third upper mold 7 cooperate with each other to manufacture the inner lens 3.

[0036] As Figure 7-11As shown in the figure, this embodiment provides a light-curing device for manufacturing contact lenses, which includes an outer cylinder 10, an inner cylinder 20, a height adjusting member 30, a rotating member 40, a displacement adjusting member 50, and an angle adjusting member 60. The inner cylinder 20 is disposed in the outer cylinder 10 in a liftable manner through the height adjusting member 30. The rotating member 40 is installed in the inner cylinder 20. The displacement adjusting member 50 is installed on the rotating member 40. The angle adjusting member 60 is installed on the displacement adjusting member 50. A laser is installed on the angle adjusting member 60.

[0037] Specifically, a chute 101 is provided on the inner wall of the outer cylinder 10. A cylinder cover 102 is provided at the top of the outer cylinder 10. The center of the cylinder cover 102 is made of a light-transmitting material.

[0038] Specifically, a sliding strip 201 is provided on the side peripheral wall of the inner cylinder 20. The sliding strip 201 is slidably connected in the chute 101. The height adjusting member 30 includes a first servo electric cylinder 301. The first servo electric cylinder 301 is installed in the outer cylinder 10. The inner cylinder 20 is installed at the output end of the first servo electric cylinder 301.

[0039] Specifically, the rotating member 40 includes a first motor 401. The first motor 401 is installed in the inner cylinder 20. The output end of the first motor 401 is drivingly connected to a turntable 402. The turntable 402 is located outside the inner cylinder 20.

[0040] Specifically, the displacement adjusting member 50 includes a second motor 501, a mounting groove 502, a lead screw 503, and a transmission block 504. The second motor 501 and the mounting groove 502 are both installed on the turntable 402. The lead screw 503 is rotatably connected in the mounting groove 502. The transmission block 504 is threadedly connected to the lead screw 503. The output end of the second motor 501 is drivingly connected to the lead screw 503.

[0041] Specifically, the angle adjusting member 60 includes a bottom plate 601, a second servo electric cylinder 602, a connecting rod 603, and a mounting plate 604. The bottom plate 601 is installed on the transmission block 504. The second servo electric cylinder 602 is installed at one end of the bottom plate 601. The mounting plate 604 is hinged to the other end of the bottom plate 601. One end of the connecting rod 603 is hinged to the output end of the second servo electric cylinder 602, and the other end is hinged to the mounting plate 604. The laser is installed on the mounting plate 604.

[0042] The working process of the present invention is as follows:

[0043] First step, inject the contact lens manufacturing material into the lower mold 4, snap the first upper mold 5 onto the lower mold 4, and use a light curing device to perform light curing on it to obtain the surface lens 1.

[0044] Second step, inject the contact lens manufacturing material containing diluted essential oil into another lower mold 4, snap the second upper mold 6 onto the lower mold 4, and use a light curing device to perform light curing on it to obtain the intermediate layer lens 2.

[0045] Third step, remove the intermediate layer lens 2 and place it in the groove of the surface lens 1. Place the surface lens 1 in the lower mold 4, inject the contact lens manufacturing material into the lower mold 4, snap the third upper mold 7 onto the lower mold 4, and use a light curing device to perform light curing on it to obtain the contact lens with the inner layer lens 3 and the surface lens 1 combined together.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0047] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A contact lens, characterized in that: It includes a surface lens (1), an intermediate lens (2) and an inner lens (3). The intermediate lens (2) is annular and located in the non-optical area of the contact lens. A groove for placing the intermediate lens (2) is provided on the side wall of the surface lens (1). The production material of the intermediate lens (2) contains diluted essential oil, and the production materials of the surface lens (1) and the inner lens (3) do not contain essential oil. The surface lens (1) and the inner lens (3) are connected by a photocuring operation.

2. A mold for preparing the contact lens as claimed in claim 1, characterized in that: It includes a lower mold (4), a first upper mold (5), a second upper mold (6) and a third upper mold (7). An inner arc surface with optical function is provided on the lower mold (4). A raised ring is provided on the outer arc surface of the first upper mold (5). An annular groove is provided on the outer arc surface of the second upper mold (6). The outer arc surface of the third upper mold (7) matches the inner arc surface of the lower mold (4).

3. A mold for manufacturing a contact lens as claimed in claim 1, characterized in that: A limiting groove (41) is opened on the side peripheral wall of the lower mold (4). A first limiting ring (51) is provided on the side peripheral wall of the first upper mold (5), and the first limiting ring (51) is clamped in the limiting groove (41). The lower mold (4) and the first upper mold (5) cooperate with each other to produce the surface lens (1); a second limiting ring (61) is provided on the side peripheral wall of the second upper mold (6), and the second limiting ring (61) is clamped in the limiting groove (41). The lower mold (4) and the second upper mold (6) cooperate with each other to produce the intermediate lens (2); a third limiting ring (71) is provided on the side peripheral wall of the third upper mold (7), and the third limiting ring (71) is clamped in the limiting groove (41). The lower mold (4) and the third upper mold (7) cooperate with each other to produce the inner lens (3).

4. A photo-curing device for preparing the contact lens as claimed in claim 1, characterized in that: It includes an outer cylinder (10), an inner cylinder (20), a height adjusting member (30), a rotating member (40), a displacement adjusting member (50) and an angle adjusting member (60). The inner cylinder (20) is arranged in the outer cylinder (10) in a liftable manner through the height adjusting member (30). The rotating member (40) is installed in the inner cylinder (20). The displacement adjusting member (50) is installed on the rotating member (40). The angle adjusting member (60) is installed on the displacement adjusting member (50). A laser is installed on the angle adjusting member (60).

5. An optical curing device for preparing the contact lens as claimed in claim 1, as claimed in claim 4, wherein: A sliding groove (101) is provided on the inner wall of the outer cylinder (10). A cylinder cover (102) is provided at the top of the outer cylinder (10), and the center of the cylinder cover (102) is made of a light-transmitting material.

6. An optical curing device for preparing a contact lens as claimed in claim 1, as claimed in claim 5, characterized in that: A sliding bar (201) is provided on the side peripheral wall of the inner cylinder (20), and the sliding bar (201) is slidably connected in the sliding groove (101); the height adjusting member (30) includes a first servo electric cylinder (301), the first servo electric cylinder (301) is installed in the outer cylinder (10), and the inner cylinder (20) is installed at the output end of the first servo electric cylinder (301).

7. A photo-curing device for preparing a contact lens as claimed in claim 1, as claimed in claim 4, characterized in that: The rotating member (40) includes a first motor (401), the first motor (401) is installed inside the inner cylinder (20), the output end of the first motor (401) is drivingly connected to a turntable (402), and the turntable (402) is located outside the inner cylinder (20).

8. An optical curing device for preparing a contact lens as described in claim 1, as described in claim 7, characterized in that: The displacement adjusting member (50) includes a second motor (501), a mounting groove (502), a lead screw (503) and a transmission block (504). The second motor (501) and the mounting groove (502) are both installed on the turntable (402). The lead screw (503) is rotatably connected inside the mounting groove (502). The transmission block (504) is threadedly connected to the lead screw (503), and the output end of the second motor (501) is drivingly connected to the lead screw (503).

9. An optical curing device for preparing the contact lens as claimed in claim 1, as claimed in claim 8, wherein: The angle adjusting member (60) includes a bottom plate (601), a second servo cylinder (602), a connecting rod (603) and a mounting plate (604). The bottom plate (601) is installed on the transmission block (504). The second servo cylinder (602) is installed at one end of the bottom plate (601). The mounting plate (604) is hinged to the other end of the bottom plate (601). One end of the connecting rod (603) is hinged to the output end of the second servo cylinder (602), and the other end is hinged to the mounting plate (604). The laser is installed on the mounting plate (604).

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