Bearing jig for optical lens coating
Through the combination of inorganic brittle materials and transparent glass thin plates, UV stripping glue and UV lamp technology, the problems of deformation and low efficiency of traditional load bearing fixtures are solved, and the uniformity and efficient production of optical lens coating are achieved, reducing costs and improving Production density.
Patent Information
- Application Number
- CN202411228270.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2024-12-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the production of optical lens coatings, traditional plastic or metal materials have problems such as deformation caused by insufficient structural strength, thermal expansion and cold contraction caused by temperature changes, and reduction in production efficiency and cost increase in order to solve the deformation problem.
The carrier disk and transparent glass thin plate made of inorganic brittle materials can remove adhesion by bonding and irradiating the UV lamp, so as to achieve uniform coating and easy removal of optical lenses, and improve structural stability through the design of composite materials and adhesive layers. and production density.
Ensure uniformity and high processing yield of optical lens coating, reduce production costs, improve production efficiency, and achieve modular rapid adjustment and high production density through innovative design.
Smart Images
Figure CN119082690A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lens coating, and in particular to a supporting fixture for optical lens coating. Background Art
[0002] In the production process of optical lenses, coating is a key process. In order to improve production efficiency, manufacturers usually use a carrier jig to place a large number of lenses for coating at the same time. However, traditional carrier jigs are usually made of plastic injection or metal processing, which may cause coating quality problems in some cases.
[0003] First, the strength of plastic or metal materials is limited, especially when the holes and grooves on the supporting fixture are too densely designed, they are more prone to deformation. This deformation will cause the optical lens to be unstable during the coating process, which will affect the uniformity of the coating, resulting in inconsistent product quality and increasing the defect rate of production. Secondly, the coating operation is usually carried out in a high temperature environment, but the production environment may be in an air-conditioned room with strict temperature control. Therefore, when the supporting fixture made of plastic or metal materials experiences drastic temperature changes, it is prone to thermal expansion and cold contraction, further exacerbating the risk of deformation. This not only affects the coating effect of the optical lens, but may also shorten the life of the supporting fixture and increase production costs.
[0004] In order to deal with these problems, some manufacturers choose to increase the thickness of the bearing fixture to improve its ability to resist deformation. Although such improvements can prevent the deformation of the fixture to a certain extent, it has caused new problems. The thicker bearing fixture will interfere with the coated particles, so that the coating reaction time needs to be increased to reach the original film thickness of the thin plate, affecting production efficiency. In addition, in order to adapt to the thicker fixture, the hole groove is sometimes designed to be a cone hole to reduce the coating interference. Although this design can alleviate some angle interference problems, it also reduces the number of lenses that can be placed per unit area, reducing production efficiency.
[0005] In summary, there are many problems with traditional plastic or metal material bearing jigs in the production of optical lens coating. These problems include deformation caused by insufficient structural strength, deformation caused by process environment temperature difference, reduced production efficiency caused by solving the deformation problem, and production costs derived from the scrapping of the bearing jig due to deformation. Therefore, the present invention proposes a bearing jig for optical lens coating to solve the above-mentioned problems. Summary of the invention
[0006] The object of the present invention is to provide a supporting jig for optical lens coating to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above object, the present invention provides the following technical solution: a carrier jig for optical lens coating, comprising
[0008] A carrier plate is formed with a plurality of accommodating spaces, and an optical lens is placed in each of the accommodating spaces;
[0009] UV stripping adhesive (UV Tape), which is formed on the bonding surface of the carrier plate for removing the optical lens;
[0010] The glass sheet is adhered to the combined surface through the UV stripping adhesive and forms a position limit for the optical lens. The glass sheet is provided with a plurality of coating holes for the accommodating space, and the glass sheet is light-transmissive. The UV stripping adhesive can be irradiated with a UV lamp to remove the stickiness, thereby separating the glass sheet and taking out the optical lens that has been coated.
[0011] Preferably, the supporting plate includes a first thin plate and a second thin plate, the first thin plate is provided with a plurality of first openings equidistantly distributed, the second thin plate is provided with a plurality of second openings at the same positions corresponding to the first openings, and the first openings and the second openings constitute the accommodating space, and the first thin plate is used to support the outer periphery of the optical lens, and the second thin plate can be replaced with different thicknesses to match the thickness of the optical lens.
[0012] Preferably, the coating hole, the first opening and the second opening are all arranged concentrically, and the diameters of the coating hole and the first opening are both smaller than the diameter of the second opening.
[0013] Preferably, the first thin plate and the second thin plate are fixed by an adhesive layer, and the adhesive layer is a special glue for composite materials.
[0014] Preferably, the first thin plate and the second thin plate are both made of inorganic brittle materials without metallic properties.
[0015] Preferably, the material of the first thin plate and the second thin plate can be selected from one of glass, quartz, ceramic, ruby, sapphire, silicon nitride, silicon carbide and single crystal silicon, or a composite material of two or more thereof.
[0016] Preferably, the thickness of the first thin plate and the second thin plate combined is between 0.5 mm and 1 mm, and the thickness of the glass thin plate is between 0.2 mm and 0.3 mm.
[0017] Preferably, the thickness of the first thin plate and the glass thin plate are both 0.3 mm, and the thickness of the second thin plate is between 0.3 mm and 0.7 mm.
[0018] Preferably, the optical lens has a lens portion, and an outer ring portion is arranged around the periphery of the lens portion, the thickness of the second thin plate is slightly larger than the outer ring portion, and the first thin plate and the glass thin plate sandwich the outer ring portion to form a wandering gap.
[0019] Preferably, the glass sheet and the carrier plate are both disc-shaped and overlap each other, and the outer peripheries of the glass sheet and the carrier plate are both non-perforated and form a clamping ring portion.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] 1. The present invention places the optical lens in the accommodation space of the carrier tray, and the glass sheet is adhered to the carrier tray through the UV stripping adhesive to form a position restriction for the optical lens. The glass sheet is light-transmissive. After the coating operation is completed, the UV stripping adhesive can be irradiated with a UV lamp to remove the adhesive force, thereby separating the glass sheet and taking out the optical lens after the coating is completed, thereby ensuring that the optical lens can be evenly coated with a thin film, and the optical lens can be easily taken out, and the carrier tray and the glass sheet can be repeatedly used, so as to have both low production cost and high processing yield;
[0022] 2. The carrier plate of the present invention is made of an inorganic brittle material without metallic properties, and the glass sheet is made of a transparent glass material. The characteristics of the brittle material can prevent the center from being concave and deformed, thereby effectively reducing the overall thickness and opening up more accommodating spaces under the same area. Moreover, through the mutual bonding of the first sheet, the second sheet and the glass sheet, it is not easy to be too thin and brittle, thereby achieving the highest production density and an innovative design that can be modularly and quickly adjusted according to the design value of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the present invention;
[0024] Figure 2 It is a partial structural cross-sectional view of the present invention;
[0025] Figure 3 This is a schematic diagram of disassembling the optical lens of the present invention;
[0026] Figure 4 It is the coating working flow chart of the present invention.
[0027] In the figure: 10 carrier plate, 101 accommodating space, 102 bonding surface, 103 clamping ring, 104 wandering gap, 11 first thin plate, 111 first opening, 12 second thin plate, 121 second opening, 13 adhesive layer, 20 UV peeling glue, 30 glass thin plate, 301 clamping ring, 31 coating hole, 40 optical lens, 41 lens part, 42 outer ring part. DETAILED DESCRIPTION
[0028] See also Figures 1 to 4 The present invention provides a technical solution: a carrier fixture for optical lens coating, comprising
[0029] The carrier plate 10, the UV stripping adhesive 20 and the glass sheet 30 are formed with a plurality of accommodating spaces 101, and the accommodating spaces 101 are evenly distributed in an equirectangular shape, and an optical lens 40 is placed in each accommodating space 101, and the side where the optical lens 40 is placed is defined as a bonding surface 102 of the carrier plate 10;
[0030] The UV stripping adhesive 20 (UV Tape) is formed on the bonding surface 102 of the carrier plate 10 from which the optical lens 40 can be taken out. It can be applied to the bonding surface 102 in a liquid state, or attached to the bonding surface 102 in a tape state. The UV stripping adhesive 20 has a high adhesive property in normal state, and the adhesiveness will be greatly reduced after being irradiated with UV light (ultraviolet light), so that the two adhesive materials can be separated without residual adhesive;
[0031] The glass sheet 30 is bonded to the bonding surface 102 through the UV stripping adhesive 20, and forms a position restriction for the optical lens 40, thereby facilitating the movement and coating operation of the optical lens 40, and the coating operation includes physical vapor deposition (PVD) and atomic layer deposition (ALD), but is not limited to the above two coating methods;
[0032] The glass sheet 30 is provided with a plurality of coating holes 31 for the accommodation space 101, and the coating holes 31 are used to coat the optical lens 40. The glass sheet 30 is light-transmissive. After the coating operation is completed, the UV stripping adhesive 20 is irradiated with a UV lamp to remove the adhesive force, thereby separating the glass sheet 30 and taking out the coated optical lens 40, thereby ensuring that the optical lens 40 can be evenly coated with a thin film, and the optical lens 40 can be easily taken out, and the carrier plate 10 and the glass sheet 30 can be repeatedly used, so as to have both low production cost and high processing yield;
[0033] The carrier plate 10 includes a first thin plate 11 and a second thin plate 12. The first thin plate 11 is provided with a plurality of first openings 111 at equal intervals. The second thin plate 12 is provided with a plurality of second openings 121 at the same positions corresponding to the first openings 111. The first openings 111 and the second openings 121 form the accommodation space 101. The accommodation space 101 forms a stepped hole shape. The coating hole 31, the first opening 111 and the second opening 121 are all concentric. The hole 31 for coating and the first opening 111 are both smaller than the second opening 121. The first opening 111 and the second opening 121 are formed by processing the first thin plate 11 and the second thin plate 12 respectively. The first opening 111 and the second opening 121 only need to be formed into through holes with the same diameter, thereby reducing the difficulty of processing. In particular, when the carrier plate 10 is made of a brittle material, it is necessary to avoid forming a stepped hole or an oblique hole.
[0034] The first thin plate 11 is used to support the outer periphery of the optical lens 40, and the second thin plate 12 can be replaced with different thicknesses in accordance with the thickness of the optical lens 40, wherein the thickness of the first thin plate 11 and the second thin plate 12 is between 0.5 mm and 1 mm, and the thickness of the glass thin plate 30 is between 0.2 mm and 0.3 mm;
[0035] Furthermore, the optimal thickness of the first thin plate 11 and the glass thin plate 30 is 0.3 mm, and the thickness of the second thin plate 12 is between 0.3 mm and 0.7 mm, so that the total thickness of the carrier plate 10 and the glass thin plate 30 is less than 1.3 mm. The thin plate-shaped carrier plate 10 and the glass thin plate 30 can reduce the influence on the coating angle, and accordingly shorten the relative distance of each optical lens 40, so that more accommodating spaces 101 can be set within the unit area of the carrier plate 10, which is beneficial to increase the output of a single coating operation;
[0036] On the other hand, the first thin plate 11 and the second thin plate 12 are fixed by an adhesive layer 13, and the adhesive layer 13 can be a special glue for composite materials, so as to bond the same or different materials, such as glass to glass, glass to ceramic or quartz to single crystal silicon, so that the first thin plate 11 and the second thin plate 12 are bonded to form an integrated structure;
[0037] The glass sheet 30 and the carrier plate 10 are both disc-shaped and overlap each other, and the outer peripheries of the glass sheet 30 and the carrier plate 10 are both non-perforated and form a clamping ring portion 103, 301, which is convenient for picking up or carrying. The optical lens 40 is formed with a lens portion 41, and the periphery of the lens portion 41 is surrounded by an outer ring portion 42, and the thickness of the second thin plate 12 is slightly larger than the outer ring portion 42, and the first thin plate 11 and the glass sheet 30 clamp the outer ring portion 42 and form a floating gap 104, accordingly, the first thin plate 11 has the function of carrying the optical lens 40, and the glass sheet 30 has the function of preventing the optical lens 40 from jumping off the carrier plate 10, and the second thin plate 12 can not only change its thickness according to the design value of the optical lens 40, but also provide sufficient floating gap 104, thereby preventing the optical lens 40 from being squeezed and deformed, and facilitating the removal of the optical lens 40;
[0038] The first thin plate 11 and the second thin plate 12 are both made of inorganic brittle materials without metallic properties. The materials of the first thin plate 11 and the second thin plate 12 can be selected from one or more composite materials of glass, quartz, ceramics, ruby, sapphire, silicon nitride, silicon carbide and single crystal silicon. The carrier plate 10 is made of inorganic brittle materials without metallic properties, and the glass thin plate 30 is made of transparent glass material. The characteristics of its brittle material can prevent the center from being concave and deformed, so that the overall thickness can be effectively reduced and more accommodation spaces can be opened under the same area. Moreover, through the mutual bonding of the first thin plate 11, the second thin plate 12 and the glass thin plate 30, it is not easy to be too thin and brittle, thereby achieving the highest production density and the innovative design that can be quickly adjusted with the design value of the optical lens 40 modularly;
[0039] The process of coating operation includes the following steps:
[0040] Step 1, bonding the first thin plate 11 and the second thin plate 12 with the adhesive layer 13, so that the first opening 111 and the second opening 121 are cocentrically overlapped to form the accommodating space 101;
[0041] Step 2, placing the optical lens 40 into the accommodating space 101 from one side of the second thin plate 12, the outer ring portion 42 of the optical lens 40 is supported on the first thin plate 11, and the second opening 121 of the second thin plate 12 is surrounded by the outer edge of the outer ring portion 42;
[0042] Step 3, forming the UV tape on the bonding surface 102 of the second sheet 12, and the forming range can be the entire surface or limited to the clamping ring portion 103;
[0043] Step 4, bonding the glass sheet 30 to the UV stripping adhesive, that is, bonding the glass sheet 30 to the bonding surface 102, so that the coating hole 31 of the glass sheet 30 is aligned with the accommodating space 101, and the optical lens 40 is exposed from the coating hole 31;
[0044] Step 5, coating the optical lens 40 so that at least one layer of thin film is formed on the surface of the optical lens 40;
[0045] Step 6: Irradiate one side of the glass sheet 30 with a UV lamp to significantly reduce the adhesive force of the UV stripping adhesive;
[0046] Step 7, after separating the glass plate 30, take out the optical lens 40 after coating. The above-mentioned operation flow can ensure that the carrier plate 10 and the glass plate 30 complete the coating operation on the optical lens without deformation, thereby improving the production yield, and repeatedly using the carrier plate 10 and the glass plate 30. Moreover, by selecting inorganic brittle materials without metallic properties to make the carrier plate 10 and the glass plate 30 made of glass material, the overall thickness can be further reduced and more optical lenses 40 can be placed under the same unit area, so as to effectively increase the processing volume of a single coating operation.
[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A carrier fixture for optical lens coating, Features: include A carrier plate is formed with a plurality of accommodating spaces, and an optical lens is placed in each of the accommodating spaces; UV stripping adhesive (UV Tape), which is formed on the bonding surface of the carrier plate for removing the optical lens; as well as The glass sheet is adhered to the combined surface through the UV stripping adhesive and forms a position limit for the optical lens. The glass sheet is provided with a plurality of coating holes for the accommodating space and is light-transmissive. The UV stripping adhesive can be irradiated with a UV lamp to remove the adhesion, thereby separating the glass sheet and taking out the optical lens that has been coated.
2. The optical lens coating carrier according to claim 1, Features: The supporting plate includes a first thin plate and a second thin plate. The first thin plate is provided with a plurality of first openings at equal intervals, and the second thin plate is provided with a plurality of second openings at the same positions corresponding to the first openings. The first openings and the second openings constitute the accommodating space. The first thin plate is used to support the outer periphery of the optical lens, and the second thin plate can be replaced with different thicknesses to match the thickness of the optical lens.
3. The optical lens coating carrying jig according to claim 2, Features: The coating hole, the first opening and the second opening are all arranged concentrically, and the diameters of the coating hole and the first opening are both smaller than the diameter of the second opening.
4. The optical lens coating carrier according to claim 2, Features: The first thin plate and the second thin plate are fixed by an adhesive layer, and the adhesive layer is a special glue for composite materials.
5. The optical lens coating carrying jig according to claim 4, Features: The first thin plate and the second thin plate are both made of inorganic brittle materials without metallic properties.
6. The optical lens coating carrying jig according to claim 5, Features: The material of the first thin plate and the second thin plate can be selected from one of glass, quartz, ceramic, ruby, sapphire, silicon nitride, silicon carbide and single crystal silicon, or a composite material of two or more thereof.
7. The optical lens coating carrier according to claim 4, Features: The thickness of the first thin plate and the second thin plate combined is between 0.5 mm and 1 mm, and the thickness of the glass thin plate is between 0.2 mm and 0.3 mm.
8. The optical lens coating carrying jig according to claim 7, Features: The thickness of the first thin plate and the glass thin plate are both 0.3 mm, and the thickness of the second thin plate is between 0.3 mm and 0.7 mm.
9. The optical lens coating carrying jig according to claim 8, Features: The optical lens is formed with a lens portion, and an outer ring portion is arranged around the periphery of the lens portion. The thickness of the second thin plate is slightly larger than the outer ring portion, and the first thin plate and the glass thin plate sandwich the outer ring portion to form a floating gap.
10. The optical lens coating carrying jig according to claim 1, Features: The glass sheet and the carrier plate are both disc-shaped and overlap each other, and the outer peripheries of the glass sheet and the carrier plate are both in a non-perforated shape to form a clamping ring portion.