Lens and manufacturing method thereof, coating clamp and manufacturing method and device thereof

Abstract

The embodiment of the invention provides a lens, a manufacturing method of the lens, a coating clamp, a manufacturing method of the coating clamp and a device, and the manufacturing method of the lens comprises the steps that a lens body is fixed through the coating clamp, the coating clamp comprises a coating part with a plurality of second hole structures, and the shape of the coating part is matched with the surface shape of the end face of the lens body; and the end face of the lens main body is coated with a film, so that a plurality of film layer units are formed on the end face of the lens main body, gaps are formed between the adjacent film layer units, and the plurality of film layer units are matched with the plurality of second hole structures of the film coating part. By adopting the technical scheme, the probability of film cracking or bulging of the film layer can be reduced, and the film coating reliability is ensured.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of laser radar technology, and in particular to a lens and a manufacturing method thereof, a coating fixture and a manufacturing method and device thereof. Background Art

[0002] The lens is an important component of LiDAR, which is used to shape the light beam. For radar, the transmittance of the lens is an important parameter. A film layer is usually set on the surface of the lens to reduce the reflectivity of the lens and increase the transmittance performance.

[0003] The film layer and the lens substrate are different, and the corresponding thermal expansion coefficients are also different. The greater the temperature difference in the environment where the lens is used, the greater the probability of film cracks or bulging on the lens surface. Therefore, how to provide an improved technical solution to reduce the probability of film cracks or bulging and ensure the reliability of the coating has become an urgent problem to be solved. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a lens and a manufacturing method thereof, a coating fixture and a manufacturing method and device thereof, which can reduce the probability of film cracks or bulging in the film layer unit and ensure the reliability of the coating.

[0005] First, an embodiment of the present invention provides a method for manufacturing a lens, comprising:

[0006] Fixing the lens body by a coating fixture, wherein the coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion is adapted to the end surface shape of the lens body;

[0007] The end surface of the lens body is coated so that a plurality of film layer units are formed on the end surface of the lens body, with gaps between adjacent film layer units, wherein the plurality of film layer units are matched with the plurality of second hole structures of the coating portion.

[0008] Optionally, coating the end surface of the lens body includes:

[0009] The end surface of the lens body is coated on the side of the coating fixture away from the lens body.

[0010] Optionally, coating the end surface of the lens body so as to form a plurality of film layer units on the end surface of the lens body comprises:

[0011] Coating the end surface of the lens body so that a plurality of connection layer units are formed on the end surface of the lens body, with gaps between adjacent connection layer units, wherein the plurality of connection layer units are adapted to the plurality of second hole structures of the coating portion;

[0012] The plurality of connection layer units are coated so that a plurality of film layer units are formed on the end surface of the lens body, wherein the plurality of film layer units are matched with the plurality of connection layer units.

[0013] Optionally, fixing the lens body by means of a coating fixture comprises:

[0014] Fix the coating fixture by the stage;

[0015] Fix the lens body by the coating fixture.

[0016] Optionally, the end surface of the lens body includes: a first end surface and a second end surface, wherein the first end surface is arranged opposite to the second end surface;

[0017] The coating fixture comprises a coating portion having a plurality of second hole structures, the shape of the coating portion being adapted to the end surface shape of the lens body, and comprising at least one of the following:

[0018] The coating fixture is a first coating fixture, the first coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion of the first coating fixture is adapted to the shape of the first end surface of the lens body;

[0019] The coating fixture is a second coating fixture, and the second coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion of the second coating fixture is adapted to the shape of the second end surface of the lens body.

[0020] Optionally, fixing the lens body by a coating fixture and coating the end surface of the lens body comprises at least one of the following:

[0021] Fixing the lens body by a first coating fixture, and coating the first end surface of the lens body;

[0022] The lens body is fixed by a second coating fixture, and the second end surface of the lens body is coated.

[0023] Optionally, before fixing the lens body by the coating fixture, the method further comprises:

[0024] Manufacture of coating fixtures.

[0025] Optionally, after coating the end surface of the lens body, the method further comprises:

[0026] Determine whether the quality of the lens is qualified;

[0027] When the quality of the lens is unqualified, the coating jig is remanufactured and the lens is manufactured using the new coating jig.

[0028] Optionally, judging whether the quality of the lens is qualified includes:

[0029] Based on the current performance parameters of the lens and the preset performance parameters, determine whether the quality of the lens is qualified;

[0030] When the current performance parameters of the lens meet the preset performance parameters, the quality of the lens is determined to be qualified; when the current performance parameters of the lens do not meet the preset performance parameters, the quality of the lens is determined to be unqualified.

[0031] Optionally, the performance parameters of the lens include at least one of the following:

[0032] Transmittance;

[0033] The bulging rate between the film unit and the lens body within the preset temperature range;

[0034] The film crack rate between the film layer unit and the lens body within a preset temperature range.

[0035] Accordingly, an embodiment of the present invention further provides a lens, comprising:

[0036] Lens body;

[0037] A plurality of film layer units, wherein the plurality of film layer units are distributed on the end surface of the lens body, and there are gaps between adjacent film layer units;

[0038] The plurality of film layer units are obtained through a coating portion which is adapted to the end surface shape of the lens body and has a plurality of second hole structures.

[0039] Optionally, the end surface of the lens body includes a first end surface and a second end surface, and the first end surface is arranged opposite to the second end surface;

[0040] The plurality of film layer units are distributed on the end surface of the lens body, and there is a gap between adjacent film layer units, including:

[0041] The plurality of film layer units are distributed on the first end surface and / or the second end surface of the lens body, and there is a gap between adjacent film layer units on the same end surface of the lens body.

[0042] Optionally, it also includes:

[0043] The plurality of connection layer units are located between the lens body and the plurality of film layer units. The plurality of connection layer units are matched with the plurality of film layer units and are suitable for connecting the lens body and the plurality of film layer units.

[0044] Optionally, the substrate of the lens includes at least one of the following:

[0045] plastic;

[0046] Glass.

[0047] Accordingly, an embodiment of the present invention further provides a method for manufacturing a coating fixture, comprising:

[0048] forming a porous region on a substrate;

[0049] At least a part of the porous area is processed into a coating portion, wherein the porous area corresponding to the coating portion has a plurality of first hole structures, and the shape of the coating portion is adapted to the end face of the lens body;

[0050] Wherein, the coating portion has a plurality of second hole structures, and the plurality of second hole structures are adapted to the plurality of first hole structures; the plurality of second hole structures are suitable for forming a plurality of film layer units on the end face of the lens body.

[0051] Optionally, forming a porous region on the substrate comprises:

[0052] A porous area is formed on the substrate according to the end surface shape of the lens body and the sizes and distribution of a plurality of film layer units preset on the end surface of the lens body.

[0053] Optionally, forming a porous area on the substrate comprises:

[0054] A porous region is formed on the substrate by at least one of the following processing methods:

[0055] Laser cutting; Mechanical punching;

[0056] The step of processing at least a portion of the porous area into a coating portion comprises:

[0057] At least a portion of the porous area is processed into a coating portion by at least one of the following processing methods:

[0058] Mechanical stamping; injection molding.

[0059] Optionally, the method further comprises:

[0060] The area outside the porous area corresponding to the coating part on the substrate is processed into a fixing part, and the fixing part is located at the edge of the coating part and forms an angle with the edge of the coating part.

[0061] Optionally, processing at least the area outside the porous area corresponding to the coating portion on the substrate into the fixed portion comprises:

[0062] While at least a part of the porous area is processed into the coating portion, at least an area outside the porous area corresponding to the coating portion on the substrate is processed into a fixing portion.

[0063] Accordingly, an embodiment of the present invention further provides a coating fixture, comprising:

[0064] a coating portion, wherein the coating portion has a plurality of second hole structures;

[0065] The shape of the coating part of the coating fixture is matched with the end surface shape of the lens body, and the multiple second hole structures of the coating part are matched with the multiple film layer units on the end surface of the lens body.

[0066] Optionally, the coating fixture further comprises:

[0067] A fixing portion, wherein the fixing portion is located at an edge of the coating portion and forms an angle with the edge of the coating portion.

[0068] Accordingly, an embodiment of the present invention further provides a coating device, comprising:

[0069] The coating fixture as described in any of the above embodiments;

[0070] The carrier is suitable for fixing the coating fixture.

[0071] Optionally, the carrier comprises:

[0072] A coating hole, in which the coating portion of the coating fixture is embedded;

[0073] A step groove, wherein the step groove is opened at the end of the coating hole;

[0074] The fixing part of the coating fixture is fixed on the bottom surface of the step groove.

[0075] By adopting the technical solution provided by the embodiment of the present invention, the lens body is fixed by a coating fixture, and a plurality of film layer units that are compatible with the plurality of second hole structures of the coating part of the coating fixture, as well as gaps between adjacent film layer units, are formed on the end surface of the lens body. The magnitude of the stress borne by the film layer unit is related to the size of the film layer unit. By adjusting the gaps between adjacent film layer units, the size of each film layer unit on the end surface of the lens body can be adjusted, so that the stress borne by the film layer unit can be adjusted to below the tensile limit of the film layer unit, thereby reducing the probability of film cracks or bulging in the film layer unit and ensuring the reliability of coating.

[0076] Furthermore, the difference in change due to thermal expansion between the film layer unit and the connecting layer unit is smaller than the difference in change due to thermal expansion between the film layer unit and the lens body. By using the connecting layer unit as a buffer layer between the lens body and the film layer unit, the stress exerted by the lens body on the film layer unit can be reduced, thereby reducing the probability of film cracks or bulging in the film layer unit.

[0077] Furthermore, by testing the lens, the current performance parameters of the lens can be determined, so that based on the current performance parameters of the lens and the corresponding preset performance parameters, it can be judged whether the quality of the lens is qualified, so as to provide a basis for subsequent selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the drawings required for use in the embodiments of this specification or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0079] Figure 1A to Figure 1F A schematic diagram and a top view of the structure of a lens under different temperature conditions are shown.

[0080] Figure 2A to Figure 2F The schematic diagram and top view of another lens at different temperatures are shown.

[0081] Figure 3 A flow chart of a method for manufacturing a lens in an embodiment of the present invention is shown.

[0082] Figure 4 A specific flow chart of a method for manufacturing a lens in an embodiment of the present invention is shown.

[0083] Figure 5A to Figure 5D The structure schematic diagram and top view of a lens in an embodiment of the present invention under different temperature conditions are shown.

[0084] Figure 6 A flow chart of a method for manufacturing a coating fixture in an embodiment of the present invention is shown.

[0085] Figure 7 A schematic structural diagram of a substrate in an embodiment of the present invention is shown.

[0086] Figure 8 A specific flow chart of a method for manufacturing a coating fixture in an embodiment of the present invention is shown.

[0087] Fig. 9 A structural schematic diagram and a front view of a coating fixture in an embodiment of the present invention are shown.

[0088] Fig.10 A schematic diagram of a specific application scenario of a coating fixture in an embodiment of the present invention is shown.

[0089] Fig.11 A schematic structural diagram of a coating device in an embodiment of the present invention is shown.

[0090] Fig.12 A schematic structural diagram of a carrier in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0091] As described in the background technology, the lens is an important component of the laser radar, and the lens is used to shape the light beam. For laser radar, the transmittance and reflectance of the lens are important parameters of the lens. The reflectance of the lens usually refers to the ratio between the amount of incident light reflected on the surface of the lens and the total amount of incident light. The greater the reflectivity of the lens, the greater the amount of incident light reflected on the surface of the lens, the lower the transmittance, the more stray light is generated, the lower the performance of the lens, and the fewer scenes the lens can be applied.

[0092] The current conventional optimization direction is to set a film layer on the lens surface to reduce the reflectivity of the lens in order to increase the transmittance of the lens. The principle of the film layer reducing the reflectivity of the lens is that when light passes through the interface of materials with different refractive indices, part of the light will be reflected. The film layer on the surface of the lens forms a film layer-lens interface and a film layer-air interface with different refractive indices, so that the light reflected by the lens can be reflected between the film layer-lens interface and the film layer-air interface. At this time, by accurately adjusting the thickness and refractive index of the film layer, the reflected light can interfere inside the film layer, so that the reflected light partially or completely cancels each other, thereby achieving the purpose of reducing the reflectivity and improving the transmittance of the lens.

[0093] The inventors found in their research and experiments that the greater the temperature difference in the environment in which the lens is used (for example, when the lens is used for the transmitting lens or receiving lens of a laser radar, the laser radar will experience high and low temperatures during the test process or use), the greater the probability of film cracks or bulging. The reason is that in order to obtain a refractive index different from that of the lens, the film layer and the lens use different substrates, resulting in different thermal expansion coefficients for the film layer and the lens. The greater the temperature difference in the environment, the greater the difference in changes caused by the thermal expansion of the film layer and the lens, and the greater the stress imposed on the film layer by the lens. When the stress on the film layer exceeds the tensile limit of the film layer, the film layer will crack or bulge.

[0094] As a specific example, refer to Figure 1A to Figure 1F ,in, Figure 1A A schematic diagram of the structure of a lens at room temperature is shown; Figure 1B Shows Figure 1A A top view of Figure 1C Shows Figure 1A Schematic diagram of the structure of the middle lens under high temperature; Figure 1D Shows Figure 1C A top view of Figure 1E Shows Figure 1A Schematic diagram of the structure of the middle lens under low temperature conditions; Figure 1F Shows Figure 1E Top view of the .

[0095] Combination Figure 1A to Figure 1FAs shown, as an example of the structure of a lens, the lens 1 includes: a lens body 11 and a film layer G, wherein the film layer G is arranged on the end face of the lens body 11 , and the thermal expansion coefficient of the film layer G is smaller than the thermal expansion coefficient of the lens body 11 .

[0096] Combination Figure 1A to Figure 1F As shown, when the lens 1 is in a room temperature environment, the size of the end face of the lens body 11 is, for example, 30 mm, and the size is, for example, the lens diameter, and the size of the film layer G is adapted to the size of the end face of the lens body 11; when the lens 1 is in a high temperature environment, since the thermal expansion coefficient of the film layer G is smaller than the thermal expansion coefficient of the lens body 11, the size of the film layer G is smaller than the size of the end face of the lens body 11 at this time, and the lens body 11 drives the film layer G to expand, and the stress borne by the film layer G exceeds the tensile limit of the film layer G, resulting in a film crack problem; when the lens 1 is in a low temperature environment, since the thermal expansion coefficient of the film layer G is smaller than the thermal expansion coefficient of the lens body 11, the size of the film layer G is larger than the size of the end face of the lens body 11 at this time, and the lens body 11 drives the film layer G to contract, and the stress borne by the film layer G exceeds the tensile limit of the film layer G, resulting in a bulging problem.

[0097] Therefore, how to provide an improved technical solution to reduce the probability of film cracking or bulging in the film layer has become an urgent problem to be solved.

[0098] The inventors found in research and experiments that the magnitude of the stress borne by the film layer is related to the size of the film layer. Specifically, the larger the size of the film layer, the greater the stress borne by the film layer, and the smaller the size of the film layer, the smaller the stress borne by the film layer.

[0099] As a specific example, refer to Figure 1A to Figure 1F , Figure 2A to Figure 2F ,in, Figure 2A shows a schematic diagram of the structure of another lens at room temperature; Figure 2B Shows Figure 2A A top view of Figure 2C Shows Figure 2A Schematic diagram of the structure of the middle lens under high temperature; Figure 2D Shows Figure 2C A top view of Figure 2E Shows Figure 2A Schematic diagram of the structure of the middle lens under low temperature conditions; Figure 2F Shows Figure 2E Top view of the .

[0100] Combination Figure 1A to Figure 1F as well as Figure 2A to Figure 2F As shown, Figure 2A to Figure 2F The structure of the lens shown is an example of another lens structure. Figure 1A to Figure 1FThe structure of the lens shown is similar, except that Figure 2A to Figure 2F The end face of the lens body of the lens shown is smaller than Figure 1A to Figure 1F The dimensions of the end faces of the lens bodies of the lenses shown.

[0101] Combination Figure 2A to Figure 2F As shown, when the lens 1 is in a room temperature environment, the size of the end face of the lens body 11 is, for example, 3 mm, and the size is, for example, the lens diameter, and the size of the film layer G is adapted to the size of the end face of the lens body 11; when the lens 1 is in a high temperature environment, the thermal expansion coefficient of the film layer G is smaller than the thermal expansion coefficient of the lens body 11, at this time, the expanded size of the film layer G is smaller than the expanded size of the end face of the lens body, and the lens body 11 drives the film layer G to expand, but no film cracking problem occurs; when the lens 1 is in a low temperature environment, the thermal expansion coefficient of the film layer G is smaller than the thermal expansion coefficient of the lens body 11, at this time, the contracted size of the film layer G is smaller than the contracted size of the end face of the lens body 11, and the lens body 11 drives the film layer G to contract, but no bulging problem occurs.

[0102] Based on the above findings, in order to solve the above technical problems, an embodiment of the present invention provides a method for manufacturing a lens, firstly, fixing the lens body by a coating fixture, then coating the end face of the lens body, and forming a plurality of film layer units on the end face of the lens body, and there are gaps between adjacent film layer units.

[0103] By adopting the above technical solution, the lens body is fixed by a coating fixture, and a plurality of film layer units and gaps between adjacent film layer units are formed on the end surface of the lens body. The magnitude of the stress borne by the film layer unit is related to the size of the film layer unit. By adjusting the gaps between adjacent film layer units, the size of each film layer unit on the end surface of the lens body can be adjusted, so that the stress borne by the film layer unit can be adjusted to below the tensile limit of the film layer unit, thereby reducing the probability of film cracks or bulging in the film layer unit and ensuring the reliability of coating.

[0104] In order to enable those skilled in the art to better understand and implement the embodiments of the present invention, the concepts, schemes, principles and advantages of the embodiments of the present invention are described in detail below with reference to the accompanying drawings and through specific application examples.

[0105] First, an embodiment of the present invention provides a method for manufacturing a lens, referring to Figure 3 , Figure 3 A flow chart of a method for manufacturing a lens is shown. In an embodiment of the present invention, the lens can be manufactured by the following steps:

[0106] Step A, fixing the lens body by a coating fixture.

[0107] Specifically, the lens body is fixed by the coating fixture so that the relative positions of the coating fixture and the lens body remain unchanged.

[0108] In a specific implementation, the type of the lens body can be determined according to specific circumstances. For example, the type of the lens body can be one or more of a biconvex lens, a plano-convex lens, or a concave-convex lens.

[0109] In a specific implementation, the material of the lens body can be determined according to specific circumstances. For example, the material of the lens body can be one or more of plastic, glass or other materials.

[0110] Step B: coating the end surface of the lens body so that a plurality of film layer units are formed on the end surface of the lens body, and gaps are provided between adjacent film layer units.

[0111] Specifically, the end surface of the lens body is coated, and a plurality of film layer units are formed on the end surface of the lens body by a coating fixture, and gaps are provided between adjacent film layer units.

[0112] As an optional implementation, the coating fixture may include a coating part, the shape of which is matched with the end surface of the lens body; the lens body is fixed by the coating fixture, and the end surface of the lens body matched with the shape of the coating part is facing the coating part of the coating fixture.

[0113] As a specific example, the lens body is a double convex lens, the coating part has a concave surface, and the convex surface shape of one end of the lens body is matched with the shape of the concave surface of the coating part, that is, the curved shapes are basically consistent. When the lens body is fixed by a coating fixture, the end face of the lens body whose surface shape is matched with the shape of the coating part is located in the coating part and is arranged opposite to the concave surface of the coating part.

[0114] It should be noted that the shape of the end face of the lens body is adapted to the shape of the coating portion, which may include: the size of the end face of the lens body is adapted to the size of the coating portion.

[0115] As an optional implementation, the coating portion may have a plurality of second hole structures, and the plurality of second hole structures are adapted to the plurality of film layer units.

[0116] Specifically, the end surface of the lens body is coated, and a plurality of film layer units are formed on the end surface of the lens body through a plurality of second hole structures, and there are gaps between adjacent film layer units.

[0117] By adopting the above technical solution, the lens body is fixed by a coating fixture, and a plurality of film layer units that are compatible with the plurality of second hole structures of the coating part of the coating fixture, as well as gaps between adjacent film layer units, are formed on the end surface of the lens body. The magnitude of the stress borne by the film layer unit is related to the size of the film layer unit. By adjusting the gaps between adjacent film layer units, the size of each film layer unit on the end surface of the lens body can be adjusted, so that the stress borne by the film layer unit can be adjusted to below the tensile limit of the film layer unit, thereby reducing the probability of film cracks or bulging in the film layer unit and ensuring the reliability of coating.

[0118] In order to enable those skilled in the art to better understand and implement the method, the manufacturing method of the lens is described in detail below through specific examples and in conjunction with the accompanying drawings.

[0119] As an optional implementation, step A may include the following steps:

[0120] Step A1, fixing the coating fixture by the stage.

[0121] Step A2, fixing the lens body by a coating fixture.

[0122] Specifically, the carrier is a workbench for performing coating operations. By fixing the coating fixture through the carrier, and fixing the lens body through the coating fixture, the relative position of the carrier and the lens body can be kept unchanged, thereby facilitating the subsequent coating of the end face of the lens body.

[0123] As an optional implementation, step B may include the following steps:

[0124] Step B1, coating the end surface of the lens body so that a plurality of connection layer units are formed on the end surface of the lens body, with gaps between adjacent connection layer units, wherein the plurality of connection layer units are adapted to the plurality of second hole structures of the coating portion.

[0125] Step B2, coating the multiple connecting layer units, so that a plurality of film layer units are formed on the end surface of the lens body, wherein the multiple film layer units are matched with the multiple connecting layer units.

[0126] Specifically, the connecting layer unit serves as a connecting structure between the film layer unit and the lens body, and is used to reduce the probability of film cracks or bulging in the film layer unit.

[0127] For example, the connecting layer unit can reduce the probability of film cracks or bulging of the film layer unit by increasing the bonding force between the lens body and the film layer unit. For another example, the connecting layer unit can serve as a buffer layer to reduce the probability of film cracks or bulging of the film layer unit.

[0128] As an optional implementation manner, the thermal expansion coefficient of the connecting layer unit is between the thermal expansion coefficients of the lens body and the film layer unit.

[0129] By adopting the above technical solution, the difference in change caused by thermal expansion between the film layer unit and the connecting layer unit is smaller than the difference in change caused by thermal expansion between the film layer unit and the lens body. By adopting the connecting layer unit as a buffer layer between the lens body and the film layer unit, the stress exerted by the lens body on the film layer unit can be reduced, thereby reducing the probability of film cracks or bulging in the film layer unit.

[0130] In a specific implementation, the end surface of the lens body may include: a first end surface and a second end surface.

[0131] Wherein, the first end face and the second end face are arranged opposite to each other; coating the end face of the lens body may include at least one of the following: coating the first end face; coating the second end face.

[0132] As an optional implementation, the first end surface shape and the second end surface shape are different.

[0133] Accordingly, the coating fixture may include at least one of the following:

[0134] A first coating fixture, wherein the first coating fixture comprises a coating portion having a plurality of second hole structures, and a shape of the coating portion of the first coating fixture is adapted to a shape of a first end surface of the lens body;

[0135] A second coating fixture, wherein the second coating fixture comprises a coating portion having a plurality of second hole structures, and a shape of the coating portion of the second coating fixture is adapted to a shape of a second end surface of the lens body.

[0136] Correspondingly, fixing the lens body by a coating fixture and coating the end surface of the lens body may include at least one of the following: fixing the lens body by a first coating fixture and coating the first end surface of the lens body; fixing the lens body by a second coating fixture and coating the second end surface of the lens body.

[0137] Specifically, different coating fixtures have coating parts of different shapes, and the end faces of the lens body with different surface shapes use different coating fixtures, so that the end face shape of the lens body is matched with the shape of the coating part of the coating fixture.

[0138] It should be noted that the embodiment of the present invention does not specifically limit the relationship between the first end face shape and the second end face shape, and the first end face shape can be the same as the second end face shape. In this case, the first end face and the second end face can be coated respectively by the same coating fixture.

[0139] As an optional implementation, continue to refer to Figure 3 Before executing step A, you can also execute step C:

[0140] Manufacture of coating fixtures.

[0141] Specifically, a coating fixture is manufactured to fix the lens body, and the end surface of the lens body is coated.

[0142] As an optional implementation, step C may include the following steps:

[0143] Step C1, designing the size and distribution of multiple film layer units on the end surface of the lens body;

[0144] Step C2, manufacturing a coating fixture according to the end surface shape of the lens body and the sizes and distribution of a plurality of film layer units preset on the end surface of the lens body.

[0145] Specifically, by designing the size and distribution of multiple film layer units on the end surface of the lens body, the performance parameters of the lens body (for example, transmittance, crack rate or bulging rate) can be optimized; according to the end surface shape of the selected lens body and the size and distribution of multiple film layer units preset on the end surface of the lens body, a coating fixture is manufactured, and the manufactured coating fixture can be adapted to the end surface shape of the selected lens body.

[0146] As an optional implementation, for step C, reference may also be made to the method for manufacturing the coating fixture described in any of the embodiments described later, which will not be described in detail here.

[0147] As an optional implementation, continue to refer to Figure 3 , after executing step B, you can also execute step D:

[0148] Determine whether the quality of the lens is qualified. If so, execute step E; if not, execute step C.

[0149] Specifically, the lens includes a lens body and a plurality of film layer units. After the plurality of film layer units are formed on the end surface of the lens body, it is necessary to determine whether the quality of the lens is qualified, so as to provide a selection basis for the execution of subsequent steps.

[0150] As an optional implementation, step D may include the following steps:

[0151] Step D1, testing the lens to determine the current performance parameters of the lens.

[0152] Step D2, judging whether the quality of the lens is qualified based on the current performance parameters of the lens and the preset performance parameters.

[0153] Specifically, when the current performance parameters of the lens meet the preset performance parameters, it can be determined that the quality of the lens is qualified; when the performance parameters of the lens do not meet the preset performance parameters, it can be determined that the quality of the lens is unqualified.

[0154] By adopting the above technical solution, the current performance parameters of the lens can be determined by testing the lens, so that based on the current performance parameters of the lens and the corresponding preset performance parameters, it can be judged whether the quality of the lens is qualified, providing a basis for subsequent selection.

[0155] In a specific implementation, the type of test items that need to be performed on the lens can be determined according to specific circumstances to obtain corresponding performance parameters.

[0156] For example, the lens may be subjected to high and low temperature testing to obtain the bulging rate and film cracking rate between the film layer unit and the lens body within a preset temperature. For another example, the lens may be subjected to transmittance testing to obtain the transmittance of the lens.

[0157] It should be noted that the embodiments of the present invention do not impose any specific restrictions on the types of inspection items performed on the lens.

[0158] In a specific implementation, the number of items that need to be inspected for the lens can be determined based on specific circumstances.

[0159] For example, the lens may be inspected for one or more items. When all current performance parameters corresponding to the lens meet preset performance parameters, it can be determined that the quality of the lens is qualified.

[0160] As an optional implementation, continue to refer to Figure 3 When the lens is qualified, step E can be executed: ending the lens manufacturing process; when the quality of the lens is unqualified, step C is re-executed and a new coating fixture is used to manufacture the lens.

[0161] As a specific example, when the lens is qualified, the lens manufacturing process is terminated; when the quality of the lens is unqualified, the reasons for the unqualified are analyzed, the sizes and distribution of multiple film layer units on the end face of the lens body are redesigned, and a coating fixture is manufactured based on the end face shape of the lens body and the sizes and distribution of multiple film layer units on the end face of the redesigned lens body, and the lens is manufactured using the new coating fixture.

[0162] In order to enable those skilled in the art to better understand and implement, the manufacturing method of the above-mentioned lens is described in detail below through specific examples in combination with application scenarios and drawings.

[0163] As an optional implementation, refer to Figure 4 , Figure 4The specific flow chart of a method for manufacturing a lens in an embodiment of the present invention is shown. In the embodiment of the present invention, the lens can be manufactured by the following steps:

[0164] S01, designing the size and distribution of a plurality of film layer units on the first end surface of the lens body.

[0165] S02, manufacturing a first coating fixture according to the surface shape of the first end surface of the lens body and the sizes and distribution of multiple film layer units on the first end surface of the lens body.

[0166] S03, fixing the first coating fixture by using a carrier.

[0167] S04, fixing the lens body by using the first coating fixture.

[0168] S05, coating the first end surface of the lens body so that a plurality of connection layer units are formed on the first end surface of the lens body, and gaps are provided between adjacent connection layer units.

[0169] S06, coating the plurality of connection layer units on the first end surface of the lens body, so that a plurality of film layer units are formed on the first end surface of the lens body, with gaps between adjacent film layer units.

[0170] S07, designing the size and distribution of the plurality of film layer units on the second end surface of the lens body.

[0171] S08, manufacturing a second coating fixture according to the shape of the second end surface of the lens body and the sizes and distribution of the plurality of film layer units on the second end surface of the lens body.

[0172] S09, fixing the second coating fixture by using the carrier.

[0173] S10, fixing the lens body by using the second coating fixture.

[0174] S11, coating the second end surface of the lens body so that a plurality of connection layer units are formed on the second end surface of the lens body, and gaps are provided between adjacent connection layer units.

[0175] S12, coating the plurality of connection layer units on the second end surface of the lens body, so that a plurality of film layer units are formed on the second end surface of the lens body, with gaps between adjacent film layer units.

[0176] S13, detecting the transmittance of the lens to determine the current transmittance of the lens.

[0177] S14, determining whether the quality of the lens is qualified; if so, executing step S15, if not, re-executing step S01.

[0178] Specifically, based on the current transmittance of the lens and the preset transmittance, it is determined whether the quality of the lens is qualified, wherein the preset transmittance of the lens is a set target parameter; if the quality of the lens is not suitable, the reasons for the failure are analyzed, and then step S01 is re-executed according to the reasons for the failure.

[0179] S15, performing high and low temperature detection on the lens to determine the current bulging rate and film cracking rate of the lens.

[0180] S16, judging whether the quality of the lens is qualified; if the quality of the lens is qualified, executing step S17, if the quality of the lens is not suitable, re-executing step S01.

[0181] Specifically, based on the current bulging rate and the preset bulging rate of the lens, as well as the current film cracking rate and the preset film cracking rate, it is judged whether the quality of the lens is qualified, wherein the preset bulging rate and the preset film cracking rate of the lens are the set target parameters; if the quality of the lens is unqualified, the reasons for the unqualified are analyzed, and then step S01 is re-executed according to the reasons for the unqualified.

[0182] S17, ending the lens manufacturing process.

[0183] By adopting the above technical solution, gaps between multiple film layer units and adjacent film layer units can be formed on the first end face of the lens body, and gaps between multiple film layer units and adjacent film layer units can be formed on the second end face of the lens body. Through the gaps between adjacent film layer units, the size of each film layer unit on the end face of the lens body can be adjusted, so that the stress borne by the film layer unit can be adjusted to below the tensile limit of the film layer unit, thereby reducing the probability of film cracks or bulging in the film layer unit, and ensuring the reliability of the coating.

[0184] It should be noted that there is no necessary order between some steps in the above embodiments. They can be executed simultaneously or in sequence without causing any contradiction, and the order can be swapped. For example, when actually executing the steps of the method for manufacturing a lens provided in an embodiment of the present invention, steps S07 to S12 can be executed first, and then steps S01 to S06 can be executed; for another example, steps S07 to S12 can be executed in parallel with steps S01 to S06. Specifically, for example, the design of the size and distribution of multiple film layer units on the two end faces of the lens in steps S01 and S07 can be completed in one design; for another example, step S15 can be executed first, and then when the judgment result of step S15 is yes, step S13 can be executed. The embodiment of the present invention does not impose specific restrictions on the order of steps, as long as the lens can be manufactured.

[0185] Correspondingly, an embodiment of the present invention further provides a lens, which may include: a lens body and a plurality of film layer units, wherein the plurality of film layer units are distributed on the end surface of the lens body, and there are gaps between adjacent film layer units.

[0186] By adopting the above technical solution, the magnitude of the stress borne by the film layer unit is related to the size of the film layer unit. The size of each film layer unit on the end face of the lens body can be adjusted by the gap between adjacent film layer units, so that the stress borne by the film layer unit can be adjusted to below the tensile limit of the film layer unit, thereby reducing the probability of film cracks or bulging in the film layer unit.

[0187] As an optional implementation, the plurality of film layer units may be obtained through a coating portion that is adapted to the end surface shape of the lens body and has a plurality of second hole structures.

[0188] In a specific implementation, the type of the lens body can be determined according to specific circumstances. For example, the type of the lens body can be one or more of a biconvex lens, a plano-convex lens, or a concave-convex lens.

[0189] In a specific implementation, the material of the lens body can be determined according to specific circumstances. For example, the material of the lens body can be one or more materials such as plastic and glass.

[0190] As an optional implementation, the lens may further include: a plurality of connecting layer units, the connecting layer units being located between the lens body and the plurality of film layer units, the plurality of connecting layer units being adapted to the plurality of film layer units, and the connecting layer units being suitable for connecting the lens body and the plurality of film layer units.

[0191] In a specific implementation, the end face of the lens body includes a first end face and a second end face, and the first end face is arranged opposite to the second end face; accordingly, the multiple film layer units are distributed on the end face of the lens body, and there is a gap between adjacent film layer units, which may include: the multiple film layer units are distributed on the first end face and / or the second end face of the lens body, and there is a gap between adjacent film layer units on the same end face of the lens body.

[0192] As an optional implementation, a plurality of film layer units are distributed on the first end surface of the lens body, and there are gaps between adjacent film layer units on the first end surface; a plurality of film layer units are distributed on the second end surface of the lens body, and there are gaps between adjacent film layer units on the second end surface.

[0193] As an optional implementation, the lens may be manufactured by the lens manufacturing method in any of the aforementioned embodiments.

[0194] In order to enable those skilled in the art to better understand and implement, the above-mentioned lens is described in detail below through specific examples in combination with application scenarios and drawings.

[0195] As an optional implementation, refer to Figure 5A to Figure 5D ,in, Figure 5A A schematic diagram of the structure of a lens at room temperature according to an embodiment of the present invention is shown; Figure 5B Shows Figure 5A A top view of Figure 5C Shows Figure 5A Schematic diagram of the structure of the middle lens under high temperature; Figure 5D Shows Figure 5A Schematic diagram of the structure of the middle lens under low temperature conditions.

[0196] The lens 1 may include: a lens body 11 and a plurality of film layer units 12, wherein the lens body 11 is a biconvex lens ( Figure 5A to Figure 5D The specific shape of the lens body is not shown in the figure), wherein the lens body 11 includes: a first end face 111 and a second end face 112, a plurality of film layer units 12 are arrayed on the first end face 111, and gaps are provided between adjacent film layer units in each film layer unit 12 arrayed on the first end face 111; a plurality of film layer units 12 are arrayed on the second end face 112, and gaps are provided between adjacent film layer units in each film layer unit 12 arrayed on the second end face 112; the thermal expansion coefficient of the film layer unit 12 is smaller than the thermal expansion coefficient of the lens body 11.

[0197] In practical applications, when the lens is at room temperature, combined with Figure 5A and Figure 5B As shown, there is a gap between adjacent film layer units 12 on the first end surface 111, and there is a gap between adjacent film layer units 12 on the second end surface 112; when the lens is in a high temperature environment, the combination Figure 5C As shown, by reasonably setting the size of each film layer unit 12 on the first end face 111 and the second end face 112, although the first end face 111 and the second end face 112 drive the film layer unit 12 on the corresponding end face to expand, the probability of film cracking of the film layer unit 12 on the corresponding end face can be reduced; when the lens is in a low temperature environment, combined with Figure 5D As shown, by reasonably setting the size of each membrane layer unit on the first end face 111 and the second end face 112, although the first end face 111 and the second end face 112 drive the membrane layer unit 12 on the corresponding end face to shrink, the probability of bulging of the membrane layer unit 12 on the corresponding end face can be reduced.

[0198] As a specific example, when the lens is at room temperature, Figure 5BAs shown, the size of the end face of the lens body 11 is, for example, 30 mm, and the end face of the lens body 11 forms a plurality of 7mm*7mm small-sized membrane layer units 12 in an array at the center, and forms a plurality of small-sized membrane layer units 12 less than 7mm*7mm in an array at the edge, and the interval between adjacent membrane layer units 12 is 0.5 mm.

[0199] It should be noted that the embodiment of the present invention does not impose any specific limitation on the magnitude relationship between the thermal expansion coefficient of the film layer unit and the thermal expansion coefficient of the lens body. For example, the thermal expansion coefficient of the film layer unit may also be greater than the thermal expansion coefficient of the lens body.

[0200] Accordingly, the present invention also provides a method for manufacturing a coating fixture, referring to Figure 6 , Figure 6 A flow chart of a method for manufacturing a coating fixture in an embodiment of the present invention is shown. In the embodiment of the present invention, the coating fixture can be manufactured by the following steps:

[0201] Step M, forming a porous area on the substrate.

[0202] Specifically, the porous region is a region having a plurality of through holes.

[0203] Step N, processing at least part of the porous area into a coating portion, wherein the porous area corresponding to the coating portion has a plurality of first hole structures, and the coating portion has a plurality of second hole structures, and the second hole structures are adapted to the first hole structures.

[0204] Specifically, the first hole structure is a through hole on the porous area, the second hole structure is a through hole on the coating portion, and the second hole structure is formed by processing the matching first hole structure.

[0205] In a specific implementation, the shape of the coating portion is adapted to the shape of the end surface to be coated.

[0206] As an optional implementation, the shape of the coating portion is matched with the end surface shape of the lens body.

[0207] In a specific implementation, the plurality of second hole structures are suitable for forming a plurality of film layer units on the end surface to be coated.

[0208] As an optional implementation, the plurality of second hole structures are suitable for forming a plurality of film layer units on an end face of the lens body whose surface shape matches the shape of the coating portion.

[0209] By adopting the above technical scheme, the porous area corresponding to the coating part has a plurality of first hole structures, and the coating part has a plurality of second hole structures. By processing part of the porous area into the coating part, the plurality of first hole structures can be formed into a plurality of matching second hole structures; by setting the shape of the coating part to match the end face shape of the lens body, it is possible to facilitate the positioning of the relative position between the coating part and the end face of the lens body, thereby improving the accuracy of coating, and at the same time, it is also possible to avoid the coating fixture from scratching the end face of the lens body, preferably coating the end face of the lens body; by using the plurality of second hole structures as coating channels, the coating materials passing through the plurality of second hole structures can be made independent of each other, thereby forming a plurality of film layer units on the end face of the lens body whose surface shape matches the shape of the coating part.

[0210] It should be noted that the shape of the coating portion is adapted to the end surface shape of the lens body, which does not mean that the shape of the coating portion is completely consistent with the end surface shape of the lens body, but means that the deviation between the shape of the coating portion and the end surface shape of the lens body is less than a preset deviation threshold. For example, if the deviation between the curvature of the coating portion and the curvature of the end surface of the lens body is less than a preset curvature deviation threshold, it can be considered that the shape of the coating portion is adapted to the end surface shape of the lens body. Through this setting, the adaptability of the coating portion can be improved.

[0211] In order to enable those skilled in the art to better understand and implement the method, the manufacturing method of the lens is described in detail below through specific examples and in conjunction with the accompanying drawings.

[0212] As an optional implementation, step M may include the following steps:

[0213] Step M1, designing the size and distribution of multiple film layer units on the end surface of the lens body.

[0214] Step M2: forming a porous area on the substrate according to the end surface shape of the lens body and the size and distribution of the plurality of film layer units on the end surface of the lens body.

[0215] By adopting the above technical solution, the performance parameters (for example, transmittance, crack rate or bulging rate) of the lens body can be optimized by designing the size and distribution of multiple film layer units on the end surface of the lens body; the coating fixture is manufactured according to the selected end surface shape of the lens body and the size and distribution of multiple film layer units on the end surface of the lens body, so that the manufactured coating fixture can be adapted to the selected end surface shape of the lens body.

[0216] It should be noted that the design result of step M1 is a plane design adjusted by taking into account the deformation allowance occurring in the process of forming the coating portion. The porous area formed according to the plane design can make the size and distribution of the multiple second hole structures on the formed coating portion after processing compatible with the size and distribution of the multiple film layer units preset on the end face of the lens body.

[0217] As an optional implementation, refer to Figure 7 , Figure 7 The schematic diagram of the structure of a substrate in an embodiment of the present invention is shown. The substrate 2 is provided with a porous area, and a plurality of hole structures are provided in the porous area, wherein the hole structure in the part of the porous area corresponding to the coating part (the porous area within the dotted line) is defined as the first hole structure H1.

[0218] Specifically, by changing the size and distribution of the plurality of first hole structures in the partial porous region corresponding to the coating portion, the size and distribution of the second hole structure on the coating portion can be adjusted.

[0219] As an optional implementation manner, the plurality of hole structures in the partial porous region corresponding to the coating portion are distributed in an array in the porous region.

[0220] As a specific example, combining Figure 7 As shown, the size of the substrate is, for example, 30mm*300mm, the porous area is in a grid shape, a plurality of 7mm*7mm hole structures are arrayed at the center of the porous area, a plurality of hole structures smaller than 7mm*7mm are arrayed at the edge, and the distance between adjacent hole structures is 0.5mm.

[0221] In a specific implementation, the material of the substrate can be determined according to specific circumstances.

[0222] For example, the substrate may be made of one or more of steel, aluminum, plastic or other materials.

[0223] As an optional implementation, continue to refer to Figure 6 After executing step M, you can also execute step O:

[0224] The area outside the porous area corresponding to the coating part on the substrate is processed into a fixing part, and the fixing part is located at the edge of the coating part and forms an angle with the edge of the coating part.

[0225] Specifically, the fixing portion is used to fix the coating fixture.

[0226] As an optional implementation, step O and step N may be performed simultaneously.

[0227] Specifically, while at least a part of the porous area is processed into the coating portion, at least an area outside the porous area corresponding to the coating portion on the substrate is processed into the fixing portion.

[0228] It should be noted that the execution order of step O and step N in the embodiment of the present invention is not specifically limited. For example, after executing step M, step O may be executed first, and then step N may be executed. For another example, after executing step M, step N may be executed first, and then step O may be executed. The embodiment of the present invention does not specifically limit the order of steps, as long as the coating fixture can be manufactured.

[0229] In a specific implementation, one or more of the following processing methods can be used to form a porous area on the substrate according to specific circumstances.

[0230] For example, the porous area may be formed on the substrate by one or more of laser cutting, mechanical punching or other processing methods.

[0231] In a specific implementation, one or more of the following processing methods may be used according to specific circumstances to process at least a portion of the porous area into a coating portion.

[0232] For example, mechanical stamping, injection molding or one or more other processing methods may be used to process at least a portion of the porous area into a coating portion.

[0233] In a specific implementation, one or more of the following processing methods may be used according to specific circumstances to process at least the area outside the porous area corresponding to the coating portion on the substrate into a fixed portion.

[0234] For example, mechanical stamping, injection molding or one or more other processing methods may be used to process at least the area outside the porous area corresponding to the coating portion on the substrate into the fixed portion.

[0235] In order to enable those skilled in the art to better understand and implement, the manufacturing method of the aforementioned coating fixture is described in detail below through specific examples in combination with application scenarios and drawings.

[0236] As an optional implementation, refer to Figure 8 , Figure 8 The specific flow chart of a method for manufacturing a coating fixture in an embodiment of the present invention is shown. In the embodiment of the present invention, the coating fixture can be manufactured by the following steps:

[0237] Step X, designing the size and distribution of the plurality of film layer units on the end surface of the lens body.

[0238] Step Y: forming a porous area on the substrate according to the end surface shape of the lens body and the size and distribution of multiple film layer units on the end surface of the lens body.

[0239] Step Z, processing at least part of the porous area into a coating portion, wherein the porous area corresponding to the coating portion has a plurality of first hole structures, and the coating portion has a plurality of second hole structures, and the second hole structures are adapted to the first hole structures; at the same time, processing the area outside the porous area corresponding to the coating portion on the substrate into a fixed portion, wherein the fixed portion is located at the edge of the coating portion and forms an angle with the edge of the coating portion.

[0240] By adopting the above technical scheme, the coating fixture can be fixed by the fixing part so that the relative position of the coating fixture remains unchanged, thereby improving the accuracy of coating; by setting the shape of the coating part to match the end face shape of the lens body, it is possible to facilitate the positioning of the relative position between the coating part and the end face of the lens body, thereby improving the accuracy of coating; by using the multiple second hole structures as coating channels, the coating materials passing through the multiple second hole structures can be made independent of each other, thereby forming multiple film layer units on the end face of the lens body whose surface shape matches the shape of the coating part.

[0241] Correspondingly, an embodiment of the present invention further provides a coating fixture, which may include: a coating part, the coating part having a plurality of second hole structures, wherein the plurality of second hole structures of the coating part are adapted to a plurality of film layer units on the end face to be coated.

[0242] As an optional implementation, the plurality of second hole structures of the coating portion are adapted to a plurality of film layer units preset on the end surface of the lens body.

[0243] Specifically, by using the multiple second hole structures as coating channels, the coating materials passing through the multiple second hole structures can be made independent of each other, so that a plurality of matching film layer units can be formed on the end surface of the lens body.

[0244] In a specific implementation, the shape of the coating portion is adapted to the shape of the end surface to be coated.

[0245] As an optional implementation, the shape of the coating portion is matched with the end surface shape of the lens body.

[0246] Specifically, by setting the shape of the coating portion to match the end surface shape of the lens body, the relative positioning between the coating portion and the end surface of the lens body can be facilitated, thereby improving the accuracy of coating; at the same time, it can also prevent the coating fixture from scratching the end surface of the lens body.

[0247] As an optional implementation, the coating fixture may further include: a fixing portion, wherein the relative position of the fixing portion and the coating portion remains unchanged.

[0248] Specifically, the relative positions of the fixing portion and the coating portion remain unchanged, and therefore, the coating portion can be fixed by fixing the fixing portion.

[0249] In a specific implementation, the connection type between the fixing portion and the coating portion may be determined according to specific circumstances.

[0250] For example, the connection type between the fixing portion and the coating portion may include one or more connection types such as integral molding, welding or bonding.

[0251] As an optional implementation manner, the fixing portion is located at an edge of the coating portion and forms an angle with the edge of the coating portion.

[0252] Specifically, by arranging the fixing portion at the edge of the coating portion, the fixing portion can be kept away from the coating path of the coating portion, thereby reducing the interference of the fixing portion on the coating process.

[0253] As an optional implementation, the coating portion is in a grid shape.

[0254] As an optional implementation, the plurality of second hole structures are distributed in an array on the coating portion.

[0255] As a specific example, the plurality of second hole structures are distributed on the coating portion in a centrally symmetrical array.

[0256] As an optional implementation, the coating fixture may be manufactured by the coating fixture manufacturing method in any of the aforementioned embodiments.

[0257] In order to enable those skilled in the art to better understand and implement, the manufacturing method of the aforementioned coating fixture is described in detail below through specific examples in combination with application scenarios and drawings.

[0258] As an optional implementation, refer to Fig. 9 and Fig.10 ,in, Fig. 9 FIG. 1 shows a schematic structural diagram of a coating fixture in an embodiment of the present invention. Fig.10 A schematic diagram of a specific application scenario of a coating fixture in an embodiment of the present invention is shown.

[0259] The coating fixture 3 may include: a coating portion 31 and a fixing portion 32, wherein the fixing portions 32 are multiple in number, and the multiple fixing portions 32 are distributed in an array at the edge of the coating portion 31, and the fixing portions 32 form an angle with the edge of the coating portion 31. The coating portion 31 is a curved surface structure having a plurality of second hole structures H2, and the plurality of second hole structures H2 are distributed in a centrally symmetrical array on the coating portion 31, wherein the centrally symmetrical point is the center point of the curved surface structure.

[0260] The shape of the coating portion 31 matches the end surface of the lens body 11 , and the end surface of the lens body 11 , whose end surface matches the shape of the coating portion 31 , faces the concave surface of the coating portion 31 .

[0261] Correspondingly, an embodiment of the present invention also provides a coating device, which may include: a coating fixture and a carrier, the coating fixture may include: a coating part and a fixing part, the coating part is used to coat the end face to be coated, and the fixing part is used to fix the coating part on the carrier.

[0262] Specifically, the carrier is a workbench for performing coating operations, and the coating unit is fixed to the carrier by a fixing unit, so that the relative position of the carrier and the coating unit remains unchanged, thereby improving the accuracy of subsequent coating.

[0263] As an optional implementation method, the method of fixing the carrier and the coating fixture can be determined according to specific circumstances.

[0264] For example, the carrier and the coating fixture may be fixedly connected by screw connection, clamping or one or more other connection methods.

[0265] As an optional implementation, the coating fixture may be the coating fixture described in any of the aforementioned embodiments.

[0266] As an optional implementation, the carrier may include: a coating hole, wherein the coating hole is adapted to the coating portion.

[0267] Specifically, the coating portion can be embedded in the coating hole through the coating hole matched with the coating portion, and because the coating hole is a through hole, the coating material can move from bottom to top along the coating hole to the coating portion.

[0268] In a specific implementation, the number of the coating hole may be at least one.

[0269] As an optional implementation, there may be multiple coating holes on the carrier.

[0270] Specifically, by arranging a plurality of coating holes on the carrier, a plurality of coating fixtures can be fixed at the same time, so that a plurality of end faces to be coated can be coated in batches, thereby improving the coating efficiency.

[0271] As an optional implementation, a plurality of coating holes are distributed in an array on the carrier.

[0272] As an optional implementation, the carrier may further include: a step groove, the step groove is opened at the end of the coating hole, and the step groove is used to fix the fixing part.

[0273] As a specific example, the step groove is coaxially arranged with the coating hole, and the fixing portion is fixed to the bottom surface of the step groove.

[0274] In order to enable those skilled in the art to better understand and implement, the manufacturing method of the aforementioned coating fixture is described in detail below through specific examples in combination with application scenarios and drawings.

[0275] As an optional implementation, refer to Fig.11 and Fig.12 ,in, Fig.11 FIG. 1 shows a schematic structural diagram of a coating device in an embodiment of the present invention. Fig.12 A schematic structural diagram of a carrier in an embodiment of the present invention is shown.

[0276] The coating device 5 may include: a carrier 4 and a plurality of coating fixtures 3, wherein the carrier 4 includes: a plurality of coating holes 41 distributed in an array, the plurality of coating holes 41 are adapted to the plurality of coating fixtures 3, and a step groove 42 is provided at the end of the coating hole 41; the coating fixture 3 includes: a coating portion 31 and a fixing portion 32, the fixing portion 32 is located at the edge of the coating portion 31, and the fixing portion 32 forms an angle with the edge of the coating portion 31, and the coating portion 31 is a curved surface structure; the coating portion 31 is embedded in the coating hole 41, and the fixing portion 32 is fixed to the bottom surface of the step groove 42 by screws.

[0277] In practical applications, the lens body is placed above the coating portion, and the coating material can be applied from bottom to top through the coating hole to coat the end surface of the lens body.

[0278] It can be understood that the above describes multiple implementation schemes provided by the embodiments of the present invention. The optional implementation methods and specific examples introduced in each implementation scheme can be combined and cross-referenced with each other without conflict, thereby extending a variety of possible implementation schemes, which can all be considered as the implementation schemes disclosed and open to the public by the present invention.

[0279] Although the embodiments of the present invention are disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A method for manufacturing a lens, characterized in that: include: Fixing the lens body by a coating fixture, wherein the coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion is adapted to the end surface shape of the lens body; The end surface of the lens body is coated so that a plurality of film layer units are formed on the end surface of the lens body, with gaps between adjacent film layer units, wherein the plurality of film layer units are matched with the plurality of second hole structures of the coating portion.

2. The manufacturing method according to claim 1, characterized in that: The coating of the end surface of the lens body comprises: The end surface of the lens body is coated on the side of the coating fixture away from the lens body.

3. The manufacturing method according to claim 1, characterized in that: The coating of the end surface of the lens body so as to form a plurality of film layer units on the end surface of the lens body comprises: Coating the end surface of the lens body so that a plurality of connection layer units are formed on the end surface of the lens body, with gaps between adjacent connection layer units, wherein the plurality of connection layer units are adapted to the plurality of second hole structures of the coating portion; The plurality of connection layer units are coated so that a plurality of film layer units are formed on the end surface of the lens body, wherein the plurality of film layer units are matched with the plurality of connection layer units.

4. The manufacturing method according to claim 1, characterized in that: The method of fixing the lens body by means of a coating fixture comprises: Fix the coating fixture by the stage; Fix the lens body by the coating fixture.

5. The manufacturing method according to claim 1, characterized in that: The end surface of the lens body includes: a first end surface and a second end surface, wherein the first end surface is arranged opposite to the second end surface; The coating fixture comprises a coating portion having a plurality of second hole structures, the shape of the coating portion being adapted to the end surface shape of the lens body, and comprising at least one of the following: The coating fixture is a first coating fixture, the first coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion of the first coating fixture is adapted to the shape of the first end surface of the lens body; The coating fixture is a second coating fixture, and the second coating fixture comprises a coating portion having a plurality of second hole structures, and the shape of the coating portion of the second coating fixture is adapted to the shape of the second end surface of the lens body.

6. The manufacturing method according to claim 5, characterized in that: Fixing the lens body by a coating fixture and coating the end surface of the lens body includes at least one of the following: Fixing the lens body by a first coating fixture, and coating the first end surface of the lens body; The lens body is fixed by a second coating fixture, and the second end surface of the lens body is coated.

7. The manufacturing method according to claim 1, characterized in that: Before fixing the lens body by the coating fixture, the method further comprises: Manufacture of coating fixtures.

8. The manufacturing method according to any one of claims 1 to 7, characterized in that: After coating the end surface of the lens body, the method further includes: Determine whether the quality of the lens is qualified; When the quality of the lens is unqualified, the coating jig is remanufactured and the lens is manufactured using the new coating jig.

9. The manufacturing method according to claim 8, characterized in that: The step of judging whether the quality of the lens is qualified comprises: Based on the current performance parameters of the lens and the preset performance parameters, determine whether the quality of the lens is qualified; When the current performance parameters of the lens meet the preset performance parameters, the quality of the lens is determined to be qualified; when the current performance parameters of the lens do not meet the preset performance parameters, the quality of the lens is determined to be unqualified.

10. The manufacturing method according to claim 9, characterized in that: The performance parameters of the lens include at least one of the following: Transmittance; The bulging rate between the film unit and the lens body within the preset temperature range; The film crack rate between the film layer unit and the lens body within a preset temperature range.

11. A lens, characterized in that: include: Lens body; A plurality of film layer units, wherein the plurality of film layer units are distributed on the end surface of the lens body, and there are gaps between adjacent film layer units; The plurality of film layer units are obtained through a coating portion which is adapted to the end surface shape of the lens body and has a plurality of second hole structures.

12. The lens according to claim 11, characterized in that The end surface of the lens body includes a first end surface and a second end surface, and the first end surface is arranged opposite to the second end surface; The plurality of film layer units are distributed on the end surface of the lens body, and there is a gap between adjacent film layer units, including: The plurality of film layer units are distributed on the first end surface and / or the second end surface of the lens body, and there is a gap between adjacent film layer units on the same end surface of the lens body.

13. The lens according to claim 11, characterized in that Also includes: The plurality of connection layer units are located between the lens body and the plurality of film layer units. The plurality of connection layer units are matched with the plurality of film layer units and are suitable for connecting the lens body and the plurality of film layer units.

14. The lens according to claim 11, characterized in that The substrate of the lens includes at least one of the following: plastic; Glass.

15. A method for manufacturing a coating fixture, characterized in that: include: forming a porous region on a substrate; At least a part of the porous area is processed into a coating portion, wherein the porous area corresponding to the coating portion has a plurality of first hole structures, and the shape of the coating portion is adapted to the end face of the lens body; Wherein, the coating portion has a plurality of second hole structures, and the plurality of second hole structures are adapted to the plurality of first hole structures; the plurality of second hole structures are suitable for forming a plurality of film layer units on the end face of the lens body.

16. The manufacturing method according to claim 15, characterized in that: The forming of a porous region on a substrate comprises: A porous area is formed on the substrate according to the end surface shape of the lens body and the sizes and distribution of a plurality of film layer units preset on the end surface of the lens body.

17. The manufacturing method according to claim 15, characterized in that: The step of forming a porous region on the substrate comprises: A porous region is formed on the substrate by at least one of the following processing methods: Laser cutting; Mechanical stamping; The step of processing at least a portion of the porous area into a coating portion comprises: At least a portion of the porous area is processed into a coating portion by at least one of the following processing methods: Mechanical stamping; injection molding.

18. The manufacturing method according to any one of claims 15 to 17, characterized in that: Also includes: The area outside the porous area corresponding to the coating part on the substrate is processed into a fixing part, and the fixing part is located at the edge of the coating part and forms an angle with the edge of the coating part.

19. The manufacturing method according to claim 18, characterized in that: The step of processing at least the area outside the porous area corresponding to the coating portion on the substrate into the fixed portion comprises: While at least a part of the porous area is processed into the coating portion, at least an area outside the porous area corresponding to the coating portion on the substrate is processed into a fixing portion.

20. A coating fixture, characterized in that: include: a coating portion, wherein the coating portion has a plurality of second hole structures; The shape of the coating part of the coating fixture is matched with the end surface shape of the lens body, and the multiple second hole structures of the coating part are matched with the multiple film layer units on the end surface of the lens body.

21. The coating fixture according to claim 20, characterized in that: Also includes: A fixing portion, wherein the fixing portion is located at an edge of the coating portion and forms an angle with the edge of the coating portion.

22. A coating device, characterized in that: include: The coating fixture as claimed in claim 20 or 21; The carrier is suitable for fixing the coating fixture.

23. The coating device according to claim 22, characterized in that: The carrier comprises: A coating hole, in which the coating portion of the coating fixture is embedded; A step groove, wherein the step groove is opened at the end of the coating hole; The fixing part of the coating fixture is fixed on the bottom surface of the step groove.

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