CN111103640B - Fresnel lens metal mold manufacturing method - Google Patents

Abstract

Translated fromChinese

本发明提供了一种菲涅尔透镜金属模具制作方法，该方法包括以下步骤：步骤S1、提供一个单穴母模；步骤S2、将第一塑料软模板盖设于单穴母模的第一菲涅尔结构槽，制成菲涅尔软模板；步骤S3、将多个菲涅尔软模板分别固定装设于第二塑料软模板中，以获得特征软模板；步骤S4、对特征软模板的配置有菲涅尔结构的一侧进行导电化处理，形成一层金属层；步骤S5、对导电化处理后的特征软模板的配置有金属层的一侧进行电铸处理，形成金属电铸层，将特征软模板与金属电铸层脱模以获得菲涅尔透镜金属模具。与相关技术相比，本发明的菲涅尔透镜金属模具制作方法制作成本低且加工精度高。

The present invention provides a method for manufacturing a Fresnel lens metal mold. The method includes the following steps: step S1, providing a single-cavity master mold; step S2, covering a first plastic soft template on the first part of the single-cavity master mold Fresnel structure groove is made into a Fresnel soft template; step S3, a plurality of Fresnel soft templates are respectively fixed and installed in the second plastic soft template to obtain a characteristic soft template; step S4, the characteristic soft template The side configured with the Fresnel structure is subjected to conductive treatment to form a layer of metal layer; step S5, the side configured with the metal layer of the feature soft template after the conductive treatment is subjected to electroforming treatment to form metal electroforming layer, the feature soft template is demolded with the metal electroformed layer to obtain the Fresnel lens metal mold. Compared with the related art, the manufacturing method of the Fresnel lens metal mold of the present invention has low manufacturing cost and high processing precision.

Description

Fresnel lens metal mold manufacturing method

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of optical lens manufacturing, in particular to a manufacturing method of a Fresnel lens metal mold.

[ background of the invention ]

In the field of optical lenses, the fresnel lens has good optical performance while having the characteristics of lightness, thin thickness and the like, so that the fresnel lens is widely applied to various optical application scenes. The mold for manufacturing and producing the fresnel lens also becomes a key point of research in the industry, wherein in order to improve the production efficiency of the fresnel lens, a metal mold for manufacturing the fresnel lens with a plurality of fresnel structures is often required.

The manufacturing method of the Fresnel lens metal mold in the related art comprises the following three steps:

firstly, a diamond processing method: processing the metal base material in a diamond turning mode to manufacture a plurality of single-hole Fresnel lens female dies, and splicing the plurality of single-hole Fresnel lens female dies into a whole-plate multi-hole Fresnel lens metal die, but the diamond processing cost is high;

secondly, photoetching: the metal base material is processed by using photoetching equipment to obtain a full-page multi-cavity Fresnel lens metal mold, but the photoetching equipment is expensive, so that the processing cost is high;

thirdly, an electroforming replication method: firstly, a single-cavity Fresnel lens female die is processed, a plurality of single-cavity Fresnel lens female dies are copied by adopting an electroforming copying method, and the plurality of single-cavity Fresnel lens female dies are spliced to obtain a full-page multi-cavity Fresnel lens metal die.

In summary, in the related art, the three methods cannot simultaneously satisfy two conditions of low processing cost and high precision of the metal mold for the fresnel lens with multiple fresnel structures.

Therefore, there is a need to provide a new method for manufacturing a metal mold for a fresnel lens to solve the above-mentioned problems.

[ summary of the invention ]

The invention aims to provide a method for manufacturing a Fresnel lens metal mold with low manufacturing cost and high processing precision.

In order to achieve the above purpose, the present invention provides a method for manufacturing a fresnel lens metal mold, comprising the following steps:

step S1, providing a single-cavity female die; the single-cavity female die comprises a main body part and a first Fresnel structure groove formed in the main body part;

step S2, covering a first plastic soft template on the first Fresnel structure groove of the single-hole female die to manufacture a Fresnel soft template; the Fresnel soft template comprises a Fresnel structure matched with the first Fresnel structure groove;

step S3, respectively fixing and installing the Fresnel soft templates in second plastic soft templates to obtain characteristic soft templates; the second plastic soft template comprises a plurality of limiting tool holes for installing the Fresnel soft template, the limiting tool holes are arranged at intervals, and the limiting tool holes and the Fresnel soft template are arranged in a one-to-one correspondence manner;

step S4, conducting treatment is carried out on one side, provided with the Fresnel structure, of the characteristic soft template to form a metal layer;

step S5, performing electroforming treatment on the side, provided with the metal layer, of the feature soft template after the electric conduction treatment to form a metal electroforming layer, and demolding the feature soft template and the metal electroforming layer to obtain a Fresnel lens metal mold; the Fresnel lens metal mold comprises a plurality of second Fresnel structure grooves which are arranged at intervals, and the second Fresnel structure grooves are matched with the Fresnel structures.

Preferably, the step S2 specifically includes the following sub-steps:

step S21, covering the first plastic soft template on the single-hole female die and completely covering the first Fresnel structure groove;

step S22, heating the single-cavity female die to a first preset temperature to soften the first plastic soft die plate;

step S23, continuously applying pressure to the first plastic soft template within a preset time, so that the first plastic soft template after being heated and softened completely fills the first fresnel structure groove;

step S24, cooling the temperature of the single-cavity female die to a second preset temperature, and taking out the first plastic soft template to obtain the Fresnel soft template; wherein the second preset temperature is less than the first preset temperature.

Preferably, the first preset temperature is between 80 ℃ and 150 ℃; the preset time is 10-30 minutes; the second preset temperature is less than or equal to 50 ℃; the applied pressure was 200N.

Preferably, the step S3 specifically includes: step S31, attaching an electrostatic film to one side of the second plastic soft template;

step S32, respectively placing the Fresnel soft templates in the limiting tool holes, and enabling the Fresnel structure surface of each Fresnel soft template to face the electrostatic film;

step S33, gluing the surfaces of the Fresnel soft templates opposite to the Fresnel structure surfaces of the Fresnel soft templates to fix the Fresnel soft templates and the second plastic soft templates;

and step S34, removing the electrostatic film to obtain the characteristic soft template.

Preferably, the step S32 further includes: and cutting the Fresnel soft template to enable the overall dimension of the Fresnel soft template to be matched with the limiting tool hole.

Preferably, in step S32, when the fresnel soft template is cut, the fresnel structure is located at the center of the fresnel soft template.

Preferably, in step S4, the method of the conductive treatment is an electrodeposition manufacturing process.

Preferably, the first plastic soft template comprises any one of polycarbonate, polyvinyl chloride and organic glass.

Preferably, the second plastic soft template comprises any one of polycarbonate, polyvinyl chloride and organic glass.

Preferably, the thickness of the single-cavity female die is 8mm, and the diameter of the first Fresnel structure groove is 100 mm.

Preferably, the thickness of the first plastic soft template and the thickness of the second plastic soft template are both 1 mm.

Preferably, in step S4, the metal layer is Ni and has a thickness of 100 nm.

Preferably, in the step S5, the metal electroformed layer is Ni having a thickness of less than 500 μm.

Compared with the prior art, the method for manufacturing the Fresnel lens metal mold only needs to process a single-cavity female mold, the single-cavity female mold can be used for continuously manufacturing a plurality of first plastic soft templates into a plurality of Fresnel soft templates respectively, the Fresnel soft templates are fixedly arranged in second plastic soft templates respectively to obtain the characteristic soft templates, the side, provided with the Fresnel structures, of the characteristic soft templates is subjected to electric conduction treatment to form a metal layer, the side, provided with the metal layer, of the characteristic soft templates after the electric conduction treatment is subjected to electric casting treatment to form a metal electric casting layer, the characteristic soft templates and the metal electric casting layer are demolded to obtain the Fresnel lens metal mold, namely, the Fresnel lens metal mold is manufactured in a multi-cavity simultaneous electric casting mode, so that the method can ensure the processing precision, the manufacturing cost is reduced.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic flow chart of a Fresnel lens metal mold manufacturing method according to the present invention;

FIG. 2 is a schematic flowchart of step S2 in FIG. 1;

FIG. 3 is a detailed flowchart of step S3 in FIG. 1;

FIG. 4 is a schematic diagram of the first plastic soft template and the single-cavity female mold of step S21 in FIG. 2;

FIG. 5 is a schematic view of the first plastic soft template of step S22 of FIG. 2 mated with a heated single cavity master;

fig. 6 is a schematic view illustrating the first plastic film board pressed at step S23 in fig. 2;

fig. 7 is a schematic diagram of the fresnel soft template taken out in step S24 in fig. 2;

FIG. 8 is a schematic cross-sectional view of a Fresnel soft template of the present invention;

FIG. 9 is a schematic view of the Fresnel soft template and the second soft template in step S32 of FIG. 3;

FIG. 10 is a schematic cross-sectional view of the Fresnel soft template and the second soft template of FIG. 9;

fig. 11 is a schematic view of the fresnel soft template and the second soft template in step S33 in fig. 3 after being glued;

FIG. 12 is a schematic cross-sectional view of the Fresnel soft template and the second soft template of FIG. 11 after being glued;

FIG. 13 is a schematic structural diagram of the characteristic soft template of step S34 in FIG. 3;

FIG. 14 is a schematic cross-sectional view of the featured soft template of FIG. 13;

FIG. 15 is a schematic view of the metal electroformed layer and the featured soft template of step S5 of FIG. 1;

FIG. 16 is a schematic cross-sectional view of the metal electroformed layer and the featured soft template of FIG. 15;

fig. 17 is a schematic structural view of a fresnel lens metal mold.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-17, the present invention provides a method for manufacturing a fresnel lens metal mold, including the following steps:

in step S1, a one-hole master mold 1 is provided.

Specifically, in step S1, the one-cavity master mold 1 includes amain body 11 and a first fresnel-structure groove 10 formed in themain body 11.

In order to ensure the precision of the single-cavity master mold 1, in the present embodiment, a metal substrate is machined into the single-cavity master mold 1 by diamond turning, and in essence, one side of the metal substrate is turned to form a firstfresnel structure groove 10 in themain body 11 of the single-cavity master mold 1, and the shape of the firstfresnel structure groove 10 is not limited, and may be specifically designed according to the specific structure of the fresnel lens to be actually manufactured.

In order to satisfy the processing conditions of the hot press molding process, the thickness of the single-cavity female die 1 is 5mm to 10mm, and the diameter of the firstfresnel structure groove 10 is less than or equal to 200 mm. For example, in the present embodiment, the thickness of the one-cavity master mold 1 is preferably 8mm, and the diameter of the first fresnel-structure groove 10 is preferably 100 mm.

Step S2, covering the first plasticsoft template 2 on the firstfresnel structure groove 10 of the single-cavity female die 1 to form a fresnelsoft template 2 a.

Specifically, in the step S2, the fresnelsoft template 2a includes thefresnel structure 21a matched with the first fresnel-structure groove 10.

Further, the step S2 specifically includes the following sub-steps:

step S21, covering the first plasticsoft template 2 on the single-cavity female die 1 and completely covering the firstfresnel structure groove 10.

Step S22, heating the single-cavity female die 1 to a first preset temperature to soften the first plasticsoft template 2; wherein the first preset temperature is between 80 ℃ and 150 ℃.

Step S23, continuously applying pressure to the first plasticsoft template 2 by thehot press board 3 within a preset time by the hot press machine, so that the first plasticsoft template 2 after being heated and softened completely fills the firstfresnel structure groove 10; the preset time is 10-30 minutes, and the preferable pressure applied to the first plasticsoft template 2 is 200N.

Step S24, cooling the temperature of the single-cavity female die 1 to a second preset temperature, and taking out the first plasticsoft template 2 to obtain the Fresnelsoft template 2 a; wherein the second preset temperature is lower than the first preset temperature, and the second preset temperature is lower than or equal to 50 ℃.

After the step S2, the step S3 is preceded by the following preprocessing steps:

cutting the second plasticsoft template 4 to form a plurality of limiting tool holes 40 on the second plasticsoft template 4;

and cutting the Fresnelsoft template 2a to enable the outline dimension of the Fresnelsoft template 2a to be matched with the limitingtool hole 40. For example, the fresnelsoft template 2a is cut by a laser cutting method or a linear cutting method, so as to ensure that thefresnel structure 21a is located at the geometric center of the fresnelsoft template 2 a.

Step S3, the fresnelsoft templates 2a are respectively fixed and installed in the second plasticsoft template 4 to obtain the characteristicsoft template 4 a.

Specifically, in the step S3, the second plasticsoft template 4 includes a plurality of limiting tool holes 40 for installing the fresnelsoft template 2a, the limiting tool holes 40 are arranged at intervals, and the limiting tool holes 40 are arranged in one-to-one correspondence with the fresnelsoft template 2 a.

Further, the step S3 specifically includes the following sub-steps:

and step S31, attaching theelectrostatic film 5 to one side of the second plasticsoft template 4.

Step S32, placing the plurality of fresnelsoft templates 2a in the plurality of limiting tool holes 40, respectively, and making the fresnel structure surface of the fresnelsoft templates 2a face theelectrostatic film 5, where the fresnel structure surface is used as the front surface of the fresnelsoft templates 2 a.

Specifically, the step S32 further includes: cutting the Fresnelsoft template 21a to enable the outline dimension of the Fresnelsoft template 21a to be matched with the limitingtool hole 40; preferably, in the step S32, when the fresnelsoft template 2a is cut, thefresnel structure 21a is located at the center of the fresnelsoft template 2a, so that the positioning accuracy of thefresnel structure 21a mounted on the second plasticsoft template 4 is effectively ensured.

Step S33, gluing the surfaces of the plurality of fresnelsoft templates 2a opposite to the fresnel structure surface, that is, forming aglue layer 6 on one side of the back surface of the fresnelsoft template 2a for bonding the fresnelsoft template 2a and the second plasticsoft template 4, wherein theglue layer 6 fixes the plurality of fresnelsoft templates 2a and the second plasticsoft template 4.

And step S34, removing theelectrostatic film 5 to obtain the characteristicsoft template 4 a.

Step S4, conducting the characteristicsoft template 4a on the side where thefresnel structure 2a is disposed, to form a metal layer.

Specifically, in step S4, the method of the electrical conduction treatment is an electrodeposition manufacturing process;

further, the thickness of the metal layer is not limited, for example, in the present embodiment, the metal layer is Ni, and the thickness thereof is 100 nm; of course, the thickness of the metal layer can be specifically set according to actual conditions.

Step S5, performing electroforming on the side, where the metal layer is arranged, of the featuresoft template 4a after the conductive processing to form ametal electroformed layer 7, and demolding the featuresoft template 4a and themetal electroformed layer 7 to obtain a fresnellens metal mold 7 a; the fresnellens metal mold 7a includes a plurality of secondfresnel structure grooves 71a arranged at intervals, and the second fresnel structure grooves are matched with the fresnel structures.

Specifically, the thickness of themetal electroformed layer 7 is not limited, and in the step S5, themetal electroformed layer 7 is Ni having a thickness of less than 500 μm; of course, the thickness of the metal layer can be specifically set according to actual conditions.

It is worth mentioning that the materials of the first plasticsoft template 2 and the second plasticsoft template 4 are not limited, and the first plasticsoft template 2 and the second plasticsoft template 4 are any one of Polycarbonate (PC), polyvinyl chloride (PVC) and organic glass (PMMA), and in this embodiment, the materials of the two are preferably organic glass (PMMA); in addition, the thicknesses of the first plasticsoft template 2 and the second plasticsoft template 4 are also not limited, and in the present embodiment, the thicknesses of the first plasticsoft template 2 and the second plasticsoft template 4 are both 1 mm; of course, the material and thickness of the first plasticsoft template 2 and the second plasticsoft template 4 can be specifically set according to the actual manufacturing requirement.

Compared with the prior art, the method for manufacturing the Fresnel lens metal mold only needs to process a single-cavity female mold, the single-cavity female mold can be used for continuously manufacturing a plurality of first plastic soft templates into a plurality of Fresnel soft templates respectively, the Fresnel soft templates are fixedly arranged in second plastic soft templates respectively to obtain the characteristic soft templates, the side, provided with the Fresnel structures, of the characteristic soft templates is subjected to electric conduction treatment to form a metal layer, the side, provided with the metal layer, of the characteristic soft templates after the electric conduction treatment is subjected to electric casting treatment to form a metal electric casting layer, the characteristic soft templates and the metal electric casting layer are demolded to obtain the Fresnel lens metal mold, namely, the Fresnel lens metal mold is manufactured in a multi-cavity simultaneous electric casting mode, so that the method can ensure the processing precision, the manufacturing cost is reduced.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims (12)

Translated fromChinese

1.一种菲涅尔透镜金属模具制作方法，其特征在于，该方法包括以下步骤：1. a method for making a Fresnel lens metal mold, characterized in that the method comprises the following steps:步骤S1、提供一个单穴母模；其中，所述单穴母模包括主体部以及形成于所述主体部的第一菲涅尔结构槽；Step S1, providing a single-cavity master mold; wherein, the single-cavity master mold includes a main body part and a first Fresnel structure groove formed in the main body part;步骤S2、将第一塑料软模板盖设于所述单穴母模的所述第一菲涅尔结构槽，制成菲涅尔软模板；其中，所述菲涅尔软模板包括与所述第一菲涅尔结构槽匹配的菲涅尔结构；Step S2, cover the first plastic soft template on the first Fresnel structure groove of the single-cavity master mold to make a Fresnel soft template; wherein, the Fresnel soft template includes and the The Fresnel structure matched with the first Fresnel structure groove;步骤S3、将多个所述菲涅尔软模板分别固定装设于第二塑料软模板中，以获得特征软模板；其中，所述第二塑料软模板包括多个用于装设所述菲涅尔软模板的限位工装孔，所述限位工装孔贯穿所述第二塑料软模板，多个所述限位工装孔相互间隔设置，且所述限位工装孔与所述菲涅尔软模板一一对应设置；所述S3具体包括：步骤S31、将所述第二塑料软模板的一侧贴设静电膜；步骤S32、将多个所述菲涅尔软模板分别放置于多个所述限位工装孔，并使得所述菲涅尔软模板的菲涅尔结构面朝向所述静电膜；步骤S33、将多个所述菲涅尔软模板的与其所述菲涅尔结构面相对的面打胶，使多个所述菲涅尔软模板与所述第二塑料软模板固定；步骤S34、揭去所述静电膜，得到所述特征软模板；Step S3, respectively fixing and installing a plurality of the Fresnel soft formwork in a second plastic soft formwork to obtain a characteristic soft formwork; wherein, the second plastic soft formwork includes a plurality of Fresnel soft formwork for installing the The limit tooling hole of the Nier soft template, the limit tool hole penetrates the second plastic soft template, a plurality of the limit tool holes are arranged at intervals from each other, and the limit tool hole and the Fresnel The soft templates are set in a one-to-one correspondence; the S3 specifically includes: step S31, attaching an electrostatic film to one side of the second plastic soft template; step S32, placing a plurality of the Fresnel soft templates on a plurality of the limit tooling hole, and make the Fresnel structure surface of the Fresnel soft template face the electrostatic film; step S33, connect the Fresnel structure surface of the Fresnel soft template to the Fresnel structure surface. Apply glue on the opposite surface to fix a plurality of the Fresnel soft templates and the second plastic soft template; step S34, peel off the electrostatic film to obtain the characteristic soft template;步骤S4、对所述特征软模板的配置有菲涅尔结构的一侧进行导电化处理，形成一层金属层；Step S4, conducting conductive treatment on the side of the characteristic soft template that is configured with the Fresnel structure to form a metal layer;步骤S5、对导电化处理后的所述特征软模板的配置有所述金属层的一侧进行电铸处理，形成金属电铸层，将所述特征软模板与所述金属电铸层脱模以获得菲涅尔透镜金属模具；其中，所述菲涅尔透镜金属模具包括多个相互间隔设置的第二菲涅尔结构槽，且所述第二菲涅尔结构槽与所述菲涅尔结构匹配。Step S5, performing electroforming treatment on the side of the conductive soft template on which the metal layer is arranged to form a metal electroforming layer, and demolding the characteristic soft template from the metal electroforming layer to obtain a Fresnel lens metal mold; wherein, the Fresnel lens metal mold includes a plurality of second Fresnel structure grooves spaced apart from each other, and the second Fresnel structure grooves are connected to the Fresnel structure. Structure matches.2.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，在所述步骤S2中具体包括以下子步骤：2. The method for manufacturing a Fresnel lens metal mold according to claim 1, wherein the step S2 specifically comprises the following sub-steps:步骤S21、将所述第一塑料软模板盖设于所述单穴母模上并完全覆盖所述第一菲涅尔结构槽；Step S21, covering the first plastic soft template on the single-cavity master mold and completely covering the first Fresnel structure groove;步骤S22、对所述单穴母模加热至第一预设温度，使所述第一塑料软模板软化；Step S22, heating the single-cavity master mold to a first preset temperature to soften the first plastic soft template;步骤S23、在预设时间内持续对所述第一塑料软模板施加压力，以使加热软化后的所述第一塑料软模板完全填满所述第一菲涅尔结构槽；Step S23, continuously applying pressure to the first soft plastic template for a preset time, so that the first soft plastic template after heating and softening completely fills the first Fresnel structure groove;步骤S24、将所述单穴母模的温度冷却至第二预设温度，并取出所述第一塑料软模板，获得所述菲涅尔软模板；其中，所述第二预设温度小于所述第一预设温度。Step S24, cooling the temperature of the single-cavity master mold to a second preset temperature, and taking out the first plastic soft template to obtain the Fresnel soft template; wherein the second preset temperature is lower than the predetermined temperature. the first preset temperature.3.根据权利要求2所述的菲涅尔透镜金属模具制作方法，其特征在于，所述第一预设温度为80℃至150℃之间；所述预设时间为10～30分钟；所述第二预设温度小于或等于50℃；施加的压力为200N。3 . The method for manufacturing a Fresnel lens metal mold according to claim 2 , wherein the first preset temperature is between 80° C. and 150° C.; the preset time is 10-30 minutes; The second preset temperature is less than or equal to 50°C; the applied pressure is 200N.4.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述步骤S32还包括：对所述菲涅尔软模板进行切割处理，以使所述菲涅尔软模板的外形尺寸与所述限位工装孔匹配。4 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein the step S32 further comprises: cutting the Fresnel soft template, so as to make the Fresnel soft template The outer dimensions of the device match the limit tooling holes.5.根据权利要求4所述的菲涅尔透镜金属模具制作方法，其特征在于，所述步骤S32中，对所述菲涅尔软模板进行切割处理时，使所述菲涅尔结构位于所述菲涅尔软模板中心。5 . The method for manufacturing a Fresnel lens metal mold according to claim 4 , wherein in the step S32 , when the Fresnel soft template is cut, the Fresnel structure is located at the desired location. 6 . Describe the Fresnel Soft Template Center.6.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述步骤S4中，导电化处理的方法为电沉积制造工艺。6 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein, in the step S4 , the method of conducting the conductive treatment is an electrodeposition manufacturing process. 7 .7.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述第一塑料软模板包括聚碳酸酯、聚氯乙烯和有机玻璃中的任意一种。7 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein the first plastic soft template comprises any one of polycarbonate, polyvinyl chloride and plexiglass. 8 .8.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述第二塑料软模板包括聚碳酸酯、聚氯乙烯和有机玻璃中的任意一种。8 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein the second plastic soft template comprises any one of polycarbonate, polyvinyl chloride and plexiglass. 9 .9.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述单穴母模的厚度为8mm，所述第一菲涅尔结构槽的直径为100mm。9 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein the thickness of the single-cavity master mold is 8 mm, and the diameter of the first Fresnel structure groove is 100 mm. 10 .10.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，所述第一塑料软模板和所述第二塑料软模板的厚度均为1mm。10 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein the thicknesses of the first plastic soft template and the second plastic flexible template are both 1 mm. 11 .11.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，在所述步骤S4中，所述金属层为Ni，其厚度为100nm。11 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein, in the step S4 , the metal layer is Ni, and its thickness is 100 nm. 12 .12.根据权利要求1所述的菲涅尔透镜金属模具制作方法，其特征在于，在所述步骤S5中，所述金属电铸层为Ni，其厚度小于500μm。12 . The method for manufacturing a Fresnel lens metal mold according to claim 1 , wherein, in the step S5 , the metal electroforming layer is Ni, and its thickness is less than 500 μm. 13 .

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