CN109664527B - Lens processing equipment and processing method thereof - Google Patents
Lens processing equipment and processing method thereof Download PDFInfo
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- CN109664527B CN109664527B CN201710957858.0A CN201710957858A CN109664527B CN 109664527 B CN109664527 B CN 109664527B CN 201710957858 A CN201710957858 A CN 201710957858A CN 109664527 B CN109664527 B CN 109664527B
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- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
- B29D11/00442—Curing the lens material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00951—Measuring, controlling or regulating
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a processing device and a processing method of a lens, the processing device mainly comprises a rack, a base material clamp (T) and a conical roller assembly which are fixed on the rack, and the base material clamp (T) and the conical roller assembly can move relatively; the conical round roller assembly comprises a mirror surface roller (A) and a structure roller (B) which are correspondingly arranged, and an annular groove structure is overlapped on the surface of the structure roller (B); the processing equipment also comprises a glue injection mechanism (D), wherein a glue injection opening of the glue injection mechanism (D) is positioned in the large-radius area of the structure roller (B); the processing equipment further comprises a curing mechanism (U), and the curing mechanism (U) is arranged below the structure roller (B). The finished product has good appearance and uniformity, is particularly suitable for the production and application of large-size display screens, improves the product yield, reduces the cost and ensures that the screens have better visual effect.
Description
Technical Field
The invention relates to a processing device and a processing method of a lens, belonging to the technical field of optical component manufacturing.
Background
The large-size annular groove structure lens is a lens with one smooth surface and the other surface engraved with concentric circles or Archimedes spiral, and is widely applied in various industries at present, such as: the optical component is applied to the field of solar condensation, is one of important optical components in a condensation solar system (CPV), and the performance of the optical component directly influences the condensation rate of the CPV system; the main function of the projector is to collect the light with large divergence angle projected by the projector, so that the originally diverged light can be concentrated in the viewing angle of the audience, thereby achieving the purpose of increasing the image brightness. With this background and market demand, it is necessary and commercially desirable to fabricate a structure with high precision and quality.
In the prior art, a large-scale machine tool burning mold is mostly adopted in the processing method of the annular groove structure, and then the burning mold is used for integral casting or compression molding, or the annular groove structure is directly formed by grinding and burning on a lens base material. In the prior art, a clamping control measure for thickness uniformity, deformation of glue after forming and before curing and a measure for removing glue/base low-surface bubbles are lacked. In addition, in the existing conical roller production technology, as shown in the content disclosed in the prior patent with the patent number zl201410170395.x, the process method is simple, a process method for structure thickness uniformity and bubble removal is lacked, large-size fresnel products with uniform products and good appearance cannot be achieved, the through rate is low, and the subsequent application is not facilitated.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a lens processing device and a lens processing method aiming at the defects of the prior art, the processed finished product has good appearance and uniformity, is particularly suitable for the production and application of large-size display screens, improves the product yield, reduces the cost and ensures that the screens have better visual effect.
The technical problem to be solved by the invention is realized by the following technical scheme: the processing equipment of the lens comprises a rack, and the processing equipment mainly comprises a substrate clamp and a conical round roller assembly which are fixed on the rack, and can move relatively between the substrate clamp and the conical round roller assembly; the conical round roller assembly comprises a mirror roller and a structural roller which are correspondingly arranged, and an annular groove structure is overlapped on the surface of the structural roller; the processing equipment comprises a glue injection mechanism, wherein a glue injection port of the glue injection mechanism is positioned in the large-radius area of the structure roller; the processing equipment further comprises a curing mechanism which is arranged below the structural roller; a substrate is secured to the substrate holder, the substrate passing through the gap between the mirror roller and the pattern roller, and a through-mold path is formed in the lens processing apparatus. In order to ensure effective demolding time, the mold penetrating path is in an S shape, and the base material penetrates into a gap between the mirror surface roller and the structure roller from the upper part of the mirror surface roller and then penetrates out from the lower part of the structure roller and the upper part of the curing mechanism.
Specifically, the substrate clamp is semicircular, performs circular motion by taking the circle center of the substrate clamp as the center, and generates relative motion with the conical roller assembly.
The small radius ends of the mirror surface roller and the structure roller are respectively connected with a horizontal bearing through a first bearing and a second bearing, and the first bearing and the second bearing enable the mirror surface roller and the structure roller to respectively use the small radius ends as fixed ends and use respective axes as centers to rotate in a horizontal plane; the horizontal bearing enables the whole of the mirror roller and the structural roller to revolve in a horizontal plane by taking the horizontal bearing as a center and to generate relative motion with the base material clamp.
In order to facilitate adjustment, an adjusting component is further arranged in the conical round roller component and used for adjusting the size of a gap between the mirror surface roller and the structural roller; the adjusting component mainly comprises an annular groove formed in the side face of the horizontal bearing, the first bearing is embedded in the annular groove, and the two sides of the first bearing are limited and fixed through a fixed stop block.
In order to effectively control the flow, a flow control assembly is further arranged on the glue injection mechanism, and comprises: a ball valve or a pump.
Typically, the glue in the glue injection mechanism is a light curing glue with a viscosity in the range of 50-500 centipoise.
In addition, the curing mechanism is composed of a plurality of UV light sources, and the effective irradiation area is the lower wrapping area of the structure roller.
The invention also provides a processing method of the processing equipment for the lens, which comprises the following steps:
step 100: fixing the base material on a base material clamp;
step 200: starting a glue injection mechanism, injecting glue at the large radius part of the structure roller, and starting a curing device;
step 300: the substrate clamp performs circular motion by taking the circle center of the substrate clamp as a central point in the annular direction, and simultaneously drives the substrate to move between the mirror surface roller and the structure roller;
step 400: the glue injected by the glue injection mechanism passes through a structural gap between the mirror surface roller and the structural roller to form a structure consistent with the annular groove overlapped on the surface of the structural roller shaft, and then reaches the curing area of the curing device to complete instant curing, so that the formed structure is obtained. In order to ensure an effective demolding time, the step 100 further comprises: and the base material penetrates into the gap between the mirror surface roller and the structure roller from the upper part of the mirror surface roller and penetrates out from the lower part of the structure roller and the upper part of the curing mechanism, and the die penetrating path is in an S shape.
The invention also provides a processing method of the processing equipment for the lens, which comprises the following steps:
step 100: fixing the base material on a base material clamp;
step 200: starting a glue injection mechanism, injecting glue at the large radius part of the structure roller, and starting a curing device;
step 300: the mirror surface roller and the structure roller rotate in a horizontal plane by taking respective axes as centers and revolve in the horizontal plane around a fixed center at the same time, and the base material clamp is kept fixed to enable the base material to move relative to the mirror surface roller and the structure roller;
step 400: the glue injected by the glue injection mechanism passes through a structural gap between the mirror surface roller and the structural roller to form a structure consistent with the annular groove overlapped on the surface of the structural roller shaft, and then reaches the curing area of the curing device to complete instant curing, so that the formed structure is obtained. In order to ensure an effective demolding time, the step 100 further comprises: and the base material penetrates into the gap between the mirror surface roller and the structure roller from the upper part of the mirror surface roller and penetrates out from the lower part of the structure roller and the upper part of the curing mechanism, and the die penetrating path is in an S shape.
In summary, the present invention provides a lens processing apparatus and a lens processing method, which have the following advantages: the glue consumption is accurately ensured and the loss is reduced by controlling the gap between the conical mirror surface roller and the structural roller; by adopting a structure forming mode of forming and curing at the same time, an accurate structure angle can be obtained; on the basis of a structure forming mode of forming and curing, glue with low viscosity can be selected, the glue is stored and circulated in a V-shaped groove between two wheels, bubbles in the glue can be completely removed, the formed structure is good in thickness uniformity and appearance, and the influence of fine bubbles is avoided; the method is particularly suitable for the production and application of large-size display screens, improves the product yield, reduces the cost and ensures that the screens have better visual effect.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the overall construction of the processing apparatus of the present invention;
FIG. 2 is a perspective view of the arrangement of the substrate between the mirror roller and the structured roller in accordance with the present invention;
FIG. 3 is a schematic view of the placement of the substrate between the mirror roller and the structured roller according to the present invention;
FIGS. 4, 5 and 6 are schematic views of the connection structure of the mirror surface roller and the structure roller with respective bearings according to the present invention;
FIG. 7 is a schematic view of the adjusting assembly of the present invention;
FIG. 8 is a schematic diagram of a finished lens with a ring-shaped groove microstructure according to the present invention.
Detailed Description
FIG. 1 is a schematic view of the overall structure of the processing apparatus of the present invention; FIG. 2 is a perspective view of the arrangement of the substrate between the mirror roller and the structured roller in accordance with the present invention; FIG. 3 is a schematic view of the arrangement of the substrate between the mirror surface roller and the structured roller according to the present invention. As shown in fig. 1 to 3, the present invention provides a lens processing apparatus, which mainly includes a substrate holder T and a tapered roller assembly, and the substrate holder T and the tapered roller assembly can move relative to each other. Specifically, the conical round roller assembly comprises a mirror roller A and a structural roller B which are correspondingly arranged, wherein a hard metal coating is electroplated on the surface of the mirror roller A, and an annular groove structure is stacked on the surface of the structural roller B. As shown in fig. 4 and 5, the annular grooves overlapped on the surface of the structural roller B are complete annular grooves arranged along the circumferential direction of the structural roller, and each groove is arranged at equal intervals along the axial direction of the structural roller. The processing equipment comprises a glue injection mechanism D, wherein a glue injection opening in the glue injection mechanism D is positioned in a large-radius area of the structure roller B, glue is injected from the injection opening and covers the surface of the base material C, and when the base material C passes through a gap between the mirror surface roller A and the structure roller B, the glue covering the surface of the base material C forms a structure consistent with the base material C under the action of an annular groove overlapped on the surface of the structure roller B; the processing equipment further comprises a curing mechanism U, the curing mechanism U is arranged below the structure roller B, the curing mechanism U is composed of a plurality of UV light sources, and the effective irradiation area is the wrapping area below the structure roller B, so that the glue is cured and formed rapidly.
Referring to fig. 2 and 3, a substrate C is fixed to the substrate holder T to ensure that the substrate C does not move relative to the substrate holder T after tension is applied thereto. In order to ensure effective demoulding time, under the relative motion between the substrate clamp T and the conical round roller assembly, the substrate C penetrates into the gap between the mirror surface roller A and the structure roller B from the upper part of the mirror surface roller A and penetrates out from the lower part of the structure roller B and the upper part of the curing mechanism U, and a die penetrating path is in an S shape. Wherein the base material C comprises PET, PC or PMMA.
Since the substrate C is fixed to the substrate holder T and there is no relative movement between the substrate C and the substrate holder T, it is necessary to have relative movement between the substrate holder T and the conical roller assembly to complete the entire process. The movement mode can adopt various modes according to actual requirements, the substrate clamp T is semicircular, and can perform circular movement by taking the circle center of the substrate clamp as the center and generate relative movement with the conical roller assembly; the mirror roller A and the structure roller B can rotate radially at low friction at the same linear speed by taking the small radius end of the mirror roller A and the small radius end of the structure roller B as the center, and move relative to the base material clamp T. Fig. 4, 5 and 6 are schematic views of the connection structure of the mirror surface roller and the structure roller and the respective bearings of the invention. As shown in fig. 4 to 6, the small radius ends of the mirror surface roller a and the structural roller B are respectively connected with a horizontal bearing E through a first bearing F and a second bearing G, and the first bearing F and the second bearing G enable the mirror surface roller a and the structural roller B to respectively use the small radius ends thereof as fixed ends and use respective axes as centers to rotate in a horizontal plane; meanwhile, the mirror roller a and the structure roller B are integrally revolved around a fixed center in the horizontal plane, that is: the mirror roller a and the structure roller B rotate in the circumferential direction of the horizontal bearing E with the axis of the horizontal bearing E as a fixed center. By the rotation and revolution described above, the substrate holder is held stationary, and the mirror roller a and the texture roller B are moved relative to the substrate holder T.
In order to effectively control the thickness of the glue, an adjusting component is further arranged in the conical round roller component and used for adjusting the size of the gap between the mirror surface roller A and the structure roller B. Fig. 7 is a schematic structural diagram of an adjusting assembly of the present invention. As shown in fig. 7, the adjusting assembly mainly includes an annular groove I formed in a side surface of the horizontal bearing E, the first bearing F is embedded in the annular groove I, and two sides of the first bearing F are fixed by a fixing block K. The fixed stop dog K is arranged on two sides of the first bearing F through a fixing nut J, and the fixed stop dog K is fixed at different positions of the annular groove I, so that the gap between the mirror roller A and the structure roller B can be adjusted. In the embodiment shown in fig. 7, the first bearing F is embedded in the annular groove I, and in practical application, the second bearing G may be embedded in the annular groove I as needed, and whichever bearing is fixed may play a role in adjusting the size of the gap between the mirror surface roller a and the structure roller B.
Simultaneously, still need carry out effective control to the flow of glue, consequently still be equipped with the flow control subassembly on the glue injection mechanism D, the flow control subassembly can be for the tap formula, comes the control flow through the ball valve, also can be for the pump formula, comes the control flow through the pump body. Typically, the glue is a light-cured glue having a viscosity in the range of 50 to 500cps (centipoise).
Referring to fig. 1 to 6, the processing method of the lens processing apparatus according to the present invention is as follows:
example one
Firstly: fixing the base material C on a base material clamp T; in order to ensure effective demolding time, the base material C penetrates into the gap between the mirror surface roller A and the structure roller B from the upper part of the mirror surface roller A and penetrates out from the lower part of the structure roller B and the upper part of the curing mechanism U, and a mold penetrating path is in an S shape. Then: and opening the glue injection mechanism D, injecting glue at the large radius part of the structure roller B, and opening the curing device U. Then: the substrate fixture T performs circular motion by taking the circle center as a central point in the annular direction, and simultaneously drives the substrate C to move between the mirror surface roller A and the structure roller B. And finally: the glue that glue injection mechanism D pours into passes through the structure gap between mirror roller A and the structure roller B, forms the structure unanimous with the annular groove that the structure roller surface was folded and is established, reaches solidification region of solidification equipment U, accomplishes the solidification in the twinkling of an eye to obtain the structure after the shaping. FIG. 8 is a schematic diagram of a finished lens with a ring-shaped groove microstructure according to the present invention. As shown in fig. 8, the finished surface of the present invention is provided with the same structure of the annular grooves superposed on the surface of the structured roll B.
In summary, in the present embodiment, the combination axis of the mirror roller a and the structural roller B is fixed in the horizontal direction, and can freely rotate in the radial direction; the annular clamp T can move circularly in the annular direction.
Example two
This embodiment is substantially the same as the first embodiment except that in the first embodiment, the substrate holder T is moved while the tapered roller assembly is stationary; in the second embodiment, the mirror roller a and the structure roller B revolve around a fixed center in the horizontal plane while rotating around their respective axes in the horizontal plane, the substrate holder T is kept stationary, and the substrate C is moved relative to the mirror roller a and the structure roller B.
In summary, in the present embodiment, the combination shaft of the mirror roller a and the structural roller B can freely rotate both in the horizontal direction and the radial direction; the ring clamp T is a fixing device.
Other technical features in this embodiment are substantially the same as those in the first embodiment, and for details, reference is made to the first embodiment, which is not repeated herein.
In summary, the present invention provides a lens processing apparatus and a lens processing method thereof, which have the following advantages:
1. the gap between the conical gap wheel and the structural roller is controlled, so that the glue consumption is accurately ensured, and the loss is reduced;
2. by adopting a structure forming mode of forming while curing, an accurate structure angle can be obtained;
3. on the structure shaping mode basis of solidification in limit shaping limit, the lower glue of optional viscosity, glue is stored and is circulated in V type groove between two rounds, can eliminate the bubble in the glue completely, and shaping structure thickness homogeneity is good, and structural appearance nature is good, does not have tiny bubble influence.
The invention is particularly suitable for the production and application of large-size display screens, improves the product yield, reduces the cost and ensures that the screens have better visual effect.
Claims (10)
1. The processing equipment of the lens comprises a rack, and is characterized in that the processing equipment mainly comprises a substrate clamp (T) and a conical roller assembly which are fixed on the rack, and the substrate clamp and the conical roller assembly can move relative to each other;
the conical round roller assembly comprises a mirror surface roller (A) and a structure roller (B) which are correspondingly arranged, an annular groove structure is overlapped on the surface of the structure roller (B), and the axes of the mirror surface roller (A) and the structure roller (B) form an included angle on the horizontal plane;
the processing equipment further comprises a glue injection mechanism (D), and a glue injection opening of the glue injection mechanism (D) is positioned in the large-radius area of the structure roller (B);
the processing equipment also comprises a curing mechanism (U) which is arranged below the structural roller (B);
the curing mechanism (U) consists of a plurality of UV light sources with the same wave band, and the effective irradiation area is the lower wrapping area of the structural roller (B);
the substrate fixture (T) is used for fixing a substrate (C), the glue injection mechanism (D) injects and covers glue on the surface of the substrate (C), and when the substrate (C) passes through the gap between the mirror roller (A) and the structure roller (B), the glue on the surface of the substrate (C) is covered to form a structure consistent with the annular groove under the action of the annular groove.
2. The lens processing apparatus according to claim 1, wherein the substrate holder (T) is semicircular and moves circularly around its center, and moves relatively to the tapered roller assembly.
3. The lens processing apparatus according to claim 1, wherein the minor radius ends of the mirror surface roller (a) and the configuration roller (B) are connected to a horizontal bearing (E) through a first bearing (F) and a second bearing (G), respectively, the first bearing (F) and the second bearing (G) rotating the mirror surface roller (a) and the configuration roller (B) in a horizontal plane with the minor radius ends thereof as fixed ends and the respective axes as centers; the horizontal bearing (E) enables the whole of the mirror surface roller (A) and the structural roller (B) to revolve around the horizontal bearing (E) in a horizontal plane, and generates relative motion with the base material clamp (T).
4. The lens processing apparatus according to claim 3, wherein an adjusting member is further provided in the conical round roller assembly for adjusting the size of the gap between the mirror surface roller (A) and the structure roller (B);
the adjusting component mainly comprises an annular groove (I) formed in the side face of the horizontal bearing (E), the first bearing (F) is embedded in the annular groove, and the two sides of the first bearing are fixed in a limiting mode through a fixed stop block (K).
5. A lens processing apparatus as claimed in claim 2 or 3, characterized in that said glue injection means (D) is further provided with a flow control assembly;
the flow control assembly includes: a ball valve or a pump.
6. The lens processing apparatus according to claim 5, wherein said glue injection means (D) is a light-curing glue having a viscosity in the range of 50-500 cps.
7. A method of processing a lens processing apparatus according to any one of claims 1 to 6, wherein the method comprises the steps of:
step 100: fixing a substrate (C) on a substrate holder (T);
step 200: starting a glue injection mechanism (D), injecting glue into the large-radius part of the structure roller (B), and starting a curing device (U);
step 300: the substrate clamp (T) performs circular motion by taking the circle center of the substrate clamp as a central point in the annular direction, and simultaneously drives the substrate (C) to move between the mirror surface roller (A) and the structure roller (B);
step 400: and (3) glue injected by the glue injection mechanism (D) passes through a structural gap between the mirror surface roller (A) and the structural roller (B) to form a structure which is consistent with the annular groove overlapped on the surface of the structural roller shaft, and then reaches the curing area of the curing device (U) to finish instant curing, so that the formed structure is obtained.
8. The method of manufacturing a lens manufacturing apparatus as claimed in claim 7, wherein said step 100 further comprises: and (3) the base material (C) penetrates into a gap between the mirror surface roller and the structure roller (B) from the upper part of the mirror surface roller (A), and penetrates out from the lower part of the structure roller and the upper part of the curing mechanism (U), and the die penetrating path is in an S shape.
9. A method of processing a lens processing apparatus as claimed in any one of claims 1 to 6, characterized in that the method comprises the steps of:
step 100: fixing a substrate (C) on a substrate holder (T);
step 200: starting a glue injection mechanism (D), injecting glue into the large-radius part of the structure roller (B), and starting a curing device (U);
step 300: the mirror surface roller (A) and the structure roller (B) rotate in a horizontal plane around respective axes and revolve around a fixed center in the horizontal plane, the time base material clamp (T) is kept fixed, and the base material (C) moves relative to the mirror surface roller (A) and the structure roller (B);
step 400: and (3) after the glue injected by the glue injection mechanism (D) passes through a structural gap between the mirror roller (A) and the structural roller (B) to form a structure consistent with the annular groove formed on the surface of the structural roller shaft in an overlapping mode, the glue reaches a curing area of a curing device (U) to finish instant curing, and therefore the formed structure is obtained.
10. The method of claim 9, wherein the step 100 further comprises: and (3) the base material (C) penetrates into a gap between the mirror surface roller and the structure roller (B) from the upper part of the mirror surface roller (A), and penetrates out from the lower part of the structure roller and the upper part of the curing mechanism (U), and the die penetrating path is in an S shape.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957858.0A CN109664527B (en) | 2017-10-16 | 2017-10-16 | Lens processing equipment and processing method thereof |
| CN202210893338.9A CN115302827A (en) | 2017-10-16 | 2017-10-16 | Lens processing equipment and processing method thereof |
| PCT/CN2018/071418 WO2019075936A1 (en) | 2017-10-16 | 2018-01-04 | Lens processing apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957858.0A CN109664527B (en) | 2017-10-16 | 2017-10-16 | Lens processing equipment and processing method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210893338.9A Division CN115302827A (en) | 2017-10-16 | 2017-10-16 | Lens processing equipment and processing method thereof |
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| Publication Number | Publication Date |
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| CN109664527A CN109664527A (en) | 2019-04-23 |
| CN109664527B true CN109664527B (en) | 2022-09-06 |
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| CN202210893338.9A Pending CN115302827A (en) | 2017-10-16 | 2017-10-16 | Lens processing equipment and processing method thereof |
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| WO (1) | WO2019075936A1 (en) |
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| CN112123825B (en) * | 2020-11-26 | 2021-03-12 | 成都菲斯特科技有限公司 | Lens processing equipment and processing method thereof |
| CN113334669B (en) * | 2021-05-31 | 2022-08-19 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Circular fei nieer processing equipment based on conical rollers |
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- 2017-10-16 CN CN201710957858.0A patent/CN109664527B/en active Active
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| CN105014944A (en) * | 2014-04-17 | 2015-11-04 | 深圳市绎立锐光科技开发有限公司 | Device for manufacturing Fresnel lens and method thereof |
| CN103963324A (en) * | 2014-04-25 | 2014-08-06 | 成都菲斯特科技有限公司 | Manufacturing method for big size polarizing short focal length Fresnel lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115302827A (en) | 2022-11-08 |
| CN109664527A (en) | 2019-04-23 |
| WO2019075936A1 (en) | 2019-04-25 |
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