CN113787678B - Injection mold of multichannel lens and molding method thereof - Google Patents
Injection mold of multichannel lens and molding method thereof Download PDFInfo
- Publication number
- CN113787678B CN113787678B CN202111011765.1A CN202111011765A CN113787678B CN 113787678 B CN113787678 B CN 113787678B CN 202111011765 A CN202111011765 A CN 202111011765A CN 113787678 B CN113787678 B CN 113787678B
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- 238000000465 moulding Methods 0.000 title claims abstract description 50
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000571 coke Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000001746 injection moulding Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 239000000178 monomer Substances 0.000 claims description 17
- 239000003507 refrigerant Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004939 coking Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 description 12
- 238000000605 extraction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an injection mold of a multichannel lens and a molding method thereof, wherein a longitudinal flow channel is arranged in an upper mold plate, a sealing lug is fixed at the bottom of the upper mold plate, a communicated upper molding female mold cavity and a flat flow channel are arranged at the bottom of the sealing lug, the flat flow channel is connected to the bottom end of the longitudinal flow channel, and the upper molding female mold cavity is formed by splicing a plurality of first positive light coke molding surfaces which are arranged in an array manner; the lower die plate is provided with a positioning groove, the bottom of the positioning groove is connected with a forming cavity, and a step-by-step forming module is arranged in the forming cavity; the step-by-step forming module comprises single die core columns, the arrangement mode of the single die core columns is the same as that of each first positive photo-coking forming surface, the top of each single die core column is provided with a second positive photo-coking forming surface, and the bottom of each single die core column is connected with a lifting mechanism. The invention can obtain the multichannel lens with clear edges between the inner channels in a step-by-step molding mode, but the connection structure between the single-channel lens bodies is stable and firm.
Description
Technical Field
The invention relates to an injection mold, and particularly discloses an injection mold of a multichannel lens and a molding method thereof.
Background
Injection molding is a method for producing and modeling industrial products, and an injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. The lens is made of optical materials such as glass or resin and is made of transparent materials with one or more curved surfaces, and can be used for structures such as lighting fixtures and display modules.
The multi-channel lens is also called a fly-eye lens, and is usually manufactured into a resin lens, in the prior art, corresponding fly-eye surface structures are arranged on two opposite sides of a cavity of an injection mold for manufacturing the multi-channel lens, after mold closing, heated and melted plastic is injected into the cavity by an injection molding machine under high pressure, and after cooling and solidification, the multi-channel lens is obtained, but the multi-channel lens only has a fly-eye contour structure on two surfaces, the inside of the multi-channel lens is of an integrated structure, and the multi-channel adjusting effect is poor.
Disclosure of Invention
In view of the above, it is necessary to provide an injection mold for a multi-channel lens and a molding method thereof, which can process and obtain a multi-channel lens having a clear inner channel edge.
In order to solve the problems in the prior art, the invention discloses an injection mold of a multichannel lens, which comprises an upper base plate, an upper template, a lower mold seat and a lower base plate which are sequentially arranged from top to bottom, wherein a longitudinal flow channel is arranged in the upper template, a sealing convex block is fixed at the bottom of the upper template, an upper molding female mold cavity and a flat flow channel which are communicated are arranged at the bottom of the sealing convex block, the flat flow channel is connected to the bottom end of the longitudinal flow channel, and the upper molding female mold cavity is formed by splicing a plurality of first positive light coke molding surfaces which are arranged in an array;
the lower die plate is provided with a positioning groove matched with the sealing convex block, the bottom of the positioning groove is connected with a forming cavity, a step-by-step forming module positioned right below the sealing convex block is arranged in the forming cavity, and the lower die base is provided with a lifting abdication cavity;
the step forming module comprises single die core columns with the same number as the first positive photo-coking forming surfaces, the arrangement mode of the single die core columns is the same as that of the first positive photo-coking forming surfaces, the top of each single die core column is provided with a second positive photo-coking forming surface, and the bottom of each single die core column is connected with a lifting mechanism positioned in a lifting yielding cavity.
Further, one side of the longitudinal flow channel is connected with an inclined upward air extraction channel, and one end of the air extraction channel, which is far away from the longitudinal flow channel, is connected with a vacuum generator.
Further, the first positive light coke forming surface and the second positive light coke forming surface are both aspheric surfaces.
Further, the area of the opening of the flat flow channel near one end of the upper molding cavity is smaller than the area of the other end.
Further, the lifting mechanism is an air cylinder.
Further, a cooling flow passage is arranged in the single die core column, and two ends of the cooling flow passage are respectively connected with a refrigerant inlet pipe and a refrigerant outlet pipe.
Further, the cooling flow channel is in an inverted U shape.
Further, a die core seat is connected between the lifting mechanism and the single die core column, and the single die core column is detachably connected to the die core seat.
The invention also discloses a molding method of the injection mold of the multichannel lens, which sequentially comprises the following steps:
s1, closing a die of an upper die plate, pressing the die onto a lower die plate, blocking a sealing lug in a positioning groove, forming a first injection molding monomer cavity between a first single die core column and a first opposite positive light coke forming surface from one end close to a flat runner, connecting other single die cores to the bottom of an upper molding die cavity, blocking the bottom of the first injection molding monomer cavity, injecting molten plastic into the first injection molding monomer cavity through a longitudinal runner and the flat runner, and forming a first single-channel mirror body after cooling molding;
s2, driving a first single die core column to descend to form a gap with a first opposite positive light coke forming surface, enabling a second single die core column to descend to form a second injection molding single cavity with the first opposite positive light coke forming surface, injecting molten plastic into the second injection molding single cavity through a longitudinal runner, a flat runner and the gap, enabling the first single die core column to ascend to the gap to be blocked, and enabling a second single channel lens body to be formed in the second injection molding single cavity after cooling forming;
s3, repeating the step S2 until all the single-channel lens bodies are obtained through processing, and splicing all the single-channel lens bodies into a multi-channel lens with clear inner channel edges;
s4, the upper die plate is separated from the lower die plate, the sealing convex blocks are far away from the positioning grooves, and each lifting mechanism drives each single die core column to lift up to eject the multichannel lens.
The beneficial effects of the invention are as follows: the invention discloses an injection mold of a multichannel lens and a molding method thereof, wherein a special distribution molding module is arranged, a sealed molding cavity space can be formed after mold closing, a multichannel lens structure with clear edges between internal channels can be obtained in a step molding mode, the manufactured multichannel lens has excellent multichannel modulation performance, information crosstalk between different optical channels can be effectively avoided, the manufactured multichannel structure is stable and reliable, and the connecting structure between all single-channel lens bodies is stable and firm although clear edges are formed inside.
Drawings
Fig. 1 is a schematic structural diagram of an injection mold for a multi-channel lens according to the present invention during mold opening.
Fig. 2 is a schematic structural diagram of the multi-channel lens of the present invention when the injection mold is closed for injection molding.
The reference numerals are: the upper padding plate 10, the upper template 20, the longitudinal runner 21, the sealing lug 22, the upper molding female die cavity 23, the first positive-working coke molding surface 231, the advection runner 24, the air suction channel 25, the vacuum generator 251, the lower template 30, the positioning groove 31, the molding cavity 32, the lower die holder 40, the lifting yielding cavity 41, the lower padding plate 50, the step molding module 60, the single die core column 61, the second positive-working coke molding surface 611, the cooling runner 612, the lifting mechanism 62, the refrigerant inlet pipe 621, the refrigerant outlet pipe 622, the die core seat 63.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Reference is made to fig. 1 and 2.
The embodiment of the invention discloses an injection mold of a multichannel lens, wherein the mold opening state is shown in fig. 1, the injection mold comprises an upper base plate 10, an upper template 20, a lower template 30, a lower die holder 40 and a lower base plate 50 which are sequentially arranged from top to bottom, a longitudinal flow passage 21 which simultaneously penetrates through the upper base plate 10 is arranged in the upper template 20, a sealing lug 22 is fixed at the bottom of the upper template 20, a communicated upper molding concave mold cavity 23 and a flat flow passage 24 are arranged at the bottom of the sealing lug 22, the flat flow passage 24 is connected to the bottom end of the longitudinal flow passage 21, the upper molding concave mold cavity 23 is formed by splicing a plurality of first positive optical coke molding surfaces 231 which are arranged in an array, and the first positive optical coke molding surfaces 231 are upwards recessed to be capable of manufacturing and obtaining optical surfaces of positive optical coke;
the lower die plate 30 is provided with a positioning groove 31 matched with the sealing lug 22, the bottom of the positioning groove 31 is connected with a forming cavity 32, a step-by-step forming module 60 positioned right below the sealing lug 22 is arranged in the forming cavity 32, and the lower die holder 40 is provided with a lifting abdication cavity 41;
the step forming module 60 includes a number of monomer cavity columns 61 equal to the number of the first positive-light-coke forming surfaces 231, the monomer cavity columns 61 are quadrangular, side walls among the monomer cavity columns 61 are in close contact, all the monomer cavity columns 61 are in close contact with the inner walls of the forming cavity 32, the arrangement mode of the monomer cavity columns 61 is the same as that of the first positive-light-coke forming surfaces 231, a second positive-light-coke forming surface 611 is arranged at the top of each monomer cavity column 61, the second positive-light-coke forming surface 611 is recessed downwards to manufacture an optical surface for obtaining positive light coke, and a lifting mechanism 62 positioned in the lifting yielding cavity 41 is connected to the bottom of each monomer cavity column 61.
In this embodiment, one side of the longitudinal flow channel 21 is connected with an air extraction channel 25 inclined upwards, one end of the air extraction channel 25 far away from the longitudinal flow channel 21 is connected with a vacuum generator 251, and the vacuum generator 251 can extract redundant gas inside the forming cavity 32 to ensure reliable forming effect, and in addition, the inclined air extraction channel 25 can prevent molten plastic from flowing into the air extraction channel 25 in the injection molding process.
In this embodiment, the first positive optical focal forming surface 231 and the second positive optical focal forming surface 611 are both aspheric, so that the optical adjustment effect of the obtained multi-channel lens surface can be improved.
In this embodiment, the area of the opening of the flat runner 24 near one end of the upper molding cavity 23 is smaller than that of the other end, so that the difficulty in cutting the nozzle after molding can be effectively reduced.
In this embodiment, the lifting mechanism 62 is an air cylinder, and the air cylinder can drive the single die core column 61 to realize stable lifting motion.
In this embodiment, a cooling flow channel 612 is disposed in the single mold core column 61, two ends of the cooling flow channel 612 are respectively connected with a refrigerant inlet pipe 621 and a refrigerant outlet pipe 622, and a cooling medium enters the cooling flow channel 612 from the refrigerant inlet pipe 621 and flows out from the refrigerant outlet pipe 622, so that a reliable cooling operation can be realized for the single mold core column 61, and the efficiency of step-by-step molding can be effectively improved.
Based on the above embodiment, the cooling flow passage 612 has an inverted U-shape.
In this embodiment, the mold insert seats 63 are connected between each lifting mechanism 62 and each single mold insert column 61, and the single mold insert columns 61 are detachably connected to the mold insert seats 63, so that the single mold insert columns 61 with different second positive light coke molding surfaces 611 can be provided according to requirements, thereby adapting to the processing of multi-channel lenses with different surface types, and having strong versatility.
The embodiment of the invention also discloses a molding method of the injection mold of the multichannel lens, which sequentially comprises the following steps:
s1, the upper die plate 20 is clamped and pressed onto the lower die plate 30, as shown in FIG. 2, the sealing lug 22 is blocked in the positioning groove 31, a first injection molding monomer cavity is formed between the first single die core column 61 and the opposite first positive optical coke molding surface 231 from the end close to the flat runner 24, other single die cores are connected to the bottom of the upper molding die cavity and blocked on the side surface of the first injection molding monomer cavity, molten plastic is injected into the first injection molding monomer cavity through the longitudinal runner 21 and the flat runner 24, and a first single channel lens body is formed in the first injection molding monomer cavity after cooling molding;
s2, driving the first single die core column 61 to descend to form a gap with the opposite first positive light coke forming surface 231, enabling the second single die core column 61 to descend to form a second injection molding single cavity with the opposite first positive light coke forming surface 231, injecting molten plastic into the second injection molding single cavity through the longitudinal flow channel 21, the advection channel 24 and the gap, enabling the first single die core column 61 to ascend to the position that the gap is blocked, enabling the first single die core column 61 to be blocked at one side of the second injection molding single cavity, and enabling the second single channel lens to be formed in the second injection molding single cavity after cooling forming;
s3, repeating the step S2 until all the single-channel lens bodies are obtained through processing, and splicing all the single-channel lens bodies into a multi-channel lens with clear inner channel edges;
s4, the upper die plate 20 is separated from the lower die plate 30, the sealing convex blocks 22 are far away from the positioning grooves 31, and each lifting mechanism 62 drives each single die core column 61 to lift up to eject the multichannel lens.
When the air suction passage 25 and the vacuum generator 251 are provided, in step S1, after the mold is closed, the molding cavity 32 is first vacuumized, and then the individual cavity columns 61 are driven to perform corresponding movements.
When the cooling flow channel 612 is provided, the cooling efficiency can be efficiently reduced for each single mold core column 61, and the cooling molding efficiency can be effectively improved by a relatively energy-saving mode.
The multi-channel lens structure with clear edges between the inner channels can be obtained in a step-by-step molding mode, the limitation that the multi-channel lens only has surface contours in the prior art can be effectively solved, the manufactured multi-channel lens has excellent multi-channel modulation performance, information crosstalk between different optical channels can be effectively avoided, the manufactured multi-channel structure is stable and reliable, and although the clear edges are formed inside, the connecting structure between the channels is stable and firm.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The injection mold for the multichannel lens comprises an upper base plate (10), an upper mold plate (20), a lower mold plate (30), a lower mold base (40) and a lower base plate (50) which are sequentially arranged from top to bottom, and is characterized in that a longitudinal flow passage (21) is arranged in the upper mold plate (20), a sealing lug (22) is fixed at the bottom of the upper mold plate (20), an upper molding concave mold cavity (23) and a flat flow passage (24) which are communicated are arranged at the bottom of the sealing lug (22), the flat flow passage (24) is connected to the bottom end of the longitudinal flow passage (21), and the upper molding concave mold cavity (23) is formed by splicing a plurality of first positive light coke molding surfaces (231) which are arranged in an array;
a positioning groove (31) matched with the sealing lug (22) is formed in the lower die plate (30), a forming cavity (32) is connected to the bottom of the positioning groove (31), a step-by-step forming module (60) positioned right below the sealing lug (22) is arranged in the forming cavity (32), and a lifting abdication cavity (41) is formed in the lower die holder (40);
the step forming module (60) comprises single die core columns (61) with the same number as the first positive light coke forming surfaces (231), the arrangement mode of the single die core columns (61) is the same as that of the first positive light coke forming surfaces (231), the top of each single die core column (61) is provided with a second positive light coke forming surface (611), and the bottom of each single die core column (61) is connected with a lifting mechanism (62) positioned in the lifting abdicating cavity (41).
2. The multi-channel lens injection mold according to claim 1, wherein one side of the longitudinal channel (21) is connected with an air suction channel (25) inclined upwards, and one end of the air suction channel (25) away from the longitudinal channel (21) is connected with a vacuum generator (251).
3. The multi-channel lens injection mold according to claim 1, wherein the first positive focal length molding surface (231) and the second positive focal length molding surface (611) are both aspherical surfaces.
4. An injection mould for a multi-channel lens according to claim 1, characterized in that the open area of one end of the advection channel (24) near the upper molding cavity (23) is smaller than the area of the other end.
5. The multi-channel lens injection mold of claim 1, wherein the lifting mechanism (62) is a cylinder.
6. The multi-channel lens injection mold according to claim 1, wherein a cooling flow channel (612) is provided in the single mold core column (61), and two ends of the cooling flow channel (612) are respectively connected with a refrigerant inlet pipe (621) and a refrigerant outlet pipe (622).
7. The multi-channel lens injection mold of claim 6, wherein the cooling channel (612) is inverted U-shaped.
8. The multi-channel lens injection mold according to claim 1, wherein a mold insert seat (63) is connected between the lifting mechanism (62) and the single mold insert column (61), and the single mold insert column (61) is detachably connected to the mold insert seat (63).
9. A method of molding an injection mold based on the multi-channel lens according to any one of claims 1 to 8, comprising the steps of, in order:
s1, closing the upper die plate (20) and pressing the upper die plate onto the lower die plate (30), blocking the sealing convex blocks (22) in the positioning grooves (31), forming a first injection molding monomer cavity between a first single die core column (61) and a first opposite positive light coke molding surface (231) from one end close to the flat runner (24), connecting other single die core columns (61) with the bottom of the upper molding die cavity and blocking the bottom of the first injection molding monomer cavity, injecting molten plastic into the first injection molding monomer cavity through the longitudinal runner (21) and the flat runner (24), and forming a first single channel lens body after cooling molding;
s2, driving a first single die core column (61) to descend to form a gap with a first opposite positive light coke forming surface (231), enabling a second single die core column (61) to descend to form a second injection molding single cavity with the first opposite positive light coke forming surface (231), injecting molten plastic into the second injection molding single cavity through a longitudinal flow channel (21), a horizontal flow channel (24) and the gap, enabling the first single die core column (61) to ascend to the gap to be blocked, and enabling a second single channel lens body to be formed in the second injection molding single cavity after cooling forming;
s3, repeating the step S2 until all the single-channel lens bodies are obtained through processing, and splicing all the single-channel lens bodies into a multi-channel lens with clear inner channel edges;
s4, the upper die plate (20) is separated from the lower die plate (30), the sealing convex blocks (22) are far away from the positioning grooves (31), and each lifting mechanism (62) drives each single die core column (61) to lift up to eject the multichannel lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111011765.1A CN113787678B (en) | 2021-08-31 | 2021-08-31 | Injection mold of multichannel lens and molding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111011765.1A CN113787678B (en) | 2021-08-31 | 2021-08-31 | Injection mold of multichannel lens and molding method thereof |
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| CN113787678A CN113787678A (en) | 2021-12-14 |
| CN113787678B true CN113787678B (en) | 2023-08-01 |
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| CN116100753B (en) * | 2023-02-13 | 2023-08-22 | 广州市旭胜模具有限公司 | Adjustable automobile shell injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212045827U (en) * | 2020-02-20 | 2020-12-01 | 东莞晶彩光学有限公司 | Step-by-step molding optical lens injection mold |
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| JP4142485B2 (en) * | 2003-04-17 | 2008-09-03 | オリンパス株式会社 | Mold equipment |
| JP4933247B2 (en) * | 2006-12-30 | 2012-05-16 | 株式会社住田光学ガラス | Glass lens molding apparatus and glass lens molding method |
| WO2012055046A1 (en) * | 2010-10-27 | 2012-05-03 | Dbm Reflex Enterprises Inc. | Lens array assembly for solid state light sources and method |
| TWI687304B (en) * | 2018-10-25 | 2020-03-11 | 均賀科技股份有限公司 | Optical lens plastic injection molding die structure |
| CN212147395U (en) * | 2020-01-20 | 2020-12-15 | 东莞市万德光电科技有限公司 | Compound-eye lens and lampshade same-mold different-outlet type mold |
| CN111196015B (en) * | 2020-01-22 | 2021-07-23 | 东莞市嘉誉光学技术有限公司 | Injection mold of optical lens |
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| CN212045827U (en) * | 2020-02-20 | 2020-12-01 | 东莞晶彩光学有限公司 | Step-by-step molding optical lens injection mold |
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