CN1598070A - Non-spherical plastic lens and mfg. method of module thereof - Google Patents
Non-spherical plastic lens and mfg. method of module thereof Download PDFInfo
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- CN1598070A CN1598070A CN 03146922 CN03146922A CN1598070A CN 1598070 A CN1598070 A CN 1598070A CN 03146922 CN03146922 CN 03146922 CN 03146922 A CN03146922 A CN 03146922A CN 1598070 A CN1598070 A CN 1598070A
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- lens
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Abstract
The invention relates to a non-sphere plastic lens and the manufacturing method of the model. The model is form by means of electroform it has several plastic substrate with non-sphere end-section and a pedestal with several hole and insert the abovementioned plastic substrate into the corresponding holes of the pedestal to form a plastic substrate array; form the metal electric layer on the non-sphere end-section of the plastic base material; electroform the plastic substrate array and then get the model array sequence of the non-sphere plastic lens. The non-sphere plastic lens is made by means of hot-press. First, warming up and softening the plastic board, putting it between the abovementioned model array sequences of the non-sphere plastic lens, pressurize, combine the models, opening the models to form the array of the non-sphere plastic lens and finally cuting the array of the non-sphere plastic lens to get several array of the non-sphere plastic lens.
Description
[technical field]
The present invention relates to the manufacture method of a kind of die and moulded product thereof, the manufacture method of particularly a kind of non-spherical lens die and aspherical plastic lens thereof.
[background technology]
Non-spherical lens is a kind of optical module commonly used, be widely used in camera lenses such as pick up camera, digital camera, image quality in the time of can increasing substantially large aperture, reduce the corner distortion of wide-angle lens, and, a slice non-spherical lens can substitute several pieces spherical lens aberration for compensation, can significantly simplify the optical design of camera lens, reduces its height, area, volume and weight.
Ejection forming technique is mainly adopted in the manufacturing of non-spherical lens, and in fact the development of ejection forming technique depends primarily on die material and die improvement of Manufacturing Technology.General opticglass ejection forming technique requires for the die following points:
A. when high temperature, has favorable rigidity, anti-mechanical impact strength and enough hardness;
B. die does not crack and is out of shape under rapid heating and refrigerative thermal shocking repeatedly;
C. die molded surface and optical plastic lens generation chemical reaction when high temperature do not adhere to glass lens;
D., high temperature oxidation does not take place;
E. good processability easily is processed into the profile of high precision and high surface finish;
F. cost is low.
The manufacture method of the die of common non-spherical lens has two kinds of the accurate facility manufacturing process of CNC (Computerized NumericalControl, computer numerical control) and electrodischarge machining(E.D.M.) methods, and still, all there is following shortcoming in above-mentioned in practice two kinds of processing methods:
A. each processing all need the producer to machined part parameter measure calculating again, waste time and energy;
B. only can be used for the simple die of manufacturing structure, if die to be processed is a complicated shape, then complicated mechanical is processed the destruction of easily causing die integral body, and can't reach the effect of expection.
Therefore, provide that a kind of manufacturing procedure is simple, cost is low, not yielding and less applicable to manufacture method and a kind of required controlled variable of the die of volume production non-spherical lens under the high temperature, the manufacture method of the aspherical plastic lens that precision is high is real be necessity.
[summary of the invention]
For solving in the prior art complex procedures, controlled variable in the die course of processing too much and be difficult to obtain the problem of complex structure, high precision die goods, the invention provides that a kind of manufacturing procedure is simple, structure is firm, and the manufacture method of on-deformable die under the high temperature.
For solving this technical problem, the invention provides a kind of manufacture method of non-spherical lens die, it mainly may further comprise the steps: many plastic basis materials with aspheric surface end face at first are provided; The one porous pedestal with a plurality of holes is provided once more, above-mentioned many plastic basis materials are inserted respectively in the respective aperture of this porous pedestal, form a plastic basis material array; Then, on the aspheric surface end face of plastic basis material, form metal conducting layer; Then, this plastic basis material array is carried out electroforming; Promptly obtain the die matrix sequence of non-spherical lens.
The present invention also provides a kind of method that adopts heat pressing process to form aspherical plastic lens.At first provide a plastic plate that is used to make non-spherical lens, with the pre-thermal softening of this plastic plate; Then, be placed on again between the die matrix sequence of above-mentioned non-spherical lens, pressurization, matched moulds, die sinking promptly forms the aspherical plastic lens matrix, and is last, and this aspherical plastic lens matrix is cut, and can obtain a plurality of aspherical plastic lenses.
Compared with prior art, the characteristics that the present invention is strong with electroforming process manifolding property are used to make the die of non-spherical lens, and manufacturing procedure is simple, cost is low, not yielding and applicable to the volume production of non-spherical lens under the high temperature.Aspherical plastic lens adopts heat pressing process preparation, the less and product precision height of required controlled variable.
[description of drawings]
Fig. 1 is the synoptic diagram of non-spherical lens die of the present invention;
Fig. 2 is the synoptic diagram of non-spherical lens of the present invention;
Fig. 3 is an electroforming schema of the present invention;
Fig. 4 is the male model benevolence matrix sequence synoptic diagram of non-spherical lens of the present invention;
Fig. 5 is the synoptic diagram of electroforming apparatus of the present invention;
Fig. 6 is the synoptic diagram one of the hot-forming aspherical plastic lens matrix of the present invention;
Fig. 7 is the synoptic diagram two of the hot-forming aspherical plastic lens matrix of the present invention;
Fig. 8 is an aspherical plastic lens matrix synoptic diagram of the present invention.
[embodiment]
The present invention adopts electroforming process to make the die of non-spherical lens, thereby obtains that a kind of manufacturing procedure is simple, cost is low, not yielding and applicable to the die of the volume production of non-spherical lens under the high temperature.Aspherical plastic lens adopts heat pressing process preparation, the less and product precision height of required controlled variable.
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figures 1 and 2, the die 1 of aspherical plastic lens 2 of the present invention comprises that an outside surface is the male model benevolence 10 of one first convex surface 100 and the mother module core 12 that an outside surface is one first concave surface 120.The die cast aspherical plastic lens 2 but male model benevolence 10 matches with mother module core 12 makes it have second convex surface 20 and second concave surface 22.
As shown in Figures 3 and 4, the present invention adopts electrocasting method to form the die of non-spherical lens.Present embodiment is an example with preparation male model benevolence 10, and the present invention 50 provides many plastic basis materials 3 with aspheric surface end face 30 at first set by step, and the aspheric surface end face 30 of this plastic basis material 3 is similar to first convex surface 100 of male model benevolence 10 by mechanical cutting one-tenth.Then, 51 provide a porous pedestal 4 more set by step, have a plurality of holes 42, above-mentioned many plastic basis materials 3 are inserted respectively in these porous pedestal 4 respective aperture 42, the aspheric surface end face 30 of this plastic basis material 3 exposes porous pedestal 4 outsides, forms a plastic basis material array.Afterwards, 52 carry out the surface degreasing cleaning set by step, place 5% ZnCl solution to soak the pool 5 minutes this array, with after washing, make the sensitizing agent of plastic basis material surface adsorption be hydrolyzed to alkaline ZnCl solution, thereby form the active center that is evenly distributed on the plastic basis material surface,, can in solution, add some zinc granules for preventing the zine ion oxidation.Then, step 53 forms metal conducting layer 31, adopts single spray gun earlier silver salt solution and reductive agent to be plated indoor uniform mixing at liquid, and then evenly is ejected into the aspheric surface end face 30 of these plastic basis materials 3, reaction generates silvered film rapidly, promptly forms metal conducting layer 31 (as shown in Figure 5).Then, step 54 is carried out electroforming, as shown in Figure 5, one electroforming apparatus 6 is provided, comprise an electrotyping bath 60, a metal base 61 and a power supply 62, power supply 62 has an anode 620 and a negative electrode 622, be equipped with the electroforming solution of predetermined amount in the electrotyping bath 60, the above-mentioned plastic basis material array that has generated metal conducting layer 31 is inserted in the electrotyping bath 60, anode 620 is connected with metal base 61, negative electrode 622 is connected with the metal conducting layer 31 of plastic basis material 3, and feeds the galvanic current of 2～15A/dm2, carries out electroforming; Step 55, after electroforming after a while, metal ion electricity by metal base 61 is led orientation, thereby between the metal conducting layer 31 of these plastic bases 3 and metal base 61, form an electroforming settled layer 32 gradually, electroforming settled layer 32 is closely as one by intermetallic bonding force with metal conducting layer 31, promptly obtains male model benevolence 10 matrix sequences of required non-spherical lens.
Above-mentioned plastic basis material 3 materials are optional from polyvinyl chloride, Vinyl Acetate Copolymer, Resins, epoxy, silicon rubber etc.
Above-mentioned metal base 61 materials can be selected from nickel-base alloy, cobalt base alloy, ferrous alloy, stainless steel or tool steel etc.
Above-mentioned electroforming solution can be nickel sulfamic acid (Nickel Sulfamate, Ni (SO
3NH
2)) and boric acid (H
3BO
2) mixed solution or the respective metal salts solution of metal base 61.
Be appreciated that, the preparation of the mother module core 12 of non-spherical lens 2 of the present invention can be similar to first concave surface 120 of mother module core 12 by mechanical cutting one-tenth with the aspheric surface end face 30 of many plastic basis materials 3, place the second porous pedestal 8 then, make mother module core 12 matrix sequences of its electroforming formation of deposits non-spherical lens.
The present invention also provides a kind of method that adopts heat pressing process to form aspherical plastic lens.As shown in Figure 6, at first provide a plastic plate 7 that is used to make aspherical plastic lens, with these plastic plate 7 pre-thermal softenings; Then, be placed between the male and female die matrix sequence of above-mentioned non-spherical lens pressurization again, matched moulds, die sinking promptly forms aspherical plastic lens matrix 9, at last, this aspherical plastic lens matrix 9 is cut, can obtain a plurality of aspherical plastic lenses 2.
Above-mentioned plastic plate 7 materials must be the clear plastics material, optional from polymethylmethacrylate (Polymethyl Methacrylate, PMMA), polystyrene (Polystyrene, PS), polycarbonate (Polycarbonate, PC), the multipolymer (NBS) of vinylbenzene and CALCIUM ACRYLATE and allyl diglycol carbonic ether (Allyl diglycol carbonate, CR-39) etc.
Claims (10)
1. the manufacture method of a non-spherical lens die is characterized in that may further comprise the steps:
Many plastic basis materials with aspheric surface end face are provided;
One porous pedestal is provided, has a plurality of holes, above-mentioned many plastic basis materials are inserted respectively in the respective aperture of this porous pedestal, form a plastic basis material array;
On the aspheric surface end face of this plastic basis material, form metal conducting layer;
One electroforming apparatus is provided, the plastic basis material array is carried out electroforming, promptly obtain the die matrix sequence of non-spherical lens.
2. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: the die of this non-spherical lens comprises male model benevolence and mother module core.
3. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: this electroforming apparatus comprises a power supply, a metal base and an electrotyping bath, and wherein this power supply comprises an anode and a negative electrode.
4. the manufacture method of non-spherical lens die as claimed in claim 3 is characterized in that: this anode is connected with metal base, and negative electrode is connected with the metal conducting layer of plastic basis material.
5. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: generate an electroforming settled layer on the metal conducting layer, this electroforming settled layer and metal conducting layer are combined closely.
6. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: this plastic basis material material is optional from polyvinyl chloride, Vinyl Acetate Copolymer, Resins, epoxy, silicon rubber etc.
7. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: be equipped with the electroforming solution of predetermined amount in the electrotyping bath, this electroforming solution can be the mixing solutions of nickel sulfamic acid and boric acid or the respective metal salts solution of metal base.
8. the manufacture method of non-spherical lens die as claimed in claim 1 is characterized in that: the material of this metal base can be selected from nickel-base alloy, cobalt base alloy, ferrous alloy, stainless steel or tool steel etc.
9. method of utilizing the described die of claim 1 to make aspherical plastic lens is characterized in that may further comprise the steps:
One plastic plate is provided, it is carried out pre-thermal softening;
The die matrix sequence of one non-spherical lens is provided, and plastic plate is placed this die matrix sequence above-mentioned, pressurization, matched moulds, die sinking obtains an aspherical plastic lens matrix;
Above-mentioned non-spherical lens plastics matrix is cut, can obtain a plurality of plastic aspherical element lens.
10. the method for utilizing the described die of claim 1 to make aspherical plastic lens as claimed in claim 9 is characterized in that: optional multipolymer and the allyl diglycol carbonic ether etc. from polymethylmethacrylate, polystyrene, polycarbonate, vinylbenzene and CALCIUM ACRYLATE of plastic plate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031469221A CN100516316C (en) | 2003-09-20 | 2003-09-20 | Non-spherical plastic lens and Manufacturing method of module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031469221A CN100516316C (en) | 2003-09-20 | 2003-09-20 | Non-spherical plastic lens and Manufacturing method of module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598070A true CN1598070A (en) | 2005-03-23 |
| CN100516316C CN100516316C (en) | 2009-07-22 |
Family
ID=34659725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031469221A Expired - Fee Related CN100516316C (en) | 2003-09-20 | 2003-09-20 | Non-spherical plastic lens and Manufacturing method of module thereof |
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| Country | Link |
|---|---|
| CN (1) | CN100516316C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960130A (en) * | 2015-07-23 | 2015-10-07 | 长沙理工大学 | Precise hot press molding mold for small-opening-diameter aspheric-surface glass lens |
| CN106626097A (en) * | 2016-12-13 | 2017-05-10 | 莱特巴斯光学仪器（镇江）有限公司 | Production technology for asymmetric lenses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440798A (en) * | 1994-01-18 | 1995-08-15 | Gentex Optics, Inc. | Method of making concave aspheric bifocal mold component |
| JP3271707B2 (en) * | 1999-11-19 | 2002-04-08 | 財団法人工業技術研究院 | Method for manufacturing mold with high dimensional accuracy and method for manufacturing separated type optical fiber connector ferrule |
| JP2002332588A (en) * | 2001-05-07 | 2002-11-22 | Hikari Tekku Kk | Method of manufacturing high-accuracy tubular parts by electroforming |
-
2003
- 2003-09-20 CN CNB031469221A patent/CN100516316C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960130A (en) * | 2015-07-23 | 2015-10-07 | 长沙理工大学 | Precise hot press molding mold for small-opening-diameter aspheric-surface glass lens |
| CN106626097A (en) * | 2016-12-13 | 2017-05-10 | 莱特巴斯光学仪器（镇江）有限公司 | Production technology for asymmetric lenses |
| CN106626097B (en) * | 2016-12-13 | 2018-07-27 | 莱特巴斯光学仪器（镇江）有限公司 | A kind of production technology of asymmetric lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100516316C (en) | 2009-07-22 |
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