CN103073173A - Aspherical glass lens manufacturing method - Google Patents
Aspherical glass lens manufacturing method Download PDFInfo
- Publication number
- CN103073173A CN103073173A CN2013100163540A CN201310016354A CN103073173A CN 103073173 A CN103073173 A CN 103073173A CN 2013100163540 A CN2013100163540 A CN 2013100163540A CN 201310016354 A CN201310016354 A CN 201310016354A CN 103073173 A CN103073173 A CN 103073173A
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- CN
- China
- Prior art keywords
- die
- parison
- glass lens
- moulding
- aspheric surface
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- 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
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses an aspherical glass lens manufacturing method which comprises the following steps: a, placing a glass pipe into a furnace to heat to a temperature of 1,300 DEG C to 1,600 DEG C for 1 to 2 minutes; b, placing a preheated glass semifinished product into a die core of a lower die, filling nitrogen into a quartz glass tube to prevent a die from being oxidized at high temperature, then heating the die and the glass semifinished product to a die pressing temperature by an infrared ray lamp, and slowly closing an upper die and the lower die so as to enable the glass semifinished product to be compressed and formed; c, taking out a formed product, gradually cooking the product by a fan and releasing internal stress; e, carrying out annealing processing for 8 to 10 hours at a temperature of 500 DEG C to 600 DEG C; and e, carrying out trimming forming, i.e. finishing, polishing and carrying out edge cutting. The aspherical glass lens manufacturing method provided by the invention has a simple and convenient process and is low in production cost.
Description
Technical field
The present invention relates to a kind of aspheric surface glass lens manufacture method.
Background technology
Spherical lens refers to have constant curvature to the edge from the center of lens, recurs variation but not the ball lens then are curvature from the center to the edge.The aspheric surface glass lens is widely used in optics, photoelectricity and opto-mechanical system because having good optical property and image quality, having eliminated the volume and weight that sphere had differed, increased light transmission, reduced optical system.Thereby the workload that non-ball and lens can simplify optical system structure, reduced volume, weight reduction, saving material, reduced optical element plated film and workpiece assembling reduces cost.But also improved the performance of optical system, improved the quality of optical imagery.Aspheric surface optical accessory is widely applied in fields such as astronomical telescope, phtographic lens, camera view finder, motion picture projection lens, ophthalmology and other Medical Instruments, CCD pick-up lens, duplicating machine optical systems.
But the processing of traditional aspheric surface glass lens need to lens blank after the processing of some roads corase grind program, just can make optical element reach higher dimensional precision, surface figure accuracy and surface smoothness through operations such as correct grinding, polishings because blank dimension is large again; Whole work flow needs a large amount of production unit, frock auxiliary material, plant area and masterful technique workman, and production cost is high.
Summary of the invention
Technical problem to be solved by this invention is: a kind of simple process, aspheric surface glass lens manufacture method that production cost is low are provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of aspheric surface glass lens manufacture method, and its step is as follows:
A. glass tubing is put in the stove and heated, be warmed to 1300 ℃-1600 ℃, the time is 1-2 minute;
B. the parison of preheating is put into the counterdie core rod, in quartz glass tube, pass into nitrogen, prevent that the high temperature bed die is oxidized; Then, mould and parison are heated to molding temperature by infrared(ray)lamp; Then, slowly closed upper die and lower die make the compressed moulding of parison;
C. the product after the moulding is taken out, progressively cool off and discharge internal stress through blower fan;
D. anneal temperature: 500 ℃-600 ℃, the time is 8～10h;
E. repair moulding, comprising: correct grinding, polishing, side cut.
A kind of aspheric surface glass lens manufacture method, its step is as follows:
A. glass tubing is put in the stove and heated, be warmed to 1450 ℃, the time is 1 minute;
B. the parison of preheating is put into the counterdie core rod, in quartz glass tube, pass into nitrogen, prevent that the high temperature bed die is oxidized; Then, mould and parison are heated to molding temperature by infrared(ray)lamp; Then, slowly closed upper die and lower die make the compressed moulding of parison;
C. the product after the moulding is taken out, progressively cool off and discharge internal stress through blower fan;
D. anneal temperature: 550 ℃, the time is 8h;
E. repair moulding, comprising: correct grinding, polishing, side cut.
Described mold material is wolfram varbide.
Described correct grinding uses diamond-impregnated wheel.
The polishing wheel of polypropylene material is used in described polishing.
The invention has the beneficial effects as follows: owing to only needing one mold pressing procedure can obtain blank, can save a large amount of production units, frock auxiliary material, plant area and masterful technique workman; And compression molding can reduce follow-up required amount of finish, has solved because common blank dimension causes greatly roughly grinding the problem of operation length how consuming time, has improved production efficiency; As long as accurately control the processing parameters such as temperature and pressure in the compression molding process, just can guarantee dimensional precision and the repeatable accuracy of the blank of compression molding, can realize non-spherical lens high-level efficiency, high precision batch production.
Embodiment
The below describes preferred specific embodiments of the present invention in detail.
A kind of aspheric surface glass lens manufacture method, its step is as follows:
A. glass tubing is put in the stove and heated, be warmed to 1450 ℃, the time is 1 minute;
B. select the mould of tungsten carbide material, the parison of preheating is put into the counterdie core rod, in quartz glass tube, pass into nitrogen, prevent that the high temperature bed die is oxidized; Then, mould and parison are heated to molding temperature by infrared(ray)lamp; Then, slowly closed upper die and lower die make the compressed moulding of parison;
C. the product after the moulding is taken out, progressively cool off and discharge internal stress through blower fan;
D. anneal temperature: 550 ℃, the time is 8h;
E. repair moulding, comprising: use diamond-impregnated wheel to finish grind, use the polishing wheel of polypropylene material to polish, cut edge.
Owing to only needing one mold pressing procedure can obtain blank, can save a large amount of production units, frock auxiliary material, plant area and masterful technique workman; And compression molding can reduce follow-up required amount of finish, has solved because common blank dimension causes greatly roughly grinding the problem of operation length how consuming time, has improved production efficiency; As long as accurately control the processing parameters such as temperature and pressure in the compression molding process, just can guarantee dimensional precision and the repeatable accuracy of the blank of compression molding, can realize non-spherical lens high-level efficiency, high precision batch production.
Claims (5)
1. aspheric surface glass lens manufacture method, its step is as follows:
A. glass tubing is put in the stove and heated, be warmed to 1300 ℃-1600 ℃, the time is 1-2 minute;
B. the parison of preheating is put into the counterdie core rod, in quartz glass tube, pass into nitrogen, prevent that the high temperature bed die is oxidized; Then, mould and parison are heated to molding temperature by infrared(ray)lamp; Then, slowly closed upper die and lower die make the compressed moulding of parison;
C. the product after the moulding is taken out, progressively cool off and discharge internal stress through blower fan;
D. anneal temperature: 500 ℃-600 ℃, the time is 8～10h;
E. repair moulding, comprising: correct grinding, polishing, side cut.
2. a kind of aspheric surface glass lens manufacture method as claimed in claim 1, its step is as follows:
A. glass tubing is put in the stove and heated, be warmed to 1450 ℃, the time is 1 minute;
B. the parison of preheating is put into the counterdie core rod, in quartz glass tube, pass into nitrogen, prevent that the high temperature bed die is oxidized; Then, mould and parison are heated to molding temperature by infrared(ray)lamp; Then, slowly closed upper die and lower die make the compressed moulding of parison;
C. the product after the moulding is taken out, progressively cool off and discharge internal stress through blower fan;
D. anneal temperature: 550 ℃, the time is 8h;
E. repair moulding, comprising: correct grinding, polishing, side cut.
3. a kind of aspheric surface glass lens manufacture method as claimed in claim 1 or 2, it is characterized in that: described mold material is wolfram varbide.
4. a kind of aspheric surface glass lens manufacture method as claimed in claim 1 or 2 is characterized in that: described correct grinding use diamond-impregnated wheel.
5. a kind of aspheric surface glass lens manufacture method as claimed in claim 1 or 2 is characterized in that: the polishing wheel of described polishing use polypropylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100163540A CN103073173A (en) | 2013-01-16 | 2013-01-16 | Aspherical glass lens manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100163540A CN103073173A (en) | 2013-01-16 | 2013-01-16 | Aspherical glass lens manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN103073173A true CN103073173A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100163540A Pending CN103073173A (en) | 2013-01-16 | 2013-01-16 | Aspherical glass lens manufacturing method |
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| CN (1) | CN103073173A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107686228A (en) * | 2017-09-11 | 2018-02-13 | 成都随如科技有限公司 | A kind of molding device of non-spherical lens and preparation method thereof |
| CN107686227A (en) * | 2017-09-11 | 2018-02-13 | 成都随如科技有限公司 | A kind of preparation method of lens blank |
| CN111253052A (en) * | 2020-04-09 | 2020-06-09 | 宜宾钢猫科技有限公司 | Automatic glass lens hot-press molding system and molding method |
| CN113477810A (en) * | 2021-07-19 | 2021-10-08 | 东莞市微科光电科技有限公司 | Mould pressing method for metal equipment |
| CN113770668A (en) * | 2021-10-13 | 2021-12-10 | 湖南大学 | Method for preparing optical glass super-hydrophobic functional surface by utilizing hot press molding |
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| JPH04154636A (en) * | 1990-10-17 | 1992-05-27 | Toshiba Mach Co Ltd | Apparatus for forming glass lens |
| JP2001253722A (en) * | 2000-03-09 | 2001-09-18 | Toshiba Mach Co Ltd | Optical element forming device |
| US20010054301A1 (en) * | 2000-06-27 | 2001-12-27 | Satoshi Fukuyama | Press forming machine for optical devices |
| CN1730419A (en) * | 2004-08-06 | 2006-02-08 | 鸿富锦精密工业（深圳）有限公司 | Aspheric surface glass lens stamper and manufacture method |
| CN1778734A (en) * | 2004-11-19 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Heater of moulded glass |
| CN101544462A (en) * | 2008-03-28 | 2009-09-30 | 富士能株式会社 | Molding method and device |
| CN101624257A (en) * | 2008-07-07 | 2010-01-13 | 郑正元 | Heating processing and equipment thereof for molded glass |
-
2013
- 2013-01-16 CN CN2013100163540A patent/CN103073173A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04154636A (en) * | 1990-10-17 | 1992-05-27 | Toshiba Mach Co Ltd | Apparatus for forming glass lens |
| JP2001253722A (en) * | 2000-03-09 | 2001-09-18 | Toshiba Mach Co Ltd | Optical element forming device |
| US20010054301A1 (en) * | 2000-06-27 | 2001-12-27 | Satoshi Fukuyama | Press forming machine for optical devices |
| CN1730419A (en) * | 2004-08-06 | 2006-02-08 | 鸿富锦精密工业（深圳）有限公司 | Aspheric surface glass lens stamper and manufacture method |
| CN1778734A (en) * | 2004-11-19 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Heater of moulded glass |
| CN101544462A (en) * | 2008-03-28 | 2009-09-30 | 富士能株式会社 | Molding method and device |
| CN101624257A (en) * | 2008-07-07 | 2010-01-13 | 郑正元 | Heating processing and equipment thereof for molded glass |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107686228A (en) * | 2017-09-11 | 2018-02-13 | 成都随如科技有限公司 | A kind of molding device of non-spherical lens and preparation method thereof |
| CN107686227A (en) * | 2017-09-11 | 2018-02-13 | 成都随如科技有限公司 | A kind of preparation method of lens blank |
| CN111253052A (en) * | 2020-04-09 | 2020-06-09 | 宜宾钢猫科技有限公司 | Automatic glass lens hot-press molding system and molding method |
| CN111253052B (en) * | 2020-04-09 | 2023-10-31 | 宜宾钢猫科技有限公司 | Automatic glass lens hot press molding system and molding method |
| CN113477810A (en) * | 2021-07-19 | 2021-10-08 | 东莞市微科光电科技有限公司 | Mould pressing method for metal equipment |
| CN113770668A (en) * | 2021-10-13 | 2021-12-10 | 湖南大学 | Method for preparing optical glass super-hydrophobic functional surface by utilizing hot press molding |
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Application publication date: 20130501 |