CN103435274A - Pipe cap with glass lens optical window and manufacturing method of pipe cap - Google Patents
Pipe cap with glass lens optical window and manufacturing method of pipe cap Download PDFInfo
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- CN103435274A CN103435274A CN2013103765369A CN201310376536A CN103435274A CN 103435274 A CN103435274 A CN 103435274A CN 2013103765369 A CN2013103765369 A CN 2013103765369A CN 201310376536 A CN201310376536 A CN 201310376536A CN 103435274 A CN103435274 A CN 103435274A
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Abstract
The invention provides a manufacturing method of a pipe cap with a glass lens optical window. The pipe cap with the glass lens optical window comprises a metal pipe cap and a glass optical window, wherein a light hole is formed in the upper end of the metal pipe cap, and a glass lens is embedded in the light hole so as to form the glass optical window. The innovation of the pipe cap with the glass lens optical window lies in that after glass is liquefied, the liquefied glass is molded in the metal pipe cap by using a mold so as to form the glass lens. The pipe cap with the glass lens optical window has the beneficial effects that a packaging process of the glass optical window and the metal pipe cap and a forming process of the glass optical window are finished once, the optical property of the glass optical window and the connection firmness between the glass optical window and the metal pipe cap are very good, processing equipment is simple, and the cost is low.
Description
Technical field
The present invention relates to a kind of manufacturing technology of package casing, relate in particular to a kind of pipe cap with the glass lens optical window and preparation method thereof.
Background technology
Optical transceiving device is device important in the modern project field, and the optical window quality on optical transceiving device is the important factor that determines the optical transceiving device quality.Optical window on optical transceiving device is generally by being arranged at lens light window shape on package casing, and this wherein relates to two kinds of techniques, one, the forming technique of lens optical window itself, its two, the encapsulation technology between package casing and lens optical window;
Existing lens optical window forming technique mainly contains the techniques such as cold working lens, moulded lens, injection moulding lens, and existing encapsulation technology mainly contains low temperature glass sealing-in, metallization soldering, the technique such as gluing.Problems of the prior art are:
At first, prior art, when the pipe cap of processing belt glass lens optical window, needs first to lens optical window and pipe cap, to carry out independent processing, and then by packaging process independently, the two is packaged together, and operation is many, troublesome poeration;
Secondly, for concrete lens optical window forming technique, there is following defect in prior art: 1) cold working lens technique be by modes such as grinding, polishings by glass lens machine-shaping, not only operation is tediously long for this processing mode, inefficiency, and is not suitable for making minute sized lens;
2) moulded lens technique is by glass blank hot press moulding moulding in mould, although can accurately realize Lens Design face type, equipment and the technological investment of this technique are large, and cost is very high;
3) injection moulding lens technique is generally for plastic lens, although with low cost, due to the inherent defect of plastic material itself, cause the optics of lens surface quality not good enough, and the plastics thermal adaptability is poor, easily aging, the decay of device optical property is very fast, is difficult to life-time service;
Again, encapsulation technology for lens optical window and package casing, there is following defect in prior art: 1) the low temperature glass sealing process be with low temperature glass solder by the sealing-in of lens optical window on sealing supporting structure, sealing temperature is lower than the softening temperature of optical window, although can the parameter of optical window lens itself not impacted in the course of processing, but the firm welding of glass solder and supporting structure is very poor, cause the stability that is connected between lens optical window and package casing also very poor, the lens optical window easily in use comes off, while especially being applied on those devices that self have vibration, problem is very outstanding,
2) adhesion process is that the lens optical window of moulding is bonded on sealing supporting structure with organic glue, although this technique is simple, gummous substance has that thermal adaptability is poor, the easy shortcoming such as aging, is difficult to guarantee the permanent stability of structure;
3) the metallization soldering be use solder by the soldering of molded lens optical window on sealing supporting structure, before soldering, need the metallization of lens optical window sealing surface, process costs is higher, metal layer partly need adopt the noble metal material, cost of manufacture is higher.
As previously mentioned, owing to there being many disadvantages in prior art, therefore be necessary the manufacture craft of the pipe cap with the lens optical window is transformed.
Summary of the invention
For the problem in background technology, the present invention proposes a kind of making method of the pipe cap with the glass lens optical window, the described pipe cap with the glass lens optical window is comprised of metal pipe cap and glass optical window, and the metal pipe cap upper end is provided with light hole, and glass lens is embedded in light hole and forms the glass optical window; Its innovation is: make as follows the pipe cap with the glass lens optical window:
1) prefabricated glass block and metal pipe cap are standby;
2) be socketed mould in metal pipe cap, then glass block be positioned over to the mould upper surface; Described mold shape is cylindrical, and the mould upper surface is lower than the metal pipe cap upper surface; The structure that glass block, metal pipe cap and mould three form forms blank;
3) blank is sent in High Temperature Furnaces Heating Apparatus, passed into wet nitrogen in High Temperature Furnaces Heating Apparatus, in High Temperature Furnaces Heating Apparatus, temperature is 700 ℃ ~ 800 ℃;
4) glass block is fused into liquid state in High Temperature Furnaces Heating Apparatus, and liquid glass is the space-filling of metal pipe cap inner mold top, and the liquid glass surface forms convex surface under surface tension effects, after liquid glass stops flowing, blank is taken out; Form the glass optical window after liquid glass is cooling, obtain the pipe cap with the glass lens optical window after mold removal.
The principle of aforementioned schemes is: those skilled in the art should be understood that, formed liquid phase glass after the glass melting of solid phase, can under the self gravitation effect, occur flowing, and liquid phase glass also has the character of surface tension of liquid, the present invention utilizes aforementioned two kinds of principles, and making glass block automatic moulding after high temperature melting is glass lens; In addition, the present invention has also utilized the similar principle that mixes to improve the stability that the glass optical window is connected with metal pipe cap: metal pipe cap under hot conditions with after wet nitrogen contacts, the metal pipe cap surface forms zone of oxidation under oxygenizement, glass also belongs to oxide compound, when liquid phase glass with after zone of oxidation on metal pipe cap contacts, the two can form contact very closely, after the liquid phase glass cools is solid phase, has just formed between glass and metal pipe cap very firmly and has connected; The method technique is simple, very low to the dependency of equipment, only needs common High Temperature Furnaces Heating Apparatus and simple mould and handling equipment to get final product, and the smooth surface of formed glass optical window is mellow and full, and product are mutually splendid.
Preferably, described mould adopts graphite or wolfram varbide to make.The material of mould is selected, only need meet in principle not sticky glutinous the getting final product of mould and glass, in numerous materials, first-selected moulding stock when wolfram varbide is processing high quality glass optical window, it can separate fully with glass after the moulding of glass optical window, can not stay defect at glass surface; Graphite low price and processibility are better, it can be made as to mould for the processed glass optical window equally, but compare with wolfram varbide, there is certain defect in the mould that graphite-made is made, be graphite jig with can be at the residual lower graphite granule of glass surface after glass separates, but can remove by simple renovation technique; Those skilled in the art, when concrete definite moulding stock, can consider the factors such as material cost, process costs, product quality as the case may be, rationally determine.
In prior art, the form of glass optical window generally has two kinds, i.e. plano-convex lens and biconvex lens, and in order to adapt to the process requirements of these two types of lens, the present invention has also done following improvement: described mould upper surface is plane or concave surface.When the mould upper surface is plane, the upper surface of liquid phase glass can be at self-assembling formation convex surface under surface tension effects, and the lower surface of liquid phase glass can form plane under the position-limiting action of mould, can obtain plano-convex lens; When the mould upper surface is concave surface, the upper surface of liquid phase glass can be at self-assembling formation convex surface under surface tension effects, and simultaneously, the lower surface of liquid phase glass also can form convex surface under the position-limiting action of mould, thereby obtains the glass optical window of biconvex lens structure.
For graphite jig, due to meeting at the residual lower graphite granule of glass surface, in order further to improve glass optical window quality, also can to the defect on the glass optical window, be repaired by following preferred version: when described mould adopts graphite, after the operation of step 4) completes, glass optical window medial surface is cleaned, then will be placed in the pipe cap of glass lens optical window at the temperature of 600 ℃ ~ 650 ℃, until glass optical window medial surface, become after smooth and take out.When the glass optical window is cleaned, can adopt hydrofluoric acid, by hydrofluoric acid, by the glass surface partial corrosion, allow graphite granule lose facies posterior hepatis, thereby graphite granule is removed; Due to the corrosive nature of acid solution, may make the slickness of glass surface descend, therefore also, pipe cap should be placed at the temperature of 600 ℃ ~ 650 ℃, make glass surface become smooth.
Element manufacturing is rear (after the operation of step 4) completes) well, can, according to the concrete application demand of device, adopt conventional electroplating technology metallic diaphragm on the metal pipe cap plated surface.
The pipe cap with the glass lens optical window obtained by aforementioned technique of the present invention, compared with prior art, its agent structure still is comprised of metal pipe cap and glass optical window; The metal pipe cap upper end is provided with light hole, and glass lens is embedded in light hole and forms the glass optical window; It is different from the prior art part: there is the zone of oxidation formed after wet oxidation of nitrogen is processed on described metal pipe cap surface, described glass lens by forming through mould is moulding after glass liquefaction in metal pipe cap, and described glass lens closely is connected with the zone of oxidation of metal pipe cap inwall; This is with the pipe cap of glass lens optical window, the packaging process of its glass optical window and metal pipe cap and the moulding process of glass optical window once complete, and the connectivity robustness of glass optical window and metal pipe cap is fine, tooling cost is very low, and is particularly suitable for undersized glass optical window processing.
Useful technique effect of the present invention is: the moulding process of the packaging process of glass optical window and metal pipe cap and glass optical window once completes, and the optical and glass optical window of glass optical window and the connectivity robustness of metal pipe cap are all fine, and processing units is simple, with low cost.
The accompanying drawing explanation
Blank structural representation when Fig. 1, processing plano-convex lens (being the front glass block of fusing in figure shown in mark A);
The device architecture schematic diagram of Fig. 2, plano-convex lens structure;
Blank structural representation when Fig. 3, processing biconvex lens;
The device architecture schematic diagram of Fig. 4, biconvex lens structure.
Embodiment
A kind of making method of the pipe cap with the glass lens optical window, the described pipe cap with the glass lens optical window is comprised of metal pipe cap 1 and glass optical window 2, and metal pipe cap 1 upper end is provided with light hole, and glass lens is embedded in light hole and forms glass optical window 2; Its innovation is: make as follows the pipe cap with the glass lens optical window:
1) prefabricated glass block and metal pipe cap 1 are standby;
2), at the interior socket mould 3 of metal pipe cap 1, then glass block is positioned over to mould 3 upper surfaces; Described mould 3 is shaped as cylindrical, and mould 3 upper surfaces are lower than metal pipe cap 1 upper surface; The structure that glass block, metal pipe cap 1 and mould 3 threes form forms blank;
3) blank is sent in High Temperature Furnaces Heating Apparatus, passed into wet nitrogen in High Temperature Furnaces Heating Apparatus, in High Temperature Furnaces Heating Apparatus, temperature is 700 ℃ ~ 800 ℃;
4) glass block is fused into liquid state in High Temperature Furnaces Heating Apparatus, and liquid glass is the space-filling of metal pipe cap 1 inner mold 3 tops, and the liquid glass surface forms convex surface under surface tension effects, after liquid glass stops flowing, blank is taken out; Form glass optical window 2 after liquid glass is cooling, obtain the pipe cap with the glass lens optical window after mold removal 3.
Further, described mould 3 adopts graphite or wolfram varbide to make.
Further, described mould 3 upper surfaces are plane or concave surface.
Further, when described mould 3 adopts graphite, after the operation of step 4) completes, glass optical window 2 medial surfaces are cleaned, then will be placed in the pipe cap of glass lens optical window at the temperature of 600 ℃ ~ 650 ℃, and until glass optical window 2 medial surfaces, become after smooth and take out.
Further, after the operation of step 4) completes, adopt electroplating technology metallic diaphragm on metal pipe cap 1 plated surface.
A kind of pipe cap with the glass lens optical window, the described pipe cap with the glass lens optical window is comprised of metal pipe cap 1 and glass optical window 2; Metal pipe cap 1 upper end is provided with light hole, and glass lens is embedded in light hole and forms glass optical window 2; Its difference is: there is the zone of oxidation formed after wet oxidation of nitrogen is processed on described metal pipe cap 1 surface, described glass lens is by forming through mould 3 is moulding metal pipe cap 1 is interior after glass liquefaction, and described glass lens closely is connected with the zone of oxidation of metal pipe cap 1 inwall.
Claims (6)
1. the making method with the pipe cap of glass lens optical window, the described pipe cap with the glass lens optical window is comprised of metal pipe cap (1) and glass optical window (2), metal pipe cap (1) upper end is provided with light hole, and glass lens is embedded in light hole and forms glass optical window (2); It is characterized in that: make as follows the pipe cap with the glass lens optical window:
1) prefabricated glass block and metal pipe cap (1) are standby;
2) socket mould (3) in metal pipe cap (1), then be positioned over glass block mould (3) upper surface; Described mould (3) is shaped as cylindrical, and mould (3) upper surface is lower than metal pipe cap (1) upper surface; The structure that glass block, metal pipe cap (1) and mould (3) three form forms blank;
3) blank is sent in High Temperature Furnaces Heating Apparatus, passed into wet nitrogen in High Temperature Furnaces Heating Apparatus, in High Temperature Furnaces Heating Apparatus, temperature is 700 ℃ ~ 800 ℃;
4) glass block is fused into liquid state in High Temperature Furnaces Heating Apparatus, and liquid glass is the space-filling of metal pipe cap (1) inner mold (3) top, and the liquid glass surface forms convex surface under surface tension effects, after liquid glass stops flowing, blank is taken out; Form glass optical window (2) after liquid glass is cooling, mold removal obtains the pipe cap with the glass lens optical window after (3).
2. the making method of the pipe cap with the glass lens optical window according to claim 1, is characterized in that: described mould (3) employing graphite or wolfram varbide making.
3. the making method of the pipe cap with the glass lens optical window according to claim 1, it is characterized in that: described mould (3) upper surface is plane or concave surface.
4. the making method of the pipe cap with the glass lens optical window according to claim 2, it is characterized in that: when described mould (3) adopts graphite, after the operation of step 4) completes, glass optical window (2) medial surface is cleaned, then will be placed in the pipe cap of glass lens optical window at the temperature of 600 ℃ ~ 650 ℃, until the smooth rear taking-up that becomes of glass optical window (2) medial surface.
5. the making method of the pipe cap with the glass lens optical window according to claim 1, is characterized in that: after the operation of step 4) completes, adopt electroplating technology metallic diaphragm on metal pipe cap (1) plated surface.
6. the pipe cap with the glass lens optical window, the described pipe cap with the glass lens optical window is comprised of metal pipe cap (1) and glass optical window (2); Metal pipe cap (1) upper end is provided with light hole, and glass lens is embedded in light hole and forms glass optical window (2); It is characterized in that: there is the zone of oxidation formed after wet oxidation of nitrogen is processed on described metal pipe cap (1) surface, described glass lens by after glass liquefaction in metal pipe cap (1) through moulding the forming of mould (3), described glass lens closely is connected with the zone of oxidation of metal pipe cap (1) inwall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103765369A CN103435274A (en) | 2013-08-27 | 2013-08-27 | Pipe cap with glass lens optical window and manufacturing method of pipe cap |
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| CN2013103765369A CN103435274A (en) | 2013-08-27 | 2013-08-27 | Pipe cap with glass lens optical window and manufacturing method of pipe cap |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690038A (en) * | 2016-03-29 | 2016-06-22 | 中国电子科技集团公司第四十四研究所 | Method for manufacturing anti-high load cap |
| CN106707725A (en) * | 2017-01-20 | 2017-05-24 | 中国电子科技集团公司第十二研究所 | Optical transmission window for atomic clock |
| CN108002716A (en) * | 2017-10-26 | 2018-05-08 | 潮州三环（集团）股份有限公司 | Lens pipe cap production method |
| CN111360434A (en) * | 2019-12-30 | 2020-07-03 | 西南技术物理研究所 | Method for manufacturing pipe cap welded by using glass solder |
| CN111825306A (en) * | 2020-07-24 | 2020-10-27 | 南京迈得特光学有限公司 | One-step compression molding process for optical communication element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103214192A (en) * | 2013-04-17 | 2013-07-24 | 内蒙古科技大学 | Industrial wearable anti-corrosion glass ceramic composite bent pipe and manufacturing method thereof |
| CN103214191A (en) * | 2013-04-08 | 2013-07-24 | 中国电子科技集团公司第四十四研究所 | Manufacturing process of pipe cap of micro-sphere-lens as well as pipe cap of micro-sphere-lens |
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2013
- 2013-08-27 CN CN2013103765369A patent/CN103435274A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214191A (en) * | 2013-04-08 | 2013-07-24 | 中国电子科技集团公司第四十四研究所 | Manufacturing process of pipe cap of micro-sphere-lens as well as pipe cap of micro-sphere-lens |
| CN103214192A (en) * | 2013-04-17 | 2013-07-24 | 内蒙古科技大学 | Industrial wearable anti-corrosion glass ceramic composite bent pipe and manufacturing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690038A (en) * | 2016-03-29 | 2016-06-22 | 中国电子科技集团公司第四十四研究所 | Method for manufacturing anti-high load cap |
| CN106707725A (en) * | 2017-01-20 | 2017-05-24 | 中国电子科技集团公司第十二研究所 | Optical transmission window for atomic clock |
| CN106707725B (en) * | 2017-01-20 | 2022-07-22 | 中国电子科技集团公司第十二研究所 | Optical transmission window for atomic clock |
| CN108002716A (en) * | 2017-10-26 | 2018-05-08 | 潮州三环（集团）股份有限公司 | Lens pipe cap production method |
| CN108002716B (en) * | 2017-10-26 | 2020-07-28 | 潮州三环（集团）股份有限公司 | Method for manufacturing lens tube cap |
| CN111360434A (en) * | 2019-12-30 | 2020-07-03 | 西南技术物理研究所 | Method for manufacturing pipe cap welded by using glass solder |
| CN111825306A (en) * | 2020-07-24 | 2020-10-27 | 南京迈得特光学有限公司 | One-step compression molding process for optical communication element |
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Application publication date: 20131211 |