CN103214191A - Manufacturing process of pipe cap of micro-sphere-lens as well as pipe cap of micro-sphere-lens - Google Patents
Manufacturing process of pipe cap of micro-sphere-lens as well as pipe cap of micro-sphere-lens Download PDFInfo
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- CN103214191A CN103214191A CN201310122095XA CN201310122095A CN103214191A CN 103214191 A CN103214191 A CN 103214191A CN 201310122095X A CN201310122095X A CN 201310122095XA CN 201310122095 A CN201310122095 A CN 201310122095A CN 103214191 A CN103214191 A CN 103214191A
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- microsphere lens
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Abstract
The invention discloses a manufacturing process of a pipe cap of a micro-sphere-lens, wherein a glass blank for manufacturing the micro-sphere-lens is directly melted and formed on the pipe cap. The process specifically comprises the following steps of: 1) punch forming the pipe cap by a die, wherein an overflow-preventing slot for later use for determining the forming curvature of the micro-sphere is arranged in the periphery on the surface; cutting glass for manufacturing the micro-sphere-lens into glass columns for later use; 2) assembling the glass columns on the pipe cap, and melting, cooling and forming the glass columns on the pipe cap at 880-920 DEG C under protection of nitrogen, wherein the forming curvature of the micro-sphere is determined along the edge of the inner wall of the overflow-preventing slot; and 3) coating. According to the invention, the glass blank is directly melted on the pipe cap, so that the coupling element and the pipe cap are combined together, i.e., conventional lens light window forming technology is combined with a coupling technology, so that the process step is reduced, and the production efficiency is improved. Meanwhile, the pipe cap of the micro-sphere-lens manufactured is high in reliability and can pass military standard check of a common shell.
Description
Technical field
The present invention relates to a kind of microsphere lens pipe cap manufacture craft and this microsphere lens pipe cap.
Background technology
In opticfiber communication, optical transceiving device adopts this optical element of lens to be used as coupling element to carry out optical focus usually, also needs simultaneously lens are installed and fixed with supporting structure to connect.
Present existing lens optical window forming technique mainly contains cold-formed lens, the non-globe lens of mold pressing, injection moulding lens etc., and connection technique then adopts low temperature glass soldering, low-temperature alloy soldering, technology such as gluing to realize usually.
In concrete technology making processes, more or less have certain defective, be in particular in:
Cold-formed glass be with glass adopt car, mode such as grind, roll is processed as size, complex process, efficient is low;
The non-globe lens of mold pressing is with molded at the mould inner mould that designs behind the glass melting, can accurately realize glass design surface type, but this technology requires too high for processing unit, Mold Making, difficulty is bigger, cause cost of manufacture higher, unit price is more than dozens of yuan, and present domestic this technical products appearance that do not have as yet;
The lens injection moulding then is plastics spare, and is with low cost, but operating temperature range is narrow, has that intensity is low, a defective such as life-span weak point, poor reliability, luminous power are limited.
And the low temperature glass welding is to be welded on the supporting structure with the glass optical window of solder with moulding, and this technological temperature is lower than the softening temperature of light window glass, therefore can not cause the face type of glass optical window to change;
Adhesion process then adopts adhesive means that the glass optical window of moulding is bonded on the supporting structure, and its shortcoming mainly is that the linking intensity that causes of adhesive means is poor, the life-span short and integrity problem such as organic contamination;
The low-temperature alloy soldering is with the low-temperature alloy scolder formed glass optical window to be welded on the supporting structure, and this arts demand is the pre-treatment of metallizing of the face of weld of formed glass optical window, complex process, and technology controlling and process is required high, the cost of manufacture height.
Based on this, be necessary existing microsphere lens pipe cap technology is improved.
Summary of the invention
At above-mentioned weak point of the prior art, the present invention aims to provide a kind of microsphere lens pipe cap manufacture craft, and lens optical window forming technique and connection technique are united two into one, and manufacture craft is simple, production efficiency height, finished product reliability height.
To achieve these goals, technical scheme of the present invention: a kind of microsphere lens pipe cap manufacture craft, its direct melt molding of glass raw material that will make microsphere lens are on pipe cap, and concrete processing step is:
1), die stamping moulding pipe cap, its surface is provided with the anti-overflow groove that is used for determining microballoon moulding radius-of-curvature along week, and is stand-by; The glass cutting of making microsphere lens is become glass column, stand-by;
2), glass column is assemblied on the pipe cap, under protection of nitrogen gas with 880 ℃～920 ℃ temperature melten glass post cooling formings on pipe cap, wherein, microballoon moulding radius-of-curvature with the inner side-wall wall of anti-overflow groove along and decide;
3), plating is coated with.
Further, the pipe cap in the described step 1) needs before fusion:
1.1), surface treatment removes the matrix burr;
1.2), the ultrasonic cleaning deoxidation layer that deoils;
1.3), in oxidized still, mix with the nitrogen G﹠W, form the zone of oxidation of Z 250 on the pipe cap surface, wherein, the mixed volume ratio of nitrogen and water is 5:1.
Further, described pipe cap adopts the mode of mechanical polishing, tumbling or the light that shakes to remove the matrix burr.
Further, described plating is the microsphere lens pipe cap after the sealing-in moulding to be finished the surface plating be coated with after pickling, activation, nickel plating, washing, activation, nickel plating, washing.
Described microsphere lens focal length formula is as follows:
In the formula, the f-focal length of lens; The specific refractory power of n-glass; The d-lens thickness; The radius-of-curvature of R-object plane lens; The radius-of-curvature of r-image planes lens, wherein, microsphere lens is a biconvex lens, this gets negative value.
Beneficial effect of the present invention: directly be melted in glass raw material on the pipe cap, coupling element, pipe cap are united two into one, that is to say traditional lens optical window forming technique and connection technique are united two into one, reduced processing step, improved production efficiency, simultaneously, the unfailing performance height of the microsphere lens pipe cap of producing can be by army's mark examination of general shell.
Another object of the present invention is to protect the microsphere lens pipe cap of aforementioned microsphere lens pipe cap manufacture craft making; it comprises the microsphere lens of pipe cap and last and this pipe cap one sealing-in moulding; be provided with the anti-overflow groove of circumferential hoop around described microsphere lens on described pipe cap surface, the inside side walls wall of this anti-overflow groove is complementary along the microballoon radius-of-curvature with microsphere lens.
Particularly, described microsphere lens is to have the biconvex lens of setting focal length.
By the anti-overflow groove limits microsphere lens from structure moulding radius-of-curvature is set, under the glass embryo spare volume defining of making microsphere lens, can roughly determine the radius-of-curvature and the lens thickness of object plane lens and image planes lens, pass through to form under the effect of surface tension, interfacial force and gravity more satisfactory lens shape by one sealing-in forming technique in the softening back of glass again, reaching the focal length of lens of design, and meet the optical application design.
In sum, the present invention directly is melted in glass raw material on the pipe cap, coupling element, pipe cap are united two into one, that is to say traditional lens optical window forming technique and connection technique are united two into one, reduced processing step, improved production efficiency, simultaneously, the unfailing performance height of the microsphere lens pipe cap of producing can be by army's mark examination of general shell.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of microsphere lens pipe cap among the present invention.
Embodiment
Further describe the present invention below in conjunction with specific embodiment and accompanying drawing.
A kind of manufacture craft of the microsphere lens pipe cap as Fig. 1, its direct melt molding of glass raw material that will make microsphere lens are on pipe cap, and concrete processing step is:
1), die stamping moulding pipe cap, its surface is provided with the anti-overflow groove that is used for determining microballoon moulding radius-of-curvature along week, and is stand-by; The glass cutting of making microsphere lens is become glass column, stand-by;
2), glass column is assemblied on the pipe cap, under protection of nitrogen gas with 880 ℃～920 ℃ temperature melten glass post cooling formings on pipe cap, wherein, microballoon moulding radius-of-curvature with the inner side-wall wall of anti-overflow groove along and decide;
3), plating is coated with.
The microsphere lens pipe cap that the present invention produces is made up of two portions, see Fig. 1, pipe cap 2 plays support of optical part, protection chip and size and uses the effect that cooperates, its port two diameter dimensions are to cooperate the soldering and sealing size with base, the external diameter of pipe cap 2 bodies is mainly the coordinating size of soldering and sealing anchor clamps and metal sleeve, and the whole height of this pipe cap 2 is main relevant with application choice; Microsphere lens 1 adopts the biconvex lens design, then mainly optical signal is played congregation, has reduced the size and sophistication of coupled system greatly.
This manufacture craft mainly needs lens optical window forming technique and lens optical window and pipe cap connection technique two operating procedures to merge into lens optical window moulding sealing technology tradition, promptly is that both unite two into one simple and reliable process with lens moulding and connection.Be specially and adopt high temperature sealing by fusing technology that glass raw material directly is melted in supporting structure, that is to say on the pipe cap, coupling element, pipe cap are united two into one, to reduce device size and coupled complicacy, its optical signalling that is applicable to traditional type receives transmission.
For the direct fusion seal of microsphere lens on pipe cap, significant parameter is,
1, the formation structure of microsphere lens on pipe cap, this manufacture craft changes the marginal condition of melten glass by the inside side walls wall edge of anti-overflow groove on pipe cap, under the qualification of glass volume, effect when the softening back of glass owing to surface tension, interfacial force and gravity, make that stopping expansion in the marginal condition change promptly forms the microballoon radius-of-curvature of microsphere lens, and then can reach the radius-of-curvature of the object plane lens of microsphere lens, the radius-of-curvature and the lens thickness of image planes lens;
2, for the smelting process of microsphere lens; under 880 ℃～920 ℃ temperature; preferred this temperature is 880 ℃; glass column will soften fusion; glass cooling forming under the effect of surface tension, interfacial force and gravity after softening; to form more satisfactory lens shape; reach the focal length of lens of design; meet the optical application design; guarantee the optical property of glass lens and the excellent sealing of metal simultaneously; in whole process, adopt nitrogen to protect, that is to say in being full of the space of nitrogen and carry out, its objective is in order to guarantee that pipe cap is not by secondary oxidation.
3, because microsphere lens is the device coupling element, its forming shape will directly influence convex lens optical window focal length, be the critical performance parameters in this technology.By legend as can be known, the biconvex lens that the microsphere lens of this microsphere lens pipe cap is made up of outer lens and interior lens, its optical focal length by interior outer lens moulding curvature, lens thickness and glass specific refractory power determined, its formula is as follows:
In the formula, the f-focal length of lens; The specific refractory power of n-glass; The d-lens thickness; The radius-of-curvature of R-object plane lens; The radius-of-curvature of r-image planes lens, wherein, microsphere lens is a biconvex lens, this gets negative value.
Because glass refraction is the build-in attribute of material, be by the material character decision, therefore, know promptly by this formula directly that the lens optical window focal length of microsphere lens pipe cap is the function of inside and outside lens radius of curvature and thickness.
On the details, the pipe cap in the described step 1) needs before fusion:
1.1), surface treatment removes the matrix burr;
1.2), the ultrasonic cleaning deoxidation layer that deoils;
1.3), in oxidized still, mix with the nitrogen G﹠W, form the zone of oxidation of Z 250 on the pipe cap surface, wherein, the mixed volume ratio of nitrogen and water is 5:1.
For the moulding of glass column, adopt glass block to decompose the glass column that cuts into predetermined size; And the moulding of pipe cap is by the die stamping moulding, needs to guarantee dimensional uniformity, and when impact briquetting, described anti-overflow groove and pipe cap are one-body molded, to guarantee the size positions precision between the microsphere lens hole on anti-overflow groove and the pipe cap; Certainly, this anti-overflow groove also can adopt machining on pipe cap, as long as guarantee the size positions precision.
During the pipe cap surface treatment, adopt the mode of mechanical polishing, tumbling or the light that shakes to remove the matrix burr, again by the ultrasonic cleaning deoxidation layer that deoils, in order to avoid in subsequent technique, bring product performance difference by pollutent.At last, pipe cap needs anneal oxidation, promptly in oxidized still, mix with the nitrogen G﹠W, to form Z 250 on the pipe cap surface, the purpose of the zone of oxidation of this Z 250 is in order to make the mortise in the high-temperature fusion process between later stage microsphere lens and the pipe cap, promptly to guarantee sealing-in good between glass and the metal.Adopt the nitrogen of the mixed volume ratio of 5:1 to mix, can form uniform Z 250 zone of oxidation on the pipe cap surface better with water.
It is that the microsphere lens pipe cap after the sealing-in moulding is adopted the anchor clamps conducting that described plating is coated with, and finishes the surface plating and be coated with after pickling, activation, nickel plating, washing, activation, nickel plating, washing, to guarantee the good sealing-in and the etch resistant properties of pipe cap and base.
Another object of the present invention is to disclose the microsphere lens pipe cap that aforementioned microsphere lens pipe cap manufacture craft is made, it comprises the microsphere lens 1 of pipe cap 2 and last and these pipe cap 2 one sealing-in moulding, on described pipe cap 2 surfaces, be provided with the anti-overflow groove 3 of circumferential hoop around described microsphere lens 1, the inside side walls wall of this anti-overflow groove 3 is complementary along the microballoon radius-of-curvature with microsphere lens 1, see Fig. 1, this microsphere lens 1 is for having the biconvex lens of setting focal length, and its focal length is determined via the molded lens surface shape.
Through test, the performance index of this microsphere lens pipe cap are as follows:
| Parameter name | Symbol | Technical indicator | Unit | Remarks |
| Leakage rate | R 1 | ≤1×10 －3 | Pa·cm 3/s | ? |
| The focal plane distance | h | Adjustable | mm | ? |
| Light transmission rate | v | ≥90% | ? | 500～1800nm |
This table content is the major technique feature of the microsphere lens pipe cap of this manufacture craft made.
This table content is the reliability index of the microsphere lens pipe cap of this manufacture craft made.
Compare with traditional lens optical window forming technique and lens pipe cap connection technique two step process, the present invention has following advantage:
In addition, high-temperature fusion in order under the mode, by changing corresponding condition, also can realize the making of special-shaped lens moulding such as concave-concave, plano-convex.
More than the technical scheme that the embodiment of the invention provided is described in detail, used specific case herein the principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a microsphere lens pipe cap manufacture craft is characterized in that, on pipe cap, concrete processing step is with the direct melt molding of glass raw material of making microsphere lens:
1), die stamping moulding pipe cap, its surface is provided with the anti-overflow groove that is used for determining microballoon moulding radius-of-curvature along week, and is stand-by; The glass cutting of making microsphere lens is become glass column, stand-by;
2), glass column is assemblied on the pipe cap, under protection of nitrogen gas with 880 ℃～920 ℃ temperature melten glass post cooling formings on pipe cap, wherein, microballoon moulding radius-of-curvature with the inner side-wall wall of anti-overflow groove along and decide;
3), plating is coated with.
2. microsphere lens pipe cap manufacture craft according to claim 1 is characterized in that: the pipe cap in the described step 1) needs before fusion:
1.1), surface treatment removes the matrix burr;
1.2), the ultrasonic cleaning deoxidation layer that deoils;
1.3), in oxidized still, mix with the nitrogen G﹠W, form the zone of oxidation of Z 250 on the pipe cap surface, wherein, the mixed volume ratio of nitrogen and water is 5:1.
3. microsphere lens pipe cap manufacture craft according to claim 2 is characterized in that: described pipe cap adopts the mode of mechanical polishing, tumbling or the light that shakes to remove the matrix burr.
4. microsphere lens pipe cap manufacture craft according to claim 1 is characterized in that: it is the microsphere lens pipe cap after the sealing-in moulding to be finished the surface plating be coated with after pickling, activation, nickel plating, washing, activation, nickel plating, washing that described plating is coated with.
5. microsphere lens pipe cap manufacture craft according to claim 1 is characterized in that: described microsphere lens focal length formula is as follows:
In the formula, the f-focal length of lens; The specific refractory power of n-glass; The d-lens thickness; The radius-of-curvature of R-object plane lens; The radius-of-curvature of r-image planes lens, wherein, microsphere lens is a biconvex lens, this gets negative value.
6. according to the microsphere lens pipe cap of the arbitrary described microsphere lens pipe cap manufacture craft of claim 1-5, it is characterized in that: the microsphere lens (1) that comprises pipe cap (2) and last and this pipe cap (2) one sealing-in moulding, be provided with the anti-overflow groove (3) of circumferential hoop around described microsphere lens (1) on described pipe cap (2) surface, the inside side walls wall of this anti-overflow groove (3) is complementary along the microballoon radius-of-curvature with microsphere lens (1).
7. microsphere lens pipe cap according to claim 6 is characterized in that: described microsphere lens (1) is for having the biconvex lens of setting focal length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122095.XA CN103214191B (en) | 2013-04-08 | 2013-04-08 | Microsphere lens pipe cap manufacture craft and this microsphere lens pipe cap |
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| CN201310122095.XA CN103214191B (en) | 2013-04-08 | 2013-04-08 | Microsphere lens pipe cap manufacture craft and this microsphere lens pipe cap |
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| CN103214191B CN103214191B (en) | 2015-09-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435274A (en) * | 2013-08-27 | 2013-12-11 | 中国电子科技集团公司第四十四研究所 | Pipe cap with glass lens optical window and manufacturing method of pipe cap |
| CN107404064A (en) * | 2017-07-20 | 2017-11-28 | 广东格斯泰气密元件有限公司 | A kind of preparation method for 5G communication high-speed laser TO encapsulation pipe caps |
| 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 |
| CN110668709A (en) * | 2019-10-10 | 2020-01-10 | 杭州航天电子技术有限公司 | Airtight sealing method for kovar alloy and glass |
| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435274A (en) * | 2013-08-27 | 2013-12-11 | 中国电子科技集团公司第四十四研究所 | Pipe cap with glass lens optical window and manufacturing method of pipe cap |
| CN107404064A (en) * | 2017-07-20 | 2017-11-28 | 广东格斯泰气密元件有限公司 | A kind of preparation method for 5G communication high-speed laser TO encapsulation pipe caps |
| 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 |
| CN110668709A (en) * | 2019-10-10 | 2020-01-10 | 杭州航天电子技术有限公司 | Airtight sealing method for kovar alloy and glass |
| 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 |
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| CN103214191B (en) | 2015-09-23 |
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