CN213327361U - Lens tube cap - Google Patents
Lens tube cap Download PDFInfo
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- CN213327361U CN213327361U CN202021691504.XU CN202021691504U CN213327361U CN 213327361 U CN213327361 U CN 213327361U CN 202021691504 U CN202021691504 U CN 202021691504U CN 213327361 U CN213327361 U CN 213327361U
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- tube cap
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Abstract
The invention relates to a lens tube cap, which comprises a glass lens and a metal tube cap, wherein the metal tube cap is provided with a positioning hole; the glass lens is fixedly connected with the metal tube cap through a microcrystalline glass solder. Compared with the prior art, the invention can reduce the process complexity of the lens tube cap and improve the production efficiency; the machining cost is reduced, and the advantage of the mass production efficiency is obvious; the connection strength can be improved, and the air tightness is obviously improved; the more matched expansion coefficient adapts to various working conditions.
Description
Technical Field
The invention relates to the technical field of tube caps, in particular to a lens tube cap.
Background
The mould pressing non-spherical pipe cap in the prior art has complex production process and low coupling efficiency; the compression molding consistency is poor, and the curvature radius of the ball is different: the shell is machined, and the cost is high; high equipment investment; moreover, the glass lens and the shell are fixed in the manufacturing process of the tube cap in an adhesive mode, and the adhesive process is complex; the bonding glue is easy to age and crack and has low strength; the air tightness is poor; the expansion coefficient mismatch cannot adapt to various working conditions. It is necessary to solve these problems.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention aims to provide a method which can reduce the process complexity and improve the production efficiency; the production efficiency is improved, and the cost is reduced; a lens cap capable of improving joint strength and airtightness and a method for manufacturing the same.
The technical scheme for solving the technical problems is as follows: a lens tube cap comprises a glass lens and a metal tube cap, wherein a positioning hole is formed in the metal tube cap, and the glass lens is arranged in the positioning hole; the glass lens is fixedly connected with the metal tube cap through a microcrystalline glass solder.
In the above embodiment, the microcrystalline glass solder surrounds the glass lens and is located at the upper end of the metal tube cap, and the microcrystalline glass solder is fixedly connected with the glass lens and the metal tube cap respectively.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the microcrystalline glass solder is wound around the glass lens and positioned at the upper end of the metal tube cap, and the microcrystalline glass solder is fixedly connected with the glass lens and the metal tube cap respectively.
Further, the upper end face of the glass lens is transited to the upper end face of the metal pipe cap through the arc of the upper end face of the microcrystalline glass solder.
The invention has the beneficial effects that: the lens tube cap prepared by the glass lens, the metal tube cap and the microcrystalline glass solder can reduce the process complexity and improve the production efficiency; the metal pipe cap reduces the machining cost and has obvious advantage of batch production efficiency; the microcrystalline glass solder can improve the strength of the lens tube cap after welding and obviously improve the air tightness; the more matched expansion coefficient adapts to various working conditions.
Another technical solution of the present invention for solving the above technical problems is as follows: a method for preparing a lens tube cap comprises the following steps:
step 1, prefabricating a glass lens and a metal pipe cap, and manufacturing a positioning hole at the upper end of the metal pipe cap; sleeving the metal tube cap on a mold, embedding the glass lens into the positioning hole, placing annular microcrystalline glass solder at the upper end of the metal tube cap, arranging the microcrystalline glass solder along the edge of the positioning hole, and surrounding the microcrystalline glass solder in the middle of the glass lens to form a blank;
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the microcrystalline glass solder is made of low-temperature glass powder, and the glass powder is sintered at a high temperature and injected into a mold for molding.
The invention has the beneficial effects that: the lens tube cap prepared by the glass lens, the metal tube cap and the microcrystalline glass solder can reduce the process complexity and improve the production efficiency; the metal pipe cap reduces the machining cost and has obvious advantage of batch production efficiency; the microcrystalline glass solder can improve the strength of the lens tube cap after welding and obviously improve the air tightness; the more matched expansion coefficient adapts to various working conditions.
Drawings
FIG. 1 is a schematic structural diagram of a lens cap according to the present invention;
FIG. 2 is a flow chart of a method for manufacturing a lens cap according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. glass lens, 2, metal pipe cap, 3, microcrystalline glass solder.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, a lens cap comprises a glass lens 1 and a metal cap 2, wherein a positioning hole is formed in the metal cap 2, and the glass lens 1 is placed in the positioning hole; the glass lens 1 and the metal tube cap 2 are fixedly connected through a microcrystalline glass solder 3.
In the above embodiment, the microcrystalline glass solder 3 surrounds the glass lens 1 and is located at the upper end of the metal tube cap 2, and the microcrystalline glass solder 3 is fixedly connected with the glass lens 1 and the metal tube cap 2 respectively.
In the above embodiment, the upper end surface of the glass lens 1 is transited to the upper end surface of the metal cap 2 through the arc of the upper end surface of the microcrystalline glass solder 3.
The glass lens 1 used in the embodiment has high transmission rate and good consistency, and the coupling efficiency is improved; and meet the performance requirement of high-speed transmission signals of the light beam; the microcrystalline glass solder 3 has low softening temperature, good sealing strength and expansion coefficient approaching to that of the microcrystalline glass solder; the metal pipe cap 2 is easy to punch and form and has high batch production efficiency;
in the embodiment, the lens tube cap prepared by the glass lens 1, the metal tube cap 2 and the microcrystalline glass solder 3 can reduce the process complexity and improve the production efficiency; the metal pipe cap 2 reduces the machining cost and has obvious advantage of batch production efficiency; the microcrystalline glass solder 3 can improve the strength of the lens tube cap after welding and obviously improve the air tightness; the more matched expansion coefficient adapts to various working conditions.
Example 2:
as shown in fig. 2, a method for preparing a lens cap includes the following steps:
step 1, prefabricating a glass lens 1 and a metal tube cap 2, and manufacturing a positioning hole at the upper end of the metal tube cap 2; sleeving the metal tube cap 2 on a mold, embedding the glass lens 1 into the positioning hole, placing an annular microcrystalline glass solder 3 at the upper end of the metal tube cap 2, arranging the microcrystalline glass solder 3 along the edge of the positioning hole, and surrounding the microcrystalline glass solder 3 in the middle of the glass lens 1 to form a blank;
In the above embodiment, the microcrystalline glass solder 3 is made of low-temperature glass powder, and the glass powder is sintered at a high temperature and injected into a mold for molding.
The glass lens 1 used in the embodiment has high transmission rate and good consistency, and the coupling efficiency is improved; and meet the performance requirement of high-speed transmission signals of the light beam; the microcrystalline glass solder 3 has low softening temperature, good sealing strength, close expansion coefficient and environmental protection; the metal pipe cap 2 is easy to punch and form and has high batch production efficiency;
in the embodiment, the lens tube cap prepared by the glass lens 1, the metal tube cap 2 and the microcrystalline glass solder 3 can reduce the process complexity and improve the production efficiency; the metal pipe cap 2 reduces the machining cost and has obvious advantage of batch production efficiency; the microcrystalline glass solder 3 can improve the strength of the lens tube cap after welding and obviously improve the air tightness; the more matched expansion coefficient adapts to various working conditions.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A lens vial cap, comprising: the metal tube cap comprises a glass lens (1) and a metal tube cap (2), wherein a positioning hole is formed in the metal tube cap (2), and the glass lens (1) is arranged in the positioning hole; the glass lens (1) and the metal tube cap (2) are fixedly connected through a microcrystalline glass solder (3).
2. A lens cap according to claim 1, wherein: the glass-ceramic solder (3) is wound around the glass lens (1) and is positioned at the upper end of the metal tube cap (2), and the glass-ceramic solder (3) is fixedly connected with the glass lens (1) and the metal tube cap (2) respectively.
3. A lens cap according to claim 1, wherein: the upper end face of the glass lens (1) is in arc transition to the upper end face of the metal pipe cap (2) through the upper end face of the microcrystalline glass solder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691504.XU CN213327361U (en) | 2020-08-14 | 2020-08-14 | Lens tube cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691504.XU CN213327361U (en) | 2020-08-14 | 2020-08-14 | Lens tube cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213327361U true CN213327361U (en) | 2021-06-01 |
Family
ID=76096077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021691504.XU Active CN213327361U (en) | 2020-08-14 | 2020-08-14 | Lens tube cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213327361U (en) |
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2020
- 2020-08-14 CN CN202021691504.XU patent/CN213327361U/en active Active
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