Pipe cap with glass lens optical window and manufacturing method of pipe cap

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 [0001] The invention relates to a manufacturing technology of a packaging shell, in particular to a tube cap with a glass lens light window and a manufacturing method thereof. Background technique [0002] The optical transceiver device is an important device in the field of modern engineering, and the quality of the optical window on the optical transceiver device is an important factor determining the quality of the optical transceiver device. The light window on the optical transceiver device is generally formed by the lens light window arranged on the package shell, which involves two processes, one is the molding technology of the lens light window itself, and the other is the gap between the package shell and the lens light window. packaging technology; [0003] The existing lens light window forming technologies mainly include processes such as cold processing lenses, molded lenses, and injection molding lenses, and the existing packaging technolo...

AI Technical Summary

Problems solved by technology

[0004] First of all, in the prior art, when processing a tube cap with a glass lens light window, it is necessary to process the lens light window and the tube cap independently first, and then package the two together through an independent packaging process, which requires many procedures and troublesome operation ;

[0005] Secondly, for the specific lens window forming technology, the existing technology has the following defects: 1) The cold processing lens process is to process the glass lens into shape by grinding, polishing, etc. This processing method is not only tedious and inefficient, but also not suitable for Make micro-sized lenses;

[0006] 2) The molded lens process is to mold the glass blank in the mold at high temperature. Although the lens design surface shape can be accurately realized, the equipment and technology investment of this process is large, and the cost is very high;

[0007] 3) The injection molding lens process is generally aimed at plastic lenses. Although the cost is low, due to the inherent defects of the plastic material itself, the optical surface quality of the lens is not good, and the plastic temperature adaptability is poor, it is easy to age, and the optical performance of the device decays quickly. , difficult to use for a long time;

[0008] Thirdly, for the encapsulation technology of the lens light window and the encapsulation shell, the prior art has the following defects: 1) The low-temperature glass sealing process uses low-temperature glass solder to seal the lens light window on the sealing support structure, and the sealing temperature is lower than that of the light Although the softening temperature of the window will not affect the parameters of the light window lens itself during processing, the welding firmness between the glass solder and the supporting structure is very poor, resulting in the firmness of the connection between the lens light window and the package shell. Poor, the lens light window is easy to fall off during use, especially when it is applied to those devices that have vibration themselves;

[0009] 2) The adhesive process is to bond the formed lens light window to the sealing support structure with organic glue. Although this process is simple and easy to implement, the adhesive material has disadvantages such as poor temperature adaptability and easy aging, which makes it difficult to ensure the long-term durability of the structure. stability;

[0010] 3) Metallized brazing is to use alloy solder to braze the formed lens light window on the sealing support structure. Before brazing, the sealing surface of the lens light window needs to be metallized, the process cost is high, and the metallized layer part needs to use precious metals materials, high production cost

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