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Lens barrel forming process

A molding process and lens barrel technology, applied in the field of optical imaging, can solve problems such as unsatisfactory extinction effect, and achieve the effects of high utilization rate of raw materials, high production automation and good ductility.

Inactive Publication Date: 2019-07-16
AAC OPTICS SOLUTIONS PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the lens barrel molding process of the related art, the lens barrel is often provided with extinction by setting the laser extinction technology. In the process of use, the extinction effect of the lens barrel processed by the laser extinction technology is not ideal.

Method used

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] MIM (Metal injection Molding) technology is metal powder injection molding technology. Its basic steps are: select metal powder that meets the requirements of MIM and organic binder, mix it into a uniform feed by an appropriate method under certain temperature conditions, and then make After the pellets are plasticized at home, they are injected into the mold cavity by an injection molding machine to obtain a molded blank, which is then degr...

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Abstract

The invention provides a lens barrel forming process. The lens barrel forming process adopts an MIM blackened process flow, and comprises the following steps of preliminary forming: providing raw material particles containing organometallic compounds, and forming a first lens barrel blank through injection moulding of the raw material particles; degreasing: degreasing the first lens barrel blank under gas protection, removing low molecular paraffin and organic matter in the raw material particles, and forming a second lens barrel blank; sintering: providing a vacuum furnace, placing the secondlens barrel blank in the vacuum furnace, and fully sintering the second lens barrel blank; then, cooling the second lens barrel blank to room temperature, and forming a third lens barrel blank; and chemical oxidation blackening treatment: performing chemical oxidation blackening treatment to the third lens barrel blank, and forming a lens barrel after forming a blackening layer of a fine pore structure on the surface of the third lens barrel blank. Compared with the prior art, the lens barrel extinction forming process provided by the invention has the advantages of wide application fields, high automation degree of production and capability of mass production, and the extinction property of the product is more excellent.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of optical imaging, in particular to a lens barrel forming process. [0003] 【Background technique】 [0004] With the continuous development of science and technology, electronic devices are constantly developing towards intelligence. In addition to digital cameras, portable electronic devices such as tablet computers, mobile phones, etc. are also equipped with camera modules to meet the needs of users to take pictures at any time. . [0005] The lens barrel is the basic component of the lens module. In order to ensure the stability of the lens in the lens barrel, the lens barrel is required to have a relatively stable structure and reliable performance, and at the same time, the lens needs to have a certain extinction performance. [0006] However, in the lens barrel forming process of the related art, the laser extinction technology is often used to provide the lens barrel with extinction. During use, the l...

Claims

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Application Information

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IPC IPC(8): B29D11/00
CPCB29D11/00B29D11/00432
Inventor 王佳
Owner AAC OPTICS SOLUTIONS PTE LTD
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