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Preparation method of rolled copper shading ring piece and rolled copper shading ring piece

A technology of shading aperture and aperture film, applied in the field of photography, can solve the problems such as the matte structure is easy to age and fall off, the shading aperture is not easy to conduct electricity, and affects the shading performance, etc., and achieves stable matte black structure, easy blackening, and increased roughness. Effect

Active Publication Date: 2018-11-13
AAC OPTICS SOLUTIONS PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related art, the light-shielding ring is made of Japanese SOMA light-shielding material, which is double matte black polyethylene terephthalate (PET), and the light-shielding ring made of this material is not easy to exist. Conductive, not resistant to high temperature and other defects, and the matte structure on the surface of the shading ring is easy to age and fall off, affecting the shading performance

Method used

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  • Preparation method of rolled copper shading ring piece and rolled copper shading ring piece
  • Preparation method of rolled copper shading ring piece and rolled copper shading ring piece
  • Preparation method of rolled copper shading ring piece and rolled copper shading ring piece

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preparation example Construction

[0032] see figure 1 , the invention provides a method for preparing a rolled copper shading ring sheet, which comprises the steps of:

[0033] S1: Provide a formed shading ring, which is made of rolled copper.

[0034] Rolled copper is made by rolling copper ingots, then forging, anti-oxidation, roughening and other processes. The thickness of rolled copper is generally 5um ~ 135um. The molecules are tightly connected, with good flexibility, high strength, and bendability. , ductility, electroplating, good electrical conductivity, and excellent surface gloss; moreover, the rolled copper foil has low surface oxygen characteristics, and can be attached to various substrates, such as metals, insulating materials, etc., and has a wide range of temperature applications . The shading ring made of calendered copper material can avoid the shortcomings of PET material shading ring in the related art that are not resistant to aging, easy to deform, and not resistant to high temperatur...

Embodiment 1

[0057] The invention provides a method for preparing a rolled copper shading ring, which comprises the following steps:

[0058] (1) Provide a molded light-shielding ring piece made of rolled copper material.

[0059] (2) After washing with water, the light-shielding ring is ultrasonically cleaned for 10 minutes with acetone and 20 minutes with ethanol, so as to remove the rolling oil film attached to the surface of the light-shielding ring.

[0060] (3) After washing with water, use a copper polishing solution to polish the degreased light-shielding ring to remove the concave-convex structure on the surface of the light-shielding ring, and the polishing time is 5 minutes.

[0061] (4) After washing with water, place the polished light-shielding ring in the electroplating solution for electroplating, so as to attach a layer of copper bump layer on the surface of the light-shielding ring to increase the roughness of the light-shielding ring surface, The temperature of the elec...

Embodiment 2

[0067] The invention provides a method for preparing a rolled copper shading ring, which comprises the following steps:

[0068] (1) Provide a molded light-shielding ring piece made of rolled copper material.

[0069] (2) After washing with water, ultrasonically clean the light-shielding ring for 20 minutes with acetone and 50 minutes with ethanol to remove the rolling oil film attached to the surface of the light-shielding ring.

[0070] (3) After washing with water, use a copper polishing solution to polish the degreased light-shielding ring to remove the concave-convex structure on the surface of the light-shielding ring, and the polishing time is 1 minute.

[0071] (4) After washing with water, place the polished light-shielding ring in the electroplating solution for electroplating, so as to attach a layer of copper bump layer on the surface of the light-shielding ring to increase the roughness of the light-shielding ring surface, The temperature of the electroplating tr...

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Abstract

The invention provides a preparation method of a rolled copper shading ring piece. The preparation method comprises the steps that a formed shading ring piece made of a rolled copper material is provided; the shading ring piece is subjected to degreasing treatment; the shading ring piece is polished; the shading ring piece is subjected to electroplating treatment, so that a copper nodule layer iselectroplated on the surface of the shading ring piece to increase the roughness of the surface of the shading ring piece; the shading ring piece is activated; the shading ring piece is subjected to oxide treatment to change the color of the surface of the shading ring piece; and the shading ring piece is dried to obtain a finished product of the rolled copper shading ring piece. The invention further provides the rolled copper shading ring piece. The preparation method of the rolled copper shading ring piece has simple steps and high implementability, and the obtained rolled copper shading ring piece has a stable matt black structure and is not easy to fall off; and the preparation method of the rolled copper shading ring piece and the rolled copper shading ring piece further have the characteristics of easy blackening, simple process, and low reflectance after blackening.

Description

【Technical field】 [0001] The invention relates to the field of imaging technology, in particular to a method for preparing a rolled copper shading ring and a rolled copper shading ring. 【Background technique】 [0002] With the rapid development of science and technology, digital cameras and mobile phones with digital cameras are popularized rapidly, and the optical parts used in these optical instruments are gradually improved. The shading ring is an optical element used to regulate the luminous flux in the optical system. When the external light enters the lens, the unnecessary light can be blocked through the shading ring set between the lenses to prevent flare or ghosting in the camera image. . [0003] In the related art, the light-shielding ring is made of Japanese SOMA light-shielding material, which is double matte black polyethylene terephthalate (PET), and the light-shielding ring made of this material is not easy to exist. Conductive, not resistant to high temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38C25D5/34C25D5/48C23C22/63
CPCC23C22/63C25D3/38C25D5/34C25D5/48
Inventor 霍雷
Owner AAC OPTICS SOLUTIONS PTE LTD