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Processing method of shading ring and manufacturing method of shading ring

發布時(shí)間(jiān)：

2023-02-15 14:35

　　A processing method of the light-shi↑elding ring and the light-shielding ring, the method comprising the steps of:" providing a light-shielding ri×ng, the light-shielding ring comprisin€g a body, an antistatic coating coated on the body ↔and formed on the body The body↔ is made of a plastic material, and the an♣ti-static coating is a c<arbon powder layer; a matte structure is¶ formed on the hole wall of the through hole by alkali solution cor€rosion.

　　The processing method of the light-shielding αring and the light-shielding ring, the light-shielding ring is processed¥ in the ultrasonic generator with an alkaline solution ‍to form a matte structure on the hole wall of the throλugh hole of the light-shielding ring to avoid♣ reflection caused by the hole wall of the through hole The occurren•ce of undesirable conditions such as glare, halo and ghosting,₹ which in turn guarantees the shooting effect and improveγs the quality of the camera products.

　　High-pixel mobile phones and digital camera₽s generally need to place 3 to₽ 5 light-shielding rings inside the camera to adjust the aperture aδnd block other stray l≥ight. In the past, they were processed by metal stamping and blackened by oxidation to achieve full extinction. The purpose, b¶ut the cost and plastic shading ring ar e several times more expensive.

　　In recent years, as the cost has dropped significantly, it hΩas been replaced by direct stamping of polyethylene terephthalate (PET>) raw materials with anti-static and high light-shielding coatingγs on the surface. However, as the pixels become higher and higher, after the plastic stamping The sectio n of the inner hole will leave a sαhiny cut surface, and it cannot be treated ←with traditional blackening and matting like£ metal, so that obvious glare, halo, and ghosting (FLARE) are caused.

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