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Structural color sunglass lens and forming process thereof

A molding process and structural color technology, applied in glasses/goggles, metal material coating process, and other household appliances, etc., can solve the problems of uncontrollable preparation process, incapable of large-scale manufacturing, and limited structural color

Pending Publication Date: 2022-07-08
温州市三普光学科技有限公司
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AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used structural color preparation methods include biological template method, nanoimprinting method, femtosecond laser, etc. Although the above methods have successfully prepared the structural color surface, there are defects that the preparation process is uncontrollable and cannot be manufactured in a large area, which limits the structural color. Applications

Method used

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  • Structural color sunglass lens and forming process thereof

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Effect test

Embodiment Construction

[0031] like figure 1 As shown in the figure, a molding process of a structural color sunglass lens includes the following steps: S1, an injection mold of the lens is prepared by electroforming;

[0032] S2, typesetting the structural color pattern to be attached to the lens, and then etching the pattern in the cavity of the injection mold by ion beam etching to form an array of micro-nano-scale convex structures or concave hole structures. The thickness or depth of the nano-scale convex structure or concave structure is 100-200 nanometers;

[0033] S3, polishing the cavity surface with ion beam etching;

[0034] S4, the injection mold obtained in step S1 is installed on the injection molding machine for injection molding, the injection molding raw material is dried by a dehumidifier for 6 hours, the drying temperature is 80 °C, the mold is preheated to 35 °C, and the injection molding adopts five-stage segment injection. , in which the injection pressure of the first stage i...

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Abstract

According to the structural color sunglass lens and the forming process thereof, through the steps S1-S3, an injection mold with a micro-nano-scale convex structure or a concave hole structure attached to a mold cavity is manufactured, so that the lens can be subjected to batch injection molding production. The surface of the lens obtained through injection molding is provided with a micro-nano-scale convex structure or a concave hole structure, a periodic plane with a parallel structure in a certain direction is formed, a diffraction grating is formed, and different structural colors are diffracted by setting angle changes of an incident angle and a diffraction angle. And then plating a layer of metal chromium film on the prepared lens, plating a titanium oxide film on the metal chromium film, plating a silicon oxide film on the titanium oxide film, and forming a hardened nano organic silicon coating on the silicon oxide film to finally obtain the structural color sunglass lens product.

Description

technical field [0001] The invention relates to the technical field of spectacle lens molding, in particular to a structural color sunglass lens and a molding process thereof. Background technique [0002] There are fine micro-nano structures on the surface of some animals and plants in nature, which produce brilliant and colorful colors when illuminated, called structural colors. Structural color has vivid color, not easy to fade, and iridescent effect. More importantly, the surface of structural color products does not need spraying, surface decoration and other processes, which is environmentally friendly and has great research value in the fields of color rendering, anti-counterfeiting and decoration. and broad application prospects. [0003] The generation mechanism of structural color is that the periodic micro / nanostructure controls the propagation behavior of light through physical interactions such as diffraction, interference or scattering. When the reflected ligh...

Claims

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Application Information

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IPC IPC(8): G02C7/10B29C33/38B29C45/00C23C14/30C23C14/20C23C14/08C23C14/10B29L11/00
CPCG02C7/10B29C33/3842B29C45/00C23C14/30C23C14/20C23C14/083C23C14/10C23C14/0015B29L2011/0016
Inventor 占兆进刘兵
Owner 温州市三普光学科技有限公司
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