A prism assembly and a manufacturing method thereof, a camera module and an electronic device

By using plastic prisms and their manufacturing methods in periscope telephoto lenses, the problems of glass prisms being fragile, heavy, and power-consuming have been solved, achieving lightweighting and cost reduction, while improving optical performance and imaging quality.

CN122410686APending Publication Date: 2026-07-17HUAWEI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2025-12-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The prisms in existing periscope telephoto lenses are usually made of glass, which leads to problems such as heavy camera modules, fragility, high power consumption, and high cost.

Method used

A plastic prism and its preparation method are employed. By setting a substrate on the plastic prism, the substrate includes a substrate layer, a base layer, and a reflective layer. The Mohs hardness of the substrate layer is greater than that of the base layer. The reflective layer is located on the side of the substrate closer to the plastic prism. The substrate has strong resistance to deformation, and the reflective layer has high reflectivity, thereby reducing weight and improving optical performance.

Benefits of technology

The weight and power consumption of the prism assembly and camera module were reduced, lowering costs while improving the stability of optical performance and image quality.

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Abstract

本申请实施例提供一种棱镜组件及其制备方法,摄像头模组和电子设备。棱镜组件包括:塑料棱镜,包括光入射区、光反射区和光出射区;基板,位于塑料棱镜的光反射区上,基板包括依次排布的基材层、打底层和反射层;其中,基材层的莫氏硬度大于打底层的莫氏硬度,此外,基板靠近塑料棱镜的表面的面精度PV值≤(1 / 10)λ,λ=632.8nm。本发明解决了玻璃棱镜组件重,使得摄像头模组及电子设备功耗大的问题,此外,改善了棱镜组件的加工难度,提高了含塑料棱镜的棱镜组件的加工精度,改善了含塑料棱镜的棱镜组件的光学性能。
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