A dynamic polarization stereoscopic imaging system
CN224696160UActive Publication Date: 2026-08-28SUZHOU UNIV
Patent Information
- Application Number
- CN202521405289.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-07-07
AI Technical Summary
Technical Problem
[0006]为此，本实用新型实施例提供了一种动态偏振立体成像系统，用于解决现有技术中防伪技术颜色单一、依赖强光源、缺乏动态偏振调控手段及立体成像效果不足的问题
Benefits of technology
[0030]本实用新型提供了一种动态偏振立体成像系统，将可旋转的单层或双层金属偏振薄膜与类法布里-珀罗微腔共振结构的微图文阵列相结合，通过旋转偏振薄膜切换TM/TE偏振光入射，同时利用微图文阵列中一维光栅、二维对称及非对称光栅对偏振光的不同响应特性，实现立体像的“显现-隐藏”动态切换与彩色调制；搭配微透镜阵列与透明间隔层的焦平面设置，通过特定公式调控视场角与放大率，还原光场实现立体成像。本实用新型突破现有技术中防伪图像颜色单一、依赖强光源的局限，利用偏振薄膜的宽带滤光与动态偏振调节，结合微腔共振结构的波长选择性，实现宽色域的彩色立体成像，且通过偏振态与光栅结构的多维组合形成动态加密维度，提升防伪技术的抗仿制能力，满足自然光下易识别、环境友好的新一代防伪加密需求。
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Smart Images
Figure CN224696160U_ABST
Abstract
The utility model provides a kind of dynamic polarization stereoscopic imaging system, it is related to the field of anti-fake encryption technology, and the system includes light source, polarization film, color stereoscopic imaging module sequentially arranged along optical path;Light source is used to provide visible band incident light;Polarization film is configured to transmit TM polarized light when rotating 0 °, and transmit TE polarized light when rotating 90 °;Color stereoscopic imaging module includes microlens array, transparent spacer layer and micrograph array sequentially arranged along optical path;Micrograph array includes metal plating film layer, grating layer and glass substrate stacked from top to bottom, wherein the grating layer constitutes class Fabry-Perot microcavity resonance structure;By rotating polarization film to switch incident light polarization state, make the stereoscopic image of micrograph array dynamically switch between appearance, hide or discolor state.The utility model realizes wide color gamut, dynamic adjustable color stereoscopic imaging, and improves the complexity and easy identification of anti-fake encryption.
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Citation Information
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