超半球型浸没透镜在指纹图像采集中的应用  

Hyperhemispherical submersed lens application in fingerprint images collection

作　　者：朱鹏飞[1] 林尊琪[1] 叶常君 蔡红星 李红生 

机构地区：[1]中科院上海光机所高功率激光物理国家实验室,上海201800 [2]长春光学精密机械学院光学物理系光电技术研究室,长春130022

出　　处：《光学技术》2001年第5期391-392,共2页Optical Technique

摘　　要：简要地叙述了指纹图像的应用意义。介绍了一台指纹采集装置 ,它主要由全反射棱镜、反射镜、双胶合透镜、超半球型浸没透镜、CCD等组成 ,并与计算机接口 ,从而实现了指纹采集过程的数字化 ,可以实时显示、存储指纹。着重地描述了超半球型浸没透镜的原理和成像特点。The significance of the fingerprint application is introduced in brief and a new system for collect fingerprint is specified, which consists of entirely reflecting prism, a holophote, a double glue lens, a hyperhemispherical submersed lens and a digital camera. The automatization of the collection is realized by interfacing the system with a computer. So real-time fingerprint images can be shown and saved. The principle and characteristic of imaging of the hyperhemispherical submersed lens is emphatically specified. A few pieces of fingerprint images collected by the system were shown.

关 键 词：超半球型浸没透镜 指纹 图像采集 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.41[电子电信—信息与通信工程]