新型小型化牙科扫描仪探头的光学系统设计  

Design of a new miniaturization optical system for dental scanner

作　　者：武楚晗 常新[2] 白学武 胡昀[3] 胡晓聪[2] 常军[1] WU Chuhan CHANG Xin BAI Xuewu HU Yun HU Xiaocong CHANG Jun(School of Opto-electronics, Beijing Institute of Technology, Beijing 100081, China The people＇ s hospital of Baoan Shenzhen, Shenzhen 518100, China Stomatology/Affiliated stomatology hospital, Guangzhou 510150, China)

机构地区：[1]北京理工大学光电学院,北京100081 [2]深圳市宝安区人民医院,广东深圳518100 [3]广州医科大学附属口腔医院,广州510150

出　　处：《光学技术》2017年第5期427-430,共4页Optical Technique

基　　金：深圳市科技计划项目(JCYJ20150402152005632)

摘　　要：为解决牙科扫描探头小型化问题,基于结构光三维重建算法,创新性地设计出一种投影与成像共孔径设置的小型化牙科三维扫描仪探头光学系统。系统采用分视场共孔径技术,部分视场用于实现投影功能,另一部分视场用于实现成像功能,投影区域和成像区域存在公共区域。仿真实验给出了在扫描范围为46×35mm2内的系统性能,借助LightTools软件做了照明分析仿真,证明了系统光路的可行性。A new optical system based on the structured light method is proposed,which is commonly used for measuring3 Ddental morphology with superiority in high accuracy,wide range and fast speed.The system includes two subsystems for projection and imaging,and they are combined by a common aperture miniaturize the dental scanning probe.This system divides the whole field of view（FOV）of the optical system for these two systems separately.The aberrations of the optical system with a scanning area of 46 times 35square millimeters is analyzed and the system is simulated by Light Tools.

关 键 词：牙科扫描仪 共孔径 分视场 小型化 

分 类 号：O439[机械工程—光学工程]