Application of a variable liquid crystal lens to 3D digitization

可变液晶透镜在3D数字化中的应用

• 批准号: 514088-2017
• 负责人: Galstian, Tigran
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639635
• 关键词: Application; variable; liquid; crystal; lens

The current proposal aims the development and fabrication of electrically variable liquid crystal lenses for 3Ddigitization. Namely, this type of lenses already has been successfully applied to mobile (cell phone) camerasto perform auto focus function without mechanical movements. In the same time, the 3D digitization gainsmore and more attraction along with 3D printers which become broadly accepted in the R&D and prototypingcommunity. One of the techniques, used to perform the 3D digitization, consists in projecting parallel lines onobjects and capturing the resulting images by using several cameras. In current products, the user needs tomove the hand to ensure that the image is in focus. Thus, the goal of this project is the development of liquidcrystal lenses that would ensure that the images are always in focus even in the video mode (in contrast to cellphone's point & shoot application). As part of this project we will try to adapt the lenses that our group hasdeveloped for mobile cameras to this technique of 3D projection that have different technical requirements. Asa result, we shall develop, build, characterize and integrate (in collaboration with our industrial partner)electrically variable liquid crystal lenses for their 3D digitization device.

目前的方案旨在开发和制造用于3D数字化的电可变液晶透镜。也就是说，这种类型的镜头已经成功地应用于移动(手机)相机，无需机械动作即可实现自动对焦功能。与此同时，随着3D打印机在研发和样机领域的广泛接受，3D数字化也越来越受到人们的关注。其中一种用于执行3D数字化的技术是将平行线投影到对象上，并使用几个相机捕获结果图像。在目前的产品中，用户需要移动手以确保图像对焦。因此，该项目的目标是开发液晶透镜，以确保图像即使在视频模式下也始终处于对焦状态(与手机的Point&Shoot应用程序形成对比)。作为该项目的一部分，我们将努力使我们团队为移动相机开发的镜头适应这种具有不同技术要求的3D投影技术。因此，我们将为他们的3D数字化设备开发、制造、表征和集成(与我们的工业合作伙伴合作)电可变液晶透镜。