Application of a variable liquid crystal lens to 3D digitization

目前的提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，无需机械运动即可实现自动对焦功能。与此同时，随着3D打印机在研发和原型设计领域的广泛应用，3D数字化也越来越受到关注。其中一种用于实现3D数字化的技术是将平行线投射到物体上，并使用多台摄像机捕获生成的图像。在目前的产品中，用户需要移动手来确保图像在焦点上。因此，这个项目的目标是开发液晶镜头，以确保即使在视频模式下，图像也始终处于对焦状态（与手机的点拍应用相反）。作为这个项目的一部分，我们将尝试调整我们团队为移动相机开发的镜头，以适应这种有不同技术要求的3D投影技术。因此，我们将（与我们的工业合作伙伴合作）为他们的3D数字化设备开发，构建，表征和集成电可变液晶透镜。

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.