Abstract: In this paper, deflection and scanning of a HeNe beam by a programmable phase Fresnel lens written on a LCTV has been demonstrated. Translation and tilt aberration respectively produces coarse and fine deflection of the beam. The rapid translation of the lens function, time dependent variation of the magnitude of the tilt aberration, and a combination of these two methods are used to demonstrate laser beam scanning. In our experiments, using the wavefront tilt aberration a measurable scan deflection accuracy of less than 8 $mu@rad is achieved. Using the lens translation scheme the beam is scanned over a 0.8 cm $MUL 0.8 cm area at a distance of 50 cm. The scan time of the current system is limited by the standard video frame rate of the existing LCTV drive electronics. The performance limits of the LCTV-based deflection and scanning system are compared with those of acousto-optic deflectors and scanners.!6
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机译：摘要：在本文中，已证明了用写在LCTV上的可编程相位菲涅耳透镜对HeNe光束的偏转和扫描。平移和倾斜像差分别产生光束的粗略偏转和精细偏转。透镜功能的快速平移，倾斜像差的大小随时间的变化以及这两种方法的组合用于演示激光束扫描。在我们的实验中，使用波前倾斜像差可实现小于8 $ mu @ rad的可测量扫描偏转精度。使用透镜平移方案，光束以50 cm的距离在0.8 cm $ MUL 0.8 cm的区域上扫描。当前系统的扫描时间受到现有LCTV驱动电子设备的标准视频帧速率的限制。将基于LCTV的偏转和扫描系统的性能极限与声光偏转器和扫描器的性能极限进行了比较！6
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