Spatial light modulation system and method and holographic image generation method

• Main Authors: LU YUZE, HUANG KUN
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

A spatial light modulation system and method and a holographic image generation method, the spatial light modulation system comprising: a spatial light modulator suitable for modulating the phase of a laser signal from the outside and outputting a modulated planar light field; the device comprises a spatial light modulator, a first lens unit and a second lens unit, the spatial light modulator is located on a first focal plane of the first lens unit, a second focal plane of the first lens unit coincides with a first focal plane of the second lens unit, and the first lens unit and the second lens unit sequentially carry out Fourier transformation on a planar light field output by spatial light modulation. And zooming of the plane light field is realized at the second focal plane of the second lens unit. 一种空间光调制系统、方法和全息图像的生成方法，该空间光调制系统包括：空间光调制器，适用于对来自外部的激光信号的相位进行调制，输出调制后的平面光场；第一透镜单元和第二透镜单元，空间光调制器位于第一透镜单元的第一焦面，第一透镜单元的第二焦面和第二透镜单元的第一焦面重合，第一透镜单元和第二透镜单元依次对空间光调制输出的平面光场进行傅立叶变换，以在第二透镜单元的第二焦面处实现平面光场的缩放。