文章旨在提出一种用于激光直写合成全息拍摄的全息光学元件的制作技术。实验结合激光直写合成全息拍摄时所需柱面透镜的功能，参考全息光学元件的制作原理来制作图像柱面压缩全息光学元件，实现柱面透镜的光学功能，并使元件具有大面积、短焦距、会聚光均匀分布的特点，满足激光直写合成全息拍摄对图像的需求。通过实验，应用自制全息光学元件拍摄出来的全息图具有较好的水平视差和较大的视场角，并具有较高的衍射效率。实验和理论分析表明,用文章所提出的图像柱面压缩全息光学元件来代替传统的光学元件，进行激光直写合成全息图的记录是一种十分可行的,可以有效改进图像质量，提高光能利用率的方法。

This article presents the facture of a holographic optical element for laser direct writing synthetic holograms. Referring to the function of cylindrical lens and the principles of holographic optical elements, we make this holographic element, which can achieve the optical function of cylindrical lens, and have the advantage of large-scale, short focal length and well-distributed light energy, in order to meet the requirements of laser direct writing synthetic holograms. In the experiment, we use the self-make image horizontal compression holographic optical element, and we get a hologram with a good horizontal parallax, large field of view angle, and a high diffraction efficiency. Experimental and theoretical analysis shows that, compared with the traditional optical element, the self-make image horizontal compression holographic optical element has many advantages, including improve the image quality and improve the utilization of light energy.