制作三维真彩色模压全息图母版的新技术

The New Technique of Making the Masters of 3D True Color Embossed Holograms

描述了一种新的三维真彩色模压全息图母版的摄制方法，本方法最主要的特点是解决了在拍摄光刻胶版时三个菲涅尔全息像对准的难题，利用本方法，在拍摄光刻胶版时三个菲涅尔全息像的对准不必象普遍采用的那样靠调整三个菲涅尔全息图的位置来达到，而只须在记录每张菲涅尔全息图时根据计算数据采用不同的物体位置即可．本方法在实际操作上易实现．不仅拍出的真彩色全息图像的三原色像重叠得十分准确，而且由于记录光路安排合理，因而全息图的质量得到保证．文中给出了理论计算，全息图记录光路安排及实验结果．

A new technique of making the masters of 3D true color embossed hologramsis described.The Tehnique has solved the difficulty of aligning the three images of Fresnelholograms in the recording process of photoresist plate.Using the technique,the alignment ofthe three Fresnel holographic images can be easily achieved by properly positioning the objectwhile recording the three H_1,instead of adjusting three H_1 as the normal methed which has suchdefect that it is impossible to obtain high quality holograms.The technique simplifies therecording processes,and makes the holograms easy to achieve accurate true color.The theoreticalcalculation,table optical geometry and the experimental results are presented。