大角度照明彩虹全息图制作技术及特性

Fabrication technique and special characteristic of rainbow holograms with large illumination angle

大角度照明全息图具有新的应用领域及价值。彩虹全息图的特点使之在大角度照明上比起其它类型全息图有着明显的优势。用本文介绍的方法 ,可有效消除因大角度照明造成的叠加在图像上的有害粗条纹 ,从而保证图像的质量。对大角度照明全息图与普通全息图的不同成像特性作了分析。

Holograms with large illumination angle have new application and value.With special features,rainbow holograms have obvious advantage in large angle illumination over other kinds of holograms.Using the technique described,the harmful thick fringe patterns,which are generated by large angle illumination and superimposed to the images can be eliminate,so that the image quality can be ensured.The imaging characteristic different from normal holograms is analyzed.