视角与视角通道是全息摄影非常重要的概念,但它一直未受到应有的重视和深入全面的研究。作者首先给出了它们的定义,指出只要灵活应用视角通道就可以拍摄出许多光怪陆离的全息图片,诸如双通道、左右通道、颜色通道、合成全息等等。此外,利用它还可对于全息学中的某些基本现象做出解释(如细光束成像的问题)。 Perspectives and perspectives Channeling is a very important concept of holography, but it has not received due attention and thorough research. The authors first give their definitions and point out that as long as the application of the viewing angle channel is flexible, many bizarre holographic pictures can be taken, such as dual channels, left and right channels, color channels, composite holograms and the like. In addition, it can be used to explain some of the basic phenomena in holography (such as the problem of beam imaging).