This is because of the small recording area of the electronic record device (CCD), so the recorded digital hologram resolution is very low and the reconstruction image quality is affected greatly.
这是由于电子记录器件CCD的记录面积小，所记录数字全息图的分辨率低，这大大影响了再现像的质量。
2
In this paper, we propose a method for making a one-step lensless single-ray rainbow hologram, which makes the system structure simpler while the area of hologram larger.