A Weekly Publication of 《Popular Literature》 Edited by Zhao Jingshen in Shanghai 《Shenzhou Daily》 in the Fourties;

Zhao Jingshen Translation and Research on Andersens Fairy Tales;

Relation of depth of field between numeral camera and traditional camera;

ome aspects in the adjustment of the depth of field;

There is very shallow depth-of-field in current iris recognition systems.

On the base of line element hologram, the recording and observing conditions of rainbow hologram of large scene depth without slit are discussed, and some rainbow holograms of large scene depth were recorded in our experiments.

The article analyses the line-element hologram width of zero-path-differencerainbow holography and suggests a way to make large scene depth rainbow hologram using zero path-difference rainbow holography.