GaAs infrared searchlight with novel structure of a coaxial double reflective bowls was used in 1985 for police night vision device.
Field test showed that this tool is featured by novel structure, scientific design, reliable use and high core recovery. Compared with the adjacent Wells, its core recovery increased by 22.5 %.
In earlier stage, Moyan 's narration showed western style, such as: the novel structure led by writer' s feeling, and the mixed language method.
The utility model has novel structure and dual-functions of side bat and vertical bat.