Flash light subregion illuminance optic system

The utility model discloses a flash light subregion illuminance optic system comprises condensing lens, luminous discharge tube, circuit board and shell, and condensing lens is installed to the frontend of shell, installation luminous discharge tube in the shell behind the condensing lens, and the luminous discharge tube outer loop is around there being facula plastic cover, and luminous discharge tube and facula plastic cover are installed on the circuit board, and the circuit board is fixed inside the shell, the utility model has the characteristics of the plastic of adoption facula is covered control light spot pattern, is changed output light spot's subregion illuminance, is avoided the license plate to cross the exposure with mounted position change output light spot's dim light scope, the luminousness of change subregion illuminance dim light piece less through changing the big of subregion illuminance dim light piece. 本实用新型公开了种闪光灯分区照度光路系统，是由聚光镜片、气体发光管、电路板和外壳组成，外壳的前端安装有聚光镜片，聚光镜片后的外壳内安装气体发光管，气体发光管外环绕有光斑整