Double spectrum image detector

The double spectrum image detecting instrument includes ultraviolet imaging system, background imaging system, signal acquisition device and signal processing unit. The ultraviolet imaging system includes imaging objective, two-color spectroscope, ultraviolet image enhancer, coupling lens and video camera. The background imaging system include the imaging objective, the two-color spectroscope, reflector, one other coupling lens and one other video camera. The light beam from the imaging objective is divided in the spectroscope into one ultraviolet beam and one background beam; the ultraviolet beam is imaged on the input plane of the enhancer and the spectral converted and brightness enhanced image is imaged in the first video camera; the background light beam is reflected, coupled and imaged in the second video camera; and two path of images are further processed, superposed and restored. 本发明是一种双光谱图像检测仪。包括有紫外成像系统、背景成像系统、信号采集装置及信号处理装置，其中紫外成像系统包括有成像物镜(1)、二色分光镜(2)、紫外图像增强器组件A、耦合透镜(9)、摄像机(10)，背景成像系统包括有成像物镜(1)、二色分光镜(2)、反射镜(11)、耦合透镜(12)、摄像机(13)，成像物镜(1)投射到二色分光镜(2)分成紫外光束和背景光束，紫外光束透过二色分光镜(2)成像在紫外图像增强器A的输入面上，光谱转换和亮度增强后的图像由图像增强器组件A的荧光屏输出，经耦合透镜(9)耦合到摄像机(10)上；背景光束经反射镜(11)反射，再经耦合透镜(12)耦合到摄像机(13)上，两路图像由信号处理装置处理、叠加复原。本发明响应速度快，紫外的转换效率高，可准确地检测辐射发生的位置和强度。