OPTICOELECTRON DEVICE TO VISUALIZE IMAGE Russian patent published in 1997 - IPC

FIELD: optics. SUBSTANCE: invention can be used for observation under decreased level of illumination, specifically, for underground working of mineral resources, for supervision of situation on railway tracks and so on. Radiation in spectrum region 0.4-0.92 $$$ goes to mirror-lens objective 1 which contra-reflector 6 operates for reflection and image is generated on photocathode of electron-optical converter 2. At same time thermal radiation in spectrum region 2-15 $$$ forms image on photocathode of infra-red electron-optical converter 8 with the use of objective 1. In this case dichroic coat of contra-reflector 6 which is last optical surface of objective 10 lets spectrum region 2-15 $$$ to be passed. Image from screen of electron-optical device 8 is transmitted with the aid of transfer objective 9 and capacitor 7 to photocathode of electron-optical device 2 which increases brightness of both images which are observed by operator through eye-piece 3. EFFECT: expanded application field, improved functional efficiency of device. 1 dwg