ASTROHN Technology Ltd. in “Together with Science” with Anton Voytsekhovskiy

Vladimir Popov, General Director of ASTROHN Technology Ltd. says their specialist found the solution, and one last thing to be done was to develop an appropriate device. Sergei Maltsev, Thermal Imaging Project Manager of Lytkarino Optical Glass Plant, explains the operating principle of the developed device, a thermal imager, that provides remote body temperature control in a stream of people avoiding queues and crowds. For high and accurate performance, the thermal imager must be equipped with a top-grade optic lens and matrix. The major difference between optic lenses for thermal imagers and photo/video cameras is that the first are made of germanium crystals. The original material, pieces of grey metal, is supplied from China and Russian Far East to the country’s only processing plant, ASTROHN Technology Ltd., in Krasnoyarsk, where it is melted in a special furnace and then solidifies, forming a single-crystal. Such single-crystal is precisely cut into blanks. The blanks are ground and polished, turning into ready-made lenses. The final step is checking accuracy on a highly-precise machine.

Once finished, the lenses are transferred to the neighbor enterprise, Lytkarino Optical Glass Plant, to assemble the devices and adjust them. Here, thermal imaging lenses are manually connected and adjusted to video cameras. In the designed thermal imager, the thermal camera reads temperature indicators from open body surfaces, the video camera shows faces, and software ensures their simultaneous automatic operation. In case of detecting high temperature, alarm is activated, the camera takes pictures of the person, both normal and infrared images. Further actions depend on intra-organizational rules.