infra red heating become more popular recently because of low cost energy and efficienty , Radiant IR-Heater Tube is the most useful technology to achieve this as i know, I'm interested to collect IR generated by this kind of IR-Heater Tube in a linear fresnel concentrator for Infra red Radiations to obtain a high temperature in a centrale cynlindrical surface. This kind of IR Concentrator Exists ? Some one can advice ?