I studied Physical Chemistry with thesis of fabricating semiconductor thin film in application of opto-electronic devices.I am currently working as an optical engineer. As an optical engineer, my main job is lenses designs which are mainly fixed-FOV, multiple-FOV, continuous zoom lenses and several more of special types in VIS, MWIR and LWIR wavelength range, mostly applied in military purposes. My products are used in long range Electro-Optical System, Thermal radar, Hand-held binocular/monocular thermal camera, Heads-up Display, Driving Observation System, etc. I also have years of experience in lens assembling, alignment and testing with several optical measuring equipment in both prototype and mass production.