B&W TEK, Inc. located in Delaware, USA, is a fast-growing optical technolohgy company integrating development and production, and marketing. B&WTEK brings you innovative solutions in CCD, PDA, InGaAs, and PbS Spectrometers and Raman, fluorescence spectrometer and high power semiconductor laser. The products are widely used in light measurement, environment monitor, ancient art analysis, forensic identify, pharmaceutical analysis, chemical analysis, materials science , life science and some other area.