FJW Optical Systems, Inc.FJW, the world leading manufacturer of self-contained, battery-operated IR viewers, UV viewers, VIS/NIR/SWIR cameras, & Thermal Cameras. Viewers convert near-IR, SWIR and UV to visible. Sensitivity ranges available from 180 to 2200nm. Video output available. Applications include inspecting IR diodes, aligning lasers, research, biotech, and document analysis. Optional lenses and filters available.