Since 1992, Delong Instruments has been active in R&D of transmission electron microscopes, electron-optic systems, electron guns and other high-tech devices in the field of micro and nanotechnologies. We focus on the development and production of low voltage TEMs LVEM 5 and LVEM 25 and Schottky electron gun DIGUN. Our company is also well-known for the unique customer and OEM solutions and as a supplier of customized special components made from the first draft up to the final device. For our expertise, we are a favoured partner in large international projects.