Julight srl is an Italian innovative company, founded in 2011. Julight expertise allows the development of any type of sensor or measuring instrument based on laser and photonic technologies, thanks to the solid know-how in light sources, photodetectors, electronic design, software and firmware, and opto-mechanical design. Julight manufactures and markets an innovative and unique class of non-contact vibration and distance measuring sensors and instruments (laser vibrometers and triangulation laser sensors), which are based on the smart self-mixing technology (SMI). Julight also offers state-of-the-art customized services based on the exploitation of photonic and electronic technologies, spanning from the conception and design of new measuring solutions to the realization of prototypes and small-series production. Measurable physical quantities and properties include: distance, displacement, speed, flow, roughness, thickness, material composition, and many other metrological quantities.