Welcome to Upstream
Upstream Engineering is a Finnish optics company supplying optical designs and modules for LED based projectors and advanced LED lighting. Products are based on the proprietary PhotonVacuumTM technology, which enables the best optical performance in the smallest size.
The PhotonVacuum technology is based on the innovative and unique optical design, which enables superior etendue preservation and collects all the light from a LED in the smallest physical size. The technology is the ultimate solution for LED based projectors like picoprojectors, embedded projectors, ultra-portable projectors and home theaters. In addition to the projector applications the PhotonVacuum technology provides significant advantages in many advanced LED lighting applications.
