Bonded glass components are used for example as polarizing beam splitter cubes (PBS) or as total internal reflection (TIR) prisms (LightGate™). For these applications, we have developed advanced processes allowing us to produce components with superior quality at competitive prices. One example is our capability to produce very small cubes with dimensions in the 1 mm range. A special bonding process allowing patterned glue application and precise air gap control was developed for small LightGate™ prisms.