LightGate™ – the total internal reflection (TIR) prism from Oerlikon Optics – is used to separate the illumination and imaging path in DLP® based light engines, particularly for rear projection TVs. The LightGate™ is a key component for maximum contrast, high light throughput and highly uniform images. It enables on-axis illumination, short back focal length and compact designs. The LightGate™ is characterized by high performance AR coatings, superior quality of blackening and a tightly controlled air gap. Oerlikon also offers LightGate™ Reversed, a reverse TIR(R-TIR) using various types of high index glasses.
Oerlikon Components optics