Hot Mirrors are available in 0° angle of incidence and are ideal for decreasing the undesirable heat caused by infrared radiation. A multi-layer dielectric coating transmits 90% of visible light while reflecting over 95% of the NIR, making such items suited for projection systems where heat build-up can lead to system damage.
| Material：Schott Borofloat glass | Dimension Tolerance(Square)：±0.25mm |
| Thickness：±0.2mm | Parallelism：<1' |
| Transmission：Tavg>90%@425~675nm | Surface Quality：60/40 |
| Reflection：Ravg>95%@750~1150nm | Diameter Tolerance：+0.0/-0.25mm |
| AOI 0° | |
| Surface Figure：<5λ/every Dia 25mm² @633nm | |
