0° AOI 25mm Dia, Cold Mirror

Product Details 0° and 45° Angle of Incidence Options Available Reflects 90% of Visible Light Transmits 80% of the NIR and IR These Cold Mirrors have a 0° and 45° angle of incidence and are ideal for decreasing the undesirable heat caused by infrared radiation. A multi-layer dielectric coating reflects 90% of visible light while transmitting over 80% of the NIR and IR. Cold Mirrors function satisfactorily with resistance to damage from ambient temperatures of -45°C to +232°C and are ideal for projection systems, where heat build-up can lead to system damage. Made of BOROFLOAT glass, these Cold Mirrors can be cut to the desired size for any application. Specifications General Type: Cold Mirror Physical & Mechanical Properties Diameter (mm): 25.00 Dimensional Tolerance (mm): ±0.25 Thickness (mm): 3.30 Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More BOROFLOAT Coating: Cold Mirror, 0° Coating Type: Dielectric Coating Specification: R avg >90% @ 425 – 675nm T avg >85% @ 800 – 1200nm Wavelength Range (nm): 425 – 1200 Surface Flatness (P-V): 4 – 6λ Angle of Incidence (°): 0.00 Surface Quality: 80-50 Regulatory Compliance Certificate of Conformance: View ×