25mm Diameter, 45° AOI, Hot Mirror

Product Details Ideal for Reducing Heat Reflects >90% of the NIR and IR Transmits >85% of Visible Light Hot Mirrors are available in 0° or 45° angle of incidence options and are ideal for decreasing the undesirable heat caused by infrared radiation. A multi-layer dielectric coating transmits 85% of visible light while reflecting over 90% of the NIR and IR, making them suited for projection systems where heat build-up can lead to system damage. Note: When using high power illumination, forced air cooling is recommended. Hot mirrors are crucial in many projection and illumination systems where high levels of heat can quickly damage sensitive components. Hot mirrors are specially coated to transmit visible light while reflecting the NIR, a major attributor to heat generation. By using a hot mirror, heat levels are limited with minimum impact on the overall system performance. Specifications General Type: Dichroic Filter Physical & Mechanical Properties Diameter (mm): 25.00 ±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: Hot Mirror, 45° Coating Type: Dielectric Coating Specification: Surface 1: 45° Hot Mirror Surface 2: None Wavelength Range (nm): 425 – 1125 Surface Flatness (P-V): 4 – 6λ Angle of Incidence (°): 45.00 Transmission (%): >85, 425 – 675nm Reflection (%): >90, 750 – 1125nm Surface Quality: 80-50 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×