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TECHSPEC® High Performance Hot Mirrors feature a multi-layer dielectric coating optimized for greater than 90% transmission of visible light and greater than 95% reflection of IR wavelengths. For 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.