Cold mirrors are heat control filters that are designed to reflect visible light while transmitting infrared radiation.
They consist of a dielectric coating deposited onto a substrate, typically glass or quartz. The dielectric coating reflects visible light while transmitting longer wavelengths, resulting in a significant reduction in heat transfer. Cold mirrors are commonly used in applications such as projection systems, lighting fixtures, and heat control windows, where they help to manage heat build-up while maintaining optical performance.
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