A cold mirror is designed to reflect visible light and transmit infrared radiation/energy (heat). As a result, the visible light is fully available for the lighting application while reducing up to 90% of the reflected heat. Cold mirrors are frequently applied to reflectors that are located close to the source. EMF produces thousands of cold mirrors for head-up displays every month.
Typical characteristics of a cold mirror include:
Over 90% reflectance in visible light
Minimum 83% transmission beyond 800 nanometer
Large diameter reflectors up to 36″ or large format flat glass
Large volume reflector throughput (>3,000 MR11s per production run) resulting in low unit cost
Uniform distribution across large deep dish substrates