Heat Control Filters
Heat control filters are specialized optical components engineered to manage infrared radiation while maintaining optimal visible light transmission in optical systems. Acting as sophisticated thermal energy managers, these filters selectively reflect or transmit specific portions of the electromagnetic spectrum - a critical capability for applications ranging from high-power illumination systems to medical lighting where precise control of both visible light and thermal energy is essential.
Andover Corporation manufactures heat control filters using advanced thin-film dielectric coating technologies deposited on thermally-stable borosilicate glass substrates. Our comprehensive portfolio includes hot mirrors that transmit visible while reflecting infrared, cold mirrors that do the opposite, specialized UV cold mirrors for ultraviolet applications, and IR suppressing filters for extended blocking across the infrared spectrum. Using combinations of these filters can eliminate up to 99% of unwanted radiation, while maintaining up to 90% transmission in desired wavelength regions. Whether you need standard components or custom solutions, our durable first-surface coatings ensure reliable performance even in demanding high-temperature environments up to 200°C.
