Heat‑Absorbing Color Glass Filters for Projectors

Heat‑Absorbing Color Glass Filters for Projectors Heat-absorbing optical color glass is specifically engineered to transmit visible light while simultaneously absorbing infrared radiation. By converting unwanted IR into heat, it helps maintain lower temperatures for downstream optical components, thereby functioning as a visible shortpass filter. This characteristic makes it particularly suitable for use in projector light engines, where arc or LED light sources emit significant amounts of IR that may damage sensitive components such as LCD/DLP modules, adhesives, or optical coatings.In practical applications, KG series glass plates are commonly employed to safeguard heat-sensitive components in high-intensity illumination systems and projection equipment.Thermal management in projector design often involves the combined use of dichroic hot or cold mirrors with heat-absorbing glass. Hot mirrors are designed to transmit visible light while reflecting infrared radiation, whereas col…