![]() ![]() The radiometric intensity data for all of the sources were measured with a broad band thermopile radiometer having a Potassium Bromide (KBr) window.Custom IR sources are available upon request.Shortened “Point Source” filaments are available for all EK-style IR sources.Industry standard TO-3, TO-5, or TO-8 packages.Internal gold plated parabolic reflector.Window options including no window, CaF2, ZnSe.Kanthal filament with emissivity of 0.7.Window options denoted by X include: No Window (X=0), Sapphire (X=1), CaF2 (X=2), ZnSe (X=3) All of the Kanthal based lamps (EK-series) operate in steady state with constant low voltage DC input for long life. Kanthal filaments are wire wound in the form of right cylindrical coils of various diameters and length. *Dual filament IR source Pulsable IR Sources All include gold plated parabolic reflectors and an inert gas backfill. In the Steady State version tungsten filaments are wire wound in the form of right cylindrical coils of various diameters and length and operate with constant low voltage DC input for long life. Operating temperatures up to 1900°K are standard with the EP-series source. Tungsten filaments are provided in a variety of sizes to accommodate various frequency and modulation requirements. Latest technology in packaging and window options.Large temperature modulation in pulse mode at elevated frequency.This allows high power transmission in the near infrared. The uniqueness of our product is the integration of the sapphire window with the tungsten filament. State-of-the-art, patented incandescent IR sources developed by Helioworks utilize sapphire because of its high transmission in the near infrared. However, to make a source of intense infrared emission using tungsten, another protective window must be used. Tungsten achieves the highest temperature and power of any practical material and is therefore a valuable source of infrared emission at longer wavelengths. ![]()
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