Gold Reflectors for IR Heaters

As a vertically integrated manufacturer of high purity raw materials, Heraeus produces many of the raw materials using in the construction of all the Infrared heaters in our program. This video shows a few of the steps of gold production from raw material to a semi finished component ready for the next step in the process.


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Gold Reflector for Targeted Heat

gold bars Heraeus Noblelight uses gold as the reflector material for its infrared heat lamps because gold offers the highest reflectivity of any material in the infrared spectrum. A thin layer of gold directly on the back side of the quartzglass tube forms an industrial mirror. A precisely designed curvature of the gold redirects infrared radiation into a unique and consistent pattern for the products to be heated.

Because the gold is on the back side (opposite the target of the heating) of the infrared heater, and the reflection takes place between the glass and the gold on the inside of the heater, cleaning is not necessary for optimal reflectivity. Other manufacturers' heaters use mechanical secondary reflectors that require cleaning (and that don't provide the targeted heat properties of Heraeus infrared lamps).

Low heat loss, elimination of stray radiation and gold's high efficiency in reflection all come together to provide effective, targeted heating. Heraeus lamp design is a sign of competence, expertise and quality in infrared heating.

High Reflective Properties of Gold

As the chart below illustrates, gold provides higher and more consistent reflective properties than many other metals, including aluminum, chromium, nickel, iron and molybdenum. Heraeus Noblelight's choice of gold helps in the development of highly efficient infrared lamps with targeted heat.

Reflectivity of Metals


Heraeus offers complete systems using infrared technology; we can design a system to meet your specific, unique and demanding needs.
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Heraeus Noblelight  •  Buford GA 30518 USA  •  Phone 678.835.5764  •  Email sales@noblelight.net