For applications such as transmission, absorption and reflection, illumination sources are needed. We offer a wide range of different light sources, to suit your specific needs. An overview of the different options can be found on this page. Tungsten Halogen light sources are mostly used to do  measurements in the visible and NIR range. Our Halogen sources provide a very stable output combined with long bulb lifetime. The high-stability enables their use in reflection and transmission configurations or as an irradiance calibration light source. Most importantly, the Halogen light’s spectral output is a smooth black body curve which provides for maximized dynamic range.

Our Deuterium light sources are known for their stable output and are used for UV absorption or reflection measurements. These can also be used as irradiance calibration sources due to their high-stability. The standard LS-DH-S mixes the Halogen light with the Deuterium light, thus producing a wide spectral range light source. The output spectrum of Deuterium light sources exhibits several peaks, with a prominent peak at 656 nm. The LS-DH-S-BAL incorporates a dichroic beam splitter installed to minimize these peaks, providing a smooth spectrum from 200-2500 nm.

Our pulsed Xenon light source is used in applications where a long lifetime and high output power is needed, such as in fluorescence measurements. This is an affordable UV source, but the spectral output is not as smooth and continuous as the Halogen and Deuterium light sources. LED light sources provide high power at a precise wavelength. A typical application for LED sources is fluorescence. They provide long lifetime, short warm-up time and high-stability. For wavelength calibration we offer a variety of sources including Argon, Mercury-Argon, Neon, Zinc and Cadmium. All our spectrometers are factory wavelength calibrated and do not require recalibration as they have fixed slits and optics. For those customers who wish to do their own calibrations, the LS-CAL light sources can be used for recalibration purposes. For auto-calibration software provides a calibration procedure to make this easy. New to the illumination sources family is the LS-LDXE, a very high brightness light source. It has an extremely long lamp life, a spectral range from 200 nm to 1100 nm and a high-stability.

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