Microscopy & Microtechniques
New UV Ring Light for Stereo Microscopy Launched
Jun 30 2020 Read 1614 Times
The new SCHOTT® VisiLED UV Ring Light for stereo microscopes combines classic bright-field illumination with UV illumination. It is the only segment ring light on the market in which white-light and UV-LEDs are alternately installed in eight segments. This LED arrangement allows objects to be examined from the same illumination angle, which significantly improves the ability to compare and reproduce resulting images. While the homogenous white light displays samples in natural colour, UV excitation reveals previously invisible parts of the sample through fluorescence. The SCHOTT MC 1100 Controller (available for separate purchase) makes it easy to switch between the two illumination modes.
The UV Ring Light for stereo microscopes is used in applications such as forensic document examination, crack detection or examination of paints and varnishes. With fluorescent markers and UV light, previously invisible details can be made visible. A UV protection filter in the observation path ensures that the user can look safely at the sample through the eyepieces and clean operation of the microscope camera.
"We were increasingly asked by customers for UV illumination that is safe and easy to use,” said Dr Christian Zawar, Senior Sales Manager at SCHOTT Lighting and Imaging. “In addition, the user always needs a normal bright field illumination on the microscope. Our new VisiLED UV ring light combines both of these capabilities in a unique way."
The VisiLED UV Ring Light contains UV-A LEDs that emit wavelengths between 340 and 420 nm, with a central wavelength of 375 nm. The new UV ring light offers an illuminance of 100 klx in bright-field mode and 160 W/m² in UV-illumination mode. Each ring light comes equipped with the SCHOTT GG435 UV Protection Filter. Although the segment ring light belongs to risk class 3 according to IEC62471, the filter ensures maximum safety for the eyes when looking into the eyepieces.
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