When it comes to clinical diagnoses, light is the key to prediction accuracy and to making progress in analytical quality. However, light is not always simply light. “What really makes the difference is a light source with long-term stability – one that delivers the same light in the required wavelength,” explains Jörg Warrelmann, Director Sales Medical Europe at SCHOTT. Many analytical instruments are practically in use 24 hours a day. The latest LED lighting systems remain stable after 30,000 hours in operation. Nevertheless, one problem remains. Based on their age and other operating factors, the light intensity of LEDs changes over time.
SCHOTT offers a sensor technology that can monitor the wavelength, and, if needed, make readjustments. The solution enables experts in diagnosis a sustainable addition of analytic security, thanks to an optimal lighting environment. Fluids such as blood or urine are not moved around in front of the light source; the light is what moves instead. This is where SCHOTT’s optical fiber PURAVIS® can demonstrate its strengths. “Light guides are very resistant to rapid movement,” notes Warrelmann. A multi-branch device with several light guides is fed from a LED light source and can move quickly back and forth. SCHOTT always offers customer specific modifications. In addition to PURAVIS®, other types of light guides such as quartz or polymer fibers can be utilized for specific wavelengths.