Microscope Illumination

Lumen Fluorescence Illumination Systems
The Lumen 200 Fluorescence Illumination System is a powerful, cost effective alternative to standard 100 Watt mercury and halogen lamphouses. The combination of Prior's proprietary 2,000 hour life, 200 watt metal arc lamp and two or three meter liquid light guide provide unrivalled versatility and illumination power. The Lumen 200 utilizes a metal halide lamp rather than the more traditional high pressure mercury or xenon burners. This means 2000 hours of stable output compared to a maximum of 300 hours for a mercury lamp. Coupled to the microscope using a liquid light guide there is very little heat transfer helping to eliminate thermal drift during time lapse experiments. The Lumen 200 also incorporates a variable light attenuation control to reduce the potential of bleaching and phototoxicity. Prior also offers the Lumen 220 model which offers extended transmission in UV and IR compared to the standard Lumen 200 model.

LumenPRO Fluorescence Illumination Systems
For fully automated solutions the Lumen 200PRO features a motorized internal six position filter wheel for fast switching of excitation wavelength. Being remote from the microscope means no vibration. No vibration means no settling time. No settling time means faster imaging! The light attenuation and shuttering is also motorized in the Lumen 200PRO allowing a selection of intensity over 100 increments to perfectly balance exposure to the sensitivity of your cells and fluorescent markers.Prior also offers the Lumen 220PRO model which offers extended transmission in UV and IR compared to the standard Lumen 200PRO model.

LumenLED Illuminator
The use of LEDs as an excitation source for fluorescence microscopy offer a range of advantages over conventional illumination systems. The LumenLED system from Prior Scientific goes even further with the introduction of new functionality which brings the technology into mainstream fluorescence microscopy. LumenLED offers two modes of operation which allows the LEDs to be optimized for specific applications. In Constant Light Mode, a photodiode is used to provide a closed loop feedback mechanism to ensure short and long term stability of illumination intensity, essential for quantitative experiments. For more general imaging applications, Constant Current Mode is available to assure maximum illumination intensity.

Microscope Illumination Systems
We also offer a range of light sources designed for use in stereo microscopy with power and accessories to suit many applications. These include cold light sources of 150W (CL150 Fiber Optic Illuminator) and 20W (CL20 Fiber Optic Illuminator) with a vast array of light guides and ring lights to perfectly illuminate large and small specimens under stereoscopic inspection.

For the budget conscious we have a small dedicated Fluorescent Ring Light which gives an even illumination at a fixed intensity and comfortable colour temperature, perfect for routine inspection applications.