The system has key advantages in live-cell recordings where long term drift in intensity can be a problem with alternative light sources. The ultra-high stability and “instantaneous” vibration-free switching and intensity modulation are valuable in a wide range of applications such as combined imaging and electrophysiology, voltage sensitive dye studies and high-speed tracking. The facility to “gate” the light source directly from the camera and thus only expose the specimen whilst the camera is integrating helps to reduce photobleaching and also prevents bleedthrough during frame readout.

Ultraviolet and white LEDs are also available for uncaging applications and brightfield illumination.

• Fluorescence Microscopy
• Live-cell Imaging
• Uncaging
• Macroscopic Imaging

• Dual power supply with photodiode feedback loop for absolute short and long term stability
• Sub microsecond digital switching and external intensity control
• Current and power metering with overload protection
• Modular LED heads covering the ultraviolet and visible spectrum
• Muliport couplings to all popular fluorescence microscopes
• Overdrive facility for extra intensity during discontinuous operation

Wavelength Options

The range of wavelengths available from ultra-bright LEDs covers the absorbance peaks of most fluorescence indicators. The table below shows the standard range, however we can also source more specialist devices.
Depending on the combination of wavelengths required we can combine two or more devices using dichroic mirrors. Please contact Cairn for recommendations on the best LEDs and filters for your experiments.

  For data on our selection of LEDs please click here 

   If only single wavelength illumination is needed try the        OptoLED Lite

 We regret that this product cannot be sold in the USA for microscope epi-fluorescence illumination applications