OptoScan Monochromator

Compact, affordable  LED illuminator

  • Designed for transmitted light and routine fluorescence applications
  • Wide range of control options to operate manually or with any software
  • Easily integrates with a wide range of microscopes

The OptoScan Monochromator controls bandwidth in real-time during experiments, allowing each excitation wavelength to be optimized independently. Thus, when Stokes shifts are large or when fluorescence intensities are weak, a relatively large bandwidth can be selected to maximize the signal-to-noise ratio. Conversely, if there is a small Stokes shift or if the fluorescence intensity is high, the slit width can be minimized to reduce bleed-through and optimize dynamic range.  This level of real-time interaction is crucial to accomplish today’s complex protocols.

Optical Configuration Enhanced Czerny-Turner configuration with fast F/2 light collection and off-axis parabolic mirrors to minimize aberrations
Diffraction Grating 1200 line ruled grating blazed for broad UV/visible range, 1800 and 2000 line holographic gratings for demanding applications
Wavelength Resolution 300-800 nm specified with 0.5 nm resolution at ±1.5nm accuracy
Bandwidth Resolution 0-30 nm specified with 0.1nm resolution at ±0.2nm accuracy
Wavelength Switching 200 nm transition < 1.5 ms, 50 nm transitions in < 1 ms
Bandpass Switching Typical transition times of < 1.5 ms for both input and exit slits
Digital Shuttering (TTL) Typically < 2 ms depending on bandpass
Sub-Millisecond Control of Center Wavelength Experimental precision
Sub-Millisecond Bandpass Control Spectral and intensity optimization at each wavelength
Supports Hg/Xe Lamps as well as Xe Lamps Ability to exploit spectral peaks
Modular Design Ability to utilize the light source independently as a white light source if required
Light Guide Couplings to all Popular Microscopes Easy integration into current experimental arrangements
External Iris Diaphragm Manual intensity control without the need for ND filters
Built-In Fast Electronic Shuttering on all Versions Fast on/off


  • Fluorescence photometry
  • Fluorescence imaging
  • Optical wavelength scanning
  • Photolysis

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