89 North

LDI-5 Laser Diode Illuminator

The LDI-5 is the big sister of the LDI-4 laser diode illuminator.  Once again we listened to our users who asked for a paired down version of the LDI-NIR.  The LDI-5 has increased power over her little sister and expands into the near infra-red with the addition of a 730nm line.  This unit is also available with a 488nm laser for FITC/GFP and with a 577nm laser for TRITC/mCherry…or both!

In Stock

The LDI-5 is a multiline, solid-state laser illuminator offering 5 laser lines from the VIS-NIR with powers up to 1W. The unit offers feedback controlled output stability and up to a 100:1 linear dynamic range.  LDI-5 has the power where you need and the available variations let you get exactly what you want.

Number of laser lines5 lines
Laser wavelengthsLDI-5 : 405/470/555/640/730

LDI-5-488 : 405/488/555/640/730

LDI-5-577 : 405/470/577/640/730

LDI-5-488-577 : 405/488/577/640/730

Output powerOut of 400 micron, 0.22 NA fiber


405 nm –  450 mW
470 nm –  1000 mW  OR 488nm – 1000mW
555 nm –  1000 mW  OR 577nm – 750mW
640 nm –  900 mW

730 nm –   850mW

Lifetime20,000 hrs – 2 year warranty
Stability<1% RMS (at 100% laser power)
Dimensions12.5″ x 9.2″ x 5.75″
High output powerShorter exposures
Faster imaging
Faster activation times in optogenetics and photoactivation experiments
Faster bleaching times in FRAP experiments
Feedback controlled optical stabilityQuantitative imaging, ideally suited for ratiometric imaging
More repeatable optogenetics experiments
Up to 100:1 linear dynamic rangeAbility to turn power down when needed and maintain stability and quantitative imaging
5 laser lines across the spectrumCovers most of the standard fluorescence probes
No user alignmentEasy to use and maintain
TTL and Analog controlNo need for software specific drivers
  • Spinning Disk Confocal Illumination
  • Photoactivation/Photoconversion/FRAP
  • Optogenetics
  • Whole Animal Imaging

Related products

  • 89 North

    LDI-NIR Laser Diode Illuminator

    The LDI-NIR is the same great multiline, solid-state laser illuminator as the LDI-7, but offers more power and extends the range into the NIR.  This affordable multi-mode laser launch will change how you imagine laser illumination.

    (0 reviews)
    Read More
  • 89 North

    PhotoFluor LM-75

    Low-cost, high-power, ultra-stable metal-halide light source

    • Mounts directly to a microscope with a small footprint
    • High UV output and no flickering
    • Well-suited for routine fluorescence, FISH, and clinical applications
    (0 reviews)
    Read More