LDI-4 Laser Diode Illuminator
LDI-4
The LDI-4 laser diode illuminator is a user inspired version of the original LDI-7. Many researchers were asking for a laser launch covering only the 4 basic lines: DAPI, FITC, TRITC, Cy5. The LDI-4 has been designed with exactly these lines in mind. While the number of lines inside the box has been reduced, no compromises have been made on quality and performance. This unit is also available with a 488 nm laser for FITC/GFP and with a 577 nm laser for TRITC/mCherry…or both! Note that we can work with you to provide solutions for your unique needs.
Key features
- 4 laser lines covering the most widely used fluorescence probes
- Up to 1000 mW output power per line
- Feedback-controlled optical stability
- Optional 488 nm & 577 nm lasers
- No user alignment required
- TTL & Analog control
References and product variations
Part number
Combined wavelengths (nm)
Options
Ask for a quote
Part number LDI-4
Part number LDI-4-577
Part number LDI-4-488
Part number LDI-4-488-577
Performance by Wavelength
Wavelength
Optical Power Min (1)
CW Stability (typ.) (2)
Max Rise Time (typ.) (3)
Max On/Off Frequency (4)
405
Optical Power Min (1) 300 mW
CW Stability (typ.) (2) < 2%
Max Rise Time (typ.) (3) < 10 µs
Max On/Off Frequency (4) > 1000 Hz
470 or 488
Optical Power Min (1) 1000 mW
CW Stability (typ.) (2) < 2%
Max Rise Time (typ.) (3) < 10 µs
Max On/Off Frequency (4) > 1000 Hz
555 or 577
Optical Power Min (1) 1000 or 700 mW
CW Stability (typ.) (2) < 2%
Max Rise Time (typ.) (3) < 2 ms
Max On/Off Frequency (4) 100 Hz
640
Optical Power Min (1) 400 mW
CW Stability (typ.) (2) < 2%
Max Rise Time (typ.) (3) < 10 µs
Max On/Off Frequency (4) > 1000 Hz
(1) Optical power measured at 100% intensity, 23°C ± 2°C.
(2) Continuous Wave Stability: Standard Deviation relative to mean power, at 100% intensity, 23°C ± 2°C.
(3) Optical power measured at 100% intensity, 23°C ± 2°C.
(4) Measured at 100% intensity, 50% duty cycle
Optical characteristics
Output Power
Up to 1000 mW per line
Optical Stability
Feedback-controlled
< 2% CW stability
Intensity Control
1% steps
100:1 linear dynamic range
Laser Lines
Up to 7 lines : 405 / 445 / 470 or 488
520 / 555 or 577 / 640 / 730 nm
NIR Channel (730 nm)
✔ Deep-tissue imaging
Extended spectral range beyond visible
Beam Quality
Standard multimode output
Fiber Output
400 µm bifurcated
User Alignment
Not required
LDI-4 Series Laser Diode Illuminator General specifications
Output Options
Optical fiber
(400 µm bifurcated, 0.39 NA)
Control Options
TTL (> 2.3 V) | Analog (0–5 V)
USB–DSP (virtual COM port)
Safety
Interlocked housing | Key interlock
IEC 60825 compliant
QUAREP-LiMi WG1
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Dimensions
318 × 234 × 146 mm
(12.5" × 9.2" × 5.75")
Weight
~ 4 kg (~9 lbs)
Operating Temp.
15 to 30 °C
Storage Temp.
-18 to 50 °C
Humidity
< 80% non-condensing
Voltage
90–220 V AC, 50–60 Hz
Warranty
2 years
Applications / Techniques
Spinning Disk Microscopy
Widefield Microscopy
Light Sheet Microscopy
Structured Illumination Microscopy (SIM)
Super Resolution Imaging
TIRF
PALM / STORM / DNA-PAINT
FRAP
Photoactivation / Photoconversion
Photoablation
Optogenetics
Neuroscience / Physiology
Cellular Biology
Single Molecule FISH (smFISH)
Spatial Transcriptomics / Proteomics
Digital Pathology
