Métrologie optique

Micro & Nanopositionnement

Produits de microscopie

English version

LDGI X-cite light sources


The Revolutionary New Light Source for Fluorescence Illumination - The X-Cite exacte microscope light source employs a DC-powered mercury lamp coupled with patented Closed-Loop Feedback technology to provide ultra-stable fluorescence illumination, for imaging protocols lasting from milliseconds to days. With the X-cite Optical power measurement system, light output can also be calibrated in absolute power units (watts), ensuring truly repeatable fluorescence illumination for imaging experiments.

The X-Cite exacte microscope light source has the convenience of pre-aligned, long-life lamps and easy installation combined with innovative functions in the newest generation of mercury arc fluorescence illumination systems.





DC lamp with Closed-Loop Feedback Short and long-term intensity stability
Calibration via optional powermeter Provides output in watts for consistent illumination and empirical repeatability
Adjustable Iris with 1% steps Intensity control limits photobleaching
Internal High Speed Shutter Flexibility in configuring imaging systems for different applications
Liquid Light Guide Excellent illumination uniformity, no heat transferred to microscope
Automatic Light Guide Detection Ensures proper/complete insertion of light guide to optimize performance and lifetime
Pre-aligned, 2000 hour lamp Easy lamp replacement with no alignment required, lower running costs
Intelli-Lamp Technology Maintains optimum lamp temperature; tracks lamp hours
Computer Control & GUI Enables computer-driven applications and stability data exporting



Includes Lamp module, liquid light guide with adaptor, software CD, foot pedal, USB cable, grounded and shielded power cord, user guide, quick-start guide
Lamp 200W Mercury Vapor Short Arc, DC
Lamp Life 2000 hours guaranteed; 2500 hours typical
Adaptors Compatible with microscopes from all major manufacturers
Filter Bandpass, 340-675nm
Power Supply High efficiency, switch mode, line isolated 100-120VAC / 200-240VAC, 50/60Hz
Warm-up Period 4-minutes (typical)
Connectivity RS-232 control via USB port; PC and Mac control of lamp, iris, shutter; ready for integration in automated system
Drivers Base commands same as X-Cite 120PC; Build onto existing driver scripts to control X-Citeexacte .
Panel Controls Power on/off, display mode selection, intensity up/down adjustment, Closed-Loop Feedback on/off, shutter open/close
Panel Display Accumulated lamp hours, intensity setting, status messages
Panel Status Indicators Lamp on, shutter open, display mode, calibration, light guide insertion, Closed-Loop Feedback
Dimensions (LxWxH) 13.5" x 7" x 8" (34cm x 18cm x 20cm)
Weight 10.8lbs (4.9kg)
Certifications CE marked, certified to IEC, Canadian and US Standards
Warranty 1 year (excluding lamp and light guide)
Patents X-Citeexacte incorporates technology protected by the following patents: US# 5,521,392; US# 6,333,602; US# 6,437,861; US# 6,847,170; US# 7,335,901




Additional information



As an authorized European distributor, OPTOPHASE has most LDGI products on stock (including light guide) for immediate delivery. If you would like more information, please contact us.


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