For the ultimate in resolution and accuracy,  the SpectralLED® 940-SWIR source incorporates 16 discrete LED devices, all with a center wavelength of 940 nm. The output is directly coupled into a 38mm diameter  homogenizing rod, with a length of 190 mm, having a diffuser optically bonded to the output surface. 

The platform is easily adaptable for automated test systems and production line integration, with integrated optical feedback and temperature control to ensure rock-solid stability and consistent results.


  • Camera and image sensor calibration
  • Facial recognition system test & calibration
  • Spectrum / illuminant simulation
  • Diagnostic imaging

Unprecedented Resolution and Accuracy for Facial Recognition System Test & Calibration

  • Constant current drivers & built-in optical feedback
  • Accurate & flicker-free output in real-time
  • All solid-state design for rapid start-up, repeatable performance
  • ISO/IEC 17025 accredited by NVLAP (NVLAP lab code 200823-0) for calibration accuracy
Please contact us with your custom & OEM requirements.

RS-7-940  Optical Specifications

Spectral Range

940 ±  10 nm     (Custom ranges available on request)

Spectral Output

16 discrete LED channels

Spectral Bandwidth

Typical 50nm FWHM

Source Geometry

38mm diameter  homogenizing rod, with a length of 190 mm, having a diffuser optically bonded to the output surface. 

Spatial Uniformity

≥ 97%


Irradiance (µW / cm2) at the plane of the diffuser output surface

  Accuracy Specifications

Illumination Stability

≥ 99.99% after 50 ms

Illumination Accuracy

± 1% Absolute, NIST traceable

Spectral Accuracy

± 1 nm centroid wavelength


< 0.1 % RMS of full scale

Temperature Stability

Within ± 1° C via active TEC

Long-term Drift

Output ≤ 2%       Spectral ≤ 1 nm      (typical, channel dependent)

  Electrical Specifications

Electrical Resolution

16 bit DAC for channel current drivers      

24 bit ADC for internal radiance monitor feedback

Dynamic Range Adjustment

4-5 decades typical     (spectrum dependent)

LED Control

Pure DC constant current with floating differential sensing

  General Specifications


Firmware includes full spectral calibration with spectral fitting, preset storage, real-time optical feedback, radiometric units supported

Interface Connectors

USB 2.0 type B and DB-9

Interface Protocol

Simple ASCII commands with optional binary block transfer

Supported Operating Systems

USB drivers for Windows, OSX and Linux via FTDI virtual COM port

Legacy RS-232 serial port for integration (no OS required)

Input Voltage & Power

100 to 240 VAC at 50-60Hz, 600W maximum

Dimensions (H x W x L)

405mm (16 in) x 460mm (18.1in) x (305mm (12in).  Weight 17.5 kg (38.6 lbs)


RS-7 Wavemon™ Upgrade

Multi-channel photodiode system w / amplitude feedback & real-time ƛ measurements

RS-7 WavemonTM   Multi-channel photodiode system with amplitude feedback and real-time wavelength measurement

The Wavelength Monitor System is a multi-channel photodiode system which provides amplitude feedback and real-time wavelength measurements. It consists of three photodiodes each with an independent transimpedance amplifier circuit. Proprietary optical filtering techniques allows for wavelength accuracy of +/-0.25nm and repeatability of +/-0.05nm. The Wavelength Monitor PCBA, photodiodes, and optical filter assembly is temperature stabilized using a Peltier cooler and thermistor in a PID feedback loop. This assembly is a discrete module which can be used with any RS-7 model.

Please contact us with your custom & OEM requirements