RS-7-2 Large Output Port

When you require a large area (up to 600mm in diameter), highly uniform light source for  camera and image sensor calibration, the SpectralLED®  Large Output Port delivers brightness, radiometric stability  and  wavelength accuracy that is unmatched in the industry. The SpectralLED® Tunable Light Source incorporates up to  35 discrete wavelengths for synthesis of commercially  available light sources or based on spectra that you import.  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.



  • Large Area Camera and Image Sensor Calibration
  • Large Area Photodiode Detector Responsivity Characterization
  • Spectrum / Illuminant Simulation
  • Diagnostic Medical Imaging
  • Technical and Industrial Photography


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Unprecedented Resolution & Accuracy

  • Wavelength Options From the UVA to the Near Infrared
  • Quickly Simulate any CIE Illuminant or Macbeth™ / X-  RITE™ Color Patch
  • Built-in RMS Spectral Fitting for Simulation of User  Imported Spectra
  • Constant Current Drivers & Built-in Optical Feedback  Ensure Accurate & Flicker-free Output in Real Time
  • All Solid-State Design for Rapid Start-up, Repeatable  Performance and Long Operating Lifetime
  • ISO/IEC 17025 Accredited by NVLAP (NVLAP lab code 200823-0) for Calibration Accuracy


Please contact us with your custom & OEM requirements.

  RS-7-2 Specifications


 Source Geometry

 150mm, 300mm or 600mm diameter uniform output, Lambertian radiant source  (Other output port sizes available on request)

 Spatial Uniformity

 ≥ 99%


 Optical Geometry

 Integrating sphere with 500mm, 1,000mm or 1,500mm diameter  (Other sphere sizes available on request)

 Radiance Range

 Dependent upon integrating sphere size and number of light engines attached. Please consult with factory for  configuration parameters and output specifications.

 Luminance Range

   Optical Specifications

Spectral Range

 380 nm to 1,000 nm  (Custom ranges available on request)


 Spectral Output

 32 discrete LED channels, 3 broadband LED Channels

 Visible resolution ~ 15 nm, NIR resolution ~ 50 nm (typical channel spacing)



 Spectral Peaks

 395nm, 405nm, 420nm, 430nm, 450nm, 460nm, 475nm, 495nm, 505nm, 520nm, 525nm, 535nm, 570nm,  595nm, 610nm,  620nm, 630nm, 637nm, 660nm, 675nm, 685nm, 700nm, 715nm, 730nm, 750nm, 760nm,  780nm, 805nm, 850nm, 895nm, 940nm, 965nm

2,700K Warm White, 3,000K Warm White, 6,500K Cool White  (Custom configurations available)

 Spectral Bandwidth

 Typical: Visible 20nm FWHM, NIR 50nm FWHM

 CCT Range

 1,900K to 40,000K

 Preset Spectra

 CIE Illuminants A, B, C, D50, D55, D65, D75, E, F1-F12, MacbethTM / X-RiteTM Color Patches

 Custom Preset Spectra

 Configurable at time of order via API. Contact factory for details

   Accuracy Specifications

 Illumination Stability

 ≥ 99.99% after 50 ms for radiance or after 2,000 ms for color

 Illumination Accuracy

 ± 1% Absolute, NIST traceable

 Spectral Accuracy

 ± 1 nm centroid wavelength

 Color Accuracy

 CIE 1931 x, y ± 0.003


 < 0.1 % RMS of full scale

 Temperature Stability

 Within ± 1° C via active TEC

 Long-term Drift

 Output ≤ 2%  Spectral ≤ 1 nm  (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 and  photometric 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 and Power

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

 Light Engine Dimensions

 Dependent on integrating sphere chosen – please contact factory for details


 RS-7 Wavemon™

 Multi-channel photodiode system provides amplitude feedback & real-time wavelength measurements

 Specifications are subject to change without notice.


Configuration Options

Sphere Diameter Max Exit Port Diameter Number of SpectralLED®
 0.5 meters  150 mm  1
 1.0 meters  300 mm  1 to 4
2.0 meters  600 mm  2 to 8


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.

PDF iconRS-7 Wavemon Option


Please contact us with your custom & OEM requirements.