Tunable LED Uniform Light Sources: SpectralLED™

Don’t get bogged down with the complexity of other light sources.

Gamma Scientific’s line of SpectralLED Tunable Uniform Light Sources make previous light source technologies obsolete.

Offering easy spectral simulation capabilities, a high number of unique LED channels, and blindingly bright output power, nothing else on the market compares to the SpectralLED.

And just because it’s easy to use doesn’t mean you have to sacrifice performance or accuracy. Gamma Scientific’s proprietary spectral calibration techniques and powerful spectral fitting engine allow for unsurpassed precision and repeatability in the output spectrum, all seamlessly integrated into the unit firmware.

Make Light Work For You

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Industry Applications
  • Camera and Image Sensor Calibration (CCD, CMOS, etc.)
  • Ambient Light Sensor Calibration
  • Detector Responsivity
  • OEM Camera Manufacturing
  • Spectrum/Illuminant Simulation
  • Diagnostic Medical Imaging
  • Technical and Industrial Photography
Measurement Applications
  • White Balance
  • Quantum Efficiency
  • Spatial Non-Uniformity
  • Pixel Defects
  • Cross Talk
  • Vignetting Correction
  • Sensitivity
  • Signal-to-Noise
  • Linearity
  • ISO Speed
  • Saturation Exposure
  • Dynamic Range

Features

  • Unprecedented Resolution and Accuracy – 32 Discrete LED Wavelengths Covering the Visible and NIR
  • Powerful Synthesis Engine – Quickly Simulate any CIE Illuminant or Macbeth™ / X-RITE™ Color Patch
  • Flexible Interface – Built-in RMS Spectral Fitting for Simulation of Any User Imported Spectra
  • Uniform 75mm Radiance Output Port or Optional Baffle Tube for Irradiance
  • Easily Adaptable – for Automated Test Systems and Production Line Integration
  • Pure DC Constant Current Drivers and Built-in Optical Feedback Photodiode System – Ensure Accurate Output in Real Time
  • On-board Thermal Electric Cooler and Feedback – for LED Temperature Control
  • ISO/IEC 17025 NVLAP Calibration Laboratory (Lab Code 200823-0) – Ensures Superior Wavelength and Color Accuracy

Unprecedented Resolution and Accuracy for Camera and Image Sensor Calibration

Light sources are only as accurate as the calibration. As a world leader in high performance spectroradiometers, and with an in-house ISO/IEC 17025 NVLAP Accredited Calibration Laboratory (Lab Code 200823-0), you can trust the NIST calibration that comes programmed into every SpectralLED™ source.

Replace multiple instruments with a single device. With a fully spectrally tunable output spectrum, all you need is one SpectralLED to generate any arbitrary spectral power distribution. Whether it be blackbody, daylight, fluorescent, LED, or something completely unique, the SpectralLED can give you an accurate match.

Replace monochromators with a solid stage design. By sweeping through individual LED channels, the SpectralLED can emulate a traditional monochromator light source. With no moving parts and no halogen input illumination, the solid state SpectralLED is the clear choice for demanding applications.

Unlimited possibilities for limitless spectra. With independent 16-bit control on 35 LED channels, there are virtually infinite possibilities for what the SpectralLED can do for you. Compared with other “next-gen” LED light sources, the SpectralLED offers more channels, brighter output, higher accuracy, and more powerful features for simulation. No external software is required, the SpectralLED firmware controls RMS fitting, calibration storage, and presets. Direct integrating into production lines or test systems is easy with universally compatible USB and RS-232 interfaces.

Gamma Scientific SpectralLED light sources feature a proprietary electrical design for superior accuracy and reliability. The completely redesigned drive electronics provide a pure DC constant current LED drive with floating differential sensing. This means there is no flicker and no uncertainty in the drive current. Couple that with built-in optical feedback, and the SpectralLED is able to accurately control optical output power to within a fraction of a percent. On-board thermal control maintains the LED substrate temperature to ensure spectrum is stable even at high drive currents.

Measurement Applications

  • White Balance
  • Quantum Efficiency
  • Spatial Non-Uniformity
  • Pixel Defects
  • Cross Talk
  • Vignetting Correction
  • Sensitivity
  • Responsivity
  • Signal-to-Noise
  • Linearity
  • ISO Speed
  • Saturation Exposure
  • Dynamic Range

SpectralLED™ Illuminant A (Blackbody) Simulation using RMS Spectrum Fitting. Target (Blue) Output (Red)

SpectralLED™ Illuminant D65 (Daylight 6500K) Simulation using RMS Spectrum Fitting. Target (Blue) Output (Red)

SpectralLED RS-7-1

Standard configuration with 75mm output port, built-in integrating sphere, 35 unique channels, and unlimited spectral possibilities.

SpectralLED RS-7-2

For applications requiring a larger uniform output, this model offers 1-meter integrating sphere with an ultra uniform 300mm output port.

SpectralLED RS-7-3

For applications with tight mechanical space constraints, a fiber optic version is available. This system is custom configured for each customer’s application.

SpectralLED RS-7-4

Illuminator solution for wafer level testing of CCD and CMOS sensors.  Turnkey drop-in addition to commercially available systems.

Data Sheet (PDF)

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