The new SpectralLED™ tunable light source from Gamma Scientific combines the output of 30 discrete LEDs – each having a different centre wavelength – to produce output that can be programmed to closely match virtually any illuminant source or the spectrum of any illuminant reflected by a target.
SpectralLED™ can sweep through wavelengths to simulate a scanning monochromator, but with the advantage of no moving parts. In addition to superior spectral resolution and accuracy, the SpectralLED™ also offers about 10x higher brightness than any competitive product. This allows measurements over a much larger, linear dynamic range, and is sufficient to illuminate virtually any detector at levels up to saturation.
A combination of DC constant current drivers, optical feedback, and thermoelectric cooling maintains the source’s high luminance accuracy in real time, allowing brightness to be varied directly (through drive current), rather than by pulse width modulation (PWM). This eliminates any flicker.
The SpectralLED™ will allow sensor, camera and system manufacturers to perform a wide variety of calibration and testing functions with a single instrument. Applications include smartphones and tablets, DSLR cameras, cinematography camcorders, diagnostic medical imaging, technical and industrial photography, or any OEM camera, sensor or detector application. White balance, spatial uniformity, defects, linearity, dynamic range, signal-to-noise, responsivity and ISO speed are specific tests the SpectralLED™ is ideally suited for carrying out.
For more information, please contact us.
EXFO has launched the TKS-CAL Optical Calibration Kit to provide in-house instrument verification, putting users in control of all their calibration operations. The system enables manual calibration of power meters as well as verification of light sources, attenuators and OTDRs without causing any downtime and costly shipping. Flexible and modular, it is designed to evolve as needs change. For more information, please contact us.
Traditional calibration sources for radiometric calibration, such as Deuterium, Quartz Tungsten Halogen, and Xenon-arc, all have limitations in spectral range. No single source covers the full UV-Visible range from 200 to 800 nm with output at comparable levels across that spectrum. In addition, traditional sources require recalibration after 100 hours or less of use and lamp replacement typically after 500 hours.
With its revolutionary Laser-Driven Light Source™ (LDLS), Energetiq offers a calibration solution that addresses these limitations and provides a single, broadband, high brightness source for radiometric calibration. The EQ-99CAL combines radiometric performance with long life, longer recalibration intervals, and low cost of ownership. Certification is from the UK’s respected National Physical Laboratory (NPL).
The Energetiq® LDLS™ uses a laser activated plasma to generate light without electrodes to enable extreme high brightness over a broad spectral range, from 170 nm through to visible and beyond, combined with lifetimes an order of magnitude longer than traditional lamps.
For more information about this new and exciting light source, contact us now.