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.
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The International Conference on Circular Dichroism has been given a new name as it incorporates the emerging techniques of Chiroptical Spectroscopy such as vibrational CD, Raman Optical Activity and associated applications into the field.
Elliot Scientific will be joined by innovative illumination company Energetiq at the exhibition to demonstrate the EQ-99 laser-driven plasma-based light source that’s been specifically designed for spectroscopic and microscopy applications. The revolutionary technology used in this lamp, called LDLS™, enables 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 bulbs.