The ILT 970 from International Light Technologies is a family of versatile, research-grade spectroradiometers, available with a range of application-specific input optics that provide for measurements of spectral irradiance, radiance or radiant flux. Being a spectroradiometer ensures that the ILT 970 gives accurate readings with any type of light source. Measure spectral irradiance (Watts/m2.nm), spectral radiant flux (Watts/nm), spectral radiance (Watts/sr.m2.nm), the illuminance (lux), the luminous flux (lumens), the luminance (cd/m2), the correlated colour temperature of white light sources (CCT, Kelvin), the CIE chromaticity (xy or u’v’), the dominant wavelength of coloured light sources (nm) and the CIE colour rendering index, CRI (Ra, R1-15).
The ILT 970 Family
The ILT 970 family comprises four models, three of which employ a silicon CMOS sensor for measurements in the 200-1050nm band (depending on model chosen), while the fourth uses an InGaAs array detector for NIR measurements from 900-1700nm.
The ILT 970-NIR can be combined with a second ILT 970 model to expand the range to include UV-VIS-NIR spectral measurements.
All models come as standard with ILT’s SpectrILight III software, a 1 meter long optical fiber patchcord, a choice of input optic (right angle diffuser on the NIR model), tripod, hard storage case and NIST-traceable, ISO/IEC 17025:2017 accredited calibration with certification and data files.
Configure your ILT 970 for your application
The ILT 970 spectroradiometer comes standard with an SMA905 fibre optic receptor, allowing it to be used with a variety of fibre optic patch cords, including both flexible and rigid models. The available input optics include:
Each input optic requires its own unique calibration. Multiple calibrations can be performed on a single spectrometer, allowing measurements of total flux, irradiance, radiance, luminance, and illuminance with the appropriate input optic as noted above.
Wide Spectral Coverage: Models available for UV (200–450 nm), VIS-NIR (380–1000 nm), and NIR (900–1650 nm).
High Measurement Versatility: Measures irradiance, radiance, luminous flux, illuminance, luminance, CCT, CRI, and chromaticity.
Modular Input Optics: Compatible with diffusers, radiance optics, and integrating spheres.
Extendable Range: Combine models to cover full UV-VIS-NIR spectrum.
Accredited Calibration: NIST-traceable, ISO/IEC 17025:2017 certified calibration included.
Complete System Included: Supplied with software, fiber patch cord, input optic, tripod, and case.
Flexible Configuration: SMA905 connector supports various fiber optics and accessories.
Research-Grade Accuracy: High precision with CMOS or InGaAs detectors, depending on model.
Application-Specific Options: Choose optics and calibration to suit your specific measurement needs.
Powerful Software: SpectrILight III for intuitive control, data export, and advanced analysis.
Model | ILT 970 UV | ILT 970 VIS | ILT 970 BB | ILT 970 NIR |
Detector | CMOS Linear Sensor | CMOS Linear Sensor | CMOS Linear Sensor | InGaAs 256 Element |
Focal Length | 60mm | 60mm | 60mm | 60mm |
Wavelength Range | 180 – 500nm | 180 – 850nm | 180 – 1100nm | 900 – 1700nm |
Slit | 50µm | 25µm | 25µm | 50µm |
Resolution | £ 9nm | £ 1.2nm | £ 2.3nm | £ 7nm |
Optical Design | Symmetrical Czerny-Turner | Symmetrical Czerny-Tuner | Symmetrical Czerny-Tuner | Symmetrical Czerny-Tuner |
SNR | 330:1 | 330:1 | 330:1 | |
Dynamic Range | 3450 | 3450 | 3450 | |
Integration Time | 0.2ms – 1 min | 0.2ms – 1 min | 0.2ms – 1 min | 0.1ms – 15 sec |
Stray Light | <.2% | <.2% | <.2% | <.2% |
Wavelength Accuracy | +/- 0.21 nm | +/- 0.3 nm | +/- 0.6 nm | +/- 0.6 nm |
Dynamic Dark Correction | Yes | Yes | Yes | |
Non-Linearity Calibration | Yes | Yes | Yes | |
Wavelength Calibration | Yes | Yes | Yes | |
Trigger Compatible | Yes | Yes | Yes | |
Synchronisation Compatible | Yes | Yes | Yes | |
ADC | 16 bits, 2.5 MHz | 16 bits, 2.5 MHz | 16 bits, 2.5 MHz | 16 bits, 15 MHz |
Operating Temp | 0-50°C | 0-50°C | 0-50°C | 0-50°C |
Interface | USB 2.0 UART | USB 2.0 UART | USB 2.0 UART | USB 2.0 UART |
Calibration | NIST Traceable/ ISO17025 Accredited | NIST Traceable/ ISO17025 Accredited | NIST Traceable/ ISO17025 Accredited | NIST Traceable/ ISO17025 Accredited |
Dimensions (mm) H x W x L | 35.4 x 86 x 110 | 35.4 x 86 x 110 | 35.4 x 86 x 110 | 32 x 86 x 110 |
Power | 300mA @ 5VDC (supply voltage 4.75-5.25) | 300mA @ 5VDC (supply voltage 4.75-5.25) | 300mA @ 5VDC (supply voltage 4.75-5.25) | 300mA @ 5VDC (supply voltage 4.75-5.25) |
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