As the inventors of the first high-performance, computer-controlled LED spectroradiometers, Gamma Scientific has continued to set the standard in spectroradiometer accuracy and reliability.
RadOMA spectroradiometers are trusted by the world’s leading organizations to provide accurate measurements.
The RadOMA-LED spectroradiometer’s exceptional low-light measurement capability and superior blue-light region sensitivity over conventional front-illuminated CCD-based systems further enhances accuracy for determination of LED’s half-power bandwidth, peak wavelength, color temperature, luminance and proper binning.
The system is easily configurable to measure different aspects of LED output. The standard system comes with optics for spectral radiant intensity (and luminous intensity in candelas) following the CIE Publication Number 127 recommendations. It can also be coupled to an integrating sphere for total flux measurements, both 2 pi and 4 pi steradians; or a computer-controlled 2-axis goniometer for spatial intensity measurements.
LED Testing Spectroradiometer Features
- Recommended geometry from CIE Pub. No. 127; Condition A & B
- Exceptional accuracy via high-resolution bandwidth coverage
- Superior wavelength and color accuracy via low thermal expansion coefficient materials
- Near-real-time measurement
- High resolution: 0.4 nm/pixel
- Spectral ranges: 200-780, 260-900 nm, 300-1100 nm, and 380-810 nm
- USB interface
- Windows-based control/analysis software
- NIST-traceable accuracy
- Self-calibrate (System never has to be returned for calibration)
RadOMA Spectroradiometer Specifications
| Detector and Wavelength Specifications | |||
|---|---|---|---|
| Spectrometer | GS-1290-1 | GS-1290-2 | GS-1290-3 | Nominal Spectral Range | 200-800 nm | 300-1100 nm | 360-940 nm |
| Datapoint Interval | 0.6 nm | 0.9 nm | 0.6 nm | Spectral Bandwidth (Built-in User Selectable Half-Power Bandwidth (HPBW). Factory Setting in Bold) |
10 nm 5.0 nm 2.5 nm 1.4 nm 1.0 nm |
20 nm 10 nm 5.0 nm 2.7 nm 1.8 nm |
10 nm 5.0 nm 2.5 nm 1.4 nm 1.0 nm |
| Wavelength Repeatability | 0.02 nm | 0.03 nm | 0.02 nm | Wavelength Accuracy | ± 0.1 nm | ± 0.2 nm | ± 0.1 nm |
| Accuracy | |||
| Luminous Intensity | ± 1% | ± 1% | ± 1% | Luminous Flux | ± 1% | ± 1% | ± 1% |
| Chromaticity (CIE 1931 xy)² | x,y = ± 0.0015 | x,y = ± 0.002 | x,y = ± 0.0015 | Dominant Wavelength | ± 0.5 nm | ± 0.5 nm | ± 0.5 nm |
| Sensitivity | |||
| Luminous Intensity (10:1 signal-to-noise) | 0.002 mcd to 15 kcd | 0.002 mcd to 15 kcd | 0.002 mcd to 15 kcd | Luminous Flux (12″ sphere; 10:1 signal-to-noise) | 0.1 mlm – 250 klm | 0.1 mlm – 250 klm | 0.1 mlm – 250 klm |
| Measuring Time (range) | 5 msec to 300 sec | 5 msec to 300 sec | 5 msec to 300 sec | Measuring Time at 1 mcd (10:1 signal-to-noise) | 40 msec | 40 msec | 40 msec |
| Specifications for All Spectroradiometers | |||
| Stray Light | Less than 1 x 10 ⁻² | Spectral Sensor | Temperature-Stabilized Back-Thinned 1024×128 element CCD Array |
| Electrical Resolution | 16 bit | Dynamic Range (single scan) | 64,000:1 |
| Computer Interface | USB 2.0 | Control Software | Lightouch LED software for Windows |
| Dimensions | 5.25″ H x 17.25″ W x 16.25″ L 13.34 cm H x 43.8 cm W x 41.28 cm L |
Weight | 30 lbs (13.6 kg) |
Spectroradiometer Resources
- Seven Factors Affecting Spectroradiometer Accuracy and Performance
- Gamma Scientific RadOMA Spectroradiometer Overview
- RadOMA Lite LED Spectrometer
- Display Measurement Spectroradiometer
- RadOMA NVIS Spectroradiometer for Night Vision Testing
- Bi-Spectral Fluorescence Spectroradiometer for LED Phosphor Testing
- Gamma Scientific Goniospectroradiometer for Display Measurement
