RadOMA LED Testing Spectroradiometer

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, 200-1100 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 200-1100 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 10-4
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