SpectroRadiometers
Instruments for Display Measurement
The StellarNet spectrometers are great tools for low cost, routine analysis of all types of displays and monitors.  The increasing use and popularity of flat panel displays for televisions, computer monitors, laptops, automotive displays, cell phones, and mobile devices of all kinds requires accurate, fast, and cost-effective methods for measuring color, luminance, and various other output parameters. In R&D applications there is a continuing need for low cost and easy-to-use measurement systems that can be applied to all sorts of display sizes, brightness, and technologies — LCD, plasma, OLED and LED. In manufacturing, accurate, repeatable, quantitative measurement methods are needed to replace traditional human inspection techniques. Also, StellarNet's line of low cost spectrometers are small, portable, and robust which allows for a more economical solution to the larger benchtop display measurement alternatives. Likewise, multiple spectrometers can be deployed in production facilities, taken into the field, and transported easily from one location to another increasing the ease of inspection and quality control.

 
BLACK-Comet-CXR Spectrometer- Cd/m² Brightness Measurements of a white Display Monitor with adjusting brightness control from 100% to 10%.


Absolute color measurements of LCD, plasma, OLED and LED displays. CIE chromaticity diagrams provide x,y chromaticity values, dominant wavelength, color purity, tristimulous value, and CCT.

SpectraWiz Software included FREE 
- Candela per square meter (cd/m²) or Nit
- Absolute intensity measurements watts/m²
- µm watts/cm²
- PSD
- Lumens/m² -- LUX
- Moles per second -- PAR
- Footcandles- Lumen/m²
- Radiant Flux (watts) / Luminous Flux (lumens)
- Radiance Watts/sr/m²/nm (380-780nm)
- xy Chromaticity, dominant wavelength, purity
- Correlated color temperature (CCT)
- Set Power Spectral Density (PSD) range


Standard and Extended Ranges
StellarNet also has extended range spectroradiometers available to measure spectral irradiance over a wide range of wavelengths.  The EPP2000-UVN-SR spectroradiometer with CCD detector array covers a range of 200-1100nm.  The BLACK-Comet-SR super range, dual blazed, concave grating spectroradiometer offers a range of 220-1100nm while retaining all of the characteristics of a concave grating spectrometer!!! In addition, StellarNet offers a Dual Channel Spectrometer system for spectroradiometry, the Dual DSR (Detector Super Range) combines a CCD and InGaAs detector to cover a wavelength range of 200-1700nm for selected models.

SpectroRadiometer PDF Download
Why StellarNet SpectroRadiometers?
- Low cost - Ruggedized - high performance
- Concave grating optics for best spectral imaging
- High dynamic range and system flexibility
- Many light collecting accessories and calibration options
- Shock-proof - Permanent alignment
- Easy to use SpectraWiz Software included free
- USB-2 interface to all Windows PCs
- Detector cooling and external triggering available


Cosine Receptor Lens Assembly System (CR2 and CRLENS) attaches to fiber optic cable and allow for absolute calibration in radiance RADCAL-SR Watts/sr/m²/nm.


NIST Calibrations
The factory performs calibrations for the appropriate wavelength range of your spectrometer using NIST traceable calibration lamps (calibration service RAD-CAL-SR must be ordered with spectrometer and proper measurement accessories- fiber optic cable, CR2, and CRLENS)

Fast delivery: most system can be calibrated and shipped within 1 week after receipt of order

Absolute calibration: accuracy within 10% at detector integration setting used for calibration

Certificate available: documentation with NIST traceable serial numbers.

If the user has an appropriate irradiance calibration source lamp, a field re-calibration can be easily performed using the included SpectraWiz software.

Dual DSR Spectroradiometer-
Halogen-lamp spectra (300-1700nm). StellarNet Dual DSR system pictured above uses a Y bifurcated fiber (F600-Y-UVSRNIR) to connect a BLACK-Comet-SR spectrometer and a RED-Wave NIR Spectrometer.  The entire system can be radiometrically calibrated over the range 200-1700nm. Above system pictured with Flash Capture Interface (FCI) that allows spectrometer to capture emission from flashing sources such as flashtubes and pulsed solar simulators.