Spectrometer and spectroradiometer

Spectroradiometer spr'3

The spr'3 spectral measurement system is used for simple and precise measurement of absolute spectral emission from the UV to the NIR range. The compact portable device integrates high-quality spectrometer and photometer components in the smallest installation space (approx. 250 - 1050 nm).

Its field of application is the measurement of light sources, luminaires and optical systems in the wavelength range of 200-1100 nm. The measurement of the absolute spectral emission also offers a very high accuracy for the measurement of narrow-band light sources, e.g. LEDs. An integrated filter wheel, which can be equipped with filters of any choice, allows the measuring range to be extended or pre-filtering of the radiation to be carried out. Spectrometer and absolute sensor technology form a compact unit. The simple data connection to any computer or laptop is ensured via a USB interface. Operation directly in the LAN is also possible.

All calibration information is located on the sensor head. Thus, the system can be operated with different PCs. The robust system works without external optical fibres and can be used in a rough environment, also because of the stable full metal housing. The control and evaluation software has been newly developed and offers a wide range of evaluation options.

The spr'3 units are delivered fully calibrated. opsira offers recalibration and test equipment monitoring as a service.


Measuring quantities

Spectral power distributionS(λ)(W·m-2·nm-1)
Irradiance*1ER(W-m-2)
IlluminanceEV(Lux), (lm·m-2)
Chromaticity coordinates
(CIE 2° and
CIE 10° observer)
X,Y,Z
x,y
u,v
u’, v’
L*a*b*
Lab99
acc. to CIE1931
acc. to CIE1931
acc. to CIE1960
acc. to CIE1964
acc. to CIE1976
acc. to DIN6176:2001-3
Color temperature (CCT)T,Tn(K)
Color rendering indicesCIE 13.3:1995, Ra, R1 to R15 and IES TM30-15, Rf and Rg 
Color saturationS(%)
Hue angleh(°)
Dominant wavelengthλd(nm)
Peak wavelengthλp(nm)

*1 Integration into any intervals possible.

Specifications

Wavelength band350 nm – 830 nm typical / any ranges from 180 nm to 2500 nm possible
Filterwheel with up to 5 filters optional
Number of pixelsapprox. 2048
AD wandler16 Bit / 1 MHz (spectrometer), 16 Bit (radiometer)
Wavelength resolution0,03 nm to 10 nm FWHM
Measuring dynamics2·108 (spectrometer system), 1300:1 (single measurement)
1·108, 100 mLux ≤ Ev ≤ 1 MLux (photometer system)
Linearity>99,92% (spektrometer), >99,7% (radiometer)
Scatter light0.05%@600 nm / 0.10%@435 nm (spectrometer)
Integration times1 ms to 65 s
Spectral adjustment*2insignificant due to spectral correction

*2 with respect to standard light A, with photometer configuration, f1 < 4 %, photometer without correction.

Changes possible depending on system configuration. Due to the constant improvement and further development of our measuring systems, deviations from the technical specifications may occur. Any liability arising from such changes or printing errors is expressly excluded.



Model

Wavelength band

Measuring range

Model: spr'3-v
Wavelength band: VIS
Measuring range: 350 - 830
spr'3-r
UV-VIS-NIR
250 - 1050
Model: spr'3-i
Wavelength band: NIR
Measuring range: 800 - 1050
Model: spr'3-u
Wavelength band: UV
Measuring range: 250 - 400
Model: spr'3-uv
Wavelength band: UV-VIS
Measuring range: 250 - 830
Model: spr'3-vi
Wavelength band: VIS-NIR
Measuring range: 350 - 1050
Model: spr'3-m
Wavelength band: UV
Measuring range: 200 - 400

Accessory

spec'3

Convenient measurement of spectral distributions

The spec'3 spectral measurement system enables the fast measurement of spectral distributions from UV to NIR. Due to the corresponding weighting functions, the direct output of parameters such as MED, the blue light hazard or many other weightings is possible in a simple and user-definable way. In the visible spectral range, the colorimetric values according to CIE are generated directly. This can be done continuously in live mode, which makes it easy to observe changes over time or also provides useful support for adjustment tasks. Color tolerance ranges can be defined in the evaluation software to perform a quick test against test specifications. The color rendering values according to CIE are permanently updated in live mode.

The color rendering diagram gives a quick and easy overview of all values from R1 to R15. Here, the color distance ΔC to the Planckian plane as well as the corresponding reference color temperature are generated in order to be able to evaluate the measured values in a meaningful way. The automatic adjustment of the integration time as well as the integrated automatic shutter for dark correction always keep the system at the optimal operating point and ensure that the digitisation depth is always fully utilised.

The configuration with the spec'3 spectrometer is included in the goniophotometer robogonio product line top line.

Measuring quantities

Spectral distributionS(λ)
(W·m-2·nm-1)
Color coordinatesx, y / u’, v’ / L*a*b* 
Color temperatureT, Tn(K)
Color rendering indicesCIE 13.3:1995, Ra, R1 to R15 and IES TM30-15, Rf and Rg 
Color saturationS(%)
Hue angle(°)
Dominant wavelengthλd(nm)
Transsmission valueT(λ) (specular, diffuse)(%)
Reflection valueR(λ) (specular, diffuse)(%)

 

Specifications

Wavelength bandany ranges from 180 nm to 2500 nm possible
Number of pixels of the detectorapprox. 2048
AD wandler16 Bit / 1 MHz
Wavelength resolution0.03 nm to 10 nm FWHM
Measuring dynamics2 x 108 (system), 1300:1 (single measurement)
Linearity>99,8%
Scatter light suppression0.05%@600 nm / 0.10%@435 nm
Integration times1 ms to 65 s


opsira spectral measurement systems spec'3 are available in various types

Model

Wavelength band

Measuring range

Model: spec'3-v
Wavelength band: VIS
Measuring range: 350 - 830
Model: spec'3-r
Wavelength band: UV-VIS-NIR
Measuring range: 250 - 1050
Model: spec'3-i
Wavelength band: NIR
Measuring range: 800 - 1050
Model: spec'3-u
Wavelength band: UV
Measuring range: 250 - 400
Model: spec'3-ua
Wavelength band: UVA
Measuring range: 315 - 400
Model: spec'3-ub
Wavelength band: UVB
Measuring range: 280 - 315
Model: spec'3-uv
Wavelength band: UV-VIS
Measuring range: 250 - 830
Model: spec'3-vi
Wavelength band: VIS-NIR
Measuring range: 350 - 1050

Accessory

  • Reflection standard
  • Integrating spheres
  • Shutter
  • Diffusors (COS - weighting)
  • Various measurement fibres
  • Light sources
  • Absolute detector heads
  • Software Plug-in MED
  • Software Add-on spec'remote
  • USB2LAN Ethernet interface

Please contact
General Manager
Jürgen P. Weißhaar:
Phone +49 751 561890
info@opsira.de