SRS8 Halogen Spectral Radiance Standard (250-2500nm)

  • SRS8 eight inch sphere spectral radiance standard

Calibrated in our dedicated laboratory with respect to standards calibrated by the Physicalish Technische Bundesanstalt (PTB, Germany), a range of calibration intervals within 250-2500nm is on offer.

The 200mm diameter SRS8 features a BaSO4 coated integrating sphere complete with baffled, grit-blasted 50W QTH lamp and 50mm diameter window to deliver exceptional radiance uniformity. Stable lamp operation is ensured in operating the lamp with the 610 precision constant current DC power supply.  A calibration to obtain CIE / illuminant A operation (2856K) can be provided for the calibration of luminance meters.

Core benefits

Features

  • Integrating sphere based uniform standard of spectral radiance (mW-1.sr-1.m-2.nm-1)
  • Spectral radiance calibration range 250-2500nm
  • 50mm diameter window
  • Fitted with 50W QTH lamp
  • Designed for optimal performance when powered by the 610 contact current power supply
  • Calibration performed with respect to the Physicalish Technische Bundesanstalt (PTB, Germany) 

Electro-Optical

Lamp type

Grit-blasted quartz halogen lamp, G6.35 base

Nominal lamp power and voltage

50W, 12V

Operating current

4.000A

Expected lifetime

2000 hours

Sphere coating

BaSO4

Window diameter

50mm

Peak spectral radiance (typ.)

475 mW. sr-1m-2.nm-1 at 750nm

Luminance (typ.)

24000 cd.m-2

Correlated colour temperature (typ.)

3400K

Chromaticity coordinates, CIE 1931 & 1976

x = 0.4148, y = 0.4006, u' = 0.2378, v' = 0.5167

Calibration

Measurement type

Spectral radiance over a circular central area of diameter 10mm

Wavelength range

250-2500nm

Wavelength Interval

5nm

Traceability

Physicalish Technische Bundesanstalt (PTB, Germany)

Calibration frequency

Recommended after 100 hours burn-time

Mechanical

Connector

4mm socket

Dimensions

92L x 45W x 77H (mm)

Calibration

CALIBRATION-SRS-250-300

Spectral radiance calibration 250-300nm

CALIBRATION-SRS-300-800

Spectral radiance calibration 300-800nm

CALIBRATION-SRS-800-1800

Spectral radiance calibration 800-1800nm

CALIBRATION-SRS-800-2500

Spectral radiance calibration 800-2500nm

CALIBRATION-SRS-ND-300-1100

Spectral radiance calibration 380-1100nm with and without ND filter

CALIBRATION-SRS-COLOR-TEMP

SRS8 operating current modified to obtain 2856K operation (CIE illuminant A)

Ordering Information

CAL_SRS8

SRS8 Halogen spectral radiance standard

CALIBRATION-SRS-250-300

Spectral radiance calibration 250-300nm

CALIBRATION-SRS-300-800

Spectral radiance calibration 300-800nm

CALIBRATION-SRS-800-1800

Spectral radiance calibration 800-1800nm

CALIBRATION-SRS-800-2500

Spectral radiance calibration 800-2500nm

CALIBRATION-SRS-ND-300-1100

Spectral radiance calibration 380-1100nm with and without ND filter

CALIBRATION-SRS-COLOR-TEMP

SRS8 operating current modified to obtain 2856K operation (CIE illuminant A)

PSU_610

Current stabilised lamp power supply

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