Calibration Light Source

  • Product No:RS-10D
  • Manufacturer:Gamma Scientific

The RS-10D calibration light source is a precision source of radiant flux, used primarily to calibrate light-measuring instrumentation and as stimuli to measure detection devices.

Conservative design and rigid quality standards make Gamma Scientific sources the ones by which others are judged. They may be used as standards of irradiance or radiance, traceable to the National Institute of Standards Technology (NIST).

Near-constant radiant flux output is achieved via exclusive use of tungsten-halogen lamps. Ultra-stable, constant-current supplies utilize precision shunt-current measurement and comparison circuits built into the source housing.

With RS-70-X accessories, the RS-10D light source provides an absolute reference for producing standard outputs in a complete range of luminance, illuminance, spectral-radiance and spectral-irradiance units. Additional special filters and attenuators enable generation of different color temperatures, spectral outputs and intensities. Calibrations in photometric and/or spectroradiometric units are supplied and are traceable to NIST.


  • NIST-traceable

  • 200-hour calibration/l year with built-in timer showing elapsed time

  • Calibrates spectroradiometers, radiometers, photometers and detector responsivity

  • Measures reflectance and transmittance

  • Tungsten halogen lamps for stable output

  • Calibration reports in units of luminance, radiance, illuminance and irradiance



Calibrated Wavelength Range @ Data Interval

300-1100nm@5nm

Calibration Interval

200   hr or 1 year

Output, Nominal Irradiance at 25 cm

W/cm2·   nm

8.0   x 10-9at   300 nm; 

7.5   x 10-7at   550 nm; 

2.0   x 10-6at 800   nm; 

2.2   x 10-6at   1100 nm

Output, Nominal Illuminance at 25 cm

592   Im/m2

 (LUX);   55 Im/ft2(fc)

Nominal Radiance with RS-70-2 Diffuser

W/cm2   · sr · nm

6.2   x 10-9 at   300 nm; 

1.0   x 10-6 at   550 nm;

9.0   x 10-6 at 800   nm; 

6.5   x 10-5at   1100 nm

Nominal Luminance with RS-70-2 Diffuser

850   cd/m2(250   fL)

Correlated Color Temp.

2856   ± 20K   Reported to ± 7K

Correlated Color Temp. with RS-70-2 Diffuser

2575   ± 50K   Reported to ± 7K

Uniformity of Diffuser

± 3%   over 25 mm

NIST Standards of Irradiance Output Uncer-tainty

± 2.5%

Uniformity of Exit Port

± 0.75%

Uniformity of Irradiance Plane Normal to Exit Port  

± 2%   over 50 mm

diameter   at 25 cm

Regulator Type

Constant   Current

Output Current

4A   Maximum

Current Accuracy, Long Term

Better   than .05%

Settability

Better   than .02%

Temperature Drift

Less   than ± .25% / 10°C

Temperature Range

15°C   to 35°C

Humidity

10%   - 85% non-condensing

Regulation

Less   than ± .02% change for10 Volt line change

Thermal drift After 8 Minute Warmup

Less   than .01%

Current Ramp On/Off Time

Approximately   30 seconds

Power

30   Watts Maximum

Line Voltage

100-240VAC,   50-60Hz