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Spectroradiometric Accessories

Spectroradiometer: An instrument for measurement of radiometric quantities in narrow wavelength intervals over a given spectral region (e.g. irradiance, radiance, etc.) (CIE)

The optical quantity measured by a spectroradiometer system is determined by the input optic employed, as described in the table below. An approriate calibration source is required in each case. Bentham manufactures spectroradiometers covering the spectral range 150nm to 30000nm. All photometric, colorimetric, UV radiometric etc. quantities are most accurately determined by performing spectroradiometric measurements and using software to integrate/weight values as defined by CIE etc. However, Bentham also supplies a range of filter based radiometers/photometers with close match spectral responses for simple integral type measurements.

Typically a light source and UMS, universal measurement station, is added to spectroradiometer type systems in order to perform spectrophotometric measurements such as transmission and reflectance.

Typical Input Optic Measurement Quantity Unit Photometric Parameter Photometric Unit
Diffuser Spectral irradiance mW/(m2.nm) Illuminance lux
Telescope Spectral radiance mW/(sr.m2.nm) Luminance cd/m2
Baffled Tube Spectral radiant intensity mW/(sr.nm) Luminous intensity cd
Integrating Sphere Spectral total radiant flux mW/nm Total luminous flux lumens

Benwin plus software
D6/D7
Cosine diffusers

Benwin plus software
IS3/4-ODM
Integrating Spheres

Benwin plus software
TEL301
Telescope

Benwin plus software
TEL309
Telescope


FOP/FOP(UV)
Fibre Optic Bundles


IS6-LED
LED Flux Sphere

Direct Solar Accessory
DSA
Direct solar Accessory

Rotating Shadow Band
RSB
Rotating Shadow Band

IS1000 sphere
IS1000
1000mm Integrating Sphere

IS1800 sphere
IS1800
1800mm Integrating Sphere

418 optical chopper
418
Optical Chopper

 

 

 

 

 

 

 

 

BenWin+ software
BenWin+
Spectroradiometric/
Spectrophotometric Software