Visible and Near-Infrared Irradiance Detectors

The RW-37 series irradiance detectors are compact 37mm diameter detectors with wavelength selective spectral responsivities within the visible to near infrared spectrum. Several models with different spectral responses are available. All detectors are supplied with a diffuser window and shadow ring for cosine response field of view.

The detectors are supplied with a 2m long coaxial cable with selectable -1, -2 or -4 type connector for use with Gigahertz-Optik's range of optometers. Internationally traceable calibration & certification of UV irradiance in Wm and W/cm within the specified spectral sensitivity range is provided.

RW-37 Light Detector RW-37-Series
RW-37 Series Detectors   SRT Luminance/Radiance Attachments for RW-37 Series Detectors

Visible & Near-Infrared Irradiance Detectors

Model 

Spectral Function 

Wavelength Range

Input Optic Diameter

F.O.V.
 or Active Area

 

Units of
Measurement

Housing
Dimensions

Typical Sensitivity

nm

mm

Diameter

Length
mm

RW-3701

Radiometric BLUE

400-500

11

Cosine

W/m²; W/cm²

37

32

70 nA/W/m2

RW-3702

Radiometric RED

700-800

11

Cosine

W/m²; W/cm²

37

32

70 nA/W/m2

RW-3703

Radiometric VIS

400-800

11

Cosine

W/m²; W/cm²

37

32

1.7 nA/W/m2

RW-3704

Radiometric NIR

800-1000

11

Cosine

W/m²; W/cm²

37

32

200 nA/W/m2

RW-3705

Radiometric VIS-NIR

400-1000

11

Cosine

W/m²; W/cm²

37

32

400 nA/W/m2

RW-3708

Radiometric NIR

1000-1700

11

Cosine

W/m²; W/cm²

37

32

nA/W/m2

Calibrated & Certified To International Standards
All optical radiation detectors are calibrated and certified by Gigahertz-Optik's calibration laboratory with both absolute sensitivity data and spectral responsivity plot provided.