Photopic & Scotopic Light Detectors

VL-37 Series Illuminance Detectors: Light Detectors for illuminance with photopic V(λ) and scotopic V'(λ) spectral sensitivity. V(λ) matching for DIN classes A and B. 20mm height supports the ANSI Lumen measurement procedure. Cosine corrected & calibrated in lx with calibration certificate.

VL-6001 Light Detector for illuminance of spot light type sources. High gain 50mm diameter lens with chromaticity correction. Field of view 1.7*. Calibrated in lx with calibration certificate.

PD-9310A, PD-9310B Light Detectors for photopic illuminance. Large active area to measure low light levels. DIN A or DIN B V(λ) matching. Cosine corrected & calibrated in lx with calibration certificate.

VL-37-Light-Detector VL-6001-Illuminance-Detector PD-9310A Light Detector
VL-37 Series Illuminance Detectors VL-6001 Light Detector PD-9310 Light Detector

Photopic & Scotopic Illuminance 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

VL-3701

Photopic; f1<3%

380-780

7

Cosine

lx, fc

37

20

0.5nA/lx

VL-3702

Photopic; f1<5%

380-780

7

Cosine

lx, fc

37

20

0.5nA/lx

VL-3704

Photopic; f1<5%

380-780

7

Cosine

lx, fc

37

20

20pA/lx

VL-3705

Scotopic; f1<5%

380-780

7

Cosine

lx, fc

37

20

0.2nA/lx

VL-6001

Photopic; f1<3%

380-780

50

1.7 °

lx,fc

60

100

477nA/lx

PD-9310A

Photopic; f1<3%

380-780

30

Cosine

lx, fc

37

122

2.8nA/lx

PD-9310B

Photopic; f1<6%

380-780

30

Cosine

lx,fc

37

122

2.8nA/lx

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.