This Product is discontinued, please refer to the Alternatives shown below under Similar Products or contact us directly.
Alternative Products for this discontinued product:
VL-3701 with SRT-M37-L
Detector head to measure the photopic illuminance in lx and the luminance in cd/m²
- front lenses with 1°, 2° or 5° viewing angle
- for the usage with Optometers and amplifiers
- calibration certificate
Illuminance and luminance measurement
The VL-3701 is a detector for precise illuminance measurements in Lux. Its application potential can be enhanced using an SRT-M37-L series front lens adapters so as to measure the luminance in cd/m². Since measurement field focusing is hereby not possible, this combination is mostly applicable for extensive illumination fields e.g. light boxes.
In order to fix the SRT-M37L lens adapter onto the VL-3701 measurement head, the SRT-M45/37 adapter is required. This is attached onto the measurement head using side screws. For secure fitting, the lock screws fix into the V-nut on the measurement head. The lens adapter can then be simply screwed in. The SRT-M45/37B adapter has an M6 and a (1/4”-20 BSW) tripod screw on the side for mounting to tripods and others.
1° to 5° Field-of-View angle
Lens adapters with 1°, 2°, and 5° FOV angles are hereby offered.
Luminance responsivity calibration can be performed by Gigahertz-Optik‘s calibration laboratory for optical measurands. Calibration is validated by a calibration certificate.
Front lens adapter vor VL-37 detector heads