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Detector head to measure the photopic spot luminance in cd/m²

LDM-9811

Detector for Blue-light and retinal thermal hazard of expanded light sources. Features: 1.7mrad, 11mrad and 100mrad field-of-view. view finder, focusable, for the usage with Optometers, calibration certificate.

LDM-C50

Spectral radiance optic for BTS2048 series with integrated camera. Focus-able achromatic objective, for the usage with BTS2048 series. Different apertures and measurement distances including calibration are possible.

LDM-9810

Detector head to measure the photopic spot luminance in cd/m². Features: selectable 20', 1° and 6° viewing angles, view finder, focus able achromatic lens, for the usage with Optometers and amplifiers, calibration certificate.

Precision luminance detector head

For the measurement of spot luminance, Gigahertz-Optik GmbH offers the LDM-9810 viewfinder optics that can be combined with the PD-16VL01 photometer detector.

Adjustable measurement field angles

The luminance detector head has 3 adjustable measurement field angles with 20 minutes, 1 degree and 6 degrees which can be setup at the same measurement distance.

High-quality focusable lens with viewfinder

The LDM-9810 viewfinder has a high-quality, chromatically corrected lens. The measurement distance ranges from 0.33m to infinity. Measurement field targeting and focusing can be done using the viewfinder.

Close-up lenses for measurement spots up to 0.1mm

The optional LDM-98Z-NL close-up lens enables 1:1 to 2:1 mappings. Measurement field sizes starting from the 0.1mm range make it possible to perform luminance measurements over very tiny illuminated surfaces.

Photometric DIN 532 T7 quality class A

The matching of the photometric responsivity of the PD-16VL01 detector combined with the LDM-9810 viewfinder corresponds to the DIN 5032 quality class A.

Extensive selection of optometers

The LDM-9810 luminance measurement head with the PD-16VL01 can be combined with all optometers from Gigahertz-Optik.

Traceable calibration

Calibration of the luminance responsivity in A/(cd/m²) is performed by Gigahertz-Optik‘s calibration laboratory for optical measurands. The details provided in the calibration certificate are as stipulated by the ISO 17025 specifications.

9810_PD-16VL01 typical spectral responsivity

PD-16VL photometric detecor for use with LDM-9810 and LDM-9811

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VL-3701 with SRT-M37-L

Detector head to measure the photopic illuminance in lx and the luminance in cd/m²

PD-9310 with SRT-M37-L

High sensitive detector head to measure the photopic luminance in cd/m². Features: front lense for 1°, 2°, 5° or 10° viewing angle, for the usage with Optometers and amplifiers, calibration certificate

LDM-9901