Light meter with radiance measurement LDM-9811

light meter with radiance measurement
light meter with radiance measurement
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Characteristics

Options and accessories
with radiance measurement

Description

LDM-9811 light detector for radiation protection Radiance is the quantity used for the determination of blue light hazard and retinal thermal hazard to the human eye measured in the radiometric unit of W/(m2*sr). For spot source configurations irradiance is generally measured. Viewer Module for Radiance Measurements LDM-9811 is a modularly designed viewer module that is combined with PD-16 series detectors to form the complete radiance detector. A one piece machined aluminum housing ensures the best possible stability in laboratory and field use. The LDM-9811/PD-16 features a wide aperture high light throughput focusing objective. The useable measurement distance of the LDM-98 spans from 0.3m to infinitive. Selectable Field-of-View A selector knob on the LDM-9811 rear panel enables the selection of the three field-of-views 1.7, 11 and 100mrad specified to measure the limit values for spot and large area sources in the Blue-light hazard regulations. Viewfinder for Precise Alignment and Focusing The targeted spot to be measured is visible through the ocular viewfinder. In combination with the cross-hair targeting aid alignment of the LDM-9811 to the zone of interest is simple. Focusing is achieved by adjusting the sharpness of the image on the viewfinder screen.

Catalogs

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Broadband light meters, UV-VIS-NIR radiometers

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.