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New photometric detector for very low illuminance measurements

Gigahertz-OptikTo meet the demands of the increasing number of very low light level applications, Gigahertz-Optik has introduced the VL-3707 precision photometric detector capable of accurate measurements down to less than 100 μlux.

For example, the VL-3707 is suitable for testing and characterising night vision equipment used in surveillance, security and automotive applications. The measurement of moonlight and starlight (mlux to μlux) enables research on light pollution of the night sky. Emergency lighting standards (e.g. DIN EN 1838 and ISO 30061) require measurement resolution in the mlux range.

The VL-3707 incorporates a latest technology photodiode, high transmission photometric filtering, and a cosine diffuser to create a highly sensitive illuminance detector. Used in conjunction with the Gigahertz-Optik P-9710 Optometer, the VL-3707 provides a sufficiently high signal-to-noise ratio for reliable measurements even in the 100 μlux range.

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