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  • Variable Luminance Source
Nov 2009
Optikos CorporationRequest Info
WAKEFIELD, Mass., Nov. 4, 2009 – Optikos Corp. has developed the VLS-100 variable luminance source, a controllable source of uniform visible illumination for testing cameras, image intensifiers and visible to near-infrared night vision devices. It is used with I-SITE software or as a stand-alone computer-controlled device.

OptikosCorp--VLS-100.jpgIt features a 50-mm-diameter source aperture with <2% luminance nonuniformity. The source brightness is continuously adjustable over a dynamic range of 106 that is computer controlled to within 3% of its set value. A variety of filters and test targets is available to support various performance measurements

Features include an automated variable attenuator and aperture wheel with high-resolution stepper motors; an integrated photometer that provides real-time monitoring of exit port luminance, allowing closed-loop control; a filter drawer that allows for multiple 50 × 50-mm filters to adjust color temperature and spectral output; and a digitally controlled laboratory-grade power supply that ensures constant lamp output and stable color temperature.

The dual integrating sphere design ensures good illumination uniformity. Color temperature is NIST-traceable, and custom targets are available for objective or subjective metrology testing, boresight measurements and contrast measurements.

For more information, visit:  

Optikos Corp.
107 Audubon Road
Building 3, Suite 25
Wakefield, MA 01880
Phone: (617) 354-7557
Fax: (617) 354-5946


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A device used to compare the luminous intensities of two sources by comparing the illuminance they produce.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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