Kopp Glass announces successful development of two new NVIS Green A Intruder filter options.

Date: 22 February 2012

Low Weight, High Transmission K0521 Green A Intruder LED-compatible Glass NVIS Filters Developed: Kopp Glass, Inc., an ISO 9001:2008 certified company, announces its recent development of new glass formulations that are suitable for use in the aerospace market for Night Vision Imaging Systems (NVIS) glass filters.

The new K0521 NVIS filter maintains a similar chromaticity to its incandescent filter counterpart when using specific white LEDs. Resulting filtered light chromaticity meets the MIL-STD-3009, MIL-L-85762A, and RTCA/DO-275 requirements, with corresponding night vision radiance (NRA) levels well below present standard expectations.

These new filters can be used in civilian or military aircraft and function suitably as annunciator, indicator, and cockpit display light filter applications. The NVIS application requires the minimization of radiation output from cockpit lighting and the Kopp Glass filters continue to exceed military standards with a low radiance output. Chromaticity values meet the military and civilian standard requirements when using specified white LEDs with a correlated color temperature (CCT) range of approx. 4000-5500K. Demands for lower weight, LED-compatible NVIS filter options were answered with the newest designs by decreasing the historical LED-compatible filter product wall thicknesses to 0.5 mm. Kopp Glass is now offering the K0521 filter at a 0.5 mm application thickness, along with a comparable color option for K0525 at 2.0 mm application thickness.

More details and specifics of the new K0521 NVIS Green A Intruder filter product is available at http://www.koppglass.com/showNVIScatalog.html. New K0513 Green A Intruder Incandescent NVIS Filter Designed for High Color Saturation and Low Radiance: Kopp Glass, Inc. has continued to diversify its NVIS filter solution offerings by designing an increased color saturation Green A Intruder filter formulation. The K0513 formulation has been designed for use with an incandescent light source with a CCT in the range of 1600-2200K. The new filter design has been prepared to function at an application thickness of 1.0 mm. Although the color saturation has increased as compared to the traditional K050X filter systems, transmission remains in excess of 10% and provides decreased radiance for critical applications.

The increased colorant hue and reduced transmission versus past Intruder Green A filters makes the K0513 filter a suitable candidate for use in applications where high contrast and daylight readability are critical design considerations. These new designs demonstrate Kopp Glass’ ability to customize these critical NVIS formulations to meet an array of design requirements, without sacrificing quality or functionality. Glass technical or sales representative directly to learn more of the new product options or any potential new product development. Learn more details and specifics of the new K0513 NVIS Green A Intruder filter product at http://www.koppglass.com/showNVIScatalog.html. Kopp Glass can provide you with cast glass blanks for subsequent drilling, routing, cutting, grinding, and machining processes. Alternatively, Kopp Glass can provide molded glass parts if order volumes merit. Further chromaticity customization is possible if desired. Contact your Kopp Glass technical or sales representative directly to learn more of the new product options or any potential new product development. Darin M. Bernardi Sales & Marketing Manager 412-501-0217 dbernardi@koppglass.com www.koppglass.com

600450 Kopp Glass announces successful development of two new NVIS Green A Intruder filter options. glassonweb.com

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