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Design issues
There are three critical design objectives for satisfying MIL-L-85762A:
- Minimize NR within specification and prevent leaks of unfiltered light.
- Meet color specifications.
- Maximize visible light transmission for the best possible luminance, contrast, and daylight readability. These design objectives are interrelated. Filter and legend design requires accurate testing of materials, complex analysis of trade-offs, as well as strict control of variability in production. That’s why Korry develops its own designs, carefully evaluates and selects its own materials, and manufactures its own filters and legends.
Korry physicists and optical engineers work with the most advanced optical design equipment to produce the best solution for each NVIS application. Our lighting R&D lab features a collection of lasers and Instrument Systems Spectro 320 spectroradiometers to quickly and precisely evaluate filter materials.
Korry also stands out as the only company in the industry with a legend facility that allows us to cast filter and legend materials to our own proprietary formulations. This gives us precise control over our materials and the performance of our final product.
Another Korry advantage is our use of insert-molding techniques to embed legend and filter components directly into switch or indicator caps for a complete light and environmental seal.
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