Analysis of LLL System Properties for Different Excitation Parameters

Photoluminescent strips forming a Low Location Lighting (LLL) system are the primary method for marking escape routes on passenger ships. The LLL can be built as self-luminous (powered by electricity) or made series of photoluminescent materials, which glow and indicate route after loss basic emergency lighting. To ensure correct visual guidance, these must installed at specific locations in passageways achieve appropriate photometric parameters certain time from their activation. properties depend type luminescent material used, excitation source, exposure parameters. This paper presents results laboratory tests two types materials used construction systems. We recorded change luminance measured values obtained 10 60 min under to light sources commonly interior lighting It turns out that replacing fluorescent lamps with LED reduce system.