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Proceedings Paper

Flat light guides with prismatic elements coupled with a mini aperture fluorescent lamp
Author(s): Krzysztof Zaremba
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Paper Abstract

Flat light guides are modern solution enabling production of luminaries characterised by large area and low height. The amount of the luminous flux, which might penetrate the side-lit flat light waveguide with a predefined thickness depends on the light source's luminance. Special fluorescent lamps equipped with an internal reflector layer were designed for this kind of illumination systems. Such lamps are typically characterised by small aperture along the spine of the lamp. The aperture technology boosts the luminance value within the lamp's aperture to levels even 4 to 5 times higher than the average luminance of a standard fluorescent lamp. The presented article contains a detailed analysis of the impact of the aperture angle size on the coupling efficiency. It was also shown that application of a mini aperture fluorescent lamp influences changes in the luminous intensity curves of prismatic elements, which are most commonly used to direct the luminous flux.

Paper Details

Date Published: 30 September 2005
PDF: 7 pages
Proc. SPIE 5956, Integrated Optics: Theory and Applications, 59561O (30 September 2005); doi: 10.1117/12.623315
Show Author Affiliations
Krzysztof Zaremba, Białystok Technical Univ. (Poland)

Published in SPIE Proceedings Vol. 5956:
Integrated Optics: Theory and Applications
Tadeusz Pustelny; Paul V. Lambeck; Christophe Gorecki, Editor(s)

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