Radiation properties of two types of luminous textile devices containing plastic optical fibers

Bärbel Selm; Markus Rothmaier

doi:10.1117/12.722992

12 June 2007 Radiation properties of two types of luminous textile devices containing plastic optical fibers

Bärbel Selm, Markus Rothmaier

Proceedings Volume 6593, Photonic Materials, Devices, and Applications II; 65930E (2007) https://doi.org/10.1117/12.722992
Event: Microtechnologies for the New Millennium, 2007, Maspalomas, Gran Canaria, Spain

Abstract

Luminous textiles have the potential to satisfy a need for thin and flexible light diffusers for treatment of intraoral cancerous tissue. Plastic optical fibers (POF) with diameters of 250 microns and smaller are used to make the textiles luminous. Usually light is supplied to the optical fiber at both ends. On the textile surface light emission occurs in a woven structure via damaged straight POFs, whereas the embroidered structure radiates the light out of macroscopically bent POFs. We compared the optical properties of these two types of textile diffusers using red light laser for the embroidery and light emitting diode (LED) for the woven structure as light sources, and found efficiencies for the luminous areas of the two samples of 19 % (woven) and 32 % (embroidery), respectively. It was shown that the efficiency can be greatly improved using an aluminium backing. Additional scattering layers lower the fluence rate by around 30 %. To analyse the homogeneity we took a photo of the illuminated surface using a 3CCD camera and found, for both textiles, a slightly skewed distribution of the dark and bright pixels. The interquartile range of brightness distribution of the embroidery is more than double as the woven structure.

Citation Download Citation

Bärbel Selm and Markus Rothmaier "Radiation properties of two types of luminous textile devices containing plastic optical fibers", Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65930E (12 June 2007); https://doi.org/10.1117/12.722992

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