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appendix 1 ond material has been used as a reflection layer for the light emitted from the optical fibres, optical fibres and the second material dominating each one side of the double layered structure. Using only white materials offered the possibility to see the pure material impact on the light intensity and quality. See figure 1. The second group continued investigating double layered structures by combining optical fibres with synthetic metallic yarns. Samples, where double layered parts and parts with only optical fibres stand beside each other, showed clearly noticeable differences in light intensity. The double layered sections, using metal yarn as reflection layer, show a stronger light intensity. These samples visualized, again, the importance of a reflection layer. Beside that, the colours of the metal yarns had an impact on the light colour – testing all samples with a white LED lamp – showed slight yellowish and reddish tones by the use of brass and copper yarns. See figure 2. The third group explored the integration of relief elements – crocheting knots into the surface during weaving, or weaving in silk petals, and additional colours. The 3D elements create shadow effects in the light surface. The piece with the integrated silk petals created, on one side, a pure light surface, and on the other side, a multiple toned yellowish light surface. See figure 3. A further important element for all set ups were; to use a transparent monofilament warp, to cover the optical fibres as little as possible. Choosing a transparent warp material allows the two sides of a double layered structure to appear as pure as possible. Thereby both – lighting and reflecting layer – can function as optimally as possible. All samples were finally lightened up through a white LED lamp, as well as a light projector including a colour wheel. Presenting the samples with white light, showed the pure material impact on the light. Demonstrating the samples through different coloured lights opened up for future investigations towards the interplay of structure, material and coloured light. In Summary can be said that the experiments resulted in a range of samples, which showed different possibilities of how to integrate optical fibres into weaving structures. Phase 2: industrial weaving Working on concepts of lighting for an everyday environment – creating big window screens for public buildings et cetera – raised questions about industrial production possibilities. Is it possible to weave PMMA optical fibres 188
Figure 1 Figure 2 Figure 3 on industrial machines? The aesthetic goal stayed the same, i.e. to create an even all over lighting surfaces through optical fibres in a woven structure? A broad range of experiments on an industrial shaft loom (Dornier) have been set up, to see if optical fibres can withstand the industrial production process. Previous optical fibres were only integrated into the weft system of weave structure, now they were investigated in the weft- and the warp system. The thesis work The screen – a textile installation by Lene N. Iversen (personal communication, October 2006), inspired to introduce optical fibres in the warp system as well. In her thesis she had successfully integrated PMMA optical fibres into the warp system of a hand loom. Integrating optical fibres into the warp system, opens up for larger scale opportunities for lighting textiles. Based on previous experiments double layered structures were chosen, as well as real metal yarns as reflecting material for the light emitted through the optical fibres. The experiments using optical fibres (ø 0,25mm) in the weft system resulted in a range of samples which were able to create a lighting surface. Some bindings provided lighting over the whole width of the 189
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Composing over time, temporal patte
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PRELUDE. . . . . . . . . . . . . .
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Textiles With the beginning of the
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on the circadian dominated body pro
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in Light Shell (2008) and Light and
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quickly became my main goal. Explor
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This form of physical involvement i
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physical objects, viz. the developm
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“The work of designing light is a
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experiments
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experiments Experimental Set-up: La
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experiments There are two ways in w
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experiments colour flow_part 1 The
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experiments colour flow_part 2 Rese
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EXPERIMENTS such a solution is an o
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ate complex patterns, compositions
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experiments rhythm exercise Experim
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experiments rhythm exercise_part 1
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Third Set-up: Code Microcontroler D
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experiments The following descripti
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experiments The element in Part 1 w
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Third Set-up Fourth Set-up gives th
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Page 158 and 159: acknowledgements
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Page 162 and 163: eferences HEMMINGS, J. 2012. Warp +
Page 164: efernces NOSAD. N.D. NOSAD. Availab
Page 167 and 168: Page: 10 Graphics: DEHOFF, P. 2008.
Page 169 and 170: Optical Fibres “What are optical
Page 171 and 172: woven light - powered by sun energy
Page 177 and 178: Industrial weaving MA Studies, 2006
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Page 181 and 182: Light Shell MA Thesis, 2008 The Swe
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Page 185 and 186: Esparteria Pilas, Andaluzia, Spain,
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