| Titre : |
Maximum radiation intensity based on end-fused optical fiber bundles |
| Type de document : |
texte imprimé |
| Auteurs : |
Holger Bäuerle, Auteur ; Bronislav Hracek, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 20-23 |
| Langues : |
Multilingue (mul) |
| Catégories : |
Adhésifs -- Séchage sous rayonnement ultraviolet
Fibres optiques
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
Optical fiber bundles or liquid light conductors are frequently used for surface-oriented UV-light curing. In either case, users had to accept noticeable drawbacks. End-fused optical fiber bundles, on the other hand, finally allow to use the full capacity of the light source. |
| Note de contenu : |
-Large area UV curing has so far only been possible by accepting compromises
- End-fused fiber bundles combine the strengths of conventional optical fibers
- Fig. 1 : Bundles of optical fibers are a common way to apply surface UV irradiation
- Fig. 2 : Glued fiber bundles always have "blind" spots. As a result, depending on the bundling method, between 25 and 50 percent of the transferred light is lost
- Fig. 3 : In bundles of end-fused fibers, all fiber gaps are omitted, since the fibers convert into a hexagonal shape during the course of the fusion
- Fig. 4 : The full light capacity is not fully transferred only in the jacket areas of the individual fibers - visible here as darker spots on the surface. That disadvantage can be minimized, however, through skillful selection of the core-mantle ratio
- Fig. 5 : In order to ensure a homogeneous radiation intensity, only the input ends of the fiber are initially fused and irradiated with UV-light during bundle production. Based on the light emission at the fiber output ends, the fibers are then manually arranged in such a way that uniformly strong radiation is guaranteed across the entire focal surface
- Fig. 6 : For use with applications that require parallel point radiation, only the fiber inputs are fused, while the outputs are fanned out according to application requirements |
| En ligne : |
https://drive.google.com/file/d/1m5sKOl5Vg8urnlMgVTOp6TxMml6OTfPS/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34254 |
in ADHESION - ADHESIVES + SEALANTS > Vol. 17, N° 2/2020 (2020) . - p. 20-23
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