Flexfoils having connector tabs

G - Physics – 02 – B

Patent

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Details

G02B 6/44 (2006.01) G02B 6/36 (2006.01) G02B 6/38 (2006.01) G02B 6/43 (2006.01)

Patent

CA 2281655

In an optical flexfoil (1) comprising optical waveguides such as optical fibers (3) ends of the optical fibers can be located at inner and edge positions of the flexfoil. Cut-outs (7, 9) are formed around such fiber ends to form tabs (11, 13) which can be bent laterally from the plane of the flexfoil (1) so that the ends of the fibers (3) are located at the exterior edges of the tabs. This allows a connection of the optical fibers to external devices in different directions such as a connection in a direction perpendicular to the flexfoil (1). Thus, the flexfoil (1) can be used as an optical supplement to an electrical backplane (21), the tabs (11) extending through openings (29) in the backplane. Also, an easy handling of the flexfoil is achieved, since no connection tabs extending beyond the edges of the flexfoil are required. This is advantageous for example in polishing the ends of the fibers at the tab ends.

Dans une feuille flexible (1) optique comprenant des guides d'ondes optiques tels que des fibres optiques (3), les extrémités de ces fibres peuvent être disposées soit au milieu soit sur les bords de la feuille flexible. Des découpes (7, 9) sont pratiquées autour des extrémités de telles fibres de façon à former des languettes (11, 13), que l'on peut replier latéralement à partir du plan de la feuille flexible (1) afin que les extrémités des fibres (3) se situent sur les bords extérieurs des languettes. Les fibres optiques peuvent ainsi être connectées à des dispositifs extérieurs selon différentes orientations, notamment perpendiculairement à la feuille flexible (1). De la sorte, il est possible d'utiliser la feuille flexible (1) comme organe optique venant compléter un fond de panier (21) électrique, les languettes (11) dépassant par des orifices (29) ménagés dans le fond de panier. Cela simplifie également la manipulation de la feuille flexible, étant donné qu'il n'y a plus besoin que les languettes de connecteurs dépassent des bords, ce qui présente un avantage lors, par exemple, du polissage des extrémités de fibres en bout de languette.

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