Optical free space signalling system

H - Electricity – 04 – B

Patent

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Details

H04B 10/00 (2006.01) H04B 10/10 (2006.01) H04B 10/207 (2006.01) H04B 10/26 (2006.01)

Patent

CA 2378410

A signalling system is provided which employs one or more arrays of communication elements together with an additional optical element for increasing the apparent packing density of the elements in the arrays. In one embodiment, this is achieved by using a microlens array matched with the array of communication elements. In another embodiment two arrays are provided which are optically combined with a beamsplitter. In a third embodiment, two optical systems are provided which are offset in angle from each other so that there is a different mapping between position in the array and position within the field of view.

L'invention concerne un système de signalisation dans lequel on utilise au moins une matrice d'éléments de communication en même temps qu'un élément optique supplémentaire, afin d'accroître, dans le(s) groupe(s), la densité apparente de tassement des éléments. Dans un mode de réalisation on obtient cet accroissement en utilisant un ensemble de microlentilles adaptées au(x) matrice(s) d'éléments de communication. Dans un autre mode de réalisation, on a combiné optiquement deux matrices avec un diviseur de faisceaux. Dans un troisième mode de réalisation, on utilise deux systèmes optiques décalés l'un de l'autre en formant entre eux un angle, de façon à créer une cartographie différente entre une position dans la matrice et une position dans le champ de vision.

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