Multiplex illuminator and device reader for microcantilever...

G - Physics – 01 – N

Patent

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G01N 21/17 (2006.01) G01D 5/28 (2006.01) G01N 21/01 (2006.01)

Patent

CA 2504277

A device reader having a multiplex illuminator, the illuminator, and methods for reading deflection of a large number of microcantilevers are provided. The illuminator includes a micro-optical subassembly (illuminator) (101) for illuminating array (103) of cantilevers (103a) that includes a plurality of VCSELs (101a) for generating an array of electromagnetic beams (101b), and focuses the beams on the cantilevers (103a). Deflection of the cantilevers (103a) causes a change in angle of the beams reflected from the cantilevers (103a), which is recorded by an array (106) which includes a plurality of position sensitive devices (106a).

L'invention concerne un lecteur de dispositif à illuminateur multiplexé, cet illuminateur ainsi que des procédés permettant de lire la déflexion d'un grand nombre de microleviers. Ledit illuminateur comprend un sous-ensemble micro-optique destiné à illuminer des microleviers (illuminateur), qui utilise une pluralité de lasers à cavité verticale et à émission par la surface (VCSEL) pour produire un réseau de faisceaux électromagnétiques et focalise ces faisceaux sur les microleviers. La déflexion des microleviers entraîne une variation d'angle des faisceaux réfléchis par ces microleviers, laquelle variation est enregistrée par une pluralité de dispositifs à détection de position.

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