Image sensor board and image sensor using the same

Details Image sensor board and image sensor using the same Image sensor board and image sensor using the same

H - Electricity

04

N

H04N 1/028 (2006.01) H01L 27/14 (2006.01) H01L 27/146 (2006.01) H01L 31/0232 (2006.01) H04N 1/031 (2006.01)

Patent

CA 2301610

An image sensor according to the present invention includes a casing (4), a light source disposed in the casing (4) for emitting light toward an object (K) to be read, and an image sensor board (6) provided, on an obverse surface thereof, with a plurality of light receiving elements (52) for generating image signals upon receiving light reflected by the object (K). The image sensor board (6) is disposed so that the obverse surface thereof is directed inwardly of the casing (4). The substrate (6) is provided with a light shielding layer (61) for covering the reverse surface of the substrate at least entirely over a portion of the obverse surface where the plurality of light receiving elements (52 ) are mounted, so that disturbing external light is prevented from entering inside the casing (4).

L'invention concerne un capteur d'images constitué d'un boîtier (4), d'une source lumineuse encapsulée dans ce boîtier (4) de manière à émettre de la lumière vers un objet (K) afin d'être lue, et d'un substrat (6) pour capteur d'images. Un élément récepteur de lumière (52) est monté sur la surface de ce substrat, afin de recevoir la lumière réfléchie par ledit objet (K), et ainsi de produire un signal image. Ce substrat (6) pour capteur d'images est assemblé de sorte que sa surface est opposée à l'intérieur dudit boîtier (4). Au moins une partie de la surface arrière de ce substrat (6) pour capteur d'images, correspondant à la zone permettant d'assembler plusieurs éléments récepteurs de lumière (52), est entièrement recouverte d'une couche de blindage contre la lumière (61), qui protège le boîtier (4) de toute lumière extérieure.

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