Household appliance with fingerprint sensor

Details Household appliance with fingerprint sensor Household appliance with fingerprint sensor

G - Physics

06

K

G06K 9/00 (2006.01) G06K 9/20 (2006.01)

Patent

CA 2644838

The present invention relates to a household appliance (10) such as an oven, a refrigerator, or a washing machine. The household appliance comprises a transparent casing element (12) and a fingerprint sensor (20) mounted to the inside of an exterior surface of said casing element (12). The sensor comprises a light source (21; 21'; 21"; 21''') emitting light for which said casing element (12) is transparent, a detector (23; 23"; 23'") for detecting reflected light emitted from said light source (21; 21'; 21"; 21'") and a light guiding means (22; 22'; 22"; 22'"; 22b' ' ' ) for guiding emitted light from said light source (21; 21'; 21"; 21'") towards the casing element (12) and guiding light reflected at the exterior surface of the casing element (12) to the detector (23; 23"; 23'"). Thereby detection of a fingerprint image through said casing element (12) is rendered possible.

L'invention concerne un appareil ménager (10), tel qu'un four, un réfrigérateur ou une machine à laver. Cet appareil ménager comprend un boîtier transparent (12) et un détecteur (20) d'empreintes digitales monté à l'intérieur d'une surface extérieure dudit boîtier (12). Le détecteur est composé d'une source de lumière (21, 21', 21'', 21''') émettant de la lumière passant à travers le boîtier (12), d'un capteur (23, 23'', 23''') servant à capter la lumière réfléchie émise par ladite source (21, 21', 21'', 21''') et de moyens de guidage de lumière (22, 22', 22'', 22''', 22b') servant à guider la lumière émise depuis ladite source (21, 21', 21'', 21''') vers le boîtier (12) et à guider la lumière réfléchie au niveau de la surface extérieure dudit boîtier (12) vers le capteur (23, 23'', 23'''). Ceci permet de détecter l'image d'une empreinte digitale à travers ledit boîtier (12).

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