Miniature auto focus piezo actuator system

H - Electricity – 04 – N

Patent

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Details

H04N 5/30 (2006.01) G06K 7/00 (2006.01) G06K 7/10 (2006.01) G06K 19/14 (2006.01) H04N 5/335 (2006.01)

Patent

CA 2508597

Actuator systems are provided for automatically focusing an optical image reader. Techniques are also provided which are applicable to the design of imaging engines and imaging lens systems associated with image readers of various types. More specifically, the present invention relates to lens guidance assemblies and actuator systems for automatically focusing an objective lens associated with an imaging system of an optical image reader. The optical image reader is preferably an optical code image reader for imaging optical codes, such as bar codes.

L'invention concerne des systèmes actionneurs destinés à mettre au point de façon automatique un lecteur d'image optique. L'invention concerne également des techniques pouvant être appliquées à la conception de moteurs d'imagerie et de systèmes de lentille d'imagerie associés à des lecteurs d'image de divers types. Plus particulièrement, cette invention concerne des ensembles de guidage de lentille et des systèmes actionneurs destinés à mettre au point de façon automatique une lentille d'objectif associée à un système d'imagerie d'un lecteur d'image optique. Le lecteur d'image optique consiste, de préférence, en un lecteur d'image à codage optique en vue d'imager des codes optiques, tels que des codes barres.

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