Invention Grant
US08651384B2 Code reading apparatus and computer program product 有权
代码阅读器和计算机程序产品

Code reading apparatus and computer program product
Abstract:
A code reading apparatus includes: a storage section storing an applied voltage table showing a relationship between a focal distance of a liquid lens and an applied voltage to the liquid lens; a laser focus section performing laser focus adjustment; a contrast focus section performing contrast focus adjustment; and a correction section correcting a content of the applied voltage table based on a distance from the liquid lens to a subject found by the laser focus section and a corresponding applied voltage with which the subject is brought into focus by the contrast focus section.
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