摘要: 一种光学指纹识别系统,包含至少一个发光元件,一片用于透光的压板,及一个取像装置.该压板供手指按压,并具有形成在一表面且导引入射光分散于该压板的多个微结构.该取像装置截取作用于手指的光线,进行手指指纹的识别.由此,以前述微结构使入射光均布于该压板,增加集中于手指的光亮度,进而有效提升识别率....
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Canadian National (CN) is urging US regulators to force Canadian Pacific (CP) to sell certain Kansas City Southern (KCS) rail lines as a condition of the CP-KCS merger. But CP says its competitor is wrong to claim the lines are parallel, which is the basis of CN's argument to press ...
发明人: 藤原 修 摘要: PROBLEM TO BE SOLVED: To make a luminance distribution of illumination light uniform and to increase the degree of freedom of design of a lens for illumination when an illumination light source is constituted by arranging a plurality of light emitting means.收藏...