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指紋影像擷取裝置 | Fingerprint Image Capturing Apparatus
Summary
本發明涉及一種指紋影像擷取裝置，其包括：光源、手指接觸面、凸透鏡、影像感測器以及光柵。光源為面光源，光柵設置在面光源的出光面上；面光源用於發射光束，光柵用於改變光束的傳播方向以形成檢測光束，手指接觸面用於供使用者放置手指以反射檢測光束得到反射光束，凸透鏡用於將反射光束聚焦至影像感測器，以及影像感測器用於根據聚焦的反射光束產生指紋影像。本發明借由將光束偏轉元件例如光柵設置在面光源的出光面來改變面光源發射的光束的傳播方向，因而可以使得指紋影像擷取裝置的結構更加緊湊。
Technology Benefits
縮小體積
Technology Application
Lighting
Application Date
2015-12-08
Application No.
TW104141099
Classes
G02B17/02 | G06K9/20
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