发明名称 Bildlesegerät.
摘要 This image reading apparatus includes a light source (1) for illuminating an object, a lens array (5) for focusing reflected light from the object into a predetermined position, and an image sensor (3) for reading an image formed by the focused light. The lens array (5) includes a transparent base (5a), and a diffraction element (8) provided on at least an incident plane and an emission plane of the base (5a). The lens array constitute an array including a plurality of lens areas. The employment of the diffraction element renders a shorter imaging distance of light from the object and thus a reduction in the size of the apparatus.
申请公布号 DE69013694(T2) 申请公布日期 1995.06.01
申请号 DE1990613694T 申请日期 1990.01.03
申请人 SHARP K.K., OSAKA, JP 发明人 TSUJI, SHIGEKI, HIGASHIHIROSHIMA-SHI HIROSHIMA-KEN, JP;KURATA, YUKIO, TENRI-SHI NARA-KEN, JP;YOKOTA, TAIZO, HIGASHIHIROSHIMA-SHI HIROSHIMA-KEN, JP
分类号 H01L31/04;G02B3/00;G02B5/18;H04N1/028;H04N1/031;(IPC1-7):H04N1/028;G02B6/06 主分类号 H01L31/04
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