发明名称 Image reading apparatus
摘要 An image reading apparatus includes a light transmitting member opposed to an original, a reading device for reading the original image through the light transmitting member, and a standard portion which is read by the reading device to perform shading compensation, wherein the standard portion is provided on the opposite side of the original with respect to the light transmitting member.
申请公布号 US2002051256(A1) 申请公布日期 2002.05.02
申请号 US20010875194 申请日期 2001.06.07
申请人 WARAGAI TSUYOSHI;HAYAKAWA YASUYOSHI;FUKATSU MASAYOSHI 发明人 WARAGAI TSUYOSHI;HAYAKAWA YASUYOSHI;FUKATSU MASAYOSHI
分类号 G03B27/62;G03B27/50;G06T1/00;H04N1/04;H04N1/19;H04N1/407;(IPC1-7):H04N1/46 主分类号 G03B27/62
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