发明名称 Transmitted-light-intensity measuring device, medium identifying device, medium conveying device, and image forming apparatus
摘要 A device for measuring intensity of a transmitted light, includes a first measuring unit that measures a first intensity of a light transmitted through a medium on a conveying path in its thickness direction and outputs a first measured value; a second measuring unit that is arranged adjacent to the first measuring unit, measures a second intensity of the light transmitted through the medium in the thickness direction, and outputs a second measured value; and an operating unit that obtains a true measured value from the first measured value and the second measured value.
申请公布号 US7889344(B2) 申请公布日期 2011.02.15
申请号 US20090453233 申请日期 2009.05.04
申请人 RICOH COMPANY, LIMITED 发明人 YAMAGISHI MASARU
分类号 G01N21/00 主分类号 G01N21/00
代理机构 代理人
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