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公开(公告)号:EP0358818A1
公开(公告)日:1990-03-21
申请号:EP88308419.6
申请日:1988-09-12
申请人: Golberstein, Moshe
发明人: Golberstein, Moshe
CPC分类号: G01B11/303 , G01J2001/1636 , G01N21/474 , G01N2021/4716 , G01N2021/4742
摘要: A relative reflective photometry instrument is provided for measuring surface reflectance of a specimen (17) and comprises a light source (1) at one end and a pair of photosensors (9, 23) at the other end, one of the photosensors (9) being positioned to receive rays directly from the light source and the other (23) being positioned to receive light scattered from the specimen. The photosensors are provided with a central opening (13) through which a portion of the light passes onto the specimen (17) and is thereafter reflected onto the photosensor (23). A comparing circuit (5, 79) can comprise a divider for establishing the ratio between the signals extracted from the two photosensors.
摘要翻译: 提供了一种用于测量样本(17)的表面反射率并包括一端的光源(1)和另一端的一对光电传感器(9,23)的相对反射测光仪器,其中一个光电传感器(9) 被定位成从光源直接接收光线,而另一个(23)被定位成接收从样本散射的光。 光传感器设置有中心开口(13),光的一部分通过该中心开口穿过样本(17),然后被反射到光传感器(23)上。 比较电路(5,79)可以包括用于建立从两个光电传感器提取的信号之间的比率的分频器。
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公开(公告)号:EP0358818B1
公开(公告)日:1992-04-22
申请号:EP88308419.6
申请日:1988-09-12
申请人: Golberstein, Moshe
发明人: Golberstein, Moshe
CPC分类号: G01B11/303 , G01J2001/1636 , G01N21/474 , G01N2021/4716 , G01N2021/4742
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