公开(公告)号：US20140268115A1

公开(公告)日：2014-09-18

申请号：US14162083

申请日：2014-01-23

Applicant: Janesko Oy

Inventor： Ville VOIPIO

IPC: G01N21/41

CPC classification number: G01N21/4133 ,  G01J3/0205 ,  G01J3/18 ,  G01J3/502 ,  G01N21/0303 ,  G01N21/25 ,  G01N21/43 ,  G01N2021/0389

Abstract: An exemplary method for measuring a refractive index of a substance being measured through an optical window, includes arranging the optical window in contact with the substance being measured, directing light to the interface of the optical window and substance being measured, where part of the light is absorbed by the substance being measured and part of it is reflected from the substance being measured to form an image, in which the location of the boundary of light and dark areas expresses a critical angle of the total reflection dependent on the refractive index of the substance being measured, and examining the formed image. Light is directed on a first structure and to desired angles on an interface between the optical window and substance being measured. Light reflected from the interface of the optical window and substance being measured is directed on a second structure.

Abstract translation: 用于测量通过光学窗口测量的物质的折射率的示例性方法包括将光学窗口与待测量的物质接触，将光引导到所述光学窗口和所测量的物质的界面，其中部分光 被被测量的物质吸收，并且其一部分被被测量的物质反射以形成图像，其中光和黑色区域的边界的位置表示全反射的临界角，其取决于折射率 测量物质，并检查形成的图像。 光被引导在第一结构上，并且在光学窗口和被测量的物质之间的界面上被指向所需的角度。 从光学窗口的接口反射的光和被测量的物质指向第二结构。