JPH0416344U

JPH0416344U -

Info

Publication number: JPH0416344U
Application number: JP5764890U
Authority: JP
Priority date: 1990-05-31
Filing date: 1990-05-31
Publication date: 1992-02-10

Description

[Brief explanation of drawings]

第１図はこの考案の反射濃度測定装置の概略図
、第２図及び第３図は第１図の構成において照射
光量分布及び受光感度分布を示す図、第４図はこ
の考案の反射濃度測定装置の他の実施例の概略図
、第５図は第４図の構成を用いて測定する照射光
量分布と受光感度分布を示す図、第６図はこの考
案の反射濃度測定装置のさらに他の実施例の概略
図、第７図は第６図の構成において照射光量分布
と受光感度分布とを示す図、第８図は従来の反射
濃度測定装置の概略図である。図中符号１は投光系、２は受光系、３，４はバ
ンドルフアイバー、３ａ，４ａは切断面、５は試
料、５ａは測定面、６は凸レンズ系である。 Figure 1 is a schematic diagram of the reflection density measuring device of this invention, Figures 2 and 3 are diagrams showing the irradiation light amount distribution and light receiving sensitivity distribution in the configuration of Figure 1, and Figure 4 is the reflection density measurement device of this invention. A schematic diagram of another embodiment of the device, FIG. 5 is a diagram showing the irradiation light amount distribution and light receiving sensitivity distribution measured using the configuration of FIG. 4, and FIG. 6 is a diagram showing still another embodiment of the reflection density measuring device of this invention. FIG. 7 is a diagram showing the irradiation light amount distribution and light receiving sensitivity distribution in the configuration of FIG. 6, and FIG. 8 is a schematic diagram of a conventional reflection density measuring device. In the figure, reference numeral 1 is a light projecting system, 2 is a light receiving system, 3 and 4 are bundle fibers, 3a and 4a are cutting surfaces, 5 is a sample, 5a is a measurement surface, and 6 is a convex lens system.

Claims

[Scope of utility model registration request]

In a reflection density measuring device that irradiates light onto the measurement surface of a sample and measures the concentration of the sample from this reflected light,
Optical fibers are used for both emitting light to the measurement surface of the sample and receiving light from this measurement surface, and the cut planes of these optical fibers are parallel to the measurement surface of the sample, and the optical fibers are parallel to each other. Reflection characterized in that a convex lens system that refracts both the light rays emitted from the cut surface of the optical fiber and the light incident on the cut surface of the optical fiber is disposed between the sample side cut surface and the measurement surface of the sample. Concentration measuring device.