JPS61170636A - Colorimetric instrument for transmission - Google Patents
Colorimetric instrument for transmissionInfo
- Publication number
- JPS61170636A JPS61170636A JP1088085A JP1088085A JPS61170636A JP S61170636 A JPS61170636 A JP S61170636A JP 1088085 A JP1088085 A JP 1088085A JP 1088085 A JP1088085 A JP 1088085A JP S61170636 A JPS61170636 A JP S61170636A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transmission
- transmitted light
- color
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/532—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke with measurement of scattering and transmission
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は測色器に係シ、特に観察方向によって視感によ
る色の異なる物体の測色に好適な透過用測色器に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a colorimeter, and more particularly to a transmission colorimeter suitable for measuring the color of an object whose color visually differs depending on the viewing direction.
従来の測色器Ｈ１ＪＩＳ Ｚ８７２２ ｒ物体色の測
定方法」に規定するように、正透過を含み、あらゆる方
向の拡散光を集めて平均化する方法で、観測する方向で
色が変って見える物体の色の測定には、適さないという
欠点があつ九。Conventional Colorimeter H1JIS Z8722 rMeasurement method of object color is a method that collects and averages diffused light from all directions, including specular transmission, to measure objects whose color appears to change in the direction of observation. One drawback is that it is not suitable for measuring color.
一方、散乱の測定に於いては、正透過方向と他の方向の
透過光の強さの比を測定する対比散乱度測定法が提案さ
れているが、この場合の測定値は視感透過率によシ求め
られ、色に関係する分光分布又は、三刺激値によるもの
でなかった。On the other hand, in the measurement of scattering, a contrastive scattering measurement method has been proposed that measures the ratio of the intensity of transmitted light in the specular transmission direction and in other directions, but the measured value in this case is the luminous transmittance. It was not determined by spectral distribution related to color or tristimulus values.
本発明の目的は、従来の測色器および散乱測定器の欠点
を補い、観測方向によって色が異なって見える透明物体
および透過物体、例えば、プラスチック樹脂、ガラス、
表面にテスクチャのめるもにある。The purpose of the present invention is to compensate for the shortcomings of conventional colorimeter and scatterometer, and to use transparent and transparent objects whose colors appear different depending on the observation direction, such as plastic resin, glass, etc.
There are also textures on the surface.
一般に実在する物体の拡散透過光が、均等拡散である場
合はまれで、観察方向により、透過強度の異なるものが
多いため、観察方向によって色が異なって見える場合が
ある。特に表面にテクスチャのある透過物体や内部に異
物の混入している透過物体は正透過方向と、その近傍と
に集中していることか多い。これらの色を判定するには
、正透過方向とそれと異なる方向で測色し、両者の対比
から色を判別することが必要である。In general, it is rare for the diffusely transmitted light of a real object to be uniformly diffused, and the transmitted intensity often differs depending on the viewing direction, so the color may appear different depending on the viewing direction. In particular, transparent objects with textured surfaces or foreign objects mixed inside are often concentrated in the normal transmission direction and in the vicinity thereof. In order to determine these colors, it is necessary to measure the color in the specular transmission direction and in a different direction, and to determine the color from the comparison between the two.
以下、本発明の実施例を図によって説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図に、本発明の一実施例を示す構造の概念図で、試
料１を光源２により一方向よシ照明する。FIG. 1 is a conceptual diagram of a structure showing an embodiment of the present invention, in which a sample 1 is unidirectionally illuminated by a light source 2.
試料よりの透過光を、正透過方向に配置され九ライトガ
イド４で受光し、分光測光器３に導いて分光測色する。The transmitted light from the sample is received by nine light guides 4 disposed in the specular transmission direction, and guided to a spectrophotometer 3 for spectrophotometry.
次に、ライトガイドを、正透過方向よシ外れた方向に配
置し、その方向の透過光を分光測色し、両者の測色値を
対比して試料の色を判定する。本実施例によれば、正透
過方向の色に契機をもつ物体色の判定が確実になるとの
効果がある。Next, the light guide is placed in a direction away from the normal transmission direction, and the transmitted light in that direction is spectrophotometrically measured, and the color of the sample is determined by comparing the two colorimetric values. According to this embodiment, there is an effect that it is possible to reliably determine the object color based on the color in the specular transmission direction.
第２図に、本発明の他の一実施例を示す概念図で、第１
図と同様に照明された試料よシの透過光を正透過方向に
置かれた同軸形ライトガイドの中心光用ライトガイド５
と、正透過方向を外れた方向にある周辺光用ライトガイ
ド６で受光し、夫々を分光測光器により分光測色するも
ので、その効果は前述のものと同一である。FIG. 2 is a conceptual diagram showing another embodiment of the present invention.
Light guide 5 for the center light of a coaxial light guide placed in the specular transmission direction for transmitting light from the illuminated sample as shown in the figure.
The light is received by the peripheral light light guide 6 located in a direction away from the regular transmission direction, and each is subjected to spectrophotometry using a spectrophotometer, and the effect is the same as that described above.
本発明によれば、観察方向によって色が異なって見える
物体の色、特に正透過方向の近傍にその物体の色の特徴
をもつ場合の色の判定が確実に行なわれるという効果が
ある。According to the present invention, it is possible to reliably determine the color of an object whose color appears different depending on the viewing direction, especially when the object has color characteristics near the specular transmission direction.
第１図は、本発明の一実施例を示す概念図、第２図は、
本発明の他の実施例を示す概念図である。FIG. 1 is a conceptual diagram showing one embodiment of the present invention, and FIG. 2 is a conceptual diagram showing an embodiment of the present invention.
FIG. 3 is a conceptual diagram showing another embodiment of the present invention.
Claims (1)
物体を１方向より複数の波長を含む光で照射し、正透過
方向へ透過する透過光と、正透過方向より外れた方向へ
透過する拡散透過光とを夫々、分光測色方法によつて測
色し、比較することを特徴とする透過用測色器。1. In a colorimeter that measures the color of an object due to transmission, a transparent object is irradiated with light containing multiple wavelengths from one direction, and the transmitted light is transmitted in the normal transmission direction and the transmitted light is transmitted in a direction away from the normal transmission direction. A transmission colorimeter characterized by measuring and comparing the colors of diffused transmitted light and diffused transmitted light respectively using a spectrophotometric method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1088085A JPS61170636A (en) | 1985-01-25 | 1985-01-25 | Colorimetric instrument for transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1088085A JPS61170636A (en) | 1985-01-25 | 1985-01-25 | Colorimetric instrument for transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61170636A true JPS61170636A (en) | 1986-08-01 |
Family
ID=11762637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1088085A Pending JPS61170636A (en) | 1985-01-25 | 1985-01-25 | Colorimetric instrument for transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752635A (en) * | 1985-12-25 | 1988-06-21 | Toyo Soda Manufacturing Co., Ltd. | Halogen-containing polyacrylate derivatives |
-
1985
- 1985-01-25 JP JP1088085A patent/JPS61170636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752635A (en) * | 1985-12-25 | 1988-06-21 | Toyo Soda Manufacturing Co., Ltd. | Halogen-containing polyacrylate derivatives |
| US4822721A (en) * | 1985-12-25 | 1989-04-18 | Toyo Soda Manufacturing Co., Ltd. | A method of image-wise exposing and developing halogen-containing polyacrylate derivatives |
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