Publish Time: 2022-09-14 Origin: Site
1. Color Space: there are five complete color spaces available: CIE X Y Z; CIE Yxy； CIE L * a * b *； CIE L * C * h； and Hunter L a b. Each of these scales consists of three numbers, but each number is determined in a unique way.
2. CIE Light Source: the measurement of color by colorimeter is also affected by the type of light used. The colorimeter can use many light sources, including a (tungsten), F02 (cold white fluorescent lamp), C (average sunlight), and D65 (noon sunlight).
3. CIE Standard Observer Angle: there are two types of standard observers: 2 degrees in 1931 and 10 degrees in 1964. Although there are significant similarities between them, they may also affect the differences in color data.
4. Instrument LightingMode: Currently, the common lighting modes of chromatic aberration instruments are 45 ° / 0 ° or 0 ° / 45 ° instruments and diffuse / 8 ° spherical instruments. Which one you choose will largely depend on the type of sample you are using; In some cases, this also depends on whether you want to measure appearance or color separately.
5. Sample Preparation: proper preparation of samples is an important part of obtaining accurate color data. This is also an important aspect of measurement inconsistency caused by human factors.
6. Sample Measurement: sample measurement includes many factors, including sample positioning mode, sample view area, measurement mode and average number of sample readings. As with sample preparation, measures must be taken to minimize sample changes, including the use of standardized procedures or instruments, to minimize or eliminate the chance of sample changes.