분광광계는 표본을 빛으로 조명하거나 빛을 통과하고 반사되거나 전송된 빛을 파장 범위에 기록합니다.이 데이터를 색상 좌표 (예: L*a*b*)로 변환하여 정확한 색상 평가와 표준과 색상 비교를 가능하게 합니다.

대량 생산 전에 항상 사전 생산 샘플;항상 선적 전에 최종 검사;

When detecting color differences, the first factors to consider when selecting a light source include its stability, directionality, lifespan, and the effectiveness of the ultimately obtained spectral curve. The illuminant of a colorimeter is a fixed bulb, such as a tungsten lamp，LED light or a long-life xenon lamp. However, for the same color sample, the results displayed by the instrument vary under different light sources. This is because different light sources cause different absorption and reflection of light on the sample, leading to differences in how both the human eye and the instrument perceive the color.

In general, the D65 light source is used in the application of coil steel inks for construction. The D65 light source is equivalent to average daylight. Most coil steel inks for construction are used outdoors, and sunlight is regarded as the standard light source in outdoor environments. For household appliance coil steel inks, due to their usage characteristics, they are mostly used indoors. Therefore, the A standard light source is adopted for color measurement of samples based on indoor lighting conditions. The A light source is a carefully specified tungsten light source. Other light sources, such as fluorescent light sources, can be used in many types of applications. For example, some textile factories use fluorescent light sources. Therefore, a reasonable light source should be selected as the mutually recognized measurement method based on actual usage conditions and user requirements. Once agreed upon by both parties, color measurement must be conducted under the same conditions. This helps reduce unnecessary systematic errors and human errors, achieving the optimal consistency in color measurement.

The 3nh high-precision spectrophotometric colorimeter adopts a combined LED light source with long lifespan and low power consumption, which includes UV (ultraviolet) and UV-excluded options. This design can meet the color difference detection needs of different users and supports the selection of multiple light source modes.

The LAB color space defines colors in a three-dimensional model: Lightness (L), red–green axis (a), and blue–yellow axis (b). It's a globally recognized standard supported by most modern color measuring devices. CIELAB is a standardized, device-independent system designed to map all visible colors that the human eye can perceive.

The LAB color space uses three values to define any color, each representing a specific dimension:

L (Lightness): Ranges from 0 to 100. It measures the brightness of the color, where 0 is pure black and 100 is pure white.
A (Red-Green Axis): Ranges from approximately -128 to +127. Positive values represent red tones, while negative values represent green tones.
B (Yellow-Blue Axis): Ranges from approximately -128 to +127. Positive values represent yellow tones, while negative values represent blue tones.

우리는 안개 미터의 적절한 작동 및 유지보수를 위한 사용자 설명서와 함께 고객에게 전문 교육을 제공합니다.사용 중에 문제가 있다면, 문제를 해결하는 데 빠르게 도움이되는 우리의 전문가에게 연락할 수 있습니다.

색상의 정확도는 분광광계와 같은 도구를 사용하여 표본 참조 표본과 샘플의 색상 (L*a*b*) 값을 비교하여 결정됩니다.변화는 ΔE로 측정됩니다.ΔE의 값이 작을수록 더 정확하고 대상 색상에 가까워집니다.