Not every product looks so uniform and flat. Products with irregular shapes, as well as reflective and fluorescent products, also require color detection and control. This is a multi angle colorimeter that can perform more complex measurements as needed. In fact, multi angle color measurement colorimeters are mostly developed for color control of metal paint. We know that many products in industry are metal paint colors, and measuring colors with ordinary colorimeters is not accurate because of their high reflectivity. However, products such as automobiles, household appliances, and hardware have very high color requirements, so the development of multi angle color measurement colorimeters is also beyond doubt.
Many standards objectively describe the color measurement of multi angle colorimeters as the color measurement of the fastest flashing topcoat. Generally, the results of data analysis show that if you want to measure the color of metallic paint well, at least 3 observation angles are needed, and 5 are generally the best. To understand the color measurement of metallic paint, we need to be familiar with a keyword: adverse reflection angle. Adverse reflection angle refers to the observation angle measured from the mirror reflection direction of the light source in the same horizontal plane.
Usually, the formula for calculating color difference using the colorimeter we use is represented by data △ L *, a *, b *, or L *, C *, h *, with △ representing the total color difference. However, this is within the allowable range of color data differences. For the angles of adverse reflection angle and brightness/dark transition angle, they have already exceeded this range. Therefore, using this method to detect and analyze obvious results is unreliable. Therefore, scientists are allowed to develop multi angle color difference meters based on industrial needs and measurement ranges. This colorimeter brings groundbreaking benefits to products such as appliances and cars that have very strict color requirements and are difficult to measure.
The purpose of developing a multi angle colorimeter is to capture the complete trajectory of pigment color changes caused by light interference. Moreover, the entire measurement program is reliably used in industrial use, and the measurement is convenient, fast, and suitable for color detection and control in large-scale production. Therefore, the widespread use of multi angle color difference meters is reasonable and inevitable. It does not know how many manufacturers meet the needs of metal color detection.