Color measurement commonly used instrument measurement applications

According to different objects measured by color management, the commonly used instruments include transmission densitometers, plate measuring instruments, reflection densitometers, integrating sphere spectrophotometers, and multi-angle spectrophotometers.

Transmission Density Meter

After the light source hits the film, some of the light is reflected, scattered and absorbed, and the other part passes through the film. The part that passes through the film is transmission. The instrument receives this part of the light, compares it with the incident light, and obtains the transmittance, and then calculates the transmission density and the dot area.

Plate measuring instrument

The measuring principle of the printing plate is generally a built-in digital camera in the instrument. When measuring, according to the reflection and absorption of the light on the printing plate surface, the dot area, network line, and net angle are calculated.

Multi-angle spectrophotometer

Automobile manufacturing industry adds mica, pearlescent powder and other materials to automotive coatings, and its sensory effects will change with the observation angle. For this reason, X-Rite developed a portable multi-angle spectrophotometer. He can simultaneously measure from 15 different angles such as 15°, 25°, 45°, 75°, and 110°, and can objectively, accurately, and completely evaluate the colors of metal, pearlescent and special effect picking, and ink at different angles. Variety.

Glossmeter

The gloss of the sample also affects the visual appearance of the color. The gloss meter emits incident light at an angle and collects reflected light from the mirror surface. The standard black glass has a gloss of 100 and other surface countermeasure data are compared with the result expressed as a percentage.