Correct use of the color light box can not only make the measurement results more accurate, the color detection is more authoritative, but also help us to extend the life of the color difference meter to a greater extent. Therefore, our color detection personnel must pay attention to their habits when using the color matching light box. It is necessary and important to develop a good and correct color detection habit. Let us now discuss the correct operation of the light box.

1. Observation angle:

Observation angles will directly affect the review results. According to international standards, only two observation angles are available. They are:

a. Zero-degree light source, 45-degree observation (0 ° / 45 °)

   That is, the light source is irradiated on the test object from an incident angle of zero degrees (vertical), and the observer observes the test object from 45 degrees, as shown below: 

45 degree observation (0 ° / 45 °)

B, 45-degree light source, zero-degree observation (45 ° / 0 °)

In this layout, a specific 45-degree inclined table (45 ° T: H Table) must be used. The light source is used to illuminate the test object from 45 degrees, and the observer observes the test object from zero degrees (vertical). As shown below:

Zero degree observation (45 ° / 0 °)

2. Placement of test products

Regardless of the use of any of the above observation methods, it must be noted that the test sample should be placed in the middle of the light box as much as possible to reduce the influence of the external light source. In addition, it is important that when comparing two or more colors, you should also try not to overlap them, and it is better to compare them side by side in a color light box.

3.Lightbox maintenance

A complete maintenance plan can ensure that your color light box is in a standard state for a long time; if you use it carefully, you must stain the paint in the light box. If you find any stains or peeling paint, you should immediately send staff to correct or replace the inner wall plate. , And often need to check the lamp's use time or brightness, etc. These services can be provided by the seller.

The above is the guarantee for the correct and long-term use of the color light box. As long as the color detection results are measured in accordance with this procedure, the accuracy of the color test result is long, and the service life of the light box is also long. Therefore, operators using light boxes must pay attention to these details.