How to measure the uniformity of the light guide plate
Sep 25, 2018
In the process of customizing the light board, the customer will require the uniformity of the light guide plate to reach a certain value, so how to measure the uniformity? What is the uniformity of the product to be qualified?
The uniformity is generally in the form of a nine-square grid, dividing the light guide plate into nine zones, and measuring the illumination of each zone. The testing value=Min-value/Max-value
Measuring the uniformity of the light guide plate, the reflective paper will be placed under the light guide plate, and the measured data can be more accurate by using the light filling and collecting light.
