Application of illuminance meter in various scenarios in optical measurement
The surface illuminance of reflective charts is measured by the luminance meter as follows: Establishing a uniform light source environment is crucial in the realm of picture testing. In order to ensure that each measurement is uniform, the chart's surface illumination should be verified before to each test. We often utilize the four sides and the center point as the measurement points in the actual test in order to assure the consistency of the chart's surface. The chart surface homogeneity is then determined using the measurements that were taken. The better, the higher the homogeneity index. If the test requirements cannot be met, it is necessary to adjust the angle and distance of the supplementary light source, and re-measure with an illuminance meter to calculate the uniformity.
Avoid blocking the probe when measuring the illuminance at each test point. Standing on one side, the surveyor can reach out to the other. Note: The test chart's surface is vulnerable to damage. When taking measurements, move to the surface lightly without rubbing against the chart.
2. The reflected light box's illumination is determined by an illumination meter: We only need to position the probe at the location to be measured when using an illuminance meter to measure the light source environment. The measured value can then be shown in real time, making it simple for us to count the data from the light sources and manage the light source environment.
3. The transmissive chart's surface brightness is measured using the illuminance meter: The brightness of the chart surface needs to be verified in numerous instances during the image test. The illuminance meter of the brightness accessory can be added to easily test the brightness value of various tiles. For instance, we measured each tile's brightness during the camera's dynamic range test. The analysis software can then use it as an auxiliary document for upcoming picture analysis. The dynamic range is then examined using the collected data to get more accurate and trustworthy test findings.
