Our patent, US10565700B2, granted on February 18, 2020, represents a pivotal advancement in digital color assessment technology. This innovation has revolutionized the way colors are measured and assessed in industrial applications, particularly for large or complex workpieces where precise color calibration is essential.
Our invention features a highly specialized enclosure system designed with a double-layer wall. The outer wall provides robust protection against environmental factors such as dust and fluids, while the inner wall incorporates a gradient reflectance change that ensures consistent lighting conditions throughout the enclosure. This is critical for accurate color measurement, as it eliminates unwanted reflections and hot spots that could distort the results.
The system uses multiple light sources, which are symmetrically arranged around the enclosure. These light sources are divided into independently controllable segments, allowing precise control over the angle and intensity of illumination. This segmented LED design ensures that the workpiece is evenly illuminated from multiple angles, providing superior accuracy in color detection, especially for workpieces with complex geometries.
At the core of the system is a camera equipped with a pinhole lens that captures high-fidelity images of the workpiece. These images are processed using our advanced image processing circuit, which compares the captured colors against a custom color calibration chart. This chart is tailored specifically for each workpiece, ensuring that the color assessment is highly specific to the product’s needs.
Additionally, the system allows for backlighting and diffuse lighting options, enabling the detection of both diffuse and specular reflections. This versatility makes it suitable for inspecting both matte and shiny surfaces, from flat workpieces to spherical or irregularly shaped objects.
In summary, this patent enables us to offer a highly customizable digital color assessment solution that is both precise and adaptable, ensuring the highest levels of color accuracy for various industries, from manufacturing to food processing. This technology sets a new standard in the field, providing unmatched reliability and performance in color inspection systems.