The optical lens illumination system is one of the key parts of the machine vision system. The machine vision VUV, UV and IR grade MgF2 optics source directly affects the quality of the image, which in turn affects the performance of the system. Its importance cannot be overemphasized in any way. A good lighting design allows us to get a good image, which improves the resolution of the entire system and simplifies the calculation of the software. Unsuitable lighting can cause many problems.
The purpose of lighting is to enhance contrast. In a machine vision image, contrast represents the quality of the image signal, which reflects the difference between the two regions, such as the difference between the object and the background. Therefore, the *** step of designing the illumination of the source is to determine the difference between the regions, and then use the wholesale infrared and broadband BaF2 optics source to highlight these differences.
At the heart of the machine vision system is image acquisition and processing. All information comes from the image, and the quality of the image itself is critical to the entire vision system. The optical lens is an important factor affecting the image level of the machine vision system, because it directly affects the quality of the input data and at least 30% of the application effect.
The proper light source illumination design can ideally separate the target information from the background information in the image, which can greatly reduce the algorithmic difficulty of image processing and improve the accuracy and reliability of the system. Conversely, if the light source is not properly designed, it will result in half the effort in image processing algorithm design and imaging system design. Up to now, there is no universal machine vision lighting device, so for each specific case, it is necessary to design a suitable lighting device to achieve the effect. Therefore, the success or failure of the design of the light source and optical system is the primary factor determining the success or failure of the system. In machine vision systems, the role of the light source is at least the following:
1. Illuminate the target and increase the target brightness;
2. Forming an imaging effect that is most advantageous for image processing;
3. Overcome ambient wholesale large size infrared Silicon optics interference to ensure image stability;
4. Used as a tool or reference for measurement
In a machine vision system, it is important to get a high quality, manageable image. The success of the system must first ensure that the image quality is good and the features are obvious. The failure of a machine vision project was mostly due to poor image quality and insignificant features. To ensure a good image, you must choose a suitable optical lens.