Application of machine vision light sources in actual cases (I)
Bolt size detection
In this case, we used a backlight source for lighting detection.In bolt inspection, the application of backlight is mainly to improve the detection precision and accuracy. By placing the backlight behind the bolt and shining it toward the camera lens, the outline of the bolt can be made clearer in the image, making it easier to identify and detect. In addition, the use of backlight can also eliminate reflections and shadows on the bolt surface, further improving the image quality. This allows accurate size detection.
Character recognition detection
In this scenario, we use a high-angle ring light source for detection. The high-angle ring light can provide uniform lighting, reduce shadows and reflections, and is suitable for application scenarios that require high contrast, such as character recognition.In the semiconductor industry, tiny text and logos are essential for product tracking and quality control. Ring lights can provide uniform and high-brightness lighting, making these tiny texts and logos clearly visible, making them easier for machine vision systems to identify and detect.
PCB solder wire detection
In the electronics manufacturing industry, the quality of PCB solder wire has an important impact on the connection and overall performance of the circuit board. Ring light sources can provide uniform and high-brightness lighting, making the surface state and connection of the solder wire clearly visible, thus facilitating the machine vision system to detect the welding quality.
Surface roughness testing
Ring light source detects metal surface roughness. In metal processing, plastic manufacturing and other industries, surface roughness is one of the important indicators to measure product quality. Ring light source can highlight the three-dimensional information of the material surface, making the surface roughness clearly visible. Through the analysis of machine vision system, accurate measurement and evaluation of surface roughness can be achieved.
Leading Optoelectronics is an innovative enterprise focusing on the research and development, production and sales of visual light sources. It has a 3,000 square meter dust-free clean workshop and produces the following visual light sources:Large degree of freedom in shapeA machine vision light source is composed of many individual machine vision light-emitting tubes, so it can be made into more shapes than other light sources, and it is easier to design the shape and size of the light source according to the user's situation.long lastingIn order for the image processing unit to obtain accurate and repeatable measurement results, the lighting system must ensure that it can provide stable image input for a considerable period of time. The brightness of the machine vision light source will decay after 10,000 to 30,000 hours of continuous operation, but it is much better than other forms of light sources. In addition, using a control system to make it work intermittently can suppress the heat generation of the light-emitting tube and double its life.Fast response timeThe response time of LED light-emitting tubes is very short. The real meaning of response time is to ensure the working switching between multiple light sources or between different areas of a light source as required.Free choice of colorIn addition to the shape of the light source, another factor in obtaining a stable image input is the color of the light source. Even for light sources of the same shape, the images obtained will be very different due to different colors. How to use the technical characteristics of the light source color to obtain the best contrast image effect has always been the main direction of the development of optoelectronic visual light sources.The overall operating cost is very lowIf you choose a cheap product with no guaranteed performance, the initial investment savings will soon be offset by the daily maintenance and repair costs. Therefore, choosing a machine vision light source with a long life is very economical in the long run.
