How to choose the right optics

The choice of optical components directly affects the quality and application of the input data. Since there is no universal machine vision lighting device, for each specific application example, the corresponding lighting device should be selected to achieve the desired application effect. The lighting system is one of the key parts of the custom high purity LBO nonlinear crystal and is directly related to the success or failure of the system. A good lighting design can get a good image, which improves the resolution of the whole system and simplifies the calculation of the software. The unsuitable lighting will cause many problems. 1, illuminate the target, improve brightness 2. Used as a tool or reference for measurement 3. Overcoming ambient light interference to ensure image stability; 4. Forming an effect that is advantageous for image processing; Selection of optical components 1. Surface of the object: If the visual illumination of the machine is complicated, it is caused by the change of the surface of the object. If the surfaces of all objects are the same, it is not necessary to use different light source technologies when solving practical applications. However, due to the difference in the surface of the object, it is necessary to observe the surface of the object in the field of view and analyze the reflection of the incident light source. 2. Control reflection: If the reflected light can be controlled, the image can be controlled. When it comes to high quality Chinese BIBO nonlinear crystal design, the important principle is to control where the light source is reflected to the lens and reflected. Optical component design is the study of reflection. In vision applications, when observing an object to determine what kind of light source is needed, first figure out how to make the object appear. How can I apply a light source to reflect the necessary light into the lens to get the appearance of the object? 3. The light source can be predicted: When the light source is incident on the surface of the object, the reflection of the optical component is predictable. The light source may be absorbed or reflected. Light may be completely absorbed (black metal material, the surface is difficult to illuminate) or partially absorbed (causing color changes and brightness differences). Light that is not absorbed is reflected, and the angle of the incident light is equal to the angle of the reflected light. This scientific law greatly simplifies the customized large size and special shape CaF2 optics because the ideal effect can be achieved by controlling the light source. A good image has the following conditions: 1. The contrast is obvious and the boundary between the target and the background is clear 2. The background is as light and uniform as possible, and does not interfere with image processing; 3. Color-related also requires true color, moderate brightness, and no overexposure. 4. The overall brightness is uniform, and the overall uneven gradation difference does not affect the image processing; Since the photodiode cannot detect an accurate color, the color information is reproduced by being combined with a color filter or a prism. The color information can be obtained by using the primary color mode of the red (R), green (G), blue (B) primary color filter or by using cyan (C), magenta (M), yellow (Y), green (G) The four-color filter is obtained by calculating the complementary color filter mode for creating an image.