Analysis of factors affecting the imaging quality of HD industrial lenses

The era of high-definition has arrived, and as an optical system component, industrial lenses should naturally keep up with the times. For industrial lenses, high-definition lenses refer to megapixel lenses, which have higher definition, higher spectral correction capabilities, and stronger spectral transmission capabilities than ordinary lenses. A good industrial lens will have a good manifestation in terms of resolution, sharpness, depth of field, etc., especially for high-definition industrial lenses. So what factors can affect the imaging quality of high-definition industrial lenses, this article will Analyze from three aspects of manufacturing material, process and technology.

Influencing factor one: material

In the product manufacturing process, the choice of materials often directly affects the final product quality, as is the case with high-definition industrial lenses. At present, the most common lenses in China are mainly glass lenses, composite lenses, and resin lenses. Lenses of different materials are suitable for different applications. For example, in monitoring applications, glass lenses are the best lens material because resin and composite lenses tend to age and deform under high temperature and exposure conditions. The best material suitable for the application can make the lens play the biggest role in the imaging process, and the unsuitable material will directly reduce the quality of the lens, thereby reducing the imaging quality.

Influencing factor two: process

Different product manufacturing processes are different, and even the same product will have different manufacturing processes, and products manufactured by different processes will naturally have corresponding differences. Coatings have a great role in color reproduction and processing of polarized light and polarization, but there are multiple coating processes for lenses. Then, different coating processes will make industrial lenses different in color reproduction and polarized processing. In addition, the coating process also directly affects the transmittance of the lens, that is, the transmittance of the lens lens, and the size of the transmittance directly affects the definition of the lens, especially the high-definition industrial lens in low-light Imaging quality.

Influencing factor three: Technology

Aspheric technology is an important factor that affects the sharpness of the lens, especially the sharpness of the edges. Aspheric lenses can effectively increase the amount of light transmitted at the edge of the lens and effectively correct the aberration blur caused by spherical lenses. At present, the commonly used aspheric surface manufacturing processes mainly include two methods of applying a grinding process to the edge of the glass lens and directly coating the glass surface. For high-definition industrial lenses, aspheric technology is one of the keys to ensuring high-definition imaging.

    Machine vision system is mainly composed of image acquisition and image processing. The image acquisition part also includes light source, lens, camera and other components. These components each play an important role in the imaging process of machine vision technology. System "members". As we all know, the basic function of the lens is to transform the light beam. Therefore, in the machine vision system, the main role of the lens is to image the target on the photosensitive surface of the image sensor of the camera. Implementation has a direct impact.