Group items tagged

What is aspherical camera lens When it comes to camera lenses, aspherical lenses are an unavoidable topic. Many people think that aspherical lenses are a symbol of high-end lenses, and almost all high-end lenses adopt aspherical designs.

In the world of optics, precision and clarity are the holy grail for professionals and enthusiasts alike. Among the many advancements that have been made, one stands out for its significant impact on improving optical performance: aspherical lens. These lenses are not just a technological evolution; they are a revolution in how we capture and view the world around us.

The gallium arsenide lens (GaAs lens) uses a single-point diamond ultra-precision multi-axis free-form surface processing machine tool, and is processed through ultra-high-precision single-point turning, grinding, measuring, ultra-high-precision polishing and other processes. Under precise control of the machine tool and processing environment, To achieve ultra-high precision processing in the plastic domain of optical aspheric surfaces, ultra-high precision correction polishing technology is used to polish the lens surface to achieve an infrared aspheric lens with an optical aspheric surface shape accuracy ≤ 0.1 micron and a surface roughness Ra ≤ 0.01 micron.

Achromatic triplet lenses minimize Seidel aberrations, usually by gluing three lenses together or mounting three lenses in a housing. Suitable for measurement and imaging applications such as projection, photography, fluorescence microscopy, image relay, inspection, spectroscopy, etc. After milling, fine grinding, grinding and polishing, the single lens in the glued lens can reach the optical surface accuracy ≤0.1 micron, and the surface roughness Ra≤0.01 micron. Three aspheric achromatic lenses are combined to form an achromatic triplet lens. The achromatic triplet lens is glued by using a centering device with a curing device with UV photosensitive adhesive for precision bonding and eccentricity testing.