Spherical lenses differ significantly from aspherical lenses in a number of ways. First of all, in appearance, spherical lenses exhibit a noticeable spherical curve, while aspherical lenses are relatively flatter. This difference in appearance is mainly due to the difference in manufacturing process and design concept between the two.
In terms of manufacturing process, spherical lenses use the traditional spherical manufacturing process, that is, the lens is processed into a spherical shape through grinding and polishing. Aspherical lenses use a more advanced aspherical manufacturing process to achieve a smoother optical curve by precisely controlling the power of each part of the lens, thereby reducing distortion and distortion around the lens.
In terms of design concept, the design of spherical lenses mainly focuses on the diopter of the lens, while aspherical lenses pay more attention to the comfort and visual experience of the lens. Therefore, aspherical lenses are designed and manufactured with the physiological structure and visual habits of the human eye in mind, so that the wearer can achieve a clearer, more comfortable and natural visual experience when wearing aspherical lenses.
In addition to the differences in manufacturing processes and design concepts, there are also significant differences in optical properties between spherical and aspherical lenses. Because aspherical lenses are designed with more precise optical curves, they have a lower degree of distortion and distortion and a wider field of view. At the same time, aspherical lenses are also able to better correct optical problems such as spherical aberrations, improving the wearer's visual clarity and comfort.
In practical applications, aspherical lenses are widely used in the eyewear industry due to their obvious advantages in terms of optical performance and comfort. At the same time, with the improvement of consumers' requirements for the quality and comfort of glasses, the consumer demand for aspherical lenses is also increasing year by year. In contrast, traditional spherical lenses are gradually being eliminated from the market due to their high degree of distortion and distortion, narrow field of view and other problems.