Does the manufacturer of spherical lens analyze the difference between spherical and aspherical?
The main difference between a spherical mirror and an aspherical surface is the problem of radians. The radian of spherical mirror produced by manufacturer of spherical lens will be larger than that of non-spherical mirror, and the spherical mirror will look curved to the naked eye.
The so-called spherical and aspherical lenses mainly refer to lenses for lenses (various successive lenses, microscopes, etc.) and glasses (including contact lenses). In terms of the geometric appearance of manufacturer of spherical lens, they are spherical lenses and aspherical lenses. The difference in geometrical shape determines the difference in refraction direction of parallel incident light, which affects the imaging effect. The quality of the fruit.
manufacturer of spherical lens show the lens as spherical radian, its transverse plane is also arc-shaped. When different wavelengths of light, with parallel optical axes, incident at different positions on the lens, in the film plane (vs. The center and the focal point of the lens can not be focused into a point on the plane perpendicular to the focal point, resulting in aberrations, which affect the quality of the image, such as reduced clarity and deformation. Common lenses are made of spherical lenses. In order to solve this imaging problem, manufacturer of spherical lens will correct the aberration by adding lenses inside the mirror, but this may cause the reverse effect. In addition to increasing the chance of light reflection in the mirror and causing light flares, additional lenses will also increase the volume and weight of the lens.
