What are the characteristics of aspherical lens that spherical lens does not have
Time：
2022-12-13
Aspheric lenses are used to eliminate spherical aberration in a variety of applications, including barcode scanning, laser diode collimation, or OEM or R&D integration. The aspherical lens uses a single element design, which helps minimize the number of lenses in a multi lens optical fitting.
Aspheric lenses are used to eliminate spherical aberration in a variety of applications, including barcode scanning, laser diode collimation, or OEM or R&D integration. The aspherical lens uses a single element design, which helps minimize the number of lenses in a multi lens optical fitting.
Aspheric lens can reduce spherical aberration. The standard spherical lens can never reach the precise focusing level provided by the aspherical lens. The essence of the irregular shape of the aspheric surface is to enable it to manipulate multiple wavelengths of light more accurately at the same time, so as to obtain clearer images.
The aspherical lens can correct the bending equiaxed aberration of the image field. In general, optical designers must "stop" their optical systems to physically exclude the outermost area of the lens, which will produce image distortion near its edges. Because the aspheric design can better correct the incident light to the focus, the available aperture of the lens is increased, which can provide greater luminous flux.
One of the greatest benefits of using an aspherical design is that it reduces the total number of lenses required to obtain a given result. A single aspheric lens can provide the same accuracy as multiple standard lenses used in series before, reducing the overall weight, size, and even the cost of the final design.
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