The difference between high precision ground spherical lens and aspheric lens

A spherical lens refers to a constant curvature from the center of the lens to the edge, while a non-spherical lens has a continuous curvature from the center to the edge.

The "curvature of the spherical surface" of the spherical lens is constant, that is, the front and rear surfaces of the lens are part of the spherical surface respectively. Each surface can be convex (convex outward from the lens), concave (concave into the lens), or "flat" (flat). The line connecting the spherical center points of the front and back surfaces of the lens is called the optical axis of the lens. In almost all situations, the optical axis of the lens passes through the physical center of the lens. The radius of curvature of the aspheric lens changes with the central axis, which has a better radius of curvature and can maintain good aberration correction.

Huizhou Yisu Photonics has a complete optical cold processing production line, which can produce customized optical prisms and optical lenses of various conventional and unconventional sizes to meet various high-precision production requirements of customers and provide a complete optical vacuum coating process to achieve optical Customized service for integrated glass production.

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