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Difference Between Aspheric Lenses and Plano-convex Spherical Lenses

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Difference Between Aspheric Lenses and Plano-convex Spherical Lenses

(Summary description)Plano-convex Spherical Lenses are a sphere that uses a curvature over the entire surface as if cutting from a sphere. Non-spheres have different curvatures, such as cut from an ellipse. The main purpose of the aspheric surface is to solve the problem of spherical aberration, because the spherical focus of off-axis light is different, resulting in blurred vision. So, what is the difference between aspherical lenses and Plano-convex Spherical Lenses?

Difference Between Aspheric Lenses and Plano-convex Spherical Lenses

(Summary description)Plano-convex Spherical Lenses are a sphere that uses a curvature over the entire surface as if cutting from a sphere. Non-spheres have different curvatures, such as cut from an ellipse. The main purpose of the aspheric surface is to solve the problem of spherical aberration, because the spherical focus of off-axis light is different, resulting in blurred vision. So, what is the difference between aspherical lenses and Plano-convex Spherical Lenses?

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Plano-convex Spherical Lenses are a sphere that uses a curvature over the entire surface as if cutting from a sphere. Non-spheres have different curvatures, such as cut from an ellipse. The main purpose of the aspheric surface is to solve the problem of spherical aberration, because the spherical focus of off-axis light is different, resulting in blurred vision. So, what is the difference between aspherical lenses and Plano-convex Spherical Lenses?

Plano-convex Spherical Lenses from China manufacturer
Introduction to aspheric and spherical lenses. What are Plano-convex Spherical Lenses? Both sides of a spherical lens are spherical. The curvature of each surface is uniform, with a single radius of curvature. The processing equipment is simple, the price is cheap, the lens is thick, and there is an aberration, which will cause obvious problems such as unclear image, deformation around the object, and a narrow field of view.
What are aspherical lenses? As the name suggests, aspheres are not Plano-convex Spherical Lenses. Geometrically, there is no uniform spherical radius. The refraction is called the radius of curvature. Up to now, the design of aspherical lenses refers to the continuous change of the diopter from the optical center area to the edge, and the change curve is a parabola.
These determine that the luminosity of the lens gradually decreases from the optical center to the periphery. , Compared with Plano-convex Spherical Lenses, aspheric cylindrical lenses are composed of photopolymer and glass optical lenses. The polymer is coated on only one surface of the double lens, so it can be fabricated quickly in a short period of time, offering flexibility similar to typical multi-element assemblies.
Through the above introduction and analysis of the Difference Between Aspheric Lenses and Plano-convex Spherical Lenses, hope it helps you.

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