An aspherical lens is a special type of lens whose refractive surface is a curved surface of an aspherical surface. Compared to spherical lenses, non spherical lenses have a better curvature radius and can maintain good aberration correction to achieve the required performance. So what are the advantages of non spherical lenses in lenses?
Reduce ball difference
Spherical aberration is a common problem in the imaging process of spherical lenses, where light rays refracted by the lens cannot focus on the same point at different distances, resulting in blurred image edges. Non spherical lenses can effectively reduce or eliminate spherical aberration by adopting a non spherical design, ensuring consistent image clarity from center to edge.
Improve image quality
Due to the ability of aspherical lenses to reduce aberration, including spherical aberration, coma, etc., they can significantly improve the resolution and contrast of images. Both the center and edges of the image can maintain high sharpness and clarity, making the captured photos and videos more vivid and realistic.
Simplify lens design
To correct aberrations, traditional spherical lens systems may require the use of multiple lens elements. Non spherical lenses, on the other hand, can achieve the same correction effect through a single or a few lens elements, thereby simplifying the design of the lens. This not only reduces the cost of the lens, but also helps to reduce its volume and weight.
Expand perspective
The application of aspherical lenses enables the lens to design a wider viewing angle, especially in ultra wide angle lenses. Traditional spherical lenses in ultra wide angle design can cause deformation and blurring of image edges due to increased aberration. Non spherical lenses can effectively correct these aberrations, allowing ultra wide angle lenses to capture wider and clearer images.
Improve lens adaptability
The design flexibility of aspherical lenses allows the lens to adapt to a wider range of shooting scenes and lighting conditions. Whether in low light environments or high contrast scenes, aspherical lenses can provide excellent imaging effects. This makes the lens more adaptable and versatile, able to meet more shooting needs.
Improve zoom performance
In zoom lenses, aspherical lenses also play an important role. By adopting a non spherical design, the zoom lens can maintain high imaging quality at different focal lengths, reducing the impact of aberration and distortion. This enables the zoom lens to maintain a more stable and reliable imaging effect during the shooting process.
The above is an answer to the advantages of non spherical lenses in lenses. We hope it will be helpful to you. If you have any questions, please feel free to consult or leave a message online.
