What Are Optical Spherical Lenses and Their Types and Applications?

by Saniya Zeenat Writer

Spherical lenses are common optical lenses which are widely used in optical imaging, laser detection, life science, optical illumination, and other related fields. Sometimes, it comes challenging to choose from a variety of choices, specifications and lenses that fit your application. This article will help you to attain a better understanding of spherical lenses and compare their available options.

Spherical lenses are a thick transparent glass which is restricted by two spherical surfaces. They are used in a wide range of applications to accumulate, focus and diverge light. There are plenty of features to take into consideration when selecting your lenses such as shape, material, transmission and other mechanical properties.

Basically, spherical lenses are an optical component through which ways to light join or diverge before transmittance. You can find a wide range of spherical lenses in China such as converging and diverging lenses for correcting chromatic aberration. You can use such optical glass components for infrared, spectral and ultraviolet fields like optical communication, life science, optical lighting, laser detection, and many more.

Types of Spherical Lenses

1. Plano-Convex Lenses

Plano-convex lenses are the perfect option for concentrating on parallel rays of light to a single point. These can be used to focus, gather and collimate illumination. The asymmetry of these lenses reduces the spherical aberration in conditions where the image or object is positioned at an uneven distance from the lens.

2. Plano-Concave Lenses

Plano-concave lenses are the right choice when object and image are at conjugate ratios, less than 1:5 and greater than 5:1 to reduce spherical aberration. It has negative spherical aberration and can be used to balance aberrations produced by other lenses.

3. Meniscus Lenses

Meniscus lenses are specially designed to reduce spherical aberration and are mainly used in applications which contain less than 2.5 radii. They are thicker from the center as compared to the edges. It is used to shorten the focal lengths and raise the numerical aperture of an optical mechanism when united with other lenses.

4. Bio-Convex Lenses

Using bio-convex lenses are the best choice when the image and object are at equal or nearly equal distance from the lens. When image and object are equal, distortion, chromatic, blackout also reduces along with spherical aberration. Similar to plano-convex lenses, they have positive focal length and focus parallel rays of light to a point, thereby minimizes spherical deviation.

Conclusion:

There are a variety of spherical lenses available in different shapes and sizes where you can choose from in order to reduce spherical aberration. They are classified into plano-concave lenses, plano-convex lenses, meniscus lenses, and much more. You can easily find spherical lenses in China to focus, collect and diverge light for various fields like life science, optical imaging, laser detection, optical communication, and much more.