Spherical Lens

 The concave spherical lens is a lens with a fixed radius of curvature on the surface of the lens within the aperture of light. spherical lenses are mainly divided into convex lenses, plano-convex lenses, plano-concave lenses, concave-convex lenses, double-concave through, etc., can be customized according to customer drawings or sample processing to meet customer's different application needs.

 

Types of spherical lens

 

Plano Convex Lens

ATOptik can process ultra-high precision optical plano-convex lenses with ultimate surface accuracy up to λ/20 and a maximum diameter of Ø150mm.

 

Plano Concave Lens

ATOptik specializes in manufacturing high-precision plano-concave lenses, particularly those made from visible-light glass (e.g., BK7, fused silica) with customizable specifications.

 

Double Convex Lens

The convex spherical lens is a convex lens. The convex lens includes an incident surface and an radiating surface. It is characterized by a longer focal length at the middle of the lens surface and a shorter focal length at the end of each lens surface. Lenticular lenses are mainly used to focus light from point sources or to transmit images to other optical systems.

 

Double Concave Lens

Double concave lens is concave on both sides, thin in the middle and thick in the edge, used to increase the divergence of converging rays. The focal length is negative, causing parallel incident rays to diverge outward.

 

Meniscus Lens

Positive meniscus lenses are designed to minimize spherical aberration and can be used alone to achieve a minimum converging spot, or when combined with another lens to reduce the focal length and thus increase the numerical aperture.

 

Achromatic Lens

Achromatic Lenses are made of two concave and convex lenses with different refractive indices and different dispersion rates, which can minimize or eliminate color aberrations.

 

Ball Lens

Ball lenses as the name suggests are complete spheres.Ball Lenses are widely used in optical measurement systems,projection&imaging optical systems,laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling.

 

Half Ball Lens

Although spherical lens and hemispherical lens belong to the category of optical lens, they have their own characteristics in structure and application.

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Comparing Spherical and Aspherical Lenses: Pros and Cons

The surface of a spherical lens looks like part of a sphere or cylinder, and the curves are the same throughout the surface. If a straight line is drawn to follow the curve, it will form a circle. Because of the simplicity of the design, spherical lens designs are usually cheaper.

 

Aspherical lens, from the center of the lens to the edge, the radius of curvature constantly changes, compared with the spherical lens, aspherical lens can be designed thinner, lighter, can effectively eliminate spherical lens aberration and spherical aberration, optimize the design of the use of the system, to provide better imaging effect, if you want to reduce the spherical aberration in the image, you should use aspherical lens.

 

FAQS OF SPHERICAL LENSES

Q

What materials are commonly used to make spherical lenses?

A

Covering most of the materials from UV-visible-infrared, such as: visible glass, ultraviolet quartz, silicon, ZnSe, Sapphire and so on.

 

Q

What are the advantages of using spherical lenses in optical systems?

A

1. low production cost ‌ : The uniform shape of the spherical lens ensures a simple manufacturing process and a shorter production time, so the production cost is low ‌.

 

2. reduce spherical aberration ‌ : by selecting the effective aperture, the spherical aberration can be reduced, thus improving the imaging quality ‌

 

3. combination use to improve image quality ‌ : by combining multiple spherical lenses, the image quality can be further improved, although the space conditions of the optical system ‌ need to be considered.

 

Q

How are spherical lenses manufactured?

A

First of all, the suitable material is selected and cut to the quoted size, and then the process of rough grinding, fine grinding, polishing, coating, gluing, assembly, etc.

 

Q

What role do spherical lenses play in photography and videography?

A

It is mainly used to capture images and convey information. ‌ Spherical lens is one of the most common lens types, its design is simple, low cost, widely used in a variety of photography and video equipment. The spherical lens is characterized by a spherical surface, which allows the light to focus more evenly as it passes through the lens, resulting in a clear image. However, spherical lenses also have some disadvantages, such as edge distortion and chromatic aberration problems, which may affect the quality of the image in high-quality photography and video.

 

For sphere lens price, contact us.

 

If you are looking for a reliable optics manufacturing company, please contact us.

 

 


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