SiChuan JUKA Optical Technology

A meniscus lens is a lens with two spherical surfaces, convex on one side and concave on the other. The lens provides a smaller beam diameter to reduce beam waste and spherical aberration. When one meniscus is combined with another lens, the focal length is shortened and the numerical aperture of the system is increased. This reduces image distortion and improves image resolution.

There are two types of meniscus lenses:

• Positive meniscus lens

The positive meniscus lens is used for applications requiring small focal numbers (less than 2.5). For focal lengths between 2.5 and 10, a meniscus lens minimizes spot size and improves image quality. The concave side curvature of a positive lens is smaller and the convex side curvature is larger.

Frequently used for beam focusing applications

Minimizes the increase in spherical aberrations for multi-element systems

• Negative meniscus lens

The negative meniscus lens is used for applications using infrared materials with a high refractive index. These lenses serve as substitutes for other negative lenses with greater curvature on the concave side and less curvature on the convex side. They are used in beam spreading applications where minimal spherical aberration is required.

Frequently used for beam expanding applications

Minimizes the increase in spherical aberrations for multi-element systems

Parameters

Oplens provide custom optical components, we can custom sizes and shapes. If you are interested in any of our products, please click here.

Oplens Plano-convex lens is an optical lens in which one side of the lens is flat and the other side is convex. The focal length of plano-convex is positive, mainly for the role of focusing. The collimating beam can be gathered on the rear focus or the point light source can be transformed into a collimating beam. Plano-convex lenses are widely used in optical display system, optical projection system, optical imaging system and laser measurement system.

Oplens can not only customize the plano-convex lens with common materials of N-BK7 (Shott) and fused silica, but also customize the plano-convex lens of any glass material.  

Parameters

Oplens is one of leading optical elements and spherical lens manufacturer. We insist on supply high precision optical products with consistent quality and professional serve.

You are welcome to contact us for customized plano-convex lenses.

A plano-concave lens is a lens that has a flat surface on one side and a concave surface on the other side. The focal length of a plane-concave lens is negative, allowing the beam to diverge.  Therefore, it can be used in optical system for beam expansion, light projection or to increase focal length.

Oplens can not only customize the plano-concave lens with common materials of N-BK7 (Shott) and fused silica, but also customize the plano-concave lens of any glass material.  

You are welcome to contact us for customized plano-concave lenses.

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A biconvex lens means that both surfaces of the lens are convex. Its focal length is positive and mainly for the function of focusing. It is commonly used in imaging relay system and object imaging at finite conjugate distance. The smaller the conjugate ratio is, the smaller the aberration will be.

Oplens can not only customize the common plano-convex lens of N-BK7 or fused quartz, but also customize the biconvex lens of any glass material.

You are welcome to contact us for customized biconvex lenses.

Parameters

Optical lenses or optical system is a complex device with high requirements, which demands not only the combination of high-precision optical lenses and optical mechanical parts, but also professional assembly environment to ensure their key arguments, such as cleanliness, coaxiality, focal length, distinguishability and other indicators, are not affected, so as to achieve the best optical performances of the end product. Because of this, Oplens set up its own assembly department in 2021, which not only improves our production line but also can better meet the needs of customers for lens assembly. If you don’t have such a lens assembly environment or inspection conditions, we are capable to help you in this respect.  

What Processes are Involved in Optical Assembly Manufacturing?

Optical assembly processes may include mounting, alignment, precise optical pathway placement, beam manipulation, focusing, optical bonding, and sonic welding techniques.

Typical Optical Component Assembly Work Includes:

Bonding glasses & filters into wheels

Laminating glasses & filters

Product labelling & identification

Gluing glass to glass components

Mounting in screw mounts and holders

Gluing glass to metal assemblies

Press fitting glass lenses into housings.

To outsource your lens assembly, contact our sales team who will advise you on your next move.

The biconcave lens, also named double concave lens, is usually made of flint glass and used for beam divergence. It’s focal length is negative but the parallel incident ray diverges outward. The two sides of the biconcave lens curvature radius can be equal or not. Combined with plano-convex lens, it is generally used in beam expanders, projection optical systems and optical viewers, etc.

Oplens can not only customize the common plano-concave lens of N-BK7 or fused quartz, but also customize the biconcave lens of any glass material.

You are welcome to contact us for customized biconcave lenses.

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If you are finding spherical lenses and aspherical lenses in china, we will be your best choose! We have our own factory, so we can give you a cheap price!