Spherical lenses
Spherical lenses are optical components with surfaces of a constant radius. Typical usage is for focusing, reducing or expanding light-waves.
As a leading optics manufacturer, MLOPTIC offers a broad range of precision grade optical lenses with outstanding specifications. We have a variety of unique and proprietary manufacturing technologies including grinding, honing, die sinking, and etching as well as the ability to exchange design data with you during development.
Most of our optical lenses are customized. We are very competitive both in producing small quantity and large volume.
Manufacturing Capability
| Dimensions | ∅2 to ∅500 mm, convex and concave |
| Surface quality | 10/5 |
| Form error (PV) | λ/20 |
| Slope Error | 0.1mard / 1mm |
| SURFACE Roughness | Ra＜0.4nm @ / 0.1 nm simple length |
| Center thickness | ±0.005mm |
| Diameter tolerance | ±0.005mm |
MLOptic can offer the following spherical lenses
Planoconvex lenses have one plane surface and one convex surface. This kind of lenses has positive focal lengths. They work best when producing real images at infinite conjugates when the convex surface is facing to the object.
Planoconcave lenses have one plane surface and one concave surface. They are mainly used to increase focal lengths in existing systems. They are a more suitable choice than the equivalent equi-concave lens if the magnification lies in the range of <-5 to >0.2.
Meniscus lenses are lenses with one convex surface and one concave surface. Meniscus lenses are used to shorten the focal length of a doublet or a plano-convex lens already working at an infinite conjugate.
Ball lenses come in various sizes and are made of optical glass. They are produced to provide a high coupling efficiency when used with fiber optics. They are simple to use as they can be put in contact with the end of the fiber.
Conical lenses have a conic surface. These components are designed for use in a variety of laser and imaging applications with standard sizes from 3mm to 10mm. Other specifications are available on request. There are coated and uncoated versions provided to meet different applications for the customer. Cone Lenses can be used for 360-degree illumination and imaging applications. Mostly they are used in a tandem-like arrangement with other lenses.
These components are designed for use in a variety of laser and imaging applications with standard sizes from 2mm to 10mm. Other specifications are available on request. Their optical performance is similar to a cylinder lens. Collimated light passing through the diameter of the rod will be focused into a straight line.
Achromatic lenses are lenses, consisting of two or more elements, usually of crown and flint glass, that has been corrected for chromatic aberration with respect to two selected wavelengths. Also known as ‘achromat’. Achromatic Doublets-These lenses are made of two different glasses, crown and flint. They are designed to perform well throughout the entire visible spectrum with spherical and chromatic aberrations corrected to the required specification even to the diffraction limits. Their ability of producing sharper images is superior to that of the single element lenses.
Triplet Achromats are triplets, specifically designed for 1:1 conjugate ratio is ideal for use in relay systems. By the principle of symmetry aberrations are corrected automatically.