Bk7 Double Convex Spherical Lens Use for Focusing and Imaging

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis. Lenses are made from materials such as glass or plastic, and are ground and polished or moulded to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses.

Double Convex Spherical Lens are fabricated with the identical convex surface on both sides of the lens. Due to the symmetry, aberrations such as coma, distortion and chromatic aberration are almost cancelled out. These lenses may be combined with other lenses to form complex imaging systems.Bi-convex lenses are useful for a wide range of finite conjugate or illumination applications. These lenses are manufactured from BK7A or Fused Silica. Lenses are supplied uncoated. These bi-convex lenses may be combined with other lenses to form complex imaging systems. Anti-reflection coatings are available. Please contact the Star Optic's sales team for more information about coatings.

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