High Precision UV JGS1 Plano Concave Lens

High Precision UV JGS1 Plano Concave Lens

Plano-concave lenses have negative focal lengths, making them useful for a wide range of applications. They are commonly used to diverge a collimated incident beam; in such cases the collimated light source should be incident on the curved surface to minimize spherical aberrations.

Plano-concave lenses, which produce virtual images, are used as the entrance optic in Galilean-type beam expanders; this lens provides the desired divergence and then a doublet is used to recollimate the beam.

In optical systems, it is common for researchers to choose their optics carefully so that the aberrations introduced by the positive- and negative-focal-length lenses approximately cancel. Still others use these lenses in pairs to increase the effective focal length of a converging lens.

When deciding between a plano-concave lens and a bi-concave lens, both of which cause collimated incident light to diverge, it is usually preferable to choose a plano-concave lens if the desired absolute magnification is either less than 0.2 or greater than 5. Between these two values, bi-concave lenses are generally preferred

Specifications:

Material: N-BK7, H-K9L, fused silica, H-ZF52A, silicon, MgF2, CaF2, Sapphire, ZnSe, ZnS, etc.
Diameter Tol: +/- 0.1mm, +/-0.01mm
CT Tol: + / -0.1mm, +/- 0.01mm
Focal length Tol: ±1%
Centration: <3 arc minutes, <1 arc minutes net
Clear Aperture:> 90%
Flatness: <1.5Lambda (General), Irregularity: 0.2-0.5λ
Surface quality (S/D): 60/40,40/20
Coating: AR@ultraviolet (UV), Visible light or infrared (IR) spectrum; Mirror coating

- Double-concave lens has a negative focal length and is useful for 1:1 imaging and in multielement systems. Also known as biconcave or equiconcave.

- Plano-concave lens has a negative focal length and is useful for image reduction or to spread light.

Product application introduction:

◇Sapphire parts include Sapphire Ball Lens, Sapphire Washers, Sapphire Tube, Sapphire Ring Lens, Sapphire Rod Lens... They are manufactured from single crystal sapphire, making them ideal for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis.
◇Optical Filters are used in applications such as fluorescence microscopy, clinical chemistry, spectroscopy, or machine vision inspection. Including Cut off Filter, Bandpass filter, Narrow Bandpass Filter, Longpass filter, Shortpass filter, ND filter, Notch filters and Color glass filter.
◇Collimator Lens also called Aspheric lens, Focusing lens. Eliminate monochromatic aberrations (e.g. spherical aberration) and improve focusing and collimating accuracy. The whole system will be smaller and lighter, and possibly cheaper than the multi-lens design.
◇Optical Lenses including concave lens and convex lens, are Optical Components designed to focus or diverge light. A Plano Convex Lens or Double Convex lens causes light to focus to a point, while a Plano Concave Lens or Double Concave Lens causes the light traveling through the lens to diverge. Achromatic Lens are ideal for applications requiring color correction, while Aspheric Lens are designed to correct spherical aberration. Germanium Lens, Silicon Lens, or Znse Lens are ideal for transmitting the Infrared (IR) spectrum, while Fused Silica Lens is well suited for the Ultraviolet (UV).

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Product Categories : Spherical Lens > Plano Concave Lens