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Cylindrical Lenses

issue date:2016-3-31 15:35:44 visit frequency:1583

Cylindrical Lenses

Cylindrical lens has at least one surface that is formed like a portion of a cylinder. These patented gradient-index cylindrical microlenses with Luneburg type refractive index distribution are drawn from a highly polished gradient-index fiber preform. Cylinder Lenses are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylindrical Lenses have a single cylindrical surface that causes incoming light to be focused in only a single dimension, stretching the image. Cylinder Lenses are available with positive or negative focal lengths, ideal for laser line generation or anamorphic beam shaping to circularize laser outputs. XF Photonics selection of Cylinder Lenses include achromatic, plano-convex, or plano-concave. Achromatic Cylinder Lenses provide additional color correction by minimizing chromatic aberration. XF Photonics provide Cylinder Lenses with various glass, or with circular, rectangular, or oblong dimensions. Multiple anti-reflection coating options are available from the ultraviolet to the infrared.


Cylindrical Lenses

General precision

Highprecision

Material

BK7 or others

Dimensiontolerance

±0.2mm

±0.02mm

tctolerance

±0.2mm

±0.02mm

Clear aperture

>95%

Surface quality

60-40

20-10

Flatness

X=λ/4, Y=λ/2

X=λ/8, Y=λ/4

Centration

3 arc min

1 arc min

Size (φ)

2.5 to 350mm or customize

Note

Uncoated, AR , HR , PR Coating , etc

ROHS

Compliant


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