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A cylindrical lens is a lens that focuses light on a line instead of a point, like a spherical lens. The curved face or faces of a cylindrical lens are sections of a cylinder, and focus the image passing through it into a line parallel to the intersection of the surface of the lens and a plane tangent to it. The lens compresses the image in the direction perpendicular to this line and leaves it unaltered in the direction parallel to it (in the tangent plane). In a light sheet microscope, a cylindrical lens is placed in front of the illumination objective to create the light sheet used for imaging. Cylindrical lenses focus or expand light in one axis only. They can be used to focus light into a thin line in optical metrology, laser scanning, spectroscopic, laser diode, acousto-optic, and optical processor applications. They can also be used to expand the output of a laser diode into a symmetrical beam. Cylindrical lenses are widely used in telecom applications like WSS, 40G/100G modules and laser applications like pump laser modules
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Fuzhou, ChinaLead Time:
5-6weeks
1. Plano-Concave Circular Cylindrical Lenses
Plano-concave rectangular cylindrical lenses provide uni-axial negative imaging for anamorphic beam expansion and a wide range of applications.These lenses may also be used as mirror blanks if a concave cylindrical surface mirror is required.
HG OPTRONICS Plano Concave Circular Cylindrical Lenshas a concave curvature in the vertical direction and has no curvature in the horizontal direction. They are edged as circular shapes so they can easily be combined with other elements in an optical system.
1.1、Why is cylindrical lens used?
A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens has one cylindrical surface, causing light to be focused in a single dimension or axis.
1.2. Common specification
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Material: |
Schott, CDGM, Ohya, Ohara, Corning, etc. |
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Dimension Tolerance: |
+0/-0.05mm |
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Effective Focal Length Tolerance: |
±2% |
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Surface quality: |
40/20S/D |
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Clear Aperture: |
>90%of surface dimensions |
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Surface flatness: |
N=5△N=0.5 |
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Centering Tolerance: |
≤3 arc min |
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Bevel: |
<0.25mm X 45° |
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Coating: |
Uncoated / Single layer MgF2 / Broadband AR |
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