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Meniscus Cylindrical Lens

Name: Meniscus Cylindrical Lens
Brand: ECOPTIK INDUSTRIAL PTE.LTD.

Meniscus cylindrical lens is a type of lens in which both surfaces are curved (one convex and one concave), and typically both surfaces have curvature in the same direction (i.e., the sagittal direction is consistent). By cleverly combining a convex surface and a concave surface together, a meniscus cylindrical lens can minimize deviations in the optical path, cancel out or control these aberrations at extremely low levels, and obtain clearer and less distorted line focusing or images. It is usually applied in situations where high imaging quality or spot quality is required.

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Features of Meniscus Cylindrical Lens

It is a lens that one surface is the convex shape, another surface is concave with a cylindrical shape, its role is making beam converging or diverging on a plane, and that beam doesn't work for the perpendicular plane(cylindrical axis) with it. A cylindrical lens is used in turning a transmitted plane wave into a cylindrical wave, or turn an original cylindrical wave into a plane wave or spherical wave, such a kind of lens can correct ocular astigmation.

ECOPTIK uses classical processing technology and strict process control to ensure that the surface accuracy of the lens is sufficient to meet customer requirements. At the same time, we use the Zygo interferometer to perform multiple corrections and measurements during and final processing of the surface progress.

Specification of Meniscus Cylindrical Lens

Commercial	High precision
Material	Optical glasses, fused silica, silica, etc.
Diameter	0.5mm ~ 150mm
Diameter tolerance	±0.1mm	±0.02
Focal length	-50mm ~ 2000mm
Focal length tolerance	±2% (<10mm)
	±0.5%<10mm – 1000mm)
	±1% (>1000%)
Centraticom	<3 arc min	<10 arc sec
Clear aperture	>85% ~92% of diameter
Surface quality ( Scratch / Dig)	MIL 60/40	MIL 10/5
Surface accuracy	λ/4@632.8nm	λ/10632.8nm
Bevel	0.05mm~0.2mm x 45°
Coating	Up on customer's requirement.

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