Cylindrical Lens
A cylindrical lens has a cylindrical surface that enables incident light to be focused in one dimension while producing a stretching effect on the image. Its focal length can be positive or negative. Based on this characteristic, cylindrical lenses are commonly used in various scenarios: first, focusing incident light onto a line or changing the aspect ratio of an image; second, applications in laser line generation, anamorphic beam shaping, and even for annular laser output. Cylindrical lenses include the following types: plano-convex cylindrical lenses, plano-concave cylindrical lenses, biconvex cylindrical lenses, biconcave cylindrical lenses, meniscus cylindrical lenses, crossed cylindrical lenses, irregular cylindrical lenses, achromatic cylindrical lenses, reflective cylindrical lenses, freeform cylindrical lenses, special-process cylindrical lenses, etc.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter [Processing Capability] | 2 - 100 mm |
| Diameter [Inspection Equipment] | Image Measuring Instrument |
| Diameter Tolerance [Processing Capability] | ±0.02 mm |
| Diameter Tolerance [Inspection Equipment] | Image Measuring Instrument |
| Radius of Curvature [Processing Capability] | > 5 mm |
| Radius of Curvature [Inspection Equipment] | Interferometer + Computer-Generated Hologram |
| Reflective Decentration [Processing Capability] | 0.5' (5 μm) |
| Reflective Decentration [Inspection Equipment] | Decentration Measuring Instrument |
| Surface Figure [Processing Capability] | 1 (0.2) |
| Surface Figure [Inspection Equipment] | Interferometer + Computer-Generated Hologram |
| Surface Defects [Processing Capability] | 2x0.1 |
| Surface Defects [Inspection Equipment] | Visual Inspection or Microscope |
Datasheet
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Supplier Information
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Bi-convex lens
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Zeit-group
Material: H-K9L(BK7) / Quartz / Sapphire / CaF2 / BaF2 / MgF2 / Ge / ZnSe Optical Coating: As Required Surface Figure Accuracy: λ/6
Biconvex lenses primarily collect light from a point source or relay images to other optical systems.
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Plano-convex cylindrical lens
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Zeit-group
Material: H-K9L(BK7) / Quartz Optical Coating: As Required Surface Figure Accuracy: λ/2
A plano-convex cylindrical lens forms a line image and controls beam size in only one direction.
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Plano-convex lens
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Zeit-group
Material: H-K9L(BK7) / Quartz / Sapphire / CaF2 / BaF2 / MgF2 / Ge / ZnSe Optical Coating: As Required Surface Figure Accuracy: λ/6
A spherical plano-convex lens operates by refraction.
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Plano-concave cylindrical lens
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Zeit-group
Material: H-K9L(BK7) / Quartz Optical Coating: As Required Surface Figure Accuracy: λ/2
A plano-concave cylindrical lens forms a diverging line-shaped virtual image and controls beam size in only one direction.
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Plano-concave lens
Optical Lenses
Zeit-group
Material: H-K9L(BK7) / Quartz / Sapphire / CaF2 / BaF2 / MgF2 / Ge / ZnSe Optical Coating: As Required Surface Figure Accuracy: λ/6
A plano-concave lens has a negative focal length and diverges a collimated beam.
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