Cylindrical lens
A cylindrical lens has a cylindrical surface that allows incident light to be focused in one dimension while also producing a stretching effect on the image. Its focal length can be positive or negative; based on this property, cylindrical lenses are commonly used in various scenarios: first, focusing incident light into a line, or changing the aspect ratio of an image; second, used in laser line generation, anamorphic beam shaping, and even for annularizing 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, cross cylindrical lenses, shaped cylindrical lenses, achromatic cylindrical lenses, reflective cylindrical lenses, free-form cylindrical lenses, special-process cylindrical lenses, etc.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter | Φ1.2 - Φ80 mm |
| Diameter | Φ0.8 - Φ200 mm |
| Diameter | Digital micrometer |
| Radius of Curvature | R > 0.8 mm |
| Radius of Curvature | R > 0.5 mm |
| Radius of Curvature | Optical template / (interferometer + rangefinder) |
| Center Thickness Tolerance | ±0.03 mm |
| Center Thickness Tolerance | ±0.01 mm |
| Center Thickness Tolerance | Digital micrometer |
| Surface defects | 2 × 0.1 |
| Surface defects | 2 × 0.016 |
| Surface defects | Visual or microscope |
| Sagitta (local aperture error) | 3 (0.5) |
| Sagitta (local aperture error) | 1 (0.2) |
| Sagitta (local aperture error) | Interferometer |
Datasheet
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Supplier Information
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