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 [Standard Level] | Φ1.2 - Φ80 mm |
| Diameter [Optimal Level] | Φ0.8 - Φ200 mm |
| Diameter [Inspection Equipment] | Digital Micrometer |
| Radius of Curvature [Standard Level] | R > 0.8 mm |
| Radius of Curvature [Optimal Level] | R > 0.5 mm |
| Radius of Curvature [Inspection Equipment] | Optical Test Plate / (Interferometer + Rangefinder) |
| Center Thickness Tolerance [Standard Level] | ±0.03 mm |
| Center Thickness Tolerance [Optimal Level] | ±0.01 mm |
| Center Thickness Tolerance [Inspection Equipment] | Digital Micrometer |
| Surface Defects [Standard Level] | 2*0.1 |
| Surface Defects [Optimal Level] | 2*0.016 |
| Surface Defects [Inspection Equipment] | Visual Inspection or Microscope |
| Sagitta (Local Fringe Error) [Standard Level] | 3 (0.5) |
| Sagitta (Local Fringe Error) [Optimal Level] | 1 (0.2) |
| Sagitta (Local Fringe Error) [Inspection Equipment] | Interferometer |
Datasheet
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Supplier Information
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