Cylindrical Lens
Cylindrical Lenses have a cylindrical surface and act on incident light in only one direction, unlike spherical lenses' symmetric action in two directions. They focus parallel or divergent beams into a line or change image aspect ratio, generally for one-dimensional source shaping. Plano-concave and plano-convex forms diverge and converge beams, respectively. A plano-convex cylindrical lens has a flat and a convex cylindrical face, positive focal length, and focuses light into a line. A plano-concave cylindrical lens has a flat and a concave cylindrical face and negative focal length. Dongkeda offers various sizes and shapes, with precision manufacturing capability for medium and large apertures exceeding 100 mm. Materials include K9 optical glass for visible and near-infrared, germanium, silicon, and calcium fluoride for infrared, and fused silica for ultraviolet. Coating options meet different applications and wavelength bands.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter Error | +0.0mm/-0.1--0.02mm |
| Center-thickness error | ±0.05--0.02mm |
| Surface-figure irregularity [632.8nm] | λ/4-- λ/20@632.8nm |
| Effective-focal-length error | ±0.1% |
| Lens centering error | 1arcmin |
| Surface Finish | 20/10 – 60/40 |
Datasheet
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Supplier Information
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