Plano-Convex Lens
Plano Convex (PCX) Lenses focus parallel rays to a focal point. They have positive focal length, one flat surface, and one convex surface. The convex surface usually faces the incident beam. The source explains that incidence from the two sides involves slightly different refractive indices and focal lengths, and recommends curved-surface incidence to reduce spherical aberration. These lenses align and focus monochromatic sources, converge parallel light, or collimate divergent point sources. Dongkeda offers various sizes and focal lengths, 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/-0.1mm |
| Center-thickness error | ±0.2mm |
| Surface-figure irregularity [632.8nm] | λ/4@632.8nm |
| Effective-focal-length error | ±0.1% |
| Lens centering error | 1arcmin |
| Surface Finish | 40/20 –60/40 |
Datasheet
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Supplier Information
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