High-Precision Biconcave Lens
Biconcave lenses, like plano-concave lenses, produce diverging light and are best suited to converging incident beams. They have negative focal length, support the Zemax optical-design suite and are available in materials on request. WTS provides custom biconcave lenses. Its spherical-lens offering includes other optical glasses from Schott, Ohara, Hoya and CDGM; UVFS from Heraeus and Corning; and germanium, silicon, ZnSe, ZnS, CaF2 and sapphire. Spherical lenses can be customized from 1.0mm to 300mm diameter. Applications include visual optics, laser optics, medical optics, 5G optical communications and military optics.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Optical glass, BK7, fused silica, SCHOTT, OHARA, CaF2, germanium, etc. |
| Dimensional Tolerance | ±0.1mm (standard version), ±0.01mm (high-precision version) |
| Center Thickness Tolerance | ±0.1mm (Standard Type), ±0.02mm (High-Precision Type) |
| Paraxial Focal Length | ±2% |
| Surface Finish | 60/40 (Standard);20/10 (High Precision) |
| Clear Aperture Dimension | >85% |
| Surface Figure [633nm] | λ/2 (Standard), λ/8 (High Precision) @633nm |
| Centration Error | 3 arcmin |
| Edge Bevel [45°] | <0.25mm×45° |
| Coating | According to Requirements |
| Customizable Spherical Lens Diameter [On request] | 1.0 to 300mm |
Applications
Datasheet
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Supplier Information
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