Optical-Glass Plano-Concave Lenses
Plano-concave lenses have negative focal length and diverge collimated beams, as in Galilean beam expanders or telescopes. With collimated input, the curved surface should face the source to minimize spherical aberration. Their negative spherical aberration can compensate that of other lenses in an optical system.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Grade A optical glass; UV, VIS and IR materials |
| Dimensional Tolerance | ±0.1mm (Standard);±0.05mm (High Precision) |
| Center Thickness Tolerance | ±0.1mm (standard); ±0.05mm (high precision) |
| Paraxial Focal Length | ±2% |
| Surface Finish | 60/40 (Standard);20/10 (High Precision) |
| Clear Aperture Dimension | >85% |
| Surface Figure [633nm] | λ/2 (Standard);λ/4 (High Precision) @633nm |
| Center | 3 arcmin |
| Chamfer [45°] | <0.25mm×45° |
| Coating | According to Requirements |
| Customizable Spherical Lens Diameter [On request] | 1.0 至 300 mm |
Applications
Key Features
Datasheet
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Supplier Information
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