Request a quote Meniscus Cylindrical Lenses
Custom meniscus cylindrical lenses for one-axis beam and imaging control.
Product Overview
Meniscus cylindrical lenses have a meniscus profile and are designed to provide cylindrical optical action.
Their net power can be positive or negative; the actual surface prescription determines focusing or divergence in the powered meridian.
Material, aperture, center thickness, cylindrical radii, axis orientation and coating requirements can be specified to your drawings, subject to manufacturing review.
Applications
- Laser Beam-Shaping Instruments: Positive or negative cylindrical power for changing one beam dimension within a matched optical assembly.
- Anamorphic Imaging Systems: Adjusting image magnification in one direction while retaining the specified meniscus profile.
- Optical Inspection & Measurement: Balancing one-axis focus or astigmatism within a prescribed measurement optical path.
- Scientific Optical Test Systems: Investigating line focusing or one-axis divergence according to the confirmed sign of cylindrical power.
Typical Specifications
| Parameter | Standard Grade | Precision Grade |
|---|---|---|
| Materials | N-BK7, Quartz, CaF₂, MgF₂, ZnSe, ZnS, and other optical glass upon request | N-BK7, Quartz, CaF₂, MgF₂, ZnSe, ZnS, and other optical glass upon request |
| Diameter | 5–300 mm | 5–300 mm |
| Diameter Tolerance | +0 / −0.10 mm | +0 / −0.02 mm |
| Center Thickness Tolerance | ±0.10 mm | ±0.02 mm |
| Radius of Curvature Tolerance | ±0.5%–±1% | ±0.1% |
| Surface Figure | λ/4 @ 632.8 nm | λ/10 @ 632.8 nm |
| Surface Quality (Scratch–Dig) | 40–20 | 20–10 / 10–5 |
| Surface Roughness (Ra) | ≤1.0 nm | ≤0.3 nm |
| Centration Error | <3′ | <30″ |
| Angle / Wedge | 1′–5′ | 1″–10″ |
| Coating | AR / HR, etc., to customer requirements | AR / HR, etc., to customer requirements |
Other specifications, materials, and coatings are available upon request.