Plano-convex lenses are positive focal length elements with one spherical surface and one flat surface. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optics are ideal for general purpose focusing elements.
Our lenses are ideal for a variety of applications, from industrial, robotics, pharmaceutical to defense.
Esco manufactures plano-convex lenses using S1-UV grade fused silica, G1 fused silica, commercial grade and BK7 optical glass. Each optic is pitch polished to provide good surface quality and excellent low-cost imaging performance for a wide range of light sources.
When plano convex lenses are used for laser cutting, they are best suited for high-turnover cutting applications and when cutting thick materials. In these cases, the plano-convex lens provides a larger cut width, which allows the laser's oxygen-assisted access to cut and aid in the cut. Plano convex lenses also provide greater depth of field, which helps create tapered edges.
Material selection: optical glass, laser crystal, fused silica, anti-radiation glass, infrared and ultraviolet materials, metal materials
Specifications
Specifications
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Standards
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Effective Focal Length (EFL) Tolerance
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±2%
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Dimensional Tolerance
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Diameter: +0.000”-0.005”
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Thickness: ±0.010”
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Edge Thickness Variation (ETV)
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<= 0.002”
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Clear Aperture (polished)
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90% of diameter
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Surface Figure at 0.63µm
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Plano: 1 fringe Power
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1/2 fringe Irregularity
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Radius: varies depending upon radius
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Scratch-Dig
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10-20
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AR Coating Reflectivity per Surface at 10.6µm
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<= 0.20%
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