Plano-Convex Lenses
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 lensesusing 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 |
Standards |
|
Effective Focal Length (EFL) Tolerance |
±2% |
|
Dimensional Tolerance |
Diameter: +0.000”-0.005” |
|
Thickness: ±0.010” |
|
|
Edge Thickness Variation (ETV) |
<= 0.002” |
|
Clear Aperture (polished) |
90% of diameter |
|
Surface Figure at 0.63µm |
Plano: 1 fringe Power |
|
1/2 fringe Irregularity |
|
|
Radius: varies depending upon radius |
|
|
Scratch-Dig |
10-20 |
|
AR Coating Reflectivity per Surface at 10.6µm |
<= 0.20% |
More information:
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