SPHERICAL OPTICS

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Tight-tolerance lenses you can trust

SPHERICAL DEPARTMENT

For over 40 years PFG Precision Optics has been creating spherical optics and lenses that can be used in a variety of applications and industries. Lenses themselves can be composed of one or many elements and can serve in very different areas. We are proud to create quality optical components for use in imaging, industry, and even defense. We are engaged in the creation of a range of optical lenses, which include Plano-Convex Lenses, Double-Convex Lenses, Plano-Concave Lenses, Double-Concave Lenses, IR Lenses, and UV Lenses. PFG offers one of the largest inventories of optical lenses in the world, each with high quality and durability.

SPHERICAL OPTICS TOLERANCES

PFG Optics offers extensive lens manufacturing capabilities with experience polishing all types of optical glasses, fused silica and crystalline materials including CaF2 and ZnSe. We choose the best process technology to ensure such specifications for spatial frequency or low surface roughness on a given substrate are optimized to achieve the maximum optical performance.  Truncation, high included angle, steep or long radii – we likely have the best practice for timely and efficient production.

Specification Limit
Diameter (mm)
±0.005
Center Thickness (mm)
±0.020
Sag - Concave (mm)
±0.010
Clear Aperture
100%
Radius (mm)
±0.0025
Irregularity (ƛ)
1/20
Wedge Lens - ETD (mm)
0.003
Bevels - Face Width @ 45° (mm)
±0.05
Scratch - Dig
10 - 5
Surface Roughness (Å, RMS)
3

OPTICAL TOLERANCE CHART

Download our optical tolerance chart to see our standard and best tolerances.
However, if these don't perfectly fit your needs, please reach out to us so we can discuss what we can do for you.
spherical lenses

Custom Spherical Optics

PFG has extensive lens manufacturing capabilities using all types of optical glasses, fused silica and crystalline materials including CaF2, Ge, MgF2, Si, ZnSe, ZnS and Amtir. We select the best process technology from spindle polishers, CNC polishers, magneto rheological finishing or a combination thereof to produce the required specifications – some subtle such as low spatial frequency, some more obviously beneficial such as low surface roughness – to achieve the required optical performance from a given material.
Tight centering, truncation, high included angle or long radii – we use best practices developed from decades-long experience to achieve timely and efficient production. We have a vast library of test plates and many current model Zygo interferometers, all with complete reference spheres for accurate surface measurement.

ORDER YOUR PRECISION OPTICS TODAY

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US manufacturer of high precision optical components (UV thru mid-IR) with a multi-decade track record of reliably producing quality commercial and military optics. Capabilities include spherical – doublets/triplets – and flat optics – prisms, wedges, beamsplitters, polarizers, filters, and mirrors. Our in-house coating facility offers a wide variety of custom coatings, including high power laser coatings, ITO, and high durability ARs.