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Spherical optics

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
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.

Download tolerance chart

Plano-Concave Lenses

Concave-Convex Lenses

Plano-Convex Lenses

Convex-Concave Lenses

Double-Concave Lenses

Double-Convex Lenses

UV Lenses

IR Lenses

Custom Spherical Optics

Spherical lenses and optics are utilized by a large variety of industries and applications, such as astronomy, aerospace, imaging and sensing, medical diagnostics, and measurements and testing. Convex and concave spherical optics with exceedingly tight tolerancing are used often instead of optics assemblies which need active aligning or are extremely difficult to produce. The industry relies on our interferometers to measure concave spherical optics, whether it’s several meters or only a few millimeters in total diameter. These interferometers are capable of measuring both convex and concave spherical optics, accompanied by a large variety of reference optics to correspond with test pieces. Steep slopes are easily measured with high resolution systems.

Order your precision optics today

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.

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