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Precision Optics, Aspheres, & Cylinders

Torrent produces cutting-edge, high-quality spherical, cylindrical, and asphere lenses in UV, visible and IR from prototype to production quantities. Kreischer Optics, one of the early pioneers in aspheres, is now part of Torrent Photonics, providing the expertise, proprietary processes, and end-to-end integration for exceptionally precise optics.



Torrent Photonics was one of the first to manufacture CNC machine aspheres, adding to our in-house conventional and molding capabilities. We have earned a reputation as a cutting-edge producer of aspheric lenses, capable of achieving geometries most don’t consider possible with our recent addition of 200mm asphere and cylinder manufacturing capabilities. Custom aspheres, spherical optics, and cylinders are manufacturable in standard glass materials as well as IR materials such as chalcogenide, IRG, Mg2F2, and Silicone.


Cylindrical Optics

Torrent uses CNC manufacturing coupled with conventional proprietary methods to produce the highest quality glass cylinders in the market efficiently. With an extensive tooling library, Torrent can reduce total program charges by nearly eliminating almost all tooling charges, and our techniques are conducive to both prototype and production quantities.



As a world leader in manufacturing custom glass lenses, Torrent Photonics meets your specifications for prototyping spherical lenses through CNC and conventional methods. With our origins in making test plates, we have developed an unmatched reputation in the industry for producing high-quality spherical lenses for clients like you, who have customers demanding high quality.

Tolerance Chart

Materials: Ohara, Corning, Schott, Heraeus | Diameter Range: 8-150mm to 5-200mm
Geometric Types: Aspheres, Spherical Lenses, Windows, Wedges, Prisms, Cylinders, & Freeforms
Attribute Standard Precision High Precision
Glass Material (nd, vd) ±0.001, ±.8% ±0.0005, ±.5% Design for Melt
Diameter (mm) ±0.1 ±0.025 ±0.015
Center Thickness (mm) ±0.1 ±0.050 ±0.025
Sag (mm) ±0.050 ±0.025 ±0.010
Clear Aperture 80% 90% 95%
Radius (larger of two) ±0.2% or 5 fr ±0.1% or 3 fr ±0.025 or 1 fr
Irregularity-Interferometer (waves, PV) 1 0.5 0.1
Irregularity- Profilometer (microns, PV) ±1 ±0.5 ±0.1
Wedge Lens (ETD, mm) 0.050 0.010 0.005
Scratch Dig 60-40 to 80-50 40-20 10-5 to 20-10
Surface Roughness (Å RMS) 50 20 10

Custom optics designed to for better performance.

Every project is different, that's why our engineers collaborate with your team to design and develop custom optics that fit the specific requirements of your projet.