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Aspheric Lenses

Why asphere?

Precision Aspheric lenses are designed to focus light while eliminating spherical aberration from divergent light sources in applications including focusing output of a laser diode.
Aspheric lenses can increase the numerical aperture of a lens while minimizing system aberrations. Aspheric lenses also reduce the number of components in a multi-component system thus reduce the weight, increase throughput and simplify assembly.

Aspheric Design & Manufacturing

For large quantity and relatively lower precision requirement production, molding provides one of the most cost-effective way of manufacturing of aspheres.
Shanghai Optics use plastic material and several different glass materials that are suitable for precision molding due to their low transformation temperatures. Acrylic, Plastic, BK-7, B270, Pyrex, Borosilicate, F2 etc.
Please contact our sales engineers for additional technical information.

  • Form error: ≤ 5 fringes (sph. side)
  • Form error: ≤ 5 µm PV (asph. side)
  • Irregularity: ≤ 2 fringes (sph. side)
  • Tilt: ≤ 2´
  • Surface roughness: < 1 nm rms

Sometimes the many challenges that optics manufacturers have had to overcome while polishing glass aspheric surfaces have left designers with little confidence that precision glass aspheres can be manufactured in volume production, with tight specification, with a reasonable budget and in a short lead-time.
Over the past decade our understanding of technology and the polishing process has lead to the emergence of “new tools and manufacturing method” which make it possible for us to routinely produce a wide variety of sophisticated high precision aspheres. At Shanghai Optics we take pride in our ability to produce cost-effective high precision glass aspheres that provide our customers the competitive advantage for their custom applications.

  • Diameter: from under 10 mm to over 300 mm
  • Maximal aspheric deviation from best-fit-sphere: from a few waves to a few millimeters
  • Maximal PV of surface from error: from under 1/20 wave to a few waves

Optical Glass Asphere

  • Substrate Material: BK-7, B270, Pyrex, Borosilicate, F2 etc
  • Form error: ≤ 5 fringes (sphere side); ≤ 5 µm PV (asphere side)
  • Irregularity: ≤ 2 fringes (sphere side)
  • Tilt: ≤ 2´
  • Surface roughness: < 1 nm RMS
  • Lens diameter: 5 to 120 mm
  • Lens thickness: 2 to 10 mm
  • Radii / pole radii Concave 20 to 250 mm
  • Radii / pole radii Convex 20 to 250 mm

Infrared Material Asphere

  • Substrate Material: Si, Ge, ZnSe, ZnS and more
  • Surface Quality: 20-10(after coating)
  • Surface figure: l/4 @ 633nm<
  • Angle: +/-2″
  • Clear Aperture: >85% of central dimension
  • Antireflection Coating: @ 3-12 um
  • Lens diameter: 5 to 120 mm
  • Lens thickness: 2 to 10 mm
  • Radii / pole radii Concave 20 to 250 mm
  • Radii / pole radii Convex 20 to 250 mm

The VeriFier XP uses the precision of phase modulation to show fine measurement detail on your parts with excellent accuracy and repeatability. ZYGO’s proprietary Metro Pro™ software offer a wide range of operational features and data analysis tools for unmatched measurement capability.
Our trademark discounts for OEM-quantity orders are the best kept secret in the Photonics industry! Please contact our sales engineers for professional help for your cutting edge design with cost-effective solutions.


Please contact our sales engineers for your custom Aspheric Lenses solutions today.

Call us to find out more about our services at +1 732-321-6915 or our design services team info@shanghai-optics.com directly for free initial technical consultation.

Our Optics, Your Vision!