Aspheres have much better imaging properties than spherical lenses thanks to the surface geometry that deviates from a sphere. The main benefit is the ability to correct spherical aberrations. The total number of optical elements in an optical system can be reduced by using an aspheric lens. This enables a significantly more compact and efficient setup than is the case for a comparable system with spherical lenses.
The main benefit of an asphere is the rotational symmetry. These properties allow the correction of aberrations, which arise from the shape of a sphere. For more information on avoiding aberrations, the benefits and applications of aspherical lenses, click here.
Based on an unique technology, asphericon is able to produce aspheres with a surface form deviation (RMSi) from up to ≤ 0,3 µm. In cooperation with our customers we are developing and producing suitable solutions for a big variety of optical lenses – from the prototype to series. Choose an individual Custom solution or use the innovative diversity of our stocked aspheric lens from the StockOptics product line. a|Aspheres are available in our web shop with surface form deviations of RMSi ≤ 0.5 μm and RMSi <0.3 μm. Due to precise focusing properties, all aspheres are suitable for a wide variety of applications.
asphericon manufactures aspheric optics with diameters of between 1 mm and 420 mm and with a roughness value of up to 0.5 Rq. Our experienced team works together with you to develop customised optical designs and manufactures aspheres as per the required specifications. We would be pleased to develop the right aspheric solution for you. We look forward to receiving your enquiry.
Do you need aspheric lenses with short delivery times and excellent optical properties?
In our Webshop you will find precision-polished aspheres (a|High-NA, a|Low-NA, a|UV-grade fused silica) with diameters between 10 mm and 100 mm. Benefit from outstanding surface quality (RMSi up to < 0.3 µm) available in different standard coatings and delivery direct from the warehouse.
|Customized aspheres*||StockOptics Aspheres|
|Diameter||4-300 mm||10 - 100 mm|
|Diameter Tolerance||+/- 0,03 mm||+/- 0,05 mm|
|RMS irregularities (RMSi)||20 nm||≤ 300 nm|
|Surface Imperfections (Scratch/Dig)||20-10||20-20|
|Coating||Customer specific||4 standard coatings|
|Laser damage threshold||NA||12 J/cm², 100 Hz, 6 ns, 532 nm**|
|Measurement (optional)||Full-surface interferometrically||Full-surface interferometrically|
|Delivery time||From 3-4 weeks||From 1 day|
*Best-fit-specifications | **100 Hz, 6ns, 532 nm