Posted in | Optics and Photonics

Aspheric Lenses in High Quality Optical Glasses with Low f-Number Available from Optical Surfaces

Using proprietary manufacturing techniques Optical Surfaces Ltd. has earned an international reputation for producing diffraction-limited aspheric lenses for the most demanding applications.

Optical Surfaces is renowned for producing aspheric lenses in a range of high-quality optical glasses with low f-number to optimise light gathering and focusing performance. To meet the demands of high-power laser focusing, LIDAR and laser launch telescopes Optical Surfaces is able to manufacture aspheric lenses up to 60mm in diameter with surface finish of 20/10 scratch/dig, surface roughness of 1nm rms and ultra-smooth slope errors. A range of durable coatings are available for aspheric lenses to maintain high transmission and to enable operation at the ultra-high energy thresholds demanded by the latest generation of high power lasers.

An aspheric surface profile is often used to eliminate spherical aberration and reduce other aberrations associated with simple lenses. A single aspheric lens can often provide a smaller, lighter, less-expensive alternative to a traditional complex multi-lens system.

Optical Surfaces Ltd ( has been producing optical components and systems for more than 45 years and is now accepted as one of the world's leading manufacturers of high-precision optics for symchrotron research facilities. The company's ISO 9001-2000 approved manufacturing workshops and test facilities are deep underground in a series of tunnels excavated in solid chalk where temperature remains constant and vibration is practically non-existent. With such stable conditions testing, particularly with long path lengths, becomes quantifiable and reliable. Working with these natural advantages is a highly skilled team of craftsmen with a commitment to excellence in both product quality and customer service.

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