News | May 30, 2014

Aspheric Lenses Help Decrease System Size & Weight


Optical Surfaces are experienced in producing high quality aspheric lenses, up to 600mm in diameter, for the most demanding applications.

Aspheric Lenses are used to eliminate spherical aberration in a growing number of applications. Aspheric lenses use a single element design which helps minimise the number of lenses found in multi-lens optical assemblies. This reduction in total element count not only helps decrease system size or weight, but also simplifies the assembly process. Overall integrating an aspheric lens into an optical design typically reduces cost and may also outperform assemblies designed with traditional spherical optical lenses.

Aspheric lenses are produced by Optical Surfaces in a range of high-quality optical glasses with low f-number to optimise light gathering and focusing performance.  To meet the demands of challenging applications including high-power laser focusing, LIDAR and laser launch telescopes Optical Surfaces is able to manufacture aspheric lenses with surface finish of 20/10 scratch/dig, surface roughness of 1 nanometre rms and ultra-smooth slope errors.

A range of high-power laser coatings is available to maintain high transmission and enable Optical Surfaces' aspheric lenses to operate at the ultra-high energy thresholds demanded by the Terawatt lasers used to investigate fundamental plasma physics.

SOURCE: Optical Surfaces Ltd.