News | September 11, 2009

Optical Surfaces Provides High-Performance Parabolic Mirrors


Optical Surfaces Ltd., a leading manufacturer of high precision optics, has over 40 years experience of supplying the world's leading laboratories with high performance parabolic mirrors.

Parabolic mirrors offer excellent correction of spherical aberration. Parabolic mirrors can either be on-axis or off-axis. On-axis parabolic mirrors produce collimated reflected light and are used in applications that require very fast focusing and high energy densities. Off-axis parabolic mirrors provide an unobstructed aperture allowing complete access to the focal region as well as reducing the size and minimising the weight of a design. They are especially suitable for broadband or multiple wavelength applications due to their completely achromatic performance. Typical applications for off-axis parabolic mirrors include high power laser focusing, focusing upon distant astronomical objects, collimating reference wavefronts, beam expansion, MTF measurement, MRTD testing and bore sight alignment for missile guidance systems.

Optical Surfaces Ltd's highly experienced and skilled team of engineers and craftsmen are able to produce on- and off-axis parabolic mirrors up to 800 mm in diameter with surface accuracy's to lambda/20 p-v and surface micro-roughness of ~ 1 nm rms dependant on diameter and f number. Benefiting from a stabilised manufacturing environment Optical Surfaces Ltd can, depending on the surface accuracy required, generate very fast focusing mirrors to f 0.5 using proprietary production techniques. A range of coatings is available for standard and custom components from metallic with or without protective overcoat to multilayer dielectrics and ultra hard coatings.

Production approved to ISO 9001-2000 the high quality of parabolic mirrors from Optical Surfaces Ltd. is ensured by a range of interferometric and surface test measurements on all optics and optical systems leaving the factory.

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SOURCE: Optical Surfaces, Ltd.