05 Oct 2006 Optical Surfaces Ltd. is a leading supplier of high precision off-axis parabolic mirrors for applications including high power laser focusing, focusing upon astronomical objects, collimating reference wavefronts and beam expansion. Optical Surfaces Ltd. is one of the world's leading suppliers of high precision off-axis parabolic mirrors for applications including high power laser focusing, focusing upon astronomical objects, collimating reference wavefronts, beam expansion, MTF measurement, MRTD testing and bore sight alignment for missile guidance systems.
Typical specifications achieved by Optical Surfaces Ltd's highly experienced and skilled team of engineers and craftsmen include off-axis parabola up to 600 mm in diameter with surface accuracy's to lambda/20 p-v depending upon off-axis angles. With proprietary polishing techniques Optical Surfaces can, depending on the surface accuracy required, achieve the natural limit to the off-axis angle of around 25-30 degrees and surface micro-roughness on aspherics of ~ 1 nm rms. 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.
Parabolic mirrors are the most common type of aspherical mirrors used in optical instruments. They are free from spherical aberrations, and thus focus a parallel beam to a point or a point source to infinity. 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. All together these advantages produce a cost-effective solution for many optical design problems with no compromise in performance.
Production approved to ISO 9001-2000 the quality of off-axis parabola from Optical Surfaces Ltd. is ensured both by long experience and a range of interferometric and surface test measurements on all optics and optical systems leaving the factory. For further information on how high performance off-axis parabolic mirrors can benefit your application please contact Optical Surfaces Ltd. on telephone on +44-208-668-6126, email jm@optisurf.com or visit the website at www.optisurf.com |
