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Off-Axis Paraboloid Mirrors

Photonics.com
Jan 2014
Optical Surfaces Ltd.Request Info
 
KENLEY, England, Jan. 21, 2014 — Off-axis paraboloid mirrors by Optical Surfaces Ltd. direct and focus incident collimated light at a specific angle for unrestricted access to the focal point.

The mirrors are suitable for applications such as high-power laser focusing, collimating reference wavefronts, focusing upon astronomical objects, beam expansion, and aligning bore sights for missile guidance systems.

The standard off-axis paraboloid mirrors range from 60 to 600 mm in diameter and offer surface accuracy to λ/20, peak to valley, depending upon off-axis angles. The natural limit to the off-axis angle, around 25° to 30°, can be achieved, along with surface microroughness of less than 1 nm. Various coatings are available for standard and custom components, ranging from metallic, with or without a protective overcoat, to multilayer dielectrics and ultrahard coatings.


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GLOSSARY
astronomy
The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
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