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Optical Profiling Techniques Characterize Free-Form Optics

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Erik Novak and Mike Zecchino, Veeco Instruments Inc.

Optics that deviate from the traditional spherical shape are increasingly popular in optical designs because of their superior image quality, reduced cost and smaller space requirements. The increased availability of free-form optics is attributable in large part to improvements in optical manufacturing techniques such as diamond turning, ion beam milling, molding, computer-numerical-controlled machining and fine-scale etching. Especially prevalent are smaller aspheric elements that are often incorporated into telecommunications systems, DVD players, microelectromechanical systems (MEMS) and...Read full article

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    Published: March 2004
    Glossary
    diamond turning
    Diamond turning, also known as diamond machining or diamond cutting, is a precision machining process used to produce high-quality optical surfaces and components with extremely tight tolerances. It involves the use of a single-point diamond cutting tool to remove material from a workpiece, typically made of metals, plastics, or optical materials like glass or crystals. In diamond turning, the cutting tool, which has a diamond tip, is controlled with high precision and moved relative to the...
    metrology
    Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement, including the development of measurement standards, techniques, and instruments, as well as the application of measurement principles in various fields. The primary objectives of metrology are to ensure accuracy, reliability, and consistency in measurements and to establish traceability to recognized standards. Metrology plays a crucial role in science, industry,...
    Basic ScienceCommunicationscomputer-numerical-controlled machiningdiamond turningFeaturesfine-scale etchingindustrialion beam millingmetrologyMicroscopymolding

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