1. Home
  2. Electronic-photonic
  3. Electronics
  4. Optical surfaces: defect modeling and control

  5. Shape and wave defects

Article | REF: E4050 V1

Optical surfaces: defect modeling and control

Author: Jean-Paul MARIOGE

Publication date: May 10, 2005

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!

Automatically translated using artificial intelligence technology (Note that only the original version is binding) > find out more.

    A  |  A

    2. Shape and wave defects

    Optical surfaces have always been produced by lapping, which results in components with excellent surface finish and very little waviness. On the other hand, this method can give rise to shape defects (figure 2 ). The most common of these are axially symmetrical defects known as concave or convex crowns, or asymmetrical saddle-horse deformations, often due to the lens being fixed under stress. These shape defects affect image quality, and their influence can be simulated using aberration theories. Over the last few decades, research has also been carried out into new ways of surfacing spheres and, above all, aspherical surfaces. A wide variety of methods are used, including vacuum evaporation, ion bombardment, polishing, grinding and turning. Each has its own field of application....

    You do not have access to this resource.

    Exclusive to subscribers. 97% yet to be discovered!

    You do not have access to this resource.
    Click here to request your free trial access!

    Already subscribed? Log in!

    The Ultimate Scientific and Technical Reference

    A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
    + More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
    From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

    This article is included in

    Electronics

    This offer includes:

    Knowledge Base

    Updated and enriched with articles validated by our scientific committees

    Services

    A set of exclusive tools to complement the resources

    Practical Path

    Operational and didactic, to guarantee the acquisition of transversal skills

    Doc & Quiz

    Interactive articles with quizzes, for constructive reading

    Subscribe now!

    Ongoing reading
    Shape and wave defects
    Outline