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New procedure for making schmidt corrector plates.

G Lemaître

    Applied Optics
    |February 2, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new dioptric elasticity method creates precise Schmidt plates with smooth Kerber profiles. This technique offers a more convenient approach for producing highly aspherical surfaces compared to previous methods.

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    Area of Science:

    • Optical Engineering
    • Materials Science

    Background:

    • Schmidt plates are crucial optical components for correcting aberrations in astronomical telescopes.
    • Traditional methods for fabricating aspherical Schmidt plates can be complex and time-consuming.
    • Achieving highly aspherical surfaces, such as F/1, presents significant manufacturing challenges.

    Purpose of the Study:

    • To introduce and detail a novel dioptric elasticity method for manufacturing Schmidt plates.
    • To demonstrate the effectiveness of this new method in producing superior aspherical surfaces.
    • To provide a more convenient and efficient alternative to existing Schmidt plate fabrication techniques.

    Main Methods:

    • Utilizing elastic deformation of an oversized disk supported by a narrow metal ring.
    • Applying a partial vacuum beneath the disk to induce controlled elastic deformation.
    • Working the elastically deformed disk to a flattened state before removing the applied loads.

    Main Results:

    • The method reliably produces Schmidt plates with an excellent, smooth Kerber profile.
    • Highly aspherical surfaces (F/1) are achieved with high precision and quality.
    • The dioptric elasticity method proves more convenient and effective than Schmidt's original approach.

    Conclusions:

    • The dioptric elasticity method is a viable and advantageous technique for fabricating high-quality Schmidt plates.
    • This method facilitates the production of advanced optical components with demanding aspherical surface requirements.
    • The described elasticity theory and shop methods support the successful implementation of this technique.