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Related Experiment Videos

Precision molded-glass optics.

R O Maschmeyer1, C A Andrysick, T W Geyer

  • 1Corning Glass Works, Research & Development Laboratories, Corning, New York 14831, USA.

Applied Optics
|August 15, 1983
PubMed
Summary
This summary is machine-generated.

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High-precision molding of specialty glass lenses achieved remarkable results. Tolerances for surface figure, thickness, diameter, wedge, birefringence, and index homogeneity were met, applicable to aspheric lens molding.

Area of Science:

  • Optical Engineering
  • Materials Science

Background:

  • High-precision molding is crucial for advanced optical components.
  • Specialty glass compositions offer unique refractive properties.

Purpose of the Study:

  • To report on high-precision molding results for glass lenses.
  • To demonstrate achievable tolerances in molded optical elements.

Main Methods:

  • Focus on molding an 8-mm diameter lens with a 0.4 numerical aperture (N.A.).
  • Utilized a specialty glass with a refractive index of 1.604 and Abbe number of 50.

Main Results:

  • Achieved relative surface figure replication of 0.06 Airy units (Aim).
  • Met thickness and diameter tolerances of ±10 micrometers (µm).

Related Experiment Videos

  • Demonstrated wedge <10⁻³ radians, birefringence <1/100 wave, and index homogeneity to the sixth decimal place.

    • Conclusions:

    • The reported results are directly applicable to molding precision glass aspheric lenses.
    • These findings set a benchmark for high-tolerance optical lens manufacturing.