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Computer-aided lens assembly.

Richard Tomlinson1, Rob Alcock, Jon Petzing

  • 1Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Ashby Road, Loughborough, Leicestershire, LE11 3TU, United Kingdom.

Applied Optics
|February 10, 2004
PubMed
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This study introduces a computer-aided lens manufacturing method enabling concurrent assembly, adjustment, and testing. It precisely aligns optical elements by comparing physical and numerical ray tracing for improved performance.

Area of Science:

  • Optical Engineering
  • Manufacturing Technology
  • Computational Optics

Background:

  • Traditional lens manufacturing involves sequential assembly, adjustment, and testing, which can be time-consuming and inefficient.
  • Accurate alignment of optical elements is critical for achieving desired lens performance.

Purpose of the Study:

  • To develop a computer-aided method for concurrent lens assembly, adjustment, and testing.
  • To enable iterative refinement of optical element alignment until performance criteria are met.

Main Methods:

  • Utilizing physical ray tracing with Gaussian laser beams and comparing results with numerical geometric ray traces.
  • Estimating misalignment errors based on ray trace comparisons.
  • Iteratively adjusting individual lens elements to minimize misalignment.

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Main Results:

  • Demonstrated a computer-aided approach for efficient lens alignment.
  • Successfully applied the method to an air-spaced doublet, achieving acceptable optical performance.
  • Enabled concurrent phases of manufacturing, reducing overall production time.

Conclusions:

  • The proposed computer-aided method significantly enhances lens manufacturing efficiency.
  • This approach allows for precise alignment of optical elements, leading to improved performance.
  • The concurrent assembly, adjustment, and testing strategy is effective for complex lens systems.