Measuring Curvature of Mirrors Using Image Analysis

Paper #:
  • 980917

Published:
  • 1998-02-23
Citation:
Helder, D., "Measuring Curvature of Mirrors Using Image Analysis," SAE Technical Paper 980917, 1998, https://doi.org/10.4271/980917.
Author(s):
Pages:
8
Abstract:
This paper describes a method for measuring the radius of curvature of mirrors by measuring the size of the reflected image. The image is generated by a video camera, captured using an image grabber board and analyzed using custom software on a standard computer. The system is shown to be capable to higher resolution than the current SAE defined spherometer and capable of determining radius of curvature over a smaller area. The latter is particularly important in using the system for measuring aspheric mirrors.
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