Optical Fiber Image Evaluation Studies.
Abstract
Photographic studies of the imaging properties of multiple fibers were conducted utilizing a point target array. Photographic negatives of the target and image arrays are scanned with a microdensitometer, reducing the images to digital data. The digital data are analyzed on a computer. The output of the programs consists of a map of the error vectors between the positions of the target points and image points, yielding displacement, and various average point spread functions. The error map provides a map of the transmission pattern from which average point spread function maps are derived. The derived average point spread functions of the image are anisotropic due to the fiber patterns and this anistropy is displayed in a three-dimensional projection. With the exception of the standard deviation measure of distortion, no single number result for fiber optic imaging properties has been developed. However, the techniques developed will provide a quantitative measure of point displacement and will provide a statistical analysis of point spread functions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1970
- Accession Number
- AD0869699
Entities
People
- Arnold C. Williams
- John E. Desautels
- Louis E. Sahr