The Production and Evaluation of Holographic Lenses.
Abstract
An experimental study was made to determine the optimum procedure for making both reflection and transmission bleached holographic lenses on Kodak's 649-F plates. Several bleaches were used, with the highest efficiencies (40%) occurring for the transmission lenses. The imaging ability of these lenses was determined by imaging an Air Force Resolution Chart through each lens and recording this image on 649-F plates. These plates were then scanned with a microdensitometer to determine the square wave modulation response of the lenses. Their performance dropped significantly when the spatial coherence of the reconstructing beam was reduced by placing a ground glass diffuser behind the resolution slide. The low order aberrations inherent in holographic lenses were largely compensated for by rotating the object or image plane about an axis perpendicular to the plane formed by the principal axes of the holographic lens. The transmission lenses were markedly better than the reflection lenses, with their maximum modulation response being 80% and best resolution at the object of 70 lines/mm. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1973
- Accession Number
- AD0764701
Entities
People
- Rickey Charles Seid
Organizations
- Air Force Institute of Technology