Two-dimensional holographic deflection and scanning system
Abstract
The feasibility of holographic scanners as universal product code label readers is demonstrated by fabrication of several multihologram disk scanners which generate suitable lattice scan patterns. Holographic scanners can be used to replace some polygons, mirrors, and lenses, which are high-cost components of mechanical scanners currently used in supermarket point-of-sale scanner systems. The theoretical principles and construction of the holographic scanners are described, and the copying of holograms on dichromated gelatin is explained. Advantages of holographic scanners in comparison with mechanical scanners are listed.
- Publication:
-
Electro-Optics/Laser Conference and Exposition
- Pub Date:
- 1977
- Bibcode:
- 1977eol..conf..755C
- Keywords:
-
- Hologrammetry;
- Holography;
- Laser Applications;
- Optical Data Processing;
- Optical Scanners;
- Photographic Recording;
- Chromates;
- Fabrication;
- Gelatins;
- Photographic Emulsions;
- Photographic Plates;
- Photographic Processing;
- Systems Analysis;
- Instrumentation and Photography