Title :
Hologram lenses lead to compact scanners
Author :
Inagaki, Takefumi
Author_Institution :
Fujitsu Lab. Ltd., Atsugi, Japan
fDate :
3/1/1989 12:00:00 AM
Abstract :
The development of compact, low-height bar code readers for European supermarkets, where clerks sit at checkstands arranged much like office desks, is described. The technology used to meet all the requirements for this application is described. The resulting reader features advanced hologram lenses, for less-expensive optics and greater efficiency.<>
Keywords :
bar codes; holographic optical elements; lenses; mark scanning equipment; European supermarkets; bar code readers; compact scanners; hologram lenses; Holographic optical components; Holography; Laser beams; Laser theory; Lenses; Optical beams; Optical films; Optical recording; Optical refraction; Optical scattering;
Journal_Title :
Spectrum, IEEE
