The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2003
Filed:
Oct. 21, 1999
Masanori Ohkawa, Kawasaki, JP;
Toshiyuki Ichikawa, Atsugi, JP;
Hiroshi Watanuki, Machida, JP;
Kozo Yamazaki, Hatano, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A multi-head optical scanning device used for a bar code reader having a reduced thickness and realizing more complete 360° bar code reading. The scanning device includes a bottom part, a side part which is nearly vertical to the bottom part, a light source, a polygon mirror and a light detector contained inside the body of the side part. Light beams are emitted from the light source so that they are nearly vertical to the surface of the bottom part, and the polygon mirror has a rotation axis at a position which is nearly parallel to the surface of the bottom part. The optical scanning device eliminates the need for a mechanism which performs scanning inside the bottom part and the degree of freedom with which each of the pattern mirrors is disposed is increased, and provides a scanning pattern whose reading capacity can be upgraded by using a scanning pattern which is emitted from the bottom part.