Multiple plane scanning system for data reading applications
First Claim
1. A scanner for reading symbols on an object being passed through a scan volume, comprising:
- a housing includinga first housing section having a first window which is oriented horizontally below the scan volume,a second housing section connected to the first housing section, the second housing section having a second window which is oriented generally vertically to a lateral side of the scan volume,a third housing section having a third window which is oriented obliquely to a lateral side of the scan volume;
an optical scanning element within the housing;
at least first and second optical beams which are directed from different directions onto the optical scanning element to produce (a) a first set of scanning beams being directed out the first window, (b) a second set of scanning beams being directed out the second window and (c) a third set of scanning beams being directed out the third window.
6 Assignments
0 Petitions
Accused Products
Abstract
An optical system and method for data reading. The preferred system is directed to a scanner which includes a multiple beam source, such as a laser diode and a beam splitter which generates first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam is being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan the bottom and all lateral sides of an object being passed through the scan volume.
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Citations
9 Claims
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1. A scanner for reading symbols on an object being passed through a scan volume, comprising:
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a housing including a first housing section having a first window which is oriented horizontally below the scan volume, a second housing section connected to the first housing section, the second housing section having a second window which is oriented generally vertically to a lateral side of the scan volume, a third housing section having a third window which is oriented obliquely to a lateral side of the scan volume; an optical scanning element within the housing; at least first and second optical beams which are directed from different directions onto the optical scanning element to produce (a) a first set of scanning beams being directed out the first window, (b) a second set of scanning beams being directed out the second window and (c) a third set of scanning beams being directed out the third window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification