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US 6,712,273 B1Granted
Versatile method and system for VCSEL-based bar code scanner
AssigneeHoneywell International Inc.
InventorsNorman B Stapleton, Ronnie Lynn Warkentine, Ronald W. Chandler
Life of this patent
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Abstract
A versatile system and method for VCSEL (vertical cavity surface emitting laser) bar code and data scanning is disclosed, including a housing (102) having a scanning surface (116), a detector element (106) disposed within the housing in close proximity and normal to the scanning surface, a VCSEL component (104) disposed within the housing in close proximity to the detector element and scanning surface, and an aperture (122) formed within the housing between the scanning surface and the detector element.
Claims24
A scanning device comprising:
- a housing having a scanning surface and an aperture;
- a detector proximate to the aperture;
- and
- a vertical cavity surface emitting laser (VCSEL) light source proximate to the aperture;
- and
- wherein:
- said VCSEL has an axis of emission that is at an angle relative to the scanning surface;
- and
- the angle of the axis of emission is at a magnitude such that light diffused from a target area approximately parallel to the scanning surface is at about maximum intensity.
6 more elements
A scanning device comprising:
- a housing having a scanning surface, a first aperture and a second aperture;
- a first detector proximate to the first aperture, and
- a first vertical cavity surface emitted laser (VCSEL) proximate to the first aperture;
- and
- a second detector proximate to the second aperture;
- and
- a second VCSEL proximate to the second aperture;
- wherein
- said first VCSEL has an axis of emission that is at an angle relative to the scanning surface;
- and
- the angle of the axis of emission is at a magnitude such that light diffused from a target area approximately parallel to the scanning surface is at about maximum intensity as may be sensed by said first detector.
8 more elements
A scanning means comprising:
- means for sourcing laser light;
- means for detecting light;
- and
- means for housing said means for sourcing laser light, said means for detecting light, a scanning surface proximate to said means for sourcing laser light, and an aperture situated in the scanning surface;
- and
- wherein:
- said means for sourcing laser light has an axis of emission that is at an angle relative to the scanning surface;
- and
- the angle of the axis of emission is of a magnitude such that light diffused from a target area approximately parallel to the scanning surface is at about maximum intensity.
6 more elements
A scanning device comprising:
- a plurality of VCSELs;
- a plurality of detectors;
- and
- a housing containing said plurality of VCSELs and said plurality of detectors, and having a scanning surface and at least one aperture situated in the scanning surface;
- and
- wherein:
- at least one VCSEL of said plurality of VCSELs has an axis of emission that is at an angle relative to the scanning surface;
- and
- the angle of the axis of emission is of a magnitude such that light diffused from a target area approximately parallel to the scanning surface is at about maximum intensity.
6 more elements
A method for scanning comprising:
- sourcing laser light of a VCSEL onto a target area at an angle relative to the target area;
- detecting light from the target area;
- and
- adjusting the angle of the sourcing laser light relative to the target area so that the light diffused from the target area that is being detected is approximately at a maximum intensity.
1 more element
A scanning device comprising:
- a scanning surface having an aperture;
- a detector proximate to the aperture;
- and
- a laser light source proximate to the aperture;
- and
- wherein:
- said laser light source has an axis of emission that is at an angle relative to the scanning surface;
- and
- the angle of the axis of emission is at a magnitude such that light diffused from a target are approximately parallel to the scanning surface is at about maximum intensity.
6 more elements
A scanning device comprising:
- a housing having a scanning surface, a first aperture and a second aperture;
- a first detector proximate to the first aperture;
- and
- a first laser light source proximate to the first aperture;
- and
- a second detector proximate to the second aperture;
- and
- a second laser light source proximate to the second aperture;
- wherein:
- said first laser light source and first detector are for data retrieval;
- and
- said second laser light source and second detector are for clocking.
9 more elements
Dependencies are inferred from the claim text.