Patent US5852288A successfully refreshed from Google Patents.
US5852288A
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US
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Bar code scanning apparatus
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1995-09-13
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Granted: 1998-12-22
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Expires: 2015-09-13
Abstract
Abstract A bar code scanning apparatus in which the visual field of a lens system is extended as outwardly exceeding the width of an opening of a case body in which the apparatus is housed, such that a bar code wider than the width of the opening can be scanned. A bar code wider than the width of the opening can be scanned with the opening coming in contact with the bar code. Thus, a wide bar code can be scanned without the bar code scanning apparatus increased in width and length.
Inventors
- 👤 Atsushi Nakazawa
- 👤 Mitsuru Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:32
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10831; G06K7/10554; G06K7/10594
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
132 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at the opening; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening of the case body, and wherein the case body has lateral sides having slits which communicate with the opening so as not to interrupt optical paths in the visual field of the lens system, thereby enabling the image to be formed on the image sensor when the apparatus is positioning so that the opening is in contact at the read surface.
Claim 2
Dependent Claim
132 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at the opening; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening of the case body, and wherein the case body has lateral sides having slits which communicate with the opening so as not to interrupt optical paths in the visual field of the lens system, thereby enabling the image to be formed on the image sensor when the apparatus is positioning so that the opening is in contact at the read surface.
Claim 3
Dependent Claim
25 words
A bar code scanning apparatus according to claim 1, wherein the case body is fan shaped at the opening so as to spread the opening.
Claim 4
Dependent Claim
36 words
A bar code scanning apparatus according to claim 1, further comprising light sources for illuminating the read surface, disposed in a plane including a bar code scanning axis and an optical axis of the lens system.
Claim 5
Dependent Claim
73 words
A bar code scanning apparatus according to claim 3, wherein the light sources are disposed at opposite left and right lateral sides of the optical axis of the lens system such that the light sources disposed at the left side of the optical axis illuminate the right side of the bar code, and the light sources disposed at the right side of the optical axis illuminate the left side of the bar code.
Claim 6
Dependent Claim
77 words
A bar code scanning apparatus according to claim 1, further comprising light sources for illuminating the read surface, including first light sources for illuminating an open zone of the opening, and second light sources for illuminating zones outside of lateral ends of the opening, the first light sources being disposed out of a plane including a bar code scanning axis and an optical axis of the lens system, the second light sources being disposed in said plane.
Claim 7
Dependent Claim
140 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening and a portion projecting from the opening from one side of the case body; a light source disposed at a side of the case body opposite to the one side; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at a tip portion of the projecting portion; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening of the case body, so that with the tip portion in contact with the read surface at a distance from the opening, an image of the bar code is formed at the image sensor.
Claim 8
Dependent Claim
140 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening and a portion projecting from the opening from one side of the case body; a light source disposed at a side of the case body opposite to the one side; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at a tip portion of the projecting portion; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening of the case body, so that with the tip portion in contact with the read surface at a distance from the opening, an image of the bar code is formed at the image sensor.
Claim 9
Dependent Claim
26 words
A bar code scanning apparatus according to claim 6, wherein the tip portion is formed with a planar surface that defines a bar code reading angle.
Claim 10
Dependent Claim
36 words
A bar code scanning apparatus according to claim 6, further comprising light sources for illuminating the read surface, disposed in a plane including a bar code scanning axis and an optical axis of the lens system.
Claim 11
Dependent Claim
73 words
A bar code scanning apparatus according to claim 8, wherein the light sources are disposed at opposite left and right lateral sides of the optical axis of the lens system such that the light sources disposed at the left side of the optical axis illuminate the right side of the bar code, and the light sources disposed at the right side of the optical axis illuminate the left side of the bar code.
Claim 12
Dependent Claim
67 words
A bar code scanning apparatus according to claim 6, further comprising light sources for illuminating the read surface, including first light sources for illuminating an open zone of the opening, and second light sources for illuminating zones outside of lateral ends of the opening, the second light sources being disposed in a plane including a bar code scanning axis and an optical axis of the lens system.
Claim 13
Dependent Claim
134 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening and being fan-shaped at the opening so as to spread the opening; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at a center portion of the opening; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening, and wherein the case body does not interrupt optical paths in the visual field of the lens system, thereby enabling the image to be formed on the image sensor when the apparatus is positioned so that the center portion of the opening is at the read surface.
Claim 14
Dependent Claim
134 words
A bar code scanning apparatus for forming an image of a bar code disposed on a read surface, comprising: a case body having an opening and being fan-shaped at the opening so as to spread the opening; an image sensor housed in the case body; a lens system housed in the case body, the lens system having a focusing point at a center portion of the opening; wherein a visual field of the lens system at the focusing point extends outwardly exceeding a width of the opening, and wherein the case body does not interrupt optical paths in the visual field of the lens system, thereby enabling the image to be formed on the image sensor when the apparatus is positioned so that the center portion of the opening is at the read surface.
Claim 15
Dependent Claim
36 words
A bar code scanning apparatus according to claim 11, further comprising light sources for illuminating the read surface, disposed in a plane including a bar code scanning axis and an optical axis of the lens system.
Claim 16
Dependent Claim
73 words
A bar code scanning apparatus according to claim 12, wherein the light sources are disposed at opposite left and right lateral sides of the optical axis of the lens system such that the light sources disposed at the left side of the optical axis illuminate the right side of the bar code, and the light sources disposed at the right side of the optical axis illuminate the left side of the bar code.
Claim 17
Dependent Claim
67 words
A bar code scanning apparatus according to claim 11, further comprising light sources for illuminating the read surface, including first light sources for illuminating an open zone of the opening, and second light sources for illuminating zones outside of lateral ends of the opening, the second light sources being disposed in a plane including a bar code scanning axis and an optical axis of the lens system.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-21 | 2002-06-22 | 2002-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-21 | 2006-06-22 | 2006-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-21 | 2010-06-22 | 2010-12-22 | $7700.00 | Window Closed / Lapsed |