US3947816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omnidirectional optical scanning apparatus
Assignee: International Business Machines Corp
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Filing: 1974-07-01
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Granted: 1976-03-30
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Expires: 1994-07-01
Abstract
Abstract An omnidirectional optical system is arranged for scanning bar coded labels passing a rectangular scanning window with a plurality of interlaced scans in a plurality of differing directions whereby the labels are completely scanned irrespective of orientation. The interlaced and plural directive scanning rays are generated by directing a beam of light, from a laser or like light source, onto a rotating multi-faceted mirror for deflecting the light beam in a line extending in a given direction. A set of fixed mirrors is positioned to deflect the light beam in a number of laterally displaced scanning segments all parallel to the line extending in the given direction. A pair of fixed end mirrors are arranged for reflecting the light from half of the segments back onto the other half of the segments to provide the intersecting scanning pattern. Beam splitting mirrors are interposed in the light beam from the laser for providing additional light beams directed onto the rotating mirror to provide an interlaced raster.
Inventors
- 👤 Melbourne Edward Rabedeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:10
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
157 words
Omnidirectional optical scanning apparatus for scanning bar coded labels, comprising an elongated scanning window at which said labels are presented in random orientation, optical means for generating a beam of light, optical means arranged with respect to said generating means for deflecting said beam of light along a line in a given plane intersecting the plane of said scanning window at a predetermined angle to the longitundinal axis of said window, optical means interposed between said deflecting means and said scanning window for dividing said deflected beam of light along said line into scanning segments and offsetting said segments with respect to each other intersecting the plane of said scanning window at the same predetermined angle for producing a multiple of scans across said scanning window, and optical means intercepting a portion of said deflected light beam scanning segments and reflecting the intercepted scanning segments over to and intersecting the other scanning segments within said scanning window.
Claim 2
Dependent Claim
157 words
Omnidirectional optical scanning apparatus for scanning bar coded labels, comprising an elongated scanning window at which said labels are presented in random orientation, optical means for generating a beam of light, optical means arranged with respect to said generating means for deflecting said beam of light along a line in a given plane intersecting the plane of said scanning window at a predetermined angle to the longitundinal axis of said window, optical means interposed between said deflecting means and said scanning window for dividing said deflected beam of light along said line into scanning segments and offsetting said segments with respect to each other intersecting the plane of said scanning window at the same predetermined angle for producing a multiple of scans across said scanning window, and optical means intercepting a portion of said deflected light beam scanning segments and reflecting the intercepted scanning segments over to and intersecting the other scanning segments within said scanning window.
Claim 3
Dependent Claim
50 words
Omnidirectional optical scanning apparatus as defined in claim 1 and incorporating optical means interposed between said light beam generating means and said optical deflecting means for splitting said beam into a plurality of like beams arranged at different angles for producing a multiple of interlaced scans across said scanning window.
Claim 4
Dependent Claim
28 words
Omnidirectional optical scanning apparatus as defined in claim 1 and wherein said predetermined angle is one at which said scanning segments overlap one another within said scanning window.
Claim 5
Dependent Claim
133 words
Omnidirectional optical scanning apparatus for scanning bar coded labels comprising an elongated scanning window at which said labels are presented in random orientation, a light source providing a beam of light, a multifaceted mirror arranged for continuous rotation, said light source and said rotating mirror being arranged with respect to said scanning window in angular relationship at which said beam of light is deflected over a line lying at a predetermined angle to the longitudinal axis of said window is scanned by said beam of light, and a multiple of fixed mirrors arranged along said line and interposed between said multifaceted mirror and said scanning window for dividing the deflected beam of light at said line and offsetting the divisional segments thereof into segments scanning consecutively across said window at said predetermined angle.
Claim 6
Dependent Claim
133 words
Omnidirectional optical scanning apparatus for scanning bar coded labels comprising an elongated scanning window at which said labels are presented in random orientation, a light source providing a beam of light, a multifaceted mirror arranged for continuous rotation, said light source and said rotating mirror being arranged with respect to said scanning window in angular relationship at which said beam of light is deflected over a line lying at a predetermined angle to the longitudinal axis of said window is scanned by said beam of light, and a multiple of fixed mirrors arranged along said line and interposed between said multifaceted mirror and said scanning window for dividing the deflected beam of light at said line and offsetting the divisional segments thereof into segments scanning consecutively across said window at said predetermined angle.
Claim 7
Dependent Claim
49 words
Omnidirectional optical scanning apparatus as defined in claim 4 and incorporating an optical beam splitting mirror assembly interposed between said laser and said multifaceted mirror for producing a plurality of beams projected onto said mirror at different angles at which the scanning beams across said scanning window are interlaced.
Claim 8
Dependent Claim
31 words
Omnidirectional optical scanning apparatus as defined in claim 4 and wherein two of said multiple mirrors are arranged at the ends of said window and depend thereform parallel to each other.
Claim 9
Dependent Claim
58 words
Omnidirectional optical scanning apparatus as defined in claim 6 and wherein the remainder of said multiple mirrors are arranged on a line at the center thereof at an angle of substantially 45° to the longitudinal axis of said scanning window, and each mirror is also arranged at an angle with respect to the other mirrors on said line.
Claim 10
Dependent Claim
33 words
Omnidirectional optical scanning apparatus as defined in claim 7 and wherein the mirrors of said remainder of multiple mirrors at the ends of said line are slightly convex for increasing the focal length.
Claim 11
Dependent Claim
50 words
Omnidirectional optical scanning apparatus as defined in claim 4 and incorporating a photoresponsive device arranged for intercepting light from said scanning window as reflected by said label, and electric signal translating circuitry coupled to said photoresponsive device for producing an electric signal indicative of the information borne by said label.
Claim 12
Dependent Claim
24 words
Omnidirectional optical scanning apparatus as defined in claim 4 and wherein said scanning window is an elongated rectangle having an aspect ratio of 10:1.
Claim 13
Dependent Claim
19 words
Omnidirectional optical scanning apparatus as defined in claim 10 and wherein sixteen crossed scans appear in said scanning window.
Claim 14
Dependent Claim
23 words
Omnidirectional optical scanning apparatus as defined in claim 10 and wherein said scanning segment intersect at angles of 90° within said scanning window.
Claim 15
Dependent Claim
23 words
Omnidirectional optical scanning apparatus as defined in claim 10 and wherein said scanning segment intersect at angles of 80° within said scanning window.
Claim 16
Dependent Claim
149 words
Omnidirectional optical scanning apparatus for scanning bar coded labels comprising an elongated scanning window at which said labels are presented in random orientation, a light source providing a beam of light, a multifaceted mirror arranged for continuous rotation, said light source and said rotating mirror being arranged with respect to said scanning window in angular relationship at which said beam of light is deflected over a line lying at a predetermined angle to the longitudinal axis of said window is scanned by said beam of light, and a multiple of fixed mirrors arranged along said line and interposed between said multifaceted mirror and said scanning window for dividing the deflected beam of light at said line and offsetting the divisional segments thereof into segments scanning consecutively across said window at a rate imparting the appearance to the eye of scanning substantially simultaneously across said window at said predetermined angle.
Claim 17
Dependent Claim
149 words
Omnidirectional optical scanning apparatus for scanning bar coded labels comprising an elongated scanning window at which said labels are presented in random orientation, a light source providing a beam of light, a multifaceted mirror arranged for continuous rotation, said light source and said rotating mirror being arranged with respect to said scanning window in angular relationship at which said beam of light is deflected over a line lying at a predetermined angle to the longitudinal axis of said window is scanned by said beam of light, and a multiple of fixed mirrors arranged along said line and interposed between said multifaceted mirror and said scanning window for dividing the deflected beam of light at said line and offsetting the divisional segments thereof into segments scanning consecutively across said window at a rate imparting the appearance to the eye of scanning substantially simultaneously across said window at said predetermined angle.
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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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |