US3752999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading apparatus for optically discernible characters
Assignee: Zellweger Uster AG
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Filing: 1972-01-28
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Granted: 1973-08-14
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Expires: 1992-01-28
Abstract
Abstract A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat comprising means for producing an optical transmitted light beam, a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means. Receiver means responsive to changes in the reflected light receive a light beam reflected by the character. The means for producing the transmitted light beam is arranged such that a surface or plane in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at the receiver means.
Inventors
- 👤 E Sick
- 👤 G Pinior
- 👤 J Plockl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:36
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
244 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beamproducing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, said means producing the transmitted light beam being closed at the beam exit location by a cylindrical lens member functioning as a transmitting lens, the length of which is at least equal to the scanning amplitude at the location of said cylindrical lens member, and an additional lens member defining a receiving lens located at a narrow side of the beam exit location, said additional lens member extending at a larger angle relative to the perpendicular taken with regard to the reference plane than said angle enclosed by said transmitted light beam, the length of said additional lens means being at least substantially equal to the scanning amplitude.
Claim 2
Dependent Claim
244 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beamproducing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, said means producing the transmitted light beam being closed at the beam exit location by a cylindrical lens member functioning as a transmitting lens, the length of which is at least equal to the scanning amplitude at the location of said cylindrical lens member, and an additional lens member defining a receiving lens located at a narrow side of the beam exit location, said additional lens member extending at a larger angle relative to the perpendicular taken with regard to the reference plane than said angle enclosed by said transmitted light beam, the length of said additional lens means being at least substantially equal to the scanning amplitude.
Claim 3
Dependent Claim
17 words
The reading apparatus as defined in claim 1, wherein said additional lens member is a cylindrical lens.
Claim 4
Dependent Claim
180 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, said means producing said transmitted light beam possesses a mounting wall arranged at least substantially at said enclosed angle with respect to the perpendicular taken with regard to said reference plane, said transmitted light beam-producing means embodying optical elements secured to said mounting wall.
Claim 5
Dependent Claim
180 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, said means producing said transmitted light beam possesses a mounting wall arranged at least substantially at said enclosed angle with respect to the perpendicular taken with regard to said reference plane, said transmitted light beam-producing means embodying optical elements secured to said mounting wall.
Claim 6
Dependent Claim
33 words
The reading apparatus as defined in claim 3, further including a cover wall foR covering the side of said means producing the transmitted light beam and which is situated opposite said mounting wall.
Claim 7
Dependent Claim
22 words
The reading apparatus as defined in claim 4, wherein said receiver means embodies components secured to the outside of said cover wall.
Claim 8
Dependent Claim
187 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, and a deflecting member for deflecting the transmitted light beam prior to its departure out of said means producing the transmitted light beam and into a surface which encloses together with the perpendicular taken with regard to the reference plane an angle which reduces the specular reflections at the receiver means.
Claim 9
Dependent Claim
187 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, and a deflecting member for deflecting the transmitted light beam prior to its departure out of said means producing the transmitted light beam and into a surface which encloses together with the perpendicular taken with regard to the reference plane an angle which reduces the specular reflections at the receiver means.
Claim 10
Dependent Claim
204 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, a housing, said means producing said transmitted light beam incorporating an inclined member forming together with said housing a corner compartment, said generating means including driven beam deflecting means for the deflection of the transmitted light beam, said beam deflecting means being arranged near the lower region of said inclined member, the drive for said driven beam deflecting means being at least partially accommodated at said corner compartment.
Claim 11
Dependent Claim
204 words
A reading apparatus for optically discernible characters, particularly optically discernible characters associated with an article and applied thereto or thereat, comprising means for producing an optical transmitted light beam, said producing means incorporating means for generating a moved transmitted light beam directed towards a reference plane with regard to which the character to be read is arranged or moves within predetermined spatial limits departing from said transmitted light beam-producing means, receiver means responsive to changes in the reflected light for receiving a light beam reflected by the character, said means for producing the transmitted light beam being arranged such that a surface in which the transmitted beam moves prior to arriving at the character together with a perpendicular taken with regard to the reference plane encloses an angle which reduces specular reflections at said receiver means, a housing, said means producing said transmitted light beam incorporating an inclined member forming together with said housing a corner compartment, said generating means including driven beam deflecting means for the deflection of the transmitted light beam, said beam deflecting means being arranged near the lower region of said inclined member, the drive for said driven beam deflecting means being at least partially accommodated at said corner compartment.
Claim 12
Dependent Claim
22 words
The reading apparatus as defined in claim 7, wherein said corner compartment is capable of accommodating electronic components of the reading apparatus.
References Cited (Backward Citations)
US2976362A
Cited
US3062965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |