Patent US3562426A successfully refreshed from Google Patents.
US3562426A
Expired / Lapsed
US
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Facsimile scanner with rotating optical fiber and optical correction
Assignee: Alcatel CIT SA
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Filing: 1968-03-29
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Granted: 1971-02-09
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Expires: 1988-03-29
Abstract
Abstract Facsimile apparatus wherein a mark on a flat document is correlated with an electrical signal through an optical link comprising essentially a wide angle objective lens projecting an image from said document on a first plane mirror, a cylindrical surface receiving said image from said first plane mirror, at least one optical fiber rotating about the axis of said cylindrical surface with an extremity close to said surface, a second plane mirror receiving an image from said optical fiber and an electro-optical device detecting the image from said second plane mirror.
Inventors
- 👤 Jean Lavergne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:43
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/126; H04N1/1295
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
150 words
Facsimile apparatus for use in connection with an electrical transmission link comprising: first and second stations at which images may be formed; optical means including a lens provided in the form of an uncorrected wide-angle objective lens capable of forming either a cylindrical image at said second station from a planar image at said first station or a planar image at said first station from a cylindrical image at said second station, for transmitting images between said first and second stations; an electro-optical transducer; at least one optical fiber for transmitting light between said second station and said electro-optical transducer; and mechanical means for rotating said optical fiber in a plane about an axis so as to move one end thereof successively past said second station in optical communication therewith, the other end of said optical fiber being positioned on said axis of rotation in optical communication with said transducer.
Claim 2
Dependent Claim
150 words
Facsimile apparatus for use in connection with an electrical transmission link comprising: first and second stations at which images may be formed; optical means including a lens provided in the form of an uncorrected wide-angle objective lens capable of forming either a cylindrical image at said second station from a planar image at said first station or a planar image at said first station from a cylindrical image at said second station, for transmitting images between said first and second stations; an electro-optical transducer; at least one optical fiber for transmitting light between said second station and said electro-optical transducer; and mechanical means for rotating said optical fiber in a plane about an axis so as to move one end thereof successively past said second station in optical communication therewith, the other end of said optical fiber being positioned on said axis of rotation in optical communication with said transducer.
Claim 3
Dependent Claim
60 words
Facsimile apparatus as defined in claim 1 wherein said first station is disposed transversely to said second station and the axis of said lens is transverse to said first station, said optical means further including a first plane mirror inclined to the axis of said lens and positioned in the light transmission path between said lens and said second station.
Claim 4
Dependent Claim
23 words
Facsimile apparatus as defined in claim 1 wherein said electro-optical transducer is a photodetector for converting a light image into an electrical signal.
Claim 5
Dependent Claim
34 words
Facsimile apparatus as defined in claim 1 wherein said electro-optical transducer is provided as a light modulator including a Kerr cell positioned between a light source and said other end of said optical fiber.
Claim 6
Dependent Claim
62 words
Facsimile apparatus as defined in claim 1 wherein said optical fiber is mounted in a rotary member in the form of a disc having a central core within which said other end of said optical fiber is positioned, said electro-optical transducer being positioned in an opaque enclosure connected to said core by light trap means for preventing light from passing said connection.
Claim 7
Dependent Claim
30 words
Facsimile apparatus as defined in claim 5 wherein said light trap means is formed by engaging projections and grooves in the respective parts of said connection forming a serpentine path.
Claim 8
Dependent Claim
65 words
Facsimile apparatus as defined in claim 1 wherein said optical fiber is carried by a rotary member in the form of a disc driven by said mechanical means and formed of a core member whose axis coincides with said axis of rotation, an annular leg portion about said core member and a flange portion at the circumference of said leg portion parallel to said axis.
Claim 9
Dependent Claim
39 words
Facsimile apparatus as defined in claim 7 wherein said one end of said optical fiber is positioned in said flange portion and faces said axis, and said other end of said optical fiber is positioned in said core member.
Claim 10
Dependent Claim
100 words
Facsimile apparatus as defined in claim 8, wherein a plurality of optical fibers are carried by said disc, one end of each of said optical fibers being positioned in said flange portion and facing said axis, the other end of each optical fiber terminating at a common point in said core member, said fibers being angularly equally spaced in said disc. 10 Facsimile apparatus as defined in claim 1 wherein a plurality of optical fibers are disposed in said plane of rotation at equal angles about said axis of rotation and being moved as a unit by said mechanical means.
Claim 11
Dependent Claim
39 words
Facsimile apparatus as defined in claim 10 wherein a movable carrier means is provided at said first station including means for effecting movement thereof at a rate proportional to the speed of rotation and number of said optical fibers.
Claim 12
Dependent Claim
33 words
Facsimile apparatus as defined in claim 11 wherein said electro-optical transducer is a photomultiplier and said carrier means carries an object illuminated by a light source to provide an image to be detected.
Claim 13
Dependent Claim
35 words
Facsimile apparatus as defined in claim 11 wherein said electro-optical transducer is light modulator means responsive to an electrical signal for providing a light image to be detected and said carrier means carries photosensitive paper.
Claim 14
Dependent Claim
128 words
Facsimile apparatus for use in connection with an electrical transmission link comprising first and second stations at which images may be formed, optical means for transmitting images between said first and second stations, an electro-optical transducer, at least one optical fiber for transmitting light between said second station and said electro-optical transducer, and mechanical means for rotating said optical fiber in a plane about an axis so as to move one end thereof successively past said second station in optical communication therewith, the other end of said optical fiber being positioned on said axis of rotation in optical communication with said transducer, wherein said second station is defined by adjustable screen means for defining a cylindrical space adjacent the path of said one end of said optical fiber.
Claim 15
Dependent Claim
128 words
Facsimile apparatus for use in connection with an electrical transmission link comprising first and second stations at which images may be formed, optical means for transmitting images between said first and second stations, an electro-optical transducer, at least one optical fiber for transmitting light between said second station and said electro-optical transducer, and mechanical means for rotating said optical fiber in a plane about an axis so as to move one end thereof successively past said second station in optical communication therewith, the other end of said optical fiber being positioned on said axis of rotation in optical communication with said transducer, wherein said second station is defined by adjustable screen means for defining a cylindrical space adjacent the path of said one end of said optical fiber.
Claim 16
Dependent Claim
38 words
Facsimile apparatus as defined in claim 14 wherein said screen means includes first and second cylindrical screens mounted in respective first and second cylindrical guides defining therebetween the angular range of the cylindrical zone forming said second station.
Claim 17
Dependent Claim
60 words
Facsimile apparatus as defined in claim 15 wherein said first station is disposed transversely to said second station and the axis of said lens is transverse to said first station, said optical means further including a first plane mirror inclined to the axis of said lens and positioned in the light transmission path between said lens and said second station.
Claim 18
Dependent Claim
38 words
Facsimile apparatus as defined in claim 16 wherein said first and second guides and said first plane mirror are mounted between the legs of a common U-shaped support member, said first plane mirror being mounted for pivotal adjustment.
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |