Patent US3746840A successfully refreshed from Google Patents.
US3746840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resolution improvement for optical scanners
Assignee: Westinghouse Electric Corp
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Filing: 1970-07-02
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Granted: 1973-07-17
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Expires: 1990-07-02
Abstract
Abstract A device providing high resolution readout of information stored on a film. A slit equal in width to the desired spot size diameter is placed in front of a moving film. A fiber optics strip is placed in back of the film in line with the slit. A beam of light scans across the slit. The fiber optics strip is comprised of a plurality of optic fibers. The width of each fiber is also equal to the desired spot size diameter. All of the optic fibers are connected to a small group of photodetectors. The fibers and the detectors are arranged in such a manner that no one detector will receive information from more than one fiber at any one time as the beam scans across the slit.
Inventors
- 👤 J Ogland
- 👤 E Malarkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:52
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/103; G03B35/00; G03B35/18; G03B35/24; H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/126; H04N1/1295; G02B6/00; G02B6/24; G02B6/36; G02B6/3628; G02B6/3664; G02B6/3668; H04N1/19; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0458
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A system for producing high resolution readout of information comprising a slit disposed directly across and coextensive with a source of information, said slit providing a scanning aperture enabling scanning said of information in a first direction; means for causing relative movement between said slit and said source of information; an optical device disposed directly behind said source of information and in line with said slit for providing a readout in a second direction, said optical device including a plurality of optically conductive fibers arranged to form a plurality of groups, each of said groups being composed of a predetermined number of said fibers, and a set of detectors connected to said groups of fibers, the number of detectors composing said set of detectors being equal to said predetermined number of fibers which compose each group; and means for sweeping a beam of light across said source of information through said slit and upon said device for scanning in said second direction, the width of said beam of light being equal to the width of any group of fibers.
Claim 2
Independent Claim
179 words
A system for producing high resolution readout of information comprising a slit disposed directly across and coextensive with a source of information, said slit providing a scanning aperture enabling scanning said of information in a first direction; means for causing relative movement between said slit and said source of information; an optical device disposed directly behind said source of information and in line with said slit for providing a readout in a second direction, said optical device including a plurality of optically conductive fibers arranged to form a plurality of groups, each of said groups being composed of a predetermined number of said fibers, and a set of detectors connected to said groups of fibers, the number of detectors composing said set of detectors being equal to said predetermined number of fibers which compose each group; and means for sweeping a beam of light across said source of information through said slit and upon said device for scanning in said second direction, the width of said beam of light being equal to the width of any group of fibers.
Claim 3
Dependent Claim
19 words
The system of claim 1 wherein the width of said slit is equal to a predetermined spot size diameter.
Claim 4
Dependent Claim
25 words
The system of claim 2 wherein each of the fibers of the first group is connected to a different detector of said set of detectors.
Claim 5
Dependent Claim
23 words
The system of claim 3 wherein each of the fibers of said first group is connected to said detectors in a predetermined order.
Claim 6
Dependent Claim
23 words
The system of claim 4 wherein the fibers in the remaining groups are connected to said set of detectors in said predetermined order.
Claim 7
Dependent Claim
19 words
The system of claim 5 wherein the width of each fiber is equal to the desired spot size diameter.
Claim 8
Dependent Claim
17 words
The system of claim 1 including a utilization means, said utilization means being connected to said detectors.
Claim 9
Dependent Claim
26 words
The system of claim 6 wherein said plurality of optically conductive fibers are arranged in a straight line so as to be aligned with said slit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |