US3647955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image transmitter using microfilm positives or negatives as source
Assignee: VVS ENERGY PATENT FUND Inc A CORPOF NY
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Filing: 1970-05-04
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Granted: 1972-03-07
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Expires: 1990-05-04
Abstract
Abstract An image transmission system is disclosed in which the image is obtained from a reduced size medium such as microfilm. A scanning beam is incident upon a first reflector which causes the beam to be redirected onto a second reflector fixedly spaced therefrom. The second reflector in turn redirects the scanning beam onto the film. By moving the two reflectors with respect to the source of the scanning beam by a relatively large distance, the scanning beam is moved by a much smaller distance over the plane of the film, to permit scanning over a new line on the film.
Inventors
- 👤 Malcolm Reader
- 👤 John L Tregay
- 👤 Charles Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/10; H04N1/1013; H04N1/1039; H04N1/1052; H04N1/12; H04N1/126; H04N1/127; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0404; H04N2201/041
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
211 words
Apparatus for transmitting information from a reduced size medium such as microfilm or the like, said apparatus comprising means for supporting film in a scanning plane, a fixed source of a scanning beam a carriage, first nonrotatable reflecting means mounted on said carriage in optical communication with said beam source, second nonrotatable reflecting means mounted on said carriage and spaced at a fixed distance from and in optical communication with and nonparallel to said first reflecting means, a fixed lens mounted near said film supporting means and spaced from said carriage interposed between said second reflecting means and the film for producing from the beam incident thereon a spot that is illuminated onto the plane of the film, and means including means for incrementally moving said carriage for incrementally varying the relative position of said first and second reflecting means with respect to said beam source and said film while maintaining said first and second reflecting means at said fixed distance from one another, thereby to incrementally move said scanning beam across the plane of the film, whereby the incremental motion and size of said spot at the film are respectively less than the incremental motion of said reflecting means and the spot size of said beam at said beam source.
Claim 2
Dependent Claim
211 words
Apparatus for transmitting information from a reduced size medium such as microfilm or the like, said apparatus comprising means for supporting film in a scanning plane, a fixed source of a scanning beam a carriage, first nonrotatable reflecting means mounted on said carriage in optical communication with said beam source, second nonrotatable reflecting means mounted on said carriage and spaced at a fixed distance from and in optical communication with and nonparallel to said first reflecting means, a fixed lens mounted near said film supporting means and spaced from said carriage interposed between said second reflecting means and the film for producing from the beam incident thereon a spot that is illuminated onto the plane of the film, and means including means for incrementally moving said carriage for incrementally varying the relative position of said first and second reflecting means with respect to said beam source and said film while maintaining said first and second reflecting means at said fixed distance from one another, thereby to incrementally move said scanning beam across the plane of the film, whereby the incremental motion and size of said spot at the film are respectively less than the incremental motion of said reflecting means and the spot size of said beam at said beam source.
Claim 3
Dependent Claim
48 words
The apparatus of claim 1, in which said first reflecting means comprises means for receiving the beam from said beam source and redirecting tHe scanning beam onto said second reflecting means, said second reflecting means comprising means for redirecting the scanning beam onto the plane of the film.
Claim 4
Dependent Claim
47 words
The apparatus of claim 2, in which said first reflecting means is oriented at a predetermined angle with respect to the axis of said scanning beam, and said second reflecting beam is oriented at said predetermined angle with respect to the scanning reflected scanning beam incident thereon.
Claim 5
Dependent Claim
55 words
The apparatus of claim 1, in which said first reflecting means is oriented at a predetermined acute angle with respect to the axis of said scanning beam, and said second reflecting beam is oriented at said predetermined angle with respect to the scanning reflected scanning beam incident thereon and to the plane of the film.
Claim 6
Dependent Claim
64 words
The apparatus of claim 4, further comprising means for producing a step signal upon the completion of scanning along one line of the film, said incremental position varying means being responsive to said step signal to laterally move said first and second reflecting means, thereby to reposition said scanning beam to initiate scanning of the film along a line immediately succeeding said one line.
Claim 7
Dependent Claim
67 words
The apparatus of claim 1, further comprising means for producing a step signal upon the completion of scanning along one line of the film, said incremental position varying means being responsive to said step signal to laterally move said carriage and said first and second reflecting means, thereby to reposition said scanning beam to initiate scanning of the film along a line immediately succeeding said one line.
Claim 8
Dependent Claim
50 words
The apparatus of claim 6, in which said carriage moving means comprises a step motor actuated upon the receipt of each of said step signals, and means coupled to said carriage and said step motor for causing an incremental lateral shift of the former upon each operation of the latter.
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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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |