US3703724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder with zone plate scanner
Assignee: KMS Industries Inc
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Filing: 1971-07-22
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Granted: 1972-11-21
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Expires: 1991-07-22
Abstract
Abstract A zone plate scanner for wide bandwidth laser recorders utilizing a rotating disc having pairs of peripheral windows, each containing a zone plate, one set of windows in each pair being spaced circumferentially at a constant radius, and a second set being similarly spaced circumferentially but each having a different radius. The spacing changes the grating frequency for each pair and encodes each track on a moving film in a manner which eliminates interference in close spacing and reduces the criticality of readout equipment.
Inventors
- 👤 Carlton E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:58
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/89; G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/106; G02B5/00; G02B5/18; G02B5/1876; G02B5/188; G03; G03B; G03B15/00; G11; G11B; G11B7/00; G11B7/002; G11B7/003; G11B7/0031; G11B7/08; G11B7/085; G11C; G11C13/00; G11C13/04; G11C13/042
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, one aperture of each pair being disposed at a constant radius relative to said axis and the other aperture of each pair being disposed at differing radii relative to said axis, whereby light passing through each pair of apertures to said sheet will record as a different grating frequency.
Claim 2
Dependent Claim
141 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, one aperture of each pair being disposed at a constant radius relative to said axis and the other aperture of each pair being disposed at differing radii relative to said axis, whereby light passing through each pair of apertures to said sheet will record as a different grating frequency.
Claim 3
Dependent Claim
141 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, one aperture of each pair being disposed at a constant radius relative to said axis and the other aperture of each pair being disposed at differing radii relative to said axis, whereby light passing through each pair of apertures to said sheet will record as a different grating frequency.
Claim 4
Dependent Claim
141 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, one aperture of each pair being disposed at a constant radius relative to said axis and the other aperture of each pair being disposed at differing radii relative to said axis, whereby light passing through each pair of apertures to said sheet will record as a different grating frequency.
Claim 5
Dependent Claim
133 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the ligHt moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, and c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, said apertures of each pair being spaced relative to each other and to said axis with respect to other apertures in the series whereby coherent light passing through each pair will record on said sheet at a different grating frequency.
Claim 6
Dependent Claim
133 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the ligHt moves toward said sheet, b. means for mounting said plate for rotation about an axis perpendicular to the plate, and c. means forming a series of spaced pairs of zone plate apertures on said plate arranged circumferentially around said axis, said apertures of each pair being spaced relative to each other and to said axis with respect to other apertures in the series whereby coherent light passing through each pair will record on said sheet at a different grating frequency.
Claim 7
Dependent Claim
99 words
In an apparatus for recording intelligence on a moving sheet carrying light sensitive material in the form of light modulated interfering beams carrying informational data, that improvement which comprises a rotating plate positioned to have a peripheral portion interposed in a light modulated beam directed at said moving sheet, said peripheral portion having a plurality of pairs of circumferentially spaced zone plate apertures, the apertures of each pair being disposed radially to create interfering beams having a different grating frequency from any other pair wherein closely spaced encoded data can be recorded on said moving sheet for eventual readout.
Claim 8
Dependent Claim
99 words
In an apparatus for recording intelligence on a moving sheet carrying light sensitive material in the form of light modulated interfering beams carrying informational data, that improvement which comprises a rotating plate positioned to have a peripheral portion interposed in a light modulated beam directed at said moving sheet, said peripheral portion having a plurality of pairs of circumferentially spaced zone plate apertures, the apertures of each pair being disposed radially to create interfering beams having a different grating frequency from any other pair wherein closely spaced encoded data can be recorded on said moving sheet for eventual readout.
Claim 9
Dependent Claim
152 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate in a plane between said source and said sheet for motion in a direction generally transverse to the motion of said sheet, and c. means forming a series of spaced pairs of light transmitting zone plate areas on said plate arranged sequentially along said plate, said areas of each pair being spaced relative to each other and to said other areas in the series whereby coherent light passing through each pair will record on said sheet at a different grating frequency as said plate moves relative to said strip.
Claim 10
Dependent Claim
152 words
In a system for recording data on a light sensitive recording medium utilizing a coherent light source, a sheet of light sensitive recording medium, and means for moving the sheet in the direction of its plane, that improvement which comprises: a. a plate to receive data-modulated light from said source as the light moves toward said sheet, b. means for mounting said plate in a plane between said source and said sheet for motion in a direction generally transverse to the motion of said sheet, and c. means forming a series of spaced pairs of light transmitting zone plate areas on said plate arranged sequentially along said plate, said areas of each pair being spaced relative to each other and to said other areas in the series whereby coherent light passing through each pair will record on said sheet at a different grating frequency as said plate moves relative to said strip.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |