US3889226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scanned holography by sector scanning
Assignee: Battelle Development Corp
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Filing: 1973-09-12
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Granted: 1975-06-10
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Expires: 1993-09-12
Abstract
Abstract Sector or angular scanning of the source of coherent radiation and/or the receiver provides useful techniques in holography for producing a distortion which can be used to counteract the distortion due to wavelengths disparity in the recording and reconstruction steps. The sector or angular scanning may be performed mechanically or electronically.
Inventors
- 👤 Bernard P Hildebrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:34
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/08; G01; G01S; G01S13/00; G01S13/88; G01S13/89; G01S13/90; G01S13/904; G03H1/02; G03H2001/026; G03H2001/0264; G03H1/0443; G03H2001/0445; G03H1/0465; G03H2001/0469; G03H2001/0471; G03H1/0476; G03H2001/0478; G03H2001/048; G03H2210/00; G03H2210/63; G03H2222/00; G03H2222/34; G03H2222/36; G03H2226/00; G03H2226/11; G03H3/00; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
135 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by a substantially point radiation source fixed relative to the object, positioning an extended radiation receiver of finite size in two dimensions relative to the object scene to detect radiation from said beam after modification by the object scene, rotating said extended radiation receiver about a point fixed with respect to the object scene in a manner that the modified beam from the object scene is scanned over said extended radiation receiver, and mixing a reference signal with the object modified radiation striking the extended radiation receiver, said reference signal being mutually coherent with said object scene illuminating beam, thereby producing a holographic information signal of the object scene.
Claim 2
Independent Claim
135 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by a substantially point radiation source fixed relative to the object, positioning an extended radiation receiver of finite size in two dimensions relative to the object scene to detect radiation from said beam after modification by the object scene, rotating said extended radiation receiver about a point fixed with respect to the object scene in a manner that the modified beam from the object scene is scanned over said extended radiation receiver, and mixing a reference signal with the object modified radiation striking the extended radiation receiver, said reference signal being mutually coherent with said object scene illuminating beam, thereby producing a holographic information signal of the object scene.
Claim 3
Dependent Claim
38 words
The method according to claim 1 wherein the step of rotating said extended radiation receiver includes a rotation which causes said modified beam from the object scene to be scanned in two dimensions over said extended radiation receiver.
Claim 4
Dependent Claim
20 words
The method according to claim 1 wherein said extended radiation receiver comprises an ultrasonic transducer including a flat quartz sheet.
Claim 5
Dependent Claim
49 words
The method according to claim 1 wherein said extended radiation receiver comprises a transducer including a spherical piezo-electric material having a center of curvature, said spherical material being rotated about a point fixed with respect to said object scene that is not conincident with the spherical center of curvature.
Claim 6
Independent Claim
153 words
A method of producing holographic information of an object scene comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means relative to the object scene to detect radiation from said beam after modification by the object scene, one of said means having an extended area comprising a plurality of individual point transducers arrangEd over a spherical surface to provide a spherical array, effecting nutation of said extended area means about a point fixed with respect to said object scene by energizing said individual point transducers in a pre-determined sequence so that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 7
Independent Claim
153 words
A method of producing holographic information of an object scene comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means relative to the object scene to detect radiation from said beam after modification by the object scene, one of said means having an extended area comprising a plurality of individual point transducers arrangEd over a spherical surface to provide a spherical array, effecting nutation of said extended area means about a point fixed with respect to said object scene by energizing said individual point transducers in a pre-determined sequence so that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 8
Dependent Claim
20 words
The method of claim 5 wherein said extended area means is utilized for illuminating the object scene with coherent radiation.
Claim 9
Dependent Claim
19 words
The method according to claim 5 wherein said extended area means is utilized for receiving the object modified radiation.
Claim 10
Independent Claim
179 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means relative to the object scene to detect radiation from said beam after modification by the object scene, said radiation source means and said radiation receiver means comprising a transducer having an extended area of finite size in two dimensions and which is operated by pulsed radiation and used alternately as the radiation source and radiation receiver so that the transducer is effective as a receiver when the echo from the object arrives in the form of object-modified radiation, effecting nutation of said transducer about a point fixed with respect to said object scene in a manner that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 11
Independent Claim
179 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means relative to the object scene to detect radiation from said beam after modification by the object scene, said radiation source means and said radiation receiver means comprising a transducer having an extended area of finite size in two dimensions and which is operated by pulsed radiation and used alternately as the radiation source and radiation receiver so that the transducer is effective as a receiver when the echo from the object arrives in the form of object-modified radiation, effecting nutation of said transducer about a point fixed with respect to said object scene in a manner that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 12
Dependent Claim
52 words
The method according to claim 8 wherein said transducer comprises a plurality of individual point transducers arranged over a spherical surface to provide a spherical array and the step of effecting nutation of said extended area means is accomplished by energizing said individual point transducers in pre-determined sequence to provide sector scanning
Claim 13
Independent Claim
134 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means having an extended area of finite size in two dimensions relative to the object scene to detect radiation from said beam after modification by the object scene, effecting nutation of said receiver means by rotating said receiver means about a point fixed with respect to said object scene in a manner that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene thereby producing a holographic information signal of the object scene.
Claim 14
Independent Claim
134 words
A method of producing holographic information of an object scene, comprising the steps of: illuminating the object scene with a coherent radiation beam that is generated by radiation source means, positioning radiation receiver means having an extended area of finite size in two dimensions relative to the object scene to detect radiation from said beam after modification by the object scene, effecting nutation of said receiver means by rotating said receiver means about a point fixed with respect to said object scene in a manner that the object modified radiation is scanned over said radiation receiver means, and mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene thereby producing a holographic information signal of the object scene.
Claim 15
Dependent Claim
119 words
Apparatus for producing holographic information of an object scene comprising radiation source means for illuminating the object scene with a coherent radiation beam, radiation receiver means of extended area and positioned relative the object scene to detect radiation from said beam after modification by the object scene, means for effecting nutation of said extended area mans about a point fixed with respect to said object scene in a manner that the object-modified radiation is scanned over said radiation receiver means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating tHe object scene, thereby producing a holographic information signal of the object scene.
Claim 16
Dependent Claim
119 words
Apparatus for producing holographic information of an object scene comprising radiation source means for illuminating the object scene with a coherent radiation beam, radiation receiver means of extended area and positioned relative the object scene to detect radiation from said beam after modification by the object scene, means for effecting nutation of said extended area mans about a point fixed with respect to said object scene in a manner that the object-modified radiation is scanned over said radiation receiver means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating tHe object scene, thereby producing a holographic information signal of the object scene.
Claim 17
Dependent Claim
127 words
Apparatus for producing holographic information of an object scene comprising radiation source means including an array of individual point transducers arranged over a spherical surface to provide a spherical array for illuminating the object scene with coherent radiation beam, radiation receiver means positioned relative to the object scene to detect radiation from said beam after modification by the object scene, means for cyclicly energizing ones of said individual point transducers of said array in a manner that the object modified radiation is scanned over said radiation receiver means, and means for mixng a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 18
Dependent Claim
127 words
Apparatus for producing holographic information of an object scene comprising radiation source means including an array of individual point transducers arranged over a spherical surface to provide a spherical array for illuminating the object scene with coherent radiation beam, radiation receiver means positioned relative to the object scene to detect radiation from said beam after modification by the object scene, means for cyclicly energizing ones of said individual point transducers of said array in a manner that the object modified radiation is scanned over said radiation receiver means, and means for mixng a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 19
Dependent Claim
122 words
Apparatus for producing holographic information of an object scene comprising radiation source means for illuminating the object scene with a coherent radiation beam, radiation receiver means comprising an array of individual point transducers arranged over a spherical surface to provide a spherical array for detecting radiation from said beam after modification by the object scene, means for cyclicly energizing ones of said individual point transducers of said array in a manner that the object modified radiation is scanned over said radiation receiver means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 20
Dependent Claim
122 words
Apparatus for producing holographic information of an object scene comprising radiation source means for illuminating the object scene with a coherent radiation beam, radiation receiver means comprising an array of individual point transducers arranged over a spherical surface to provide a spherical array for detecting radiation from said beam after modification by the object scene, means for cyclicly energizing ones of said individual point transducers of said array in a manner that the object modified radiation is scanned over said radiation receiver means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 21
Dependent Claim
125 words
Apparatus for producing holographic information of an object scene, comprising: transducer means alternately energizable to comprise radiation source means for illuminating the object scene with a coherent radiation beam and radiation receiver means to detect radiation from said beam after modification by the object scene, means for electrically pulsing the operation of said transducer means, means for effecting nutation of said transducer means about a point fixed with respect to said object scene in a manner that the object-modified radiation is scanned over said transducer means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 22
Dependent Claim
125 words
Apparatus for producing holographic information of an object scene, comprising: transducer means alternately energizable to comprise radiation source means for illuminating the object scene with a coherent radiation beam and radiation receiver means to detect radiation from said beam after modification by the object scene, means for electrically pulsing the operation of said transducer means, means for effecting nutation of said transducer means about a point fixed with respect to said object scene in a manner that the object-modified radiation is scanned over said transducer means, and means for mixing a reference signal with the object modified radiation striking said receiver means, said reference signal being mutually coherent with said beam illuminating the object scene, thereby producing a holographic information signal of the object scene.
Claim 23
Dependent Claim
26 words
Apparatus according to claim 14 wherein said transducer means comprises an array of individual point transducers arranged over a spherical surface to provide a spherical array.
References Cited (Backward Citations)
US3640598A
Cited
US3760344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |