US3685051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holographic imaging system using crossed linear arrays of energy sources and sensors
Assignee: Honeywell Inc
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Filing: 1969-03-06
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Granted: 1972-08-15
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Expires: 1989-03-06
Abstract
Abstract An improved and simplified energy propagation and detection system for forming a hologram of an object illuminated with coherent acoustic or radio energy. Coherent wave energy incident on and modified by the object is received and detected at a hologram plane. Photographic film used in conventional optical holography to record interference patterns at the hologram plane is not useful with acoustic or radio energy, and other types of sensors or receivers must therefore be used. In the past, a twodimensionally scanned receiver or a grid of many fixed receivers has been used at the hologram plane to map energy intensity and phase, and to provide signals from which an optical hologram is constructed. The new system uses a single linear array of receivers in combination with either a single energy source which is mechanically scanned in one dimension, or a linear array of sources oriented transversely to the array of receivers. A major reduction in the total number of sources and receivers is achieved to permit economical mapping of a large hologram plane with resolution adequate for underwater object detection and similar applications.
Inventors
- 👤 Willard H Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:49
CPC Classifications
G; G01; G01H; G01H3/00; G01H3/10; G01H3/12; G01H3/125; G01S; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8965; G01S15/897; G01S7/00; G01S7/02; G01S7/04; G03; G03H; G03H3/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
188 words
In a system for forming a hologram of an object by irradiating the object with coherent wave energy and receiving such energy as modified by the object at a plurality of points in a hologram plane to determine phase at each point, an improved energy emitting and receiving apparatus comprising: radiating means arranged as a linear array to emit energy toward the object from a plurality of positions therealong; transmitter control means connected to the radiating means and arranged to deliver coherent energy thereto in time sequence for serial emission from the positions along the radiatingmeans array; detecting means arranged in the hologram plane as a linear array oriented transversely to the radiating-means linear array, and arranged to receive energy from the object at a plurality of positions therealong; and receiver control means connected to the detecting means and arranged to receive energy from each position of the detectingmeans array at least once for each energy emission from each position along the radiating-means array so a matrix of data points across the hologram plane is obtained with only two transversely oriented linear arrays of radiating and detecting means.
Claim 2
Dependent Claim
188 words
In a system for forming a hologram of an object by irradiating the object with coherent wave energy and receiving such energy as modified by the object at a plurality of points in a hologram plane to determine phase at each point, an improved energy emitting and receiving apparatus comprising: radiating means arranged as a linear array to emit energy toward the object from a plurality of positions therealong; transmitter control means connected to the radiating means and arranged to deliver coherent energy thereto in time sequence for serial emission from the positions along the radiatingmeans array; detecting means arranged in the hologram plane as a linear array oriented transversely to the radiating-means linear array, and arranged to receive energy from the object at a plurality of positions therealong; and receiver control means connected to the detecting means and arranged to receive energy from each position of the detectingmeans array at least once for each energy emission from each position along the radiating-means array so a matrix of data points across the hologram plane is obtained with only two transversely oriented linear arrays of radiating and detecting means.
Claim 3
Dependent Claim
49 words
The improvement defined in claim 1 in which one of the linear arrays in The radiating and detecting means includes a plurality of spaced-apart transducers arranged therealong, and the other linear array includes a single transducer which is mounted to be movable transversely with respect to object direction therefrom.
Claim 4
Dependent Claim
27 words
The improvement defined in claim 2 in which the plurality of spaced-apart transducers are in the detecting-means array, and the single transducer is in the radiating-means array.
Claim 5
Dependent Claim
20 words
The improvement defined in claim 3 in which the transducers are of a type adapted for use with acoustic energy.
Claim 6
Dependent Claim
13 words
The improvement defined in claim 3 in which the transducers are microwave antennas.
Claim 7
Dependent Claim
27 words
The improvement defined in claim 1 in which each of the linear arrays in the radiating and detecting means includes a plurality of spaced-apart transducers arranged therealong.
Claim 8
Dependent Claim
20 words
The improvement defined in claim 6 in which the transducers are of a type adapted for use with acoustic energy.
Claim 9
Dependent Claim
13 words
The improvement defined in claim 6 in which the transducers are microwave antennas.
Claim 10
Dependent Claim
178 words
In a system for forming a hologram of an object by irradiating the object with coherent wave energy and receiving such energy as modified by the object at a plurality of points in a hologram plane to determine phase at each point, an improved energy emitting and receiving apparatus comprising: radiating means arranged as a linear array to emit energy toward the object from a plurality of positions therealong; detecting means arranged in the hologram plane as a linear array oriented transversely to the radiating-means linear array, and arranged to receive energy from the object at a plurality of positions therealong; and control means connected to the radiating means for delivering energy thereto in pulsed sequence, and connected to the detecting means for receiving energy therefrom, the control means being synchronized to receive energy from each position along the detecting-means array at least once for each energization of each position of the radiating-means array so a matrix of data points across the hologram plane is obtained with only two transversely oriented linear arrays of radiating and detecting means.
Claim 11
Dependent Claim
178 words
In a system for forming a hologram of an object by irradiating the object with coherent wave energy and receiving such energy as modified by the object at a plurality of points in a hologram plane to determine phase at each point, an improved energy emitting and receiving apparatus comprising: radiating means arranged as a linear array to emit energy toward the object from a plurality of positions therealong; detecting means arranged in the hologram plane as a linear array oriented transversely to the radiating-means linear array, and arranged to receive energy from the object at a plurality of positions therealong; and control means connected to the radiating means for delivering energy thereto in pulsed sequence, and connected to the detecting means for receiving energy therefrom, the control means being synchronized to receive energy from each position along the detecting-means array at least once for each energization of each position of the radiating-means array so a matrix of data points across the hologram plane is obtained with only two transversely oriented linear arrays of radiating and detecting means.
Claim 12
Dependent Claim
152 words
A holography system, comprising: transmitter means for irradiating an object with pulses of coherent energy from each of m positions of a spacial array of transmitting positions, and including a transmitter synchronizing means for sequencing emission of energy serially through the m positions; receiver means for receiving the energy as modified by the object at each of n positions of a spacial array of receiving positions which are spaced from and complementary to the transmitting positions so propagation paths of the energy are substantially geometrically equivalent to propagation paths in an area-holography system, the receiving means being operative to receive energy reaching the n positions and transmitted from each of the m positions to generate mn holographic data points for each sequencing of the transmitter means through the m positions; and means for arranging the mn data points as a virtual hologram from which an image of the object can be reconstructed.
Claim 13
Dependent Claim
152 words
A holography system, comprising: transmitter means for irradiating an object with pulses of coherent energy from each of m positions of a spacial array of transmitting positions, and including a transmitter synchronizing means for sequencing emission of energy serially through the m positions; receiver means for receiving the energy as modified by the object at each of n positions of a spacial array of receiving positions which are spaced from and complementary to the transmitting positions so propagation paths of the energy are substantially geometrically equivalent to propagation paths in an area-holography system, the receiving means being operative to receive energy reaching the n positions and transmitted from each of the m positions to generate mn holographic data points for each sequencing of the transmitter means through the m positions; and means for arranging the mn data points as a virtual hologram from which an image of the object can be reconstructed.
Claim 14
Dependent Claim
54 words
The system defined in claim 10 and further comprising a delay means connected between the transmitter means and receiver means to delay initiation of reception at the n positions after emission of energy from each of the m positions by a period representative of propagation time of the object-irradiating energy along the propagation paths.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |