US3640598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Technique of holography by source scanning
Assignee: Holotron Corp
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Filing: 1967-08-23
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Granted: 1972-02-08
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Expires: 1987-08-23
Abstract
Abstract A technique of making holograms of three-dimensional objects with electromagnetic or ultrasonic radiation; a point source of radiation for the object beam is scanned over a plane and is received at a point. Holographic information is then obtained by mixing the received object beam with a coherent reference beam, either derived from the object beam source or introduced electronically. Reciprocity between the disclosed source-scanning technique and the conventional receiver-scanning technique is shown and specific embodiments are disclosed which utilize the source-scanning technique and which are illustrative of benefits which may be obtained through the utilization of such technique over the receiver-scanning technique.
Inventors
- 👤 Victor I Neeley
- 👤 Hugo L Libby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/08; G03H3/00; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10S359/901
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
101 words
In the method of producing holographic information of object scenes with coherent wave radiation, the holographic information being contained in the interference pattern produced by mixing an object signal wavefront emanating from the object scene with a reference signal, the improvement comprising producing and receiving said object signal by scanning a point source of wave radiation over a plane, each point on said source plane effectively illuminating the entire object scene, and receiving said object signal at a single point fixed in space and fixed relative to the object scene, thereby to produce a holographic information signal of the object scene.
Claim 2
Dependent Claim
101 words
In the method of producing holographic information of object scenes with coherent wave radiation, the holographic information being contained in the interference pattern produced by mixing an object signal wavefront emanating from the object scene with a reference signal, the improvement comprising producing and receiving said object signal by scanning a point source of wave radiation over a plane, each point on said source plane effectively illuminating the entire object scene, and receiving said object signal at a single point fixed in space and fixed relative to the object scene, thereby to produce a holographic information signal of the object scene.
Claim 3
Dependent Claim
38 words
The method as defined in claim 1 wherein the holographic infOrmation is produced and detected at said fixed point in space by illuminating directly said fixed point in space with each point source on said scanned source plane.
Claim 4
Dependent Claim
40 words
The method as defined in claim 1 wherein the holographic information is produced by receiving said object signal at said fixed point in space and electronically mixing said received object signal with a reference signal coherent with said point source.
Claim 5
Dependent Claim
18 words
The method as defined in claim 1 wherein the scanned point source of wave radiation comprises electromagnetic radiation.
Claim 6
Dependent Claim
14 words
The method as defined in claim 4 wherein said electromagnetic radiation comprises visible light.
Claim 7
Dependent Claim
14 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises ultraviolet light.
Claim 8
Dependent Claim
14 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises infrared radiation.
Claim 9
Dependent Claim
14 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises radiofrequency radiation.
Claim 10
Dependent Claim
29 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises modulated electromagnetic radiation, said fixed point in space being responsive to the modulations of said electromagnetic radiation.
Claim 11
Dependent Claim
14 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises X-ray radiation.
Claim 12
Dependent Claim
14 words
The method as defined in claim 4 wherein the electromagnetic radiation comprises microwave radiation.
Claim 13
Dependent Claim
20 words
The method as defined in claim 1 wherein the point source of wave radiation comprises a source of compressional radiation.
Claim 14
Dependent Claim
14 words
The method as defined in claim 12 wherein the compressional radiation comprises seismic radiation.
Claim 15
Dependent Claim
14 words
The method as defined in claim 12 wherein the compressional radiation comprises ultrasonic radiation.
Claim 16
Dependent Claim
14 words
The method as defined in claim 12 wherein the compressional radiation comprises hypersonic radiation.
Claim 17
Dependent Claim
15 words
The method as defined in claim 12 wherein the source of compressional radiation comprises phonons.
Claim 18
Dependent Claim
29 words
The method as defined in claim 12 wherein the compressional radiation comprises modulated compressional radiation, the fixed point in space being responsive to the modulations of the compressional radiation.
References Cited (Backward Citations)
US3461420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |