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US3608993A
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Method and apparatus for three-dimensional imaging
Assignee: US Philips Corp
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Filing: 1968-06-10
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Granted: 1971-09-28
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Expires: 1988-06-10
Abstract
Abstract A three-dimensional imaging system and method in which original image information is obtained in the form of a series of fullfield two-dimensional image recordings from different directions in a common plane. The three-dimensional image can be reconstructed by conversion of the recordings to a strip hologram employing coherent light, by viewing the recordings with incoherent light by means of an optical system having a moving lens or mirror, or by means of an optical system including an autocollimating screen.
Inventors
- 👤 Dominick John De Bitetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:38
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/34; G03B; G03B35/00; G03B35/18; G03B35/24; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
94 words
A method of three-dimension imaging, comprising producing with incoherent radiation a real image series of an object in the form of a plurality of images corresponding to views of said object from different angles along a single line in a plane, projecting said image series by way of a linear lens array to an image plane, with each of said images being projected through a separate lenslet of said linear lens array, and projecting a substantially identical additional image series displaced from the first said series and oriented parallel to the first said series.
Claim 2
Independent Claim
94 words
A method of three-dimension imaging, comprising producing with incoherent radiation a real image series of an object in the form of a plurality of images corresponding to views of said object from different angles along a single line in a plane, projecting said image series by way of a linear lens array to an image plane, with each of said images being projected through a separate lenslet of said linear lens array, and projecting a substantially identical additional image series displaced from the first said series and oriented parallel to the first said series.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said incoherent radiation is X-radiation, and said step of producing said image series comprises recording a transparent image series by X-ray shadowgraphs.
Claim 4
Dependent Claim
48 words
The method of claim 1 wherein said step of producing said image series comprises exposing a photographic film with incoherent radiation from an object by way of a single linear array of lenslets arranged in a plane parallel to the plane of said film and developing said film.
Claim 5
Dependent Claim
73 words
The method of claim 1 in which said image series is in the form of a single row of contiguous positive images, comprising providing a hologram plate at said image plane, said step of projecting said image series comprises projecting coherent radiation through said image series, linear lens array and an optical system, and exposing said hologram plate to coherent reference radiation simultaneously with said first-mentioned coherent radiation to produce a strip hologram.
Claim 6
Dependent Claim
27 words
The method of claim 4 comprising reproducing a plurality of identical said strip holograms, and assembling said strip holograms in parallel relationship to form a composite hologram.
Claim 7
Dependent Claim
61 words
The method of claim 1 wherein said step of projecting comprises projecting said image series with incoherent radiation through said linear lens array and an optical system, and wherein the step of projecting said additional image series comprises scanning the image field by continuously moving an element of said optical system whereby substantially the entire image of said object is visible.
Claim 8
Dependent Claim
33 words
The method of claim 6 wherein said optical system is a lens system, and said step of moving comprises reciprocating a lens of said lens system in a plane normal to the axis.
Claim 9
Dependent Claim
46 words
The method of claim 6 wherein said optical system comprises a lens system and a plane mirror arranged in that order with respect to the projection of the first said image series, and said step of moving comprises angularly rotating said mirror about a pivot point.
Claim 10
Dependent Claim
46 words
The method of claim 6 wherein said optical system comprises a partially transmitting mirror and a spherical mirror arranged in that order in the projection path of the first said image series, and said step of moving comprises angularly rotating said mirror about a pivot point.
Claim 11
Dependent Claim
78 words
The method of claim 1 wherein said steps of projecting comprise projecting the first said image series with incoherent radiation through said linear lens array, a partially transmitting mirror arranged at an angle to the projection path, and reflecting the first image with an autocollimating screen arranged normal to the projection path, whereby radiation is reflected back from said screen to said mirror to produce said additional series, whereby substantially the entire image of said object is visible.
Claim 12
Independent Claim
115 words
A method for the transmission of three-dimensional images comprising producing a series of images of an object from different angles in a single line of a common plane with incoherent radiation, producing electric signals corresponding to said images, transmitting said electric signals, receiving said transmitting electric signals, converting said received signals to contiguous images corresponding to said series of images, projecting said contiguous images to an image plane by way of a linear lens array, and projecting a substantially identical additional image series displaced from the first said series and oriented parallel to the first said series, with each image of said contiguous images being projected through a separate lenslet of said linear lens array.
Claim 13
Independent Claim
115 words
A method for the transmission of three-dimensional images comprising producing a series of images of an object from different angles in a single line of a common plane with incoherent radiation, producing electric signals corresponding to said images, transmitting said electric signals, receiving said transmitting electric signals, converting said received signals to contiguous images corresponding to said series of images, projecting said contiguous images to an image plane by way of a linear lens array, and projecting a substantially identical additional image series displaced from the first said series and oriented parallel to the first said series, with each image of said contiguous images being projected through a separate lenslet of said linear lens array.
Claim 14
Independent Claim
107 words
A system for reconstructing a three-dimensional image comprising a linear lens array, an optical system, an image plane, a first means for projecting an image through said lens array and optical system to said image plane with incoherent radiation, said image being in the form of a plurality of contiguous separate two-dimensional images corresponding to view of an object with incoherent radiation at different angles in a common plane, said separate images being aligned with separate lenslets of said linear lens array, and a second means for projecting a substantially identical image series displaced from the first said series and oriented parallel to the first said series.
Claim 15
Independent Claim
107 words
A system for reconstructing a three-dimensional image comprising a linear lens array, an optical system, an image plane, a first means for projecting an image through said lens array and optical system to said image plane with incoherent radiation, said image being in the form of a plurality of contiguous separate two-dimensional images corresponding to view of an object with incoherent radiation at different angles in a common plane, said separate images being aligned with separate lenslets of said linear lens array, and a second means for projecting a substantially identical image series displaced from the first said series and oriented parallel to the first said series.
Claim 16
Dependent Claim
28 words
The system of claim 12 wherein said second means comprises means for moving an element of said optical system whereby the entire image of said object becomes visible.
Claim 17
Dependent Claim
88 words
The system of claim 12 wherein said second means comprises an autocollimating screen positioned on one side of said linear lens array, and a partially transparent mirror positiOned between said screen and linear lens array at an angle to the optical axis of said linear lens array, and wherein said first projecting means is positioned on the opposite side of said linear lens array, whereby the entire image of said object is visible at a viewing position in the path of light reflected from said mirror and screen.
Claim 18
Dependent Claim
54 words
The system of claim 12 wherein said means for projecting comprises a strip holocoder positioned with individual elements aligned with separate lenslets of said linear lens array, and a source of white light positioned to direct light through said strip holocoder, linear lens array and optical system to said image plane in that order.
References Cited (Backward Citations)
US2139855A
Cited
US3515452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |