Patent US3644013A successfully refreshed from Google Patents.
US3644013A
Expired / Lapsed
US
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Three-dimensional camera
Assignee: Holobeam Inc
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Filing: 1968-08-21
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Granted: 1972-02-22
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Expires: 1988-08-21
Abstract
Abstract A three-dimensional hologram producing camera utilizing a single lens system for providing a volumetric image on bulk sensitive film having a zone plate positioned in front of the lens to provide greater resolution to the recorded image point formed as a volumetric biconically shaped light distribution in the film bulk.
Inventors
- 👤 Gordon Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:30
CPC Classifications
G; G03; G03H; G03H1/00; G02; G02B; G02B27/00; G02B27/42; G02B27/4205
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
A three-dimensional hologram producing camera having a lightfocusing means housing and employing a thick or bulk photosensitive film material, and single lens-focusing means and a plate having two radially spaced light transmitting zones positioned in the path of light passing through said lens focusing means, which together provide a volumetric image recording in which each object point produces essentially an altered biconical shaped volume distribution of light within the bulk film and interfering light patterns.
Claim 2
Dependent Claim
75 words
A three-dimensional hologram producing camera having a lightfocusing means housing and employing a thick or bulk photosensitive film material, and single lens-focusing means and a plate having two radially spaced light transmitting zones positioned in the path of light passing through said lens focusing means, which together provide a volumetric image recording in which each object point produces essentially an altered biconical shaped volume distribution of light within the bulk film and interfering light patterns.
Claim 3
Independent Claim
194 words
An apparatus comprising first stage focusing means including a single lens system for forming an image of an object from which radiation is emanating; first stage photosensitive means having a photochromic plate within whose volume information is retained after exposure to focused radiation coming from said first stage focusing means to provide a three-dimensional image within the volume of said photochromic plate, each object point providing essentially a biconical shaped light distribution, the surfaces of said three-dimensional image corresponding in depth to the surfaces of the object; coherent radiation source means for illuminating an exposed first stage photosensitive means; second stage phOtosensitive means which upon exposure to radiation emanating from said coherent radiation source means part of which has been diffracted by said information stored within said first stage photosensitive and part of which has not been so affected stores information characteristic of interference patterns developed by said parts of the radiation from said coherent radiation source means, and means including a plate having first and second radially light transmitting zones positioned adjacent to said single lens system to provide a high resolution fine structure to the image surface formed in the thick film.
Claim 4
Independent Claim
194 words
An apparatus comprising first stage focusing means including a single lens system for forming an image of an object from which radiation is emanating; first stage photosensitive means having a photochromic plate within whose volume information is retained after exposure to focused radiation coming from said first stage focusing means to provide a three-dimensional image within the volume of said photochromic plate, each object point providing essentially a biconical shaped light distribution, the surfaces of said three-dimensional image corresponding in depth to the surfaces of the object; coherent radiation source means for illuminating an exposed first stage photosensitive means; second stage phOtosensitive means which upon exposure to radiation emanating from said coherent radiation source means part of which has been diffracted by said information stored within said first stage photosensitive and part of which has not been so affected stores information characteristic of interference patterns developed by said parts of the radiation from said coherent radiation source means, and means including a plate having first and second radially light transmitting zones positioned adjacent to said single lens system to provide a high resolution fine structure to the image surface formed in the thick film.
Claim 5
Dependent Claim
39 words
The apparatus of claim 2, in which said first zone is in the form of an opening centrally formed in said plate, and said second zone is in the form of an annular space concentrically formed about said opening.
Claim 6
Dependent Claim
144 words
A camera system comprising: first stage focusing means for forming an image of an object from which radiation is emanating; first stage photosensitive means within whose bulk information is retained after exposure to focused radiation coming from said first stage focusing means; coherent radiation source means for illuminating an exposed first stage photosensitive means; second stage photosensitive means which upon exposure to radiation emanating from said coherent radiation source means, part of which has been diffracted by said information stored within said first stage photosensitive means and part of which has not been so affected, stores information characteristic of interference patterns developed by said parts of the radiation from said coherent radiation source means; and a zone plate having first and second radially spaced light-transmitting regions positioned in front of said focusing means in the path of light passing through said light focusing means.
Claim 7
Dependent Claim
144 words
A camera system comprising: first stage focusing means for forming an image of an object from which radiation is emanating; first stage photosensitive means within whose bulk information is retained after exposure to focused radiation coming from said first stage focusing means; coherent radiation source means for illuminating an exposed first stage photosensitive means; second stage photosensitive means which upon exposure to radiation emanating from said coherent radiation source means, part of which has been diffracted by said information stored within said first stage photosensitive means and part of which has not been so affected, stores information characteristic of interference patterns developed by said parts of the radiation from said coherent radiation source means; and a zone plate having first and second radially spaced light-transmitting regions positioned in front of said focusing means in the path of light passing through said light focusing means.
Claim 8
Dependent Claim
154 words
A process for forming a hologram of an object comprising: focusing radiation with a single lens system emanating from said object within a volume of photochromic material to form a three-dimensional image within the volume of said material, the surfaces of said three-dimensional image corresponding in depth to the surface of the object; illuminating said exposed photochromic material with coherent radiation to provide a diffraction pattern, providing a portion of said coherent radiation which has not been diffracted; and exposing photosensitive material to the interference pattern formed by that portion of said coherent radiation which has been diffracted by image stored in said illuminated initially exposed photochromic material with that portion of said coherent radiation which has not been so diffracted, and positioning a plate having first and second radially spaced light-transmitting zones intermediate said lens system and said object for providing a high resolution fine structure to the resulting image in said bulk.
Claim 9
Dependent Claim
154 words
A process for forming a hologram of an object comprising: focusing radiation with a single lens system emanating from said object within a volume of photochromic material to form a three-dimensional image within the volume of said material, the surfaces of said three-dimensional image corresponding in depth to the surface of the object; illuminating said exposed photochromic material with coherent radiation to provide a diffraction pattern, providing a portion of said coherent radiation which has not been diffracted; and exposing photosensitive material to the interference pattern formed by that portion of said coherent radiation which has been diffracted by image stored in said illuminated initially exposed photochromic material with that portion of said coherent radiation which has not been so diffracted, and positioning a plate having first and second radially spaced light-transmitting zones intermediate said lens system and said object for providing a high resolution fine structure to the resulting image in said bulk.
Claim 10
Dependent Claim
18 words
The camera system of claim 4 in which said first stage photosensitive means includes a diffusing surface means.
Claim 11
Dependent Claim
15 words
The camera system of claim 6 in which said diffusing means comprises a roughened surface.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |