US3582176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holographic optical method and system for photoprinting three-dimensional patterns on three-dimensional objects
Assignee: International Business Machines Corp
•
Filing: 1968-12-26
•
Granted: 1971-06-01
•
Expires: 1988-12-26
Abstract
Abstract Optical apparatus is disclosed for simultaneously illuminating every accessible (i.e., exposed-to-view) surface of a threedimensional object with monochromatic spatially coherent light. The light reflected from the object is collected and directed on a photosensitive film which also receives a reference beam of monochromatic spatially coherent light of the same frequency as the illuminating beam. The photographic hologram resulting from the development of the film is illuminated by a beam which is the conjugate of said reference beam to produce a real image of the original object. A suitably photosensitized duplicate object, placed at the position of the original object is exposed to the real image whereby every corresponding accessible surface of the duplicate object simultaneously is exposed to the real image.
Inventors
- 👤 Einar S Mathisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:44
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/22; G03H1/2249; G03H1/0005; G03H2001/0094; G03H2210/00; G03H2210/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A holographic photoprinting method comprising: providing a three-dimensional object having a three-dimensional pattern on the accessible surfaces thereof; illuminating every accessible surface of said object with at least one object beam of monochromatic spatially coherent light; collecting said light reflected from every said accessible surface; producing at least one referencE beam of monochromatic spatially coherent light of the same frequency as each said object beam; exposing photosensitive means to the collected light and to said reference beam for producing at least one hologram representing said pattern on said object; producing at least one conjugate beam of light which is the conjugate of a respective reference beam; each said conjugate beam illuminating a respective hologram and thereby producing a three-dimensional real image of said pattern at the location of said object; and replacing said three-dimensional object by a photosensitized object having substantially the same shape as said threedimensional object without said pattern placed at the position of said real image whereby every accessible surface of said photosensitized object simultaneously is exposed to said real image.
Claim 2
Dependent Claim
174 words
A holographic photoprinting method comprising: providing a three-dimensional object having a three-dimensional pattern on the accessible surfaces thereof; illuminating every accessible surface of said object with at least one object beam of monochromatic spatially coherent light; collecting said light reflected from every said accessible surface; producing at least one referencE beam of monochromatic spatially coherent light of the same frequency as each said object beam; exposing photosensitive means to the collected light and to said reference beam for producing at least one hologram representing said pattern on said object; producing at least one conjugate beam of light which is the conjugate of a respective reference beam; each said conjugate beam illuminating a respective hologram and thereby producing a three-dimensional real image of said pattern at the location of said object; and replacing said three-dimensional object by a photosensitized object having substantially the same shape as said threedimensional object without said pattern placed at the position of said real image whereby every accessible surface of said photosensitized object simultaneously is exposed to said real image.
Claim 3
Dependent Claim
142 words
A holographic photoprinting optical system comprising: a hologram representing a three-dimensional pattern on the accessible surfaces of a three-dimensional object; said hologram being produced by an object beam of monochromatic spatially coherent light reflected from said object and a reference beam of monochromatic spatially coherent light of the same frequency as said object beam; means for producing a conjugate beam of light which is the conjugate of said reference beam; said conjugate beam illuminating said hologram and being modulated thereby; means for directing the modulated conjugate beam to a location where a three-dimensional real image of said pattern on said object is produced; and a photosensitized object having substantially the same shape as said three-dimensional object without said pattern placed at the position of said real image whereby every accessible surface of said photosensitized object simultaneously is exposed to said real image.
Claim 4
Dependent Claim
142 words
A holographic photoprinting optical system comprising: a hologram representing a three-dimensional pattern on the accessible surfaces of a three-dimensional object; said hologram being produced by an object beam of monochromatic spatially coherent light reflected from said object and a reference beam of monochromatic spatially coherent light of the same frequency as said object beam; means for producing a conjugate beam of light which is the conjugate of said reference beam; said conjugate beam illuminating said hologram and being modulated thereby; means for directing the modulated conjugate beam to a location where a three-dimensional real image of said pattern on said object is produced; and a photosensitized object having substantially the same shape as said three-dimensional object without said pattern placed at the position of said real image whereby every accessible surface of said photosensitized object simultaneously is exposed to said real image.
Claim 5
Dependent Claim
24 words
The system defined in claim 2 wherein said means for directing said modulated conjugate beam includes a concave mirror partially surrounding said duplicate object.
Claim 6
Dependent Claim
11 words
The system defined in claim 2 wherein said hologram is flat.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |