Patent US999368A successfully refreshed from Google Patents.
Patent US3568780A successfully refreshed from Google Patents.
Patent US5260814A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5260814A Expired / Lapsed US ⏱️ 0.0 years remaining

Production of full color stereographic holograms

Assignee: Advanced Holographic Imaging Technologies Inc
•
Filing: 1992-04-03
•
Granted: 1993-11-09
•
Expires: 2012-04-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A method and apparatus for producing temporally coherent, full color holograms is disclosed whereby a linear array of stereographically positioned cameras are simultaneously triggered to obtain a temporally coherent sequence of full color exposures. The exposures are then sequentially exposed upon an H1 plate using multiple wavelength, "white" laser light to obtain a virtual full color hologram image in a single step operation.

Inventors

  • 👤 Steven L. Smith
  • 👤 Tung H. Jeong

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 02:32
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/26; G03H1/268; G03H1/04; G03H1/0402; G03H2001/0413; G03H2001/0415; G03H2001/269; G03H2222/00; G03H2222/10; G03H2222/17; G03H2222/18

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 257 words
An apparatus for photographically recording temporally coherent images of multiple views of a subject for use in producing a stereographically correct, temporally coherent hologram, comprising: a multiple lens exposure system having a plurality of lenses, each said lens having a shutter associated therewith, and means for triggering each of said shutters, said lenses being disposed relative to the subject so that said lenses all face a front side and are trained in the general direction of the subject; each of said lenses being disposed in a specific spaced relationship relative to the adjacent lenses in a stereographic arrangement to approximate the stereoscopic view from the eyes of an individual observing the subject from the location of the respective lenses; and means for controlling the triggering of said shutters to obtain multiple, temporally coherent exposures of the subject, so that when such exposures are placed side-by-side in an arrangement corresponding to the relative positioning of said lenses, and are sequentially projected within a holographic optical printer wherein a light sensitive holographic plate is positioned to be exposed to an interference pattern created by the interference of a reference beam and an object beam thereupon, the object beam being directed upon and through said multiple coherent exposures in sequence, the reference beam being coherent to said object beam, so that a temporally coherent, stereographically correct image of the subject is obtained, the spacing of said lenses being designed so that said multiple coherent exposures have a spacing corresponding to a desired spacing of images projected upon the holographic plate.
Claim 2
Independent Claim 257 words
An apparatus for photographically recording temporally coherent images of multiple views of a subject for use in producing a stereographically correct, temporally coherent hologram, comprising: a multiple lens exposure system having a plurality of lenses, each said lens having a shutter associated therewith, and means for triggering each of said shutters, said lenses being disposed relative to the subject so that said lenses all face a front side and are trained in the general direction of the subject; each of said lenses being disposed in a specific spaced relationship relative to the adjacent lenses in a stereographic arrangement to approximate the stereoscopic view from the eyes of an individual observing the subject from the location of the respective lenses; and means for controlling the triggering of said shutters to obtain multiple, temporally coherent exposures of the subject, so that when such exposures are placed side-by-side in an arrangement corresponding to the relative positioning of said lenses, and are sequentially projected within a holographic optical printer wherein a light sensitive holographic plate is positioned to be exposed to an interference pattern created by the interference of a reference beam and an object beam thereupon, the object beam being directed upon and through said multiple coherent exposures in sequence, the reference beam being coherent to said object beam, so that a temporally coherent, stereographically correct image of the subject is obtained, the spacing of said lenses being designed so that said multiple coherent exposures have a spacing corresponding to a desired spacing of images projected upon the holographic plate.
Claim 3
Dependent Claim 27 words
The apparatus as defined in claim 1, further including an elongate support means having a first end, a second end, a front side and a rear side.
Claim 4
Dependent Claim 15 words
The apparatus as defined in claim 2 wherein said support means is an optical rail.
Claim 5
Dependent Claim 20 words
The apparatus as defined in claim 1 wherein said triggering means is adapted to simultaneously trigger all of said shutters.
Claim 6
Dependent Claim 17 words
The apparatus as defined in claim 1 wherein each said lens and associated shutter is a camera.

References Cited (Backward Citations)

US5022727A Cited
US5134504A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-11-08 1997-05-10 1997-11-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-11-08 2001-05-10 2001-11-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-11-08 2005-05-10 2005-11-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag