EP0107362A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Photographic material bearing holographic images, and methods of providing and of reconstructing holographic images
Assignee: Individual
•
Filing: 1983-09-26
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Granted: —
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Expires: 2003-09-26
Abstract
Abstract A method of providing a holographic image of an object in the form of an interference pattern upon a sheet of photographic material, characterised in that said sheet extends arcuately about an axis, at least part of said object is disposed within the sector defined by said arcuate sheet, and a single divergent beam of light is directed substantially longitudinally of the said axis to illuminate simultaneously both said arcuate sheet and said part of the object.
Inventors
- 👤 Yves Jean Rossignol
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 06:19
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/0402; G03H2001/0413; G03H2001/0415; G03H2001/0421; G03H2001/0426; G03H2001/043; G03H2223/00; G03H2223/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A method of providing a holographic image of an object in the form of an interference pattern upon a sheet of photographic material, characterised in that said sheet extends arcuately about an axis, at least part of said object is disposed within the sector defined by said arcuate sheet, and a single divergent beam of light is directed substantially longitudinally of the said axis to illuminate simultaneously both said arcuate sheet and said part of the object.
Claim 2
Independent Claim
77 words
A method of providing a holographic image of an object in the form of an interference pattern upon a sheet of photographic material, characterised in that said sheet extends arcuately about an axis, at least part of said object is disposed within the sector defined by said arcuate sheet, and a single divergent beam of light is directed substantially longitudinally of the said axis to illuminate simultaneously both said arcuate sheet and said part of the object.
Claim 3
Dependent Claim
12 words
A method according to Claim 1, wherein said beam comprises coherent light.
Claim 4
Dependent Claim
24 words
A sheet of photographic material bearing an interference pattern constituting a holographic image formed or produced by a method according to either preceding Claim.
Claim 5
Independent Claim
82 words
A method of reconstructing a holographic image in . the form of a spatial image from a sheet of photographic material bearing an interference pattern, characterised in that, said sheet is disposed to extend arcuately about an axis and is illuminated by a divergent beam directed generally longitudinally of the axis such as to be incident both on said arcuate sheet and on the sector defined by said arcuate sheet, and such that the sector is the location for said spatial image.
Claim 6
Independent Claim
82 words
A method of reconstructing a holographic image in . the form of a spatial image from a sheet of photographic material bearing an interference pattern, characterised in that, said sheet is disposed to extend arcuately about an axis and is illuminated by a divergent beam directed generally longitudinally of the axis such as to be incident both on said arcuate sheet and on the sector defined by said arcuate sheet, and such that the sector is the location for said spatial image.
Claim 7
Dependent Claim
14 words
A method according to Claim 4, characterised in that said illumination is solely coherent.
Claim 8
Dependent Claim
15 words
A method according to Claim 4, characterised in that said illumination includes non-coherent "white" light.
Claim 9
Dependent Claim
21 words
A method according to any one of Claims 4 to 6 characterised in that said sheet is according to Claim 3.
Claim 10
Independent Claim
29 words
A method according to any one of Claims 1, 2, 4 - 7, preceding Claim, characterised in that the angular extent of the sheet is at least 180° approximately.
Claim 11
Independent Claim
25 words
A method according to any one of Claims 1, 2, 4 - 8, characterised in that the angular extent of the sheet is substantially 360°.
References Cited (Backward Citations)
No citation records indexed.
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