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US4918469A
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Diffractive color and texture effects for the graphic arts
Assignee: Individual
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Filing: 1987-11-17
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Granted: 1990-04-17
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Expires: 2007-11-17
Abstract
Abstract A method of producing color and texture effects on a surface (210,400) without the use of pigments or actual texturing. Diffraction patterns generated by interference between two light beams (220,230) are recorded in a suitable high-resolution photographic material (210,400) and are used instead of paints or inks to provide desired color and texture effects in the various regions (440,530) of an artistic or decorative composition. The resulting composition (210,400) may contain spectrally pure or mixed colors and a wide range of static or dynamic textural illusions visible under a variety of lighting conditions.
Inventors
- 👤 Stephen P. McGrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:05
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/18; G02B5/1842; G03; G03H; G03H1/00; G03H1/0005; G03H1/0011
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A method of forming a graphical composition, comprising combining a plurality of image regions, said image regions together forming an image, each of said image regions being recorded as a hologram, at least one of said image regions being limited by recording through a mask such that one image region does not overlay another image region.
Claim 2
Independent Claim
56 words
A method of forming a graphical composition, comprising combining a plurality of image regions, said image regions together forming an image, each of said image regions being recorded as a hologram, at least one of said image regions being limited by recording through a mask such that one image region does not overlay another image region.
Claim 3
Dependent Claim
25 words
The method of claim 1, wherein said image regions are combined by forming a second hologram from the reconstruction of a plurality of first holograms.
Claim 4
Dependent Claim
18 words
The method of claim 2, wherein said image regions represent variously colored portions of a plurality of surfaces.
Claim 5
Dependent Claim
49 words
The method of claim 2, wherein the reconstructions of said first holograms are projected onto a recording medium through respective masks placed between said first holograms and said recording medium such that the recordings of the reconstructions from said first holograms are limited to non-overlapping regions on said medium.
Claim 6
Dependent Claim
18 words
The method of claim 4, wherein said image regions represent variously colored portions of a plurality of surfaces.
Claim 7
Dependent Claim
11 words
A diffractive graphical composition formed by the method of claim 1.
References Cited (Backward Citations)
US4175750A
Cited
US4790612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |