Two-dimensional/three dimensional graphic material and method of making same

• US 5,956,164 A
• Filed: 01/27/1998
• Issued: 09/21/1999
• Est. Priority Date: 05/03/1993
• Status: Expired due to Fees

• Current Assignee: Crown Roll Leaf, Inc.
• Original Assignee: Crown Roll Leaf, Inc.
• Inventors: Waitts, Robert Rocco
• Primary Examiner(s): Spyrou, Cassandra C.
• Assistant Examiner(s): Juba, Jr., John
• Application Number:
  US09/013,834
• Time in Patent Office: 602 Days
• Field of Search: 359/1, 359/2, 359/22, 359/24, 359/25, 359/900, 359/567, 283/86, 264/1.31, 264/1.34, 428/30
• US Class Current: 359/2
• CPC Class Codes: B42D 25/328 Diffraction gratings; Holograms
• CPC Class Codes: B44F 1/10 Changing, amusing, or secret pictures
• CPC Class Codes: G03H 1/0244 Surface relief holograms replicating hologram without interference recording G03H1/0276
• CPC Class Codes: G03H 1/028 by embossing
• CPC Class Codes: G03H 1/2249 Holobject properties
• CPC Class Codes: G03H 1/26 Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
• CPC Class Codes: G03H 2001/2257 Straddling the hologram
• CPC Class Codes: G03H 2001/226 Virtual or real
• CPC Class Codes: G03H 2210/30 3D object
• CPC Class Codes: G03H 2210/32 3D+2D, i.e. composition of 3D and 2D sub-objects, e.g. scene in front of planar background
• CPC Class Codes: G03H 2210/52 Alphanumerical
• CPC Class Codes: G03H 2250/36 Conform enhancement layer
• CPC Class Codes: Y10S 359/90 Methods

Abstract

Graphic material includes at least one area bearing a hologram and at least one area bearing a diffraction grating. Preferably, the diffraction grating and the hologram are simultaneously viewable from at least one perspective. The graphic material is made using an embossing die grown from a precursor blank which has been embossed in discrete areas with a holographic microtexture and then partially overstamped with a diffraction grating microtexture. The stamping of the blank may be effected by pressing a suitably shaped die against a shim bearing a diffraction grating microtexture for forming the microtexture in the die shape on the blank.

Claims

1. A method of making graphic material, comprising the steps of:

(a) forming a visible light hologram continuously over a first area of said graphic material;

(b) forming a non-holographic diffraction grating for diffracting visible light continuously over a second area of said graphic material, separate from, but co-planar with said first area, by creating a series of parallel grooves, said steps of forming said hologram and forming said non-holographic diffraction grating occurring simultaneously via the microembossing of a single surface of an embossable media; and

(c) simultaneously metallizing at least said first and second areas of said single surface after said first and second areas have been formed

further comprising the steps of embossing a surface of a blank with a negative impression of a microtexture constituting said hologram and embossing said surface of said blank with a negative impression of a microtexture constituting said non-holographic diffraction grating and growing an embossing shim from said surface of said blank for microembossing said embossable media,

wherein said step of embossing said surface of said blank with said negative impression of said microtexture constituting said non-holographic diffraction grating includes positioning a shim having a non-holographic diffraction grating microtexture between said blank and a die and pressing said die against said shim and said blank to impress said non-holographic microtexture of said shim in said blank.

2. The method of claim 1, wherein said hologram is a rainbow hologram.

3. The method of claim 1, wherein at least a portion of the hologram and at least a portion of the non-holographic diffraction grating are simultaneously viewable at a selected viewing orientation.

4. The method of claim 1, wherein the first area and the second area are adjacent to each other.

5. The method of claim 1, wherein the non-holographic diffraction comprises a textual matter.

6. The method of claim 1, wherein the non-holographic diffraction comprises representational indicia.

7. The method of claim 1, wherein the hologram comprises a graphic pattern.

8. The method of claim 1, further comprising the step of forming a diffracting grating in a third area of the graphic material, the second and third areas being separate and distinct and co-planar with the first area.

9. The method of claim 1, wherein the second area is surrounded by the first area.

10. The method of claim 1, wherein the first area is surrounded by the second area.

11. The method of claim 1, further comprising the step of forming a non-diffractive matrix area between the first and second areas.

12. The method of claim 1, wherein the second area contains a plurality of discrete subdivisions, wherein each subdivision has a relative orientation angle that differs from an orientation angle of at least one other subdivision.

13. The method of claim 12, wherein the step of growing an embossing shim comprises the step of metallizing the surface of the blank.

14. The method of claim 13, wherein the step of growing an embossing shim further comprises the step of electroplating the surface of the blank.