HOLOGRAPHIC LABEL WITH A RADIO FREQUENCY TRANSPONDER

• US 20030179150A1
• Filed: 03/21/2002
• Published: 09/25/2003
• Est. Priority Date: 03/21/2002
• Status: Active Grant

• Current Assignee: Brady Worldwide Incorporated (Brady Corporation)
• Original Assignee: Brady Worldwide Incorporated (Brady Corporation)
• Inventors: Jessen, Amy J., Adair, Paul C.
• Granted Patent: US 6,618,024 B1
• Time in Patent Office: Days
• US Class Current: 343/895
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/0776 the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• CPC Class Codes: G06K 19/16 the marking being a hologram or diffraction grating

Abstract

A label for identifying an object includes a radio frequency transponder and a hologram. The radio frequency transponder has an antenna and a transponder circuit sandwiched between two layers of material which form exterior surfaces of the transponder. The hologram comprises a first layer of non-metallic material applied to one of the exterior surfaces and forming a non-metallic reflector of light. A generally transparent second layer contains a holographic image and extends across the first layer. Because the reflective first layer is made of a non-metallic material, its close proximity to the radio frequency transponder does not detune the transponder as may occur when metallic holograms are placed in close proximity to the transponder. Thus the hologram provides a deterrent to unauthorized use of the label without affecting the operation of the radio frequency transponder.

Claims

1. A label for identifying an object, said label comprising:

a radio frequency transponder having an antenna and a transponder circuit connected to the antenna, wherein the antenna and the transponder circuit are formed on an inlay layer of material;

a hologram applied to a surface of the radio frequency transponder, wherein the hologram has a non-metallic film forming a reflector of light and an image layer adjacent to the non-metallic film and containing a holographic image; and

a mechanism for attaching the label to the object.

2. The label as recited in claim 1 wherein the image layer is transparent.

3. The label as recited in claim 1 wherein the mechanism for attaching the label to the object comprises adhesive applied to the inlay layer.

4. The label as recited in claim 1 wherein the antenna comprises a pattern of electrically conductive material applied to a surface of the inlay layer.

5. The label as recited in claim 1 wherein the non-metallic film of the hologram comprises a multiple layer reflective polymeric body.

6. The label as recited in claim 1 wherein the non-metallic film of the hologram comprises a multiple alternating layers of first and second polymeric materials.

7. The label as recited in claim 6 wherein the first and second polymeric materials have refractive indices which differ from each other by at least about 0.03.

8. A label for identifying an object, said label comprising:

an inlay layer of electrically non-conductive material and having opposing first and second surfaces;

an antenna formed by a pattern of electrically conductive material applied to the first surface of the inlay layer;

a transponder circuit connected to the antenna, wherein the transponder circuit and the antenna form a radio frequency transponder;

a hologram extending over the antenna and the transponder circuit, wherein the hologram includes a film, forming a non-metallic reflector of light, and an image layer adjacent to the film and containing a holographic image; and

a mechanism for attaching the label to the object.

9. The label as recited in claim 8 wherein the film of the hologram comprises a multiple layer reflective polymeric body.

10. The label as recited in claim 8 wherein the film of the hologram comprises a multiple, alternating layers of first and second polymeric materials.

11. The label as recited in claim 10 wherein the first and second polymeric materials have refractive indices which differ from each other by at least about 0.03.

12. The label as recited in claim 8 wherein the hologram is attached to the first surface of the inlay layer.

13. The label as recited in claim 8 wherein the image layer of the hologram is transparent.

14. The label as recited in claim 8 wherein the mechanism for attaching the label to the object comprises adhesive applied to the second surface of the inlay layer.

15. A label for identifying an object, said label comprising:

a radio frequency transponder having an antenna and a transponder circuit connected to the antenna, wherein the antenna and the transponder circuit are formed on an inlay layer of material;

a non-metallic, reflective film abutting the radio frequency transponder and forming a reflector of light; and

a mechanism for attaching the label to the object.

16. The label as recited in claim 15 further comprising an image layer adjacent to the non-metallic, reflective film and containing a holographic image.

17. The label as recited in claim 16 wherein the image layer is transparent.

18. The label as recited in claim 15 wherein the non-metallic, reflective film comprises a multiple layer reflective polymeric body.

19. The label as recited in claim 15 wherein the non-metallic, reflective film comprises a multiple alternating layers of first and second polymeric materials.

20. The label as recited in claim 19 wherein the first and second polymeric materials have refractive indices which differ from each other by at least about 0.03.