Claims
- 1. A privacy filter for use on an electronic display screen comprising:a flexible sheet of photopolymer film having a 180 degree field of view perpendicular to a first side of said sheet, said sheet of photopolymer film having at least one holographic image exposed thereon wherein no holographic image is viewable within a central field of view, said display screen is viewable through said photopolymer film within said central field of view, and said at least one holographic image is visible within left and right holographic fields of view disposed to the left and right sides of said central field of view.
- 2. The privacy filter of claim 1 wherein said central field of view is about 45 to about 60 degrees in angular dimension symmetrically centered about a centerline extending perpendicular to said sheet.
- 3. The privacy filter of claim 1 wherein said left and right holographic fields of view are about 30 to about 45 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 4. The privacy filter of claim 2 wherein said left and right holographic fields of view are about 30 to about 45 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 5. The privacy filter of claim 1 wherein said central field of view is about 60 degrees in angular dimension symmetrically centered about a centerline extending perpendicular to said sheet and said left and right holographic fields of view are about 30 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 6. The privacy filter of claim 1 wherein said at least one holographic image comprises a plurality of individual holographic images arranged in a predetermined pattern on said sheet of photopolymer film.
- 7. The privacy filter of claim 6 wherein said central field of view is about 45 to about 60 degrees in angular dimension symmetrically centered about a centerline extending perpendicular to said sheet.
- 8. The privacy filter of claim 7 wherein said left and right holographic fields of view are about 30 to about 45 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 9. The privacy filter of claim 6 wherein said left and right holographic fields of view are about 30 to about 45 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 10. The privacy filter of claim 6 further comprising a layer of adhering material disposed on a second side of said photopolymer film for adhering said photopolymer film to the surface of a display screen.
- 11. The privacy filter of claim 10 wherein said layer of adhering material comprises a sheet of static cling vinyl.
- 12. The privacy filter of claim 10 wherein said layer of adhering material comprises a layer of a pressure sensitive adhesive.
- 13. The privacy filter of claim 10 still further comprising a protective coating disposed on said first side of said photopolymer film.
- 14. The privacy filter of claim 1 further comprising a layer of adhering material disposed on a second side of said photopolymer film for adhering said photopolymer film to the surface of a display screen.
- 15. The privacy filter of claim 14 wherein said layer of adhering material comprises a sheet of static cling vinyl.
- 16. The privacy filter of claim 14 wherein said layer of adhering material comprises a layer of a pressure sensitive adhesive.
- 17. The privacy filter of claim 14 still further comprising a protective coating disposed on said first side of said photopolymer film.
- 18. A privacy filter for use on an electronic display screen comprising:a first flexible sheet of photopolymer film having a 180 degree field of view perpendicular to a first side of said sheet, said sheet of photopolymer film having at least one holographic image exposed thereon wherein no holographic image is visible within a central field of view, said display screen is viewable through said photopolymer film within said central field of view, and said at least one holographic image is visible within a left holographic field of view disposed to the left of said central field of view; and a second flexible sheet of photopolymer film having a 180 degree field of view perpendicular to a first side of said sheet, said sheet of photopolymer film having at feast one holographic image exposed thereon wherein no holographic image is visible within a central field of view, said display screen is viewable through said photopolymer film in said central field of view, and said at least one holographic image is visible within a right holographic field of view disposed to the right of said central field of view, said first photopolymer film being disposed in overlying relation with said second photopolymer film.
- 19. The privacy filter of claim 18 wherein said central field of view is about 60 degrees in angular dimension symmetrically centered about a centerline extending perpendicular to said sheet and said left and right holographic fields of view are about 30 degrees in angular dimension symmetrically arranged on opposing sides of said central field of view.
- 20. The privacy filter of claim 19 further comprising a layer of adhering material disposed on a second side of said second photopolymer film for adhering said photopolymer film to the surface of a display screen.
- 21. The privacy filter of claim 20 wherein said layer of adhering material comprises a sheet of static cling vinyl.
- 22. The privacy filter of claim 20 wherein said layer of adhering material comprises a layer of a pressure sensitive adhesive.
- 23. The privacy filter of claim 20 still further comprising a protective coating disposed on said first side of said first photopolymer film.
- 24. The privacy filter of claim 18 wherein said at least one holographic image in each of said first and second sheets of photopolymer films comprises a plurality of individual holographic images arranged in a predetermined pattern on said first and second sheets of photopolymer film.
- 25. The privacy filter of claim 18 further comprising a layer of adhering material disposed on a second side of said second photopolymer film for adhering said photopolymer film to the surface of a display screen.
- 26. The privacy filter of claim 25 wherein said layer of adhering material comprises a sheet of static cling vinyl.
- 27. The privacy filter of claim 25 wherein said layer of adhering material comprises a layer of a pressure sensitive adhesive.
- 28. The privacy filter of claim 25 still further comprising a protective coating disposed on said first side of said first photopolymer film.
Parent Case Info
This application claims the benefit of Provisional Application No. 60/255,554 filed dec. 14, 2000.
US Referenced Citations (7)
Provisional Applications (1)
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Number |
Date |
Country |
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60/255554 |
Dec 2000 |
US |