Lenticular media having spatially encoded portions

• US 5,699,190 A
• Filed: 12/05/1995
• Issued: 12/16/1997
• Est. Priority Date: 12/05/1995
• Status: Expired due to Term

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Tuschong, Richard John, Young, Richard Dean
• Primary Examiner(s): Nelms, David C.
• Assistant Examiner(s): MACK, RICKY LEVERN
• Application Number:
  US08/567,790
• Time in Patent Office: 742 Days
• Field of Search: 359/619, 359/620, 359/628, 359/455, 359/458, 359/463, 345/32, 345/139
• US Class Current: 359/619
• CPC Class Codes: G02B 3/0025 Machining, e.g. grinding, polishing, diamond turning, manufacturing of mould parts
• CPC Class Codes: G02B 3/0031 Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
• CPC Class Codes: G02B 3/0043 Inhomogeneous or irregular arrays, e.g. varying shape, size, height
• CPC Class Codes: G02B 3/005 arranged along a single direction only, e.g. lenticular sheets G02B3/0043 takes precedence
• CPC Class Codes: G02B 3/0075 characterized by non-optical structures, e.g. having integrated holding or alignment means

Abstract

A lenticular media (10) has an encoded portion (12) adjoining a main portion (14). The encoded portion (12) is located to provide alignment and registration for precisely determining the location of lenticules (16) in the main portion (14).

Claims

1. A lenticular media comprising at least one encoded portion adjoining a main portion, wherein said encoded portion is positioned to provide alignment and registration for precisely determining the location of the main portion, said encoded portion comprising a plurality of planar regions, each of said planar regions being separated by at least one lenticule.

2. The lenticular media according to claim 1 wherein said media comprises sheet form.

3. The lenticular media according to claim 2 wherein said media is a transparent plastic.

4. The lenticular media according to claim 1 wherein said main portion comprises a plurality of lenticules.

5. The lenticular media according to claim 4 wherein each of said lenticules comprises a cylindrical conic section having a width (w₁), and said planar region has a width (w₂) substantially equal to the width (w₁).

6. The lenticular media according to claim 5 wherein said lenticules are arranged having a pitch defined by spacing between adjacent centerlines.

7. The lenticular media according to claim 6 wherein said lenticules have a periodicity defined by a constant pitch.

8. The lenticular media according to claim 4 wherein said lenticules are arranged in a parallel array.

9. The lenticular media of claim 1, wherein each of said plurality of planar regions has a centerline (c₂) and said at least one lenticule has a centerline (c₁) wherein said centerline (c₂) of one of said planar regions is located at a predetermined distance from centerline (c₁) of any one of said at least one lenticule in said main portion.

10. The lenticular media recited in claim 1 wherein at least one encoded portion having a planar region is adjoined to at least one lenticule forming an encoded lenticular region.

11. The lenticular media recited in claim 10 wherein a plurality of encoded lenticular regions are adjoined to form an array of encoded lenticular regions, and wherein each encoded lenticular region comprises an encoded portion having a planar region and at least one lenticule.

12. An article of manufacture comprising at least one encoded portion adjoining a main portion, wherein said encoded portion is positioned to provide alignment and registration for precisely determining the location of the main portion, and wherein said encoded portion comprises a plurality of planar regions, each said planar regions being separated by at least one lenticule.

13. The article of manufacture according to claim 12 wherein said media comprises sheet form.

14. The article of manufacture according to claim 13 wherein said media is a transparent plastic or glass.

15. The article of manufacture according to claim 12 wherein said main portion comprises a plurality of lenticules.

16. The article of manufacture according to claim 15 wherein each of said lenticules comprises a cylindrical conic section having a width (w₁), and said planar region has a width (w₂) substantially equal to the width (w₁).

17. The article of manufacture according to claim 16 wherein said lenticules have a periodicity defined by a constant pitch.

18. The article of manufacture according to claim 17 wherein said lenticules are arranged in a parallel array.

19. The article of manufacture recited in claim 15 wherein each one of said plurality of planar regions has a centerline (c₂) and each one of said plurality of lenticules has a centerline (c₁) and wherein the centerline (c₂) of one of said plurality of planar regions is located at a predetermined distance from the centerline (c₁) of any one of said lenticules in said main portion.

20. The article of manufacture recited in claim 19 wherein at least one encoded portion having a planar region is adjoined to at least one lenticule, and wherein said adjoining encoded portion and said lenticule forms an encoded lenticular region.

21. The article of manufacture recited in claim 20 wherein a plurality of encoded lenticular regions are adjoined to form an array of encoded lenticular regions, and wherein each encoded lenticular region comprises an encoded portion having a planar region and at least one lenticule.

22. A method of forming lenticular media having a main portion and an encoded portion therein, said encoded portion being provided for alignment and registration of said main portion, the method comprising the steps of:

providing a first surface for receiving a negative lenticular media pattern;

providing a second surface for imparting said negative lenticular media pattern in said first surface;

providing a third surface for receiving said negative lenticular media pattern from said first surface;

engageably contacting said second surface in predetermined regions of said first surface so as to form said main portion and encoded portion of said negative lenticular media pattern on said first surface, said second surface having geometry for imparting said negative lenticular media pattern in said first surface; and

,

impressing said negative lenticular media pattern of said first surface into contact with said third surface thereby forming a lenticular media pattern in said third surface, said third surface containing said lenticular media pattern further defining lenticular media.

23. The method recited in claim 22 further comprising the step of finishing said third surface so as to produce a predetermined sized lenticular media.

24. The method recited in claim 23 wherein said finishing step includes cutting said lenticular media at a predetermined distance from said encoded portion.

25. The method of claim 22 wherein said first surface is a chill roll surface.

26. The method of claim 22 wherein said first surface is a mold cavity surface.