Position indication on photographic base

• US 20020030704A1
• Filed: 08/03/2001
• Published: 03/14/2002
• Est. Priority Date: 08/07/2000
• Status: Active Grant

• Current Assignee: Fujifilm Manufacturing Europe BV (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Korngold, Bruno Alexander, Verhoeven, Josephus Nicolaas Petrus, Sandifort, Robert Hendrik Johan, van Hooff, Antonius Jozef
• Granted Patent: US 6,814,514 B2
• Time in Patent Office: Days
• US Class Current: 347/1
• CPC Class Codes: B65H 2220/01 indicating an entity as a function of which control, adjustment or change is performed, i.e. input
• CPC Class Codes: B65H 2220/03 indicating an entity which is measured, estimated, evaluated, calculated or determined but which does not constitute an entity which is adjusted or changed by the control process per se
• CPC Class Codes: B65H 2301/46018 involving location or further processing of splice
• CPC Class Codes: B65H 2301/5111 Printing; Marking
• CPC Class Codes: B65H 2511/23 Coordinates, e.g. three dimensional coordinates
• CPC Class Codes: B65H 2511/512 Marks, e.g. invisible to the human eye; Patterns
• CPC Class Codes: B65H 26/02 responsive to presence of irregularities in running webs
• CPC Class Codes: B65H 2701/1719 Photosensitive, e.g. exposure, photographic or phosphor
• CPC Class Codes: G03C 11/02 Marking or applying text

Abstract

A method of measuring a down-web coordinate is provided. A time-interval, elapsed since a detection of a position-indicating mark applied on a web, is related to a measured velocity. Upon detection of a position-indicating mark, the measured down-web coordinate is synchronised with the indicated down-web coordinate of said mark. The down-web coordinate can be measured in an ascending or a descending mode, depending on a detected roll-orientation information originated from said mark on said web. A selected lane pattern used for registration of the cross web position can be reversed automatically, depending on said roll-orientation information, originated from said mark on said web. A measured down-web starting position of a quality problem area on the web is marked by an ISO-hole.

Claims

1. Method of measuring a down-web coordinate by relating a time-interval, elapsed since a detection of a position-indicating mark applied on a web, to a measured velocity, characterised in that, upon detection of a position-indicating mark, the measured down-web coordinate is synchronised with the indicated down-web coordinate of said mark.

2. Method according to claim 1, wherein, the down-web coordinate is measured in an ascending or a descending mode, depending on a detected roll-orientation information originated from said mark on said web.

3. Method according to claim 2, wherein a selected lane pattern used for registration of the cross web position is reversed automatically, depending on said roll-orientation information, originated from said mark on said web.

4. Method according to any of the preceding claims, wherein a measured down-web starting position of a quality problem area is marked on the web by an ISO-hole.

5. Method for indicating a quality problem area on a web, characterized in that a down-web starting position of the quality problem area is marked on the web by an ISO-hole.

6. System for tracking quality problem areas at continuous-web products, comprising:

one or more detection systems for detecting down-web coordinates on a web from a plurality of position-indicating marks applied on said web;

one or more product-inspection-systems provided with length-measuring circuitry synchronised with said detected down-web coordinates;

a system for data-processing of quality problem areas at least storing the measured down-web coordinates of the respective quality problem areas;

a punch control system for ISO-hole punching provided with length-measuring circuitry synchronised with said detected down-web coordinates.

7. System according to claim 6, wherein the detection systems are suited for detecting a position-indication provided by digitised information contained in said mark.

8. System according to claim 7, wherein the detection systems are suited for detecting information about the roll-orientation provided by digitised information contained in said mark.

9. System for tracking the position of quality problem areas according to any of the preceding claims 6-8, wherein said inspection-system makes use of a web length-counter that is synchronised by loading the web length-counter with the relative down web coordinate information, originated from said mark on said web.

10. System according to claim 9, wherein said inspection-system'"'"'s web length-counter is automatically set into an ascending or descending counting mode, depending on said roll-orientation information, originated from said mark on said web.

11. System according to claim 9 or 10, wherein said inspection-system'"'"'s web length-counter switches automatically from individual counting-mode into synchronised counting-mode after being triggered via acknowledgement of said mark on said web.

12. System for tracking the position of quality problem areas according to any of the preceding claims 6-11, wherein said punch control system for ISO-hole punching makes use of a web length-counter that is synchronised by loading the web length-counter with the relative down web position information, originated from said mark on said web.

13. System according to claim 12, wherein said punch control system'"'"'s web length-counter is automatically set into an ascending or descending counting mode, depending on said roll-orientation information, originated from said mark on said web.

14. System according to claim 12 or 13, wherein said punch control system'"'"'s web length-counter switches automatically from individual countingmode into synchronised counting-mode after being triggered via acknowledgement of said mark on said web.

15. Photographic paper for application in a system according any of the preceding claims 6-14, comprising a photographic base, enclosed by a water repellent coating, on the front side of which base a photosensitive material is applied, and further comprising a plurality of position-indicating marks, characterized in that the plurality of position-indicating marks is applied directly on the photographic base.

16. Photographic paper according to claim 15, wherein the position-indication of a mark is provided by digitised information contained in said mark.

17. Photographic paper according to claims 15 or 16, wherein the roll-orientation of a mark is provided by digitised information contained in said mark.

18. Photographic paper according to claims 15-17, wherein said marks are not visible for the human eye.

19. Photographic paper according to claims 15-18, wherein said marks are applied to the back of the photographic base.

20. Photographic paper according to claims 15-19, wherein said marks are applied at regular intervals.

21. Photographic paper according to claims 15-20, wherein said marks are spaced at a distance ranging from 10 cm to 20 m.

22. Photographic paper according to claims 15-21, wherein said marks are applied by pinstamp techniques, moulding.

23. Photographic paper according to claims 15-21, wherein said marks are applied by laser engraving.

24. Photographic paper according to claim 23, wherein said mark is applied by ink jet printing.