Image processing apparatus and method for thermally processed films

• US 6,685,367 B1
• Filed: 06/13/2000
• Issued: 02/03/2004
• Est. Priority Date: 06/13/2000
• Status: Expired due to Fees

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Levy, David H., Irving, Mark E., Reynolds, James H.
• Primary Examiner(s): RUTLEDGE, DELLA J
• Application Number:
  US09/592,243
• Time in Patent Office: 1,330 Days
• Field of Search: 396/567-570, 396/575, 396/564, 355/27-29, 355/40, 355/30, 430/434, 241/236, 241/100, 241/375, 241/60
• US Class Current: 396/575
• CPC Class Codes: G03D 13/002 Heat development apparatus, e.g. Kalvar

Abstract

In the processing of thermal films, following processing, negatives are scanned and the resulting image files are digitally manipulated to render a desired output. Since it is desirable to return thermally processed films to a control location for silver recovery, the negatives are not returned to the consumer. In the method and apparatus of the present invention, after processing and scanning, the film or negative can be rendered unscannable by heating it to a temperature that develops the entire film to its maximum density and destroys the images on the film. As a further option, the film can be physically destroyed by use of for example, a shredder or illuminator downstream of the scanner.

Claims

1. An image processing apparatus comprising:

a first heater for heating an exposed photothermographic film to a first temperature suitable for thermal processing of the exposed film;

a scanner for scanning said processed photothermographic film to create a digital record file representative of images on said processed photothermographic film; and

a second heater for heating said processed photothermographic film after said processed photothermographic film is scanned, said second heater heating said processed photothermographic film to a second temperature which develops said film to a maximum density level.

2. An image processing apparatus according to claim 1, wherein said second temperature is equal to or greater than said first temperature.

3. An image processing apparatus according to claim 1, wherein said second heater is downstream of said scanner with respect to a conveying direction of said photothermographic film in said apparatus, and second temperature is suitable to destroy the images on said processed photothermographic film.

4. An image processing apparatus according to claim 1, wherein said second temperature is greater than said first temperature.

5. An image processing apparatus comprising:

an adjustable heating assembly having at least a first temperature setting suitable for thermal processing of an exposed thermal film and a second temperature setting equal to or higher than said first temperature setting suitable for destroying images on said thermally processed film; and

a scanner for scanning said thermally processed film to create a digital record file of images on said thermally processed film;

wherein after scanning, said thermally processed film is conveyed back to the heating assembly where the heating assembly is set at said second temperature setting for destroying the images on said thermally processed film.

6. An image processing apparatus according to claim 5, wherein said second temperature setting is greater than said first temperature setting.

7. An image processing apparatus comprising:

a heater for heating an exposed thermal film to a temperature suitable for thermal processing of said exposed film;

a scanner for scanning said thermally processed film to create a digital record file representative of images on said thermally processed film; and

a destroying member for destroying said thermally processed film after said film has been scanned.

8. An image processing apparatus according to claim 7, wherein said destroying member is a film shredder which shreds said film.

9. An image processing apparatus according to claim 7, wherein said destroying member is a high intensity illuminator.

10. An image processing apparatus according to claim 7, wherein said destroying member is a chemical treatment which obscures images on the film.

11. An image processing apparatus comprising:

a heater for heating an exposed thermal film to a temperature suitable for thermal processing of said exposed film;

a scanner for scanning said thermally processed film to create a digital record file representative of images on said thermally processed film; and

a destroying member for destroying said thermally processed film after said film has been scanned;

wherein said destroying member is a chemical treatment which binds the film onto itself so that it cannot be unwound.

12. An image processing method comprising the steps of:

heating an exposed thermal film to a first temperature suitable for thermal processing of said exposed film;

scanning said thermally processed film to create a digital record file representative of images on said thermally processed film; and

after said scanning step, heating said thermally processed film to a second temperature equal to or greater than said first temperature which destroys the images on said thermally processed film.

13. An image processing method comprising the steps of:

heating an exposed thermal film to a temperature suitable for thermal processing of said exposed film;

scanning said thermally processed film to create a digital record file representative of images on said thermally processed film; and

after said scanning step, destroying said thermally processed film.

14. A method according to claim 13, wherein said destroying step comprising shredding said thermally processed film.

15. A method according to claim 13, wherein said destroying step comprises illuminating said thermally processed film with a high intensity illuminator.

16. A method according to claim 13, wherein said destroying step comprises heating said film at said temperature for a period which is equal to or greater than a period for processing said film.

17. A method according to claim 13, wherein said destroying step comprises chemically treating said film to obscure images on the film.

18. An image processing method comprising the steps of:

heating an exposed thermal film to a temperature suitable for thermal processing of said exposed film;

scanning said thermally processed film to create a digital record file representative of images on said thermally processed film; and

after said scanning step, destroying said thermally processed film;

wherein said destroying step comprises chemically treating said film to bind the film onto itself so that it cannot be unwound.

19. An image processing apparatus comprising:

a heater adapted to maintain a temperature suitable for thermal processing of an exposed thermal film; and

a scanner for scanning said thermally processed film to create a digital record file of images on said thermally processed film, said scanner producing light exposure output at levels and spectral regions sufficient to fully expose a photographic element on the film;

wherein after scanning, said thermally processed film is conveyed back to the heater where, due to said light exposure by said scanner, the thermal process at said heater destroys the images on said thermally processed film.