Position adjusting device

• US 6,041,194 A
• Filed: 04/17/1997
• Issued: 03/21/2000
• Est. Priority Date: 04/18/1996
• Status: Expired due to Fees

• Current Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
• Original Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
• Inventors: Yamamoto, Yasuhiro
• Primary Examiner(s): Metjahic, Safet
• Assistant Examiner(s): Chizmar, John
• Application Number:
  US08/842,876
• Time in Patent Office: 1,069 Days
• Field of Search: 396/30, 396/429-430, 396/315, 396/320
• US Class Current: 396/429
• CPC Class Codes: H04N 2209/049 having three pick-up sensors
• CPC Class Codes: H04N 23/15 Image signal generation with circuitry for avoiding or correcting image misregistration
• CPC Class Codes: H04N 23/50 Constructional details
• CPC Class Codes: H04N 23/84 for processing colour signals
• CPC Class Codes: H04N 25/48 Increasing resolution by shifting the sensor relative to the scene

Abstract

A position adjusting device is provided in an electro-developing type camera using an electro-developing recording medium by which an image is electronically developed. The electro-developing recording medium has first, second, and third recording areas in which green, red, and blue images are recorded, respectively. The electro-developing recording medium is supported by a recording medium supporting member through a piezoelectric transducer. The recording medium supporting member and the electro-developing recording medium are moved upward and downward by rotating a drive screw, so that one of the first, second, and third recording areas is positioned in the optical path of the photographing optical system. The position of the electro-developing recording medium is adjusted in a horizontal direction by extending and contracting the piezoelectric transducer.

Claims

1. A device for adjusting a position of an electro-developing recording medium in which an object image formed by a photographing optical system is electronically developed, said electro-developing recording medium having a plurality of recording areas in which color images corresponding to said object image are sequentially recorded, said color images being obtained by color separating a color image into a plurality of primary color images, said device comprising:

a recording medium moving mechanism which moves said electro-developing recording medium to a position where one of said recording areas is positioned in an optical path of the photographing optical system; and

an adjusting mechanism which adjusts a position of said electro-developing recording medium so that a relative position of each of said color images formed by said photographing optical system with respect to each of said recording areas is substantially the same.

2. A device according to claim 1, further comprising a sensing mechanism which senses said relative position with respect to each of said recording areas.

3. A device according to claim 2, wherein said sensing mechanism comprises an area sensor which optically senses at least a portion of said object image.

4. A device according to claim 3, further comprising a main mirror and a sub-mirror, said main mirror having a front surface which faces said photographing optical system, and a rear surface, on which said sub-mirror is attached, said main mirror being a half mirror so that a light beam passing through said photographing optical system is directed to said sub-mirror.

5. A device according to claim 3, wherein said area sensor and said electro-developing recording medium are provided at optically equivalent positions.

6. A device according to claim 3, wherein said area sensor senses a central portion of said object image.

7. A device according to claim 1, wherein said adjusting mechanism adjusts said position in a direction perpendicular to a line along which said recording medium moving mechanism moves said electro-developing recording medium.

8. A device according to claim 1, wherein said adjusting mechanism comprises a piezoelectric transducer.

9. A device according to claim 1, wherein said adjusting mechanism is mounted on said recording medium moving mechanism.

10. The device according to claim 1, said adjusting mechanism moving said electro-developing recording medium in a direction of movement of said recording medium by said moving mechanism and in a direction transverse to said direction of movement of said recording medium by said moving mechanism.

11. A device for adjusting a recording position of an electro-developing recording medium in which an object image formed by a photographing optical system is electronically developed, said electro-developing recording medium having a plurality of recording areas in which color images corresponding to said object image are sequentially recorded, said color images being obtained by color separating a color image into a plurality of primary color images, said device comprising:

a recording medium moving mechanism which moves said electro-developing recording medium to said recording position where one of said recording areas is positioned in the optical path of said photographing optical system;

a forming mechanism which sequentially forms positioning marks on said electro-developing recording medium when each of said color images is recorded in each of said recording areas, said positioning mark indicating a relative position of each of said color images formed in said recording area; and

an adjusting mechanism that adjusts one of said forming mechanism and said recording medium positioned by said recording medium moving mechanism in such a manner that a relative position of each of said positioning marks with respect to each of said recording areas becomes constant.

12. A device according to claim 11, further comprising a sensing mechanism which senses a relative position of said object image with respect to each of said recording areas.

13. A device according to claim 12, wherein said sensing mechanism comprises an area sensor which optically senses at least a portion of said object image.

14. A device according to claim 11, wherein said adjusting mechanism adjusts said recording position in a first direction perpendicular to a line along which said recording medium moving mechanism moves said electro-developing recording medium, and in a second direction parallel to said line.

15. A device according to claim 11, wherein said adjusting mechanism comprises a piezoelectric transducer.

16. The device according to claim 11, said adjusting mechanism adjusting a position of said one of said forming mechanism and said recording medium by movement in a direction of movement of said recording medium by said moving mechanism and in a direction transverse to said direction of movement of said recording medium by said moving mechanism.

17. A device for adjusting a position of an electro-developing recording medium in which an object image formed by a photographing optical system is electronically developed, said electro-developing recording medium having a plurality of recording areas in which color images corresponding to said object image are sequentially recorded, said color images being obtained by color separating a color image into a plurality of primary color images, said device comprising:

a positioning mechanism which moves said electro-developing recording medium by a first amount to a position where one of said plurality of recording areas is positioned in an optical path of said photographing optical system; and

an adjusting mechanism which adjusts said electro-developing recording medium by a second amount, said second amount being less than said first amount, to adjust the position of said electro-developing recording medium so that a relative position of each of said object images formed by said photographing optical system with respect to each of said recording areas is substantially the same.

18. The device according to claim 17, said adjusting mechanism adjusting a position of said electro-developing recording medium in a direction in which said positioning mechanism moves said electro-developing recording medium and in a direction transverse to said direction in which said positioning medium moves said electro-developing recording medium.

19. The device for adjusting the device according to claim 17, wherein said adjusting mechanism includes a piezoelectric transducer.

20. The device according to claim 19, said piezoelectric transducer moving said electro-developing recording medium in a direction transverse to a direction of movement of said electro-developing recording medium by said positioning mechanism.