Information recording device for camera with function for controlling information recording position on film

• US 5,504,546 A
• Filed: 09/09/1994
• Issued: 04/02/1996
• Est. Priority Date: 08/05/1991
• Status: Expired due to Term

• Current Assignee: Nikon Corporation
• Original Assignee: Nikon Corporation
• Inventors: Kazami, Kazuyuki, Yokonuma, Norikazu, Hibino, Hideo
• Primary Examiner(s): Gellner, M. L.
• Assistant Examiner(s): LEE, EDDIE C H
• Application Number:
  US08/305,662
• Time in Patent Office: 571 Days
• Field of Search: 354/105, 354/106, 354/173.1, 354/173.11
• US Class Current: 396/310
• CPC Class Codes: G03B 17/24 with means for separately producing marks on the film, e.g. title, time of exposure
• CPC Class Codes: G03B 2217/244 Magnetic devices

Abstract

Information recording device according to the invention is of the type which records information in an information recording area of each image frame on a film, as the film is advanced by film feeding mechanism. The device comprises an information recording head positioned downstream, with respect to the film feeding direction, of the front end of the information recording area of the image frame opposed to an exposure aperture of the camera; a timer for measuring the time elapsed after the start of film feeding by the film feeding mechanism; and a controller for causing the information recording head to start the information recording in the information recording area of the film when the timer measures a time required, after the start of film feeding, for the front end of the information recording area to reach the information recording head.

Claims

1. An information recording device used in a camera, for recording information in information recording areas corresponding to respective image frames on a film as the film is advanced by film feeding means, comprising:

information recording means for recording information in said information recording areas, said information recording means being disposed so as to be in a downstream position in a film feeding direction with respect to a front end of the information recording area corresponding to an image frame positioned at an exposure position opposite to an exposure aperture of the camera;

timer means for measuring time elapsed from a start of film feeding by the film feeding means; and

control means for causing said information recording means to start information recording in said corresponding information recording area in response to measurement by said timer means, after the start of film feeding of said image frame from the exposure position, of at least a predetermined time required for said front end of said corresponding information recording area to reach said information recording means.

2. An information recording device used in a camera, for recording information in information recording areas corresponding to respective image frames on a film as the film is advanced by film feeding means, comprising:

information recording means for recording information in said information recording areas, said information recording means being disposed so as to be in a downstream position at a predetermined distance in a film feeding direction from a front end of the information recording area corresponding to an image frame positioned at an exposure position opposite to an exposure aperture of the camera;

film feed amount measuring means for measuring a feed amount of the film fed by the film feeding means; and

control means for causing said information recording means to start information recording in said corresponding information recording area in response to measurement by said film feed amount measuring means, after the start of film feeding of said image frame from the exposure position, of at least a predetermined film feed amount corresponding to said predetermined distance.

3. A device according to claim 2, wherein said film feed amount measuring means comprises a pulse generator capable of generating a signal for film feeding of a predetermined amount.

4. A device according to claim 2, wherein said film feed amount measuring means comprises a perforation detector which is so positioned as to detect a perforation on the film upon feeding thereof by a predetermined amount.

5. An information recording device for recording information in information recording areas corresponding to respective image frames on a film, comprising:

a recorder for recording information in said recording areas, said recorder and the film being relatively movable to each other, and said recorder being positioned so as to be spaced by a predetermined amount from a leading edge of a recording area stopped at a predetermined position;

a timer which measures a predetermined time required for relatively moving said recorder and the film by said predetermined amount to position said recorder opposite to said leading edge of said recording area, said timer starting the measurement of time at a predetermined point of time; and

a controller electrically connected between said timer and said recorder and responsive to said timer for causing said recorder to start information recording in said recording area in response to completion of the measurement of said predetermined time by said timer.

6. An information recording device according to claim 5, further comprising a film feeding mechanism for advancing said film, and wherein said predetermined point of time is a time at which film advancement by said film feeding mechanism starts.

7. An information recording device according to claim 5, wherein said predetermined position corresponds to an image frame position opposite to an exposure aperture of the information recording device, and said recorder is spaced downstream from said leading edge in a film advancing direction.

8. An information recording device according to claim 5, wherein said information recording in said information recording areas by said recorder is performed by a relative movement between the recorder and said film after completion of the measurement of said predetermined time by said timer.

9. An information recording device according to claim 5, wherein said predetermined time is at least a time required for said relative movement of said recorder and said film to reach a predetermined speed for information recording.

10. An information recording device for recording information in information recording areas corresponding to respective image frames on a film, comprising:

a recorder for recording information in said recording areas, said recorder and the film being relatively movable to each other, and said recorder being positioned so as to be spaced by a predetermined amount from a leading edge of a recording area stopped at a predetermined position;

a film feeding amount measuring device which measures an amount of the relative movement between said recorder and said film until said predetermined amount is reached to position said recorder opposite to said leading edge of said recording area, said film feeding amount measuring device starting the measurement at a predetermined point of time; and

a controller electrically connected between said film feeding amount measuring device and said recorder and responsive to said film feeding amount measuring device for causing said recorder to start information recording in said recording area in response to completion of the measurement by said film feeding amount measurement device.

11. An information recording device according to claim 10, further comprising a film feeding mechanism for advancing said film, and wherein said predetermined point of time is a time at which film advancement by said film feeding mechanism starts.

12. An information recording device according to claim 10, wherein said predetermined position corresponds to an image frame position opposite to an exposure aperture of the information recording device, and said recorder is spaced downstream from said leading edge in a film advancing direction.

13. An information recording device according to claim 10, wherein said information recording in said information recording areas by said recorder is performed upon a relative movement between the recorder and said film after completion of the measurement by said film feeding amount measuring device.

14. An information recording device according to claim 10, wherein said predetermined amount is at least an amount required for said relative movement of said recorder and said film to reach a predetermined speed for information recording.

15. An information recording method for recording information in information recording areas corresponding to respective image frames on a film, comprising the steps of:

moving a recorder, which records information in said recording areas, and the film relative to each other;

measuring a predetermined time required for said relative movement to reach a predetermined amount at which the recorder is positioned opposite to a leading edge of a said recording area, the measurement of the predetermined time being started at a predetermined point of time; and

causing said recorder to start information recording in said recording area in response to completion of the measurement of said predetermined time.

16. An information recording method according to claim 15, wherein said predetermined time is at least a time required for said relative movement of said recorder and said film to reach a predetermined speed for information recording.

17. An information recording method for recording information in information recording areas corresponding to respective image frames on a film, comprising:

moving a recorder, which records information in said recording areas, and the film relative to each other;

measuring an amount of the relative movement between said recorder and said film until a predetermined amount is reached to position said recorder opposite to a leading edge of a said recording area, the measurement being started at a predetermined point of time; and

causing said recorder to start information recording in said recording area in response to completion of the measurement of the predetermined amount of the relative movement.

18. An information recording method according to claim 17, wherein said predetermined amount is at least an amount required for said relative movement of said recorder and said film to reach a predetermined speed for information recording.