Multiplexed motion picture camera

• US 6,523,956 B2
• Filed: 05/09/2001
• Issued: 02/25/2003
• Est. Priority Date: 05/09/2000
• Status: Active Grant

• Current Assignee: Jon Oshima
• Original Assignee: Jon Oshima
• Inventors: Oshima, Jon
• Primary Examiner(s): Adams, Russell
• Assistant Examiner(s): ESPLIN, DAVID B
• Application Number:
  US09/851,774
• Publication Number:
  US 20020024635A1
• Time in Patent Office: 657 Days
• Field of Search: 352/166, 352/67, 352/57, 352/49
• US Class Current: 352/166
• CPC Class Codes: G03B 19/18 Motion-picture cameras with non-intermittently running film G03B41/02
• CPC Class Codes: G03B 33/00 Colour photography, other than mere exposure or projection of a colour film printing apparatus G03B27/00; stereoscopic colour photography G03B35/00
• CPC Class Codes: G03B 35/04 with movement of beam-selecting members in a system defining two or more viewpoints
• CPC Class Codes: G03B 37/00 Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe

Abstract

A multiplexed motion picture camera comprising a sturdy plate for supporting a plurality of camera mechanisms, each camera mechanism provided with an adjustable support device, and connected to a common objective lens through an arrangement of lenses, beam splitters, multiple axis optical relays, and additional shutter devices. Each camera mechanism and its associated optical relays, shutters, and lenses can be individually controlled and adjusted to allow an operator a broad range of photographic settings to achieve a smooth, continuous, natural motion moving image recording.

Claims

1. A multiplexed motion picture camera, comprising:

a common objective lens facing a scene to be photographed and forming an image bearing scene light beam;

a beam splitter for receiving the scene light beam from the objective lens, dividing the scene light beam into at least two secondary scene light beams, and directing the secondary scene light beams to at least two respective image planes;

a first scene light capture means arranged in a first of the at least two respective image planes to capture at least a first aspect of the scene;

a second scene light capture means arranged in a second of the at least two respective image planes to capture at least a second aspect of the scene; and

a control means for separately adjusting a frame rate of the first scene light capture means and a frame rate of the second scene light capture means, and for independently adjusting when a first exposure cycle of the first scene light capture means occurs relative to when a second exposure cycle of the second scene light capture means occurs, such that the first and second exposure cycles may occur at the same time or at offset times.

2. The multiplexed motion picture camera of claim 1, further comprising at least one optical relay disposed between the objective lens and at least one of the at least two image planes.

3. The multiplexed motion picture camera of claim 2, wherein the optical relay comprises a field lens disposed between the objective lens and the beam splitter and a relay lens disposed between the beam splitter and at least one of the at least two image planes.

4. The multiplexed motion picture camera of claim 1, further comprising a second beam splitter disposed between the beam splitter and one of the image planes to receive and divide one of the at least two secondary scene light beams into at least two tertiary scene light beams, the second beam splitter directing the tertiary scene light beams to a second set of at least two respective image planes.

5. The multiplexed motion picture camera of claim 3, wherein the position of the relay lens defines a focal plane for one of the secondary scene light beams in the first scene light capture means which is different from a focal plane of another of the secondary scene light beams in the second scene light capture means, such that each of the at least two image planes has a different focus setting.

6. The multiplexed motion picture camera of claim 3, wherein the relay lens is movable, such that its position is adjustable.

7. The multiplexed motion picture camera of claim 1, further comprising at least one shutter disposed between the beam splitter and the first or second scene light capture means.

8. The multiplexed motion picture camera of claim 1, wherein the scene light capture means are selected from a group of image recording devices consisting of black and white or color photographic film camera mechanisms, electronic imaging camera mechanisms and camera mechanisms capable of recording a motion picture sequence on film or capturing a motion picture sequence capable of being recorded on an electronic format.

9. The multiplexed motion picture camera of claim 8, wherein the first and second scene light capture means are photographic film camera mechanisms each having a shutter and an intermittent film advance mechanism.

10. The multiplexed motion picture camera of claim 9, wherein the control means advances film in the first scene light capture means at a speed greater than the second scene light capture means.

11. The multiplexed motion picture camera of claim 9, wherein the control means comprises a motor connected to each of the scene light capture means through a power train arranged to provide mechanical motion to the shutter and film advance mechanism in each of said scene light capture means, the arrangement of the power train determining when the first exposure cycle occurs relative to when the second exposure cycle occurs.

12. The multiplexed motion picture camera of claim 9, wherein the control means comprises a separate motor connected to each of the scene light capture means, and an electronic means for separately controlling the speed and timing of the motor associated with each of the scene light capture means, such that each of the scene light capture means is separately adjustable.

37. The multiplexed motion picture camera of claim 4, further comprising a third beam splitter disposed between the beam splitter and a second of the image planes to receive and divide a second of the at least two secondary light beams into a second set of at least two tertiary scene light beams, the third beam splitter directing the second set of tertiary scene light beams to a third set of at least two respective image planes.

38. The multiplexed motion picture camera of claim 37, further comprising a third scene light capture means arranged in a second of the at least two respective tertiary image planes and a fourth scene light capture means arranged in a second of the second set of image planes.

39. The multiplexed motion picture camera of claim 38, wherein the control means separately adjusts a frame rate of each of the scene light capture means and independently adjusts the timing of when an exposure cycle of each of the scene light capture means occurs relative to each other.

40. The multiplexed motion picture camera of claim 38, further comprising at least one optical relay disposed between the objective lens and at least one of the at least two image planes.

41. The multiplexed motion picture camera of claim 40, wherein the optical relay comprises a field lens disposed between the objective lens and the beam splitter and at least one relay lens disposed between either the second or third beam splitter and one of the tertiary image planes.

42. The multiplexed motion picture camera of claim 41, wherein the relay lens is adjustably positioned along the tertiary scene light beams to provide a different focus setting in each of the tertiary image planes.

43. The multiplexed motion picture camera of claim 38, further comprising a multiple axis optical relay, the optical relay comprising a field lens disposed between the objective lens and the beam splitter and at least one relay lens movably disposed between either the second or third beam splitter and one of the tertiary image planes, such that its position along the tertiary scene light beams is adjustable to provide a different focus setting in each of the tertiary image planes.

44. The multiplexed motion picture camera of claim 43, wherein a first and second of the relay lenses are disposed respectively between the second beam splitter and the second set of at least two respective tertiary image planes.

45. The multiplexed motion picture camera of claim 44, wherein a third and fourth of the relay lenses are disposed respectively between the third beam splitter and the third set of at least two respective tertiary image planes.

46. The multiplexed motion picture camera of claim 43, further comprising at least one shutter disposed between either the second or third beam splitter and one of the tertiary image planes.

47. The multiplexed motion picture camera of claim 46, wherein first and second shutters are disposed respectively between the second beam splitter and the at least two respective tertiary image planes, and third and fourth shutters are disposed respectively between the third beam splitter and the second set of at least two respective tertiary image planes.

48. The multiplexed motion picture camera of claim 46, wherein the control means separately controls the operation of each of the at least one shutters and each of the scene light capture means.

49. The multiplexed motion picture camera of claim 38, wherein the scene light capture means are photographic film camera mechanisms each having a shutter and an intermittent film advance mechanism.

50. The multiplexed motion picture camera of claim 49, wherein the control means comprises a motor connected to each of the scene light capture means through a power train arranged to provide mechanical motion to the shutter and film advance mechanism in each of the scene light capture means, the arrangement of the power train determining when the exposure cycle of each of the scene light capture means occurs relative to each other.

51. The multiplexed motion picture camera of claim 49, wherein the control means comprises a separate motor connected to each of the scene light capture means, and an electronic means for separately controlling the speed and timing of the motor associated with each of scene light capture means, such that each of the scene light capture means is separately adjustable.

52. The multiplexed motion picture camera of claim 7, wherein the shutter is arranged to block at least one of the secondary scene light beams for a period of time substantially equal to or greater than the duration of an electronic flash burst.

53. The multiplexed motion picture camera of claim 7, wherein the shutter is arranged to admit at least one of the secondary scene light beams for a period of time substantially equal to or greater than the duration of an electronic flash burst.

54. The multiplexed motion picture camera of claim 7, wherein the shutter is arranged to block at least one of the secondary scene light beams for a period of time substantially equal to or less than {fraction (1/1,000)}^th of a second.

55. The multiplexed motion picture camera of claim 7, wherein the shutter is arranged to admit at least one of the secondary scene light beams for a period of time substantially equal to or less than {fraction (1/1,000)}^th of a second.

13. A multiple image device for use with an objective lens and a plurality of camera mechanisms, each of said camera mechanisms having a lens mounting port and at least one image detecting plane, said device comprising:

a lens mounting port for mounting said objective lens;

a primary beam splitter for receiving a scene light beam from said objective lens and dividing said scene light beam into at least two secondary scene light beams;

a plurality of lens mount fittings for connecting said camera mechanisms to the device such that said objective lens forms an image in the image detecting plane of each of the camera mechanisms, said lens mount fittings being engageable with the lens mounting port on the camera mechanisms; and

a control means for separately adjusting a frame rate of a first of the camera mechanisms and a frame rate of a second of the camera mechanisms, and for independently adjusting when a first exposure cycle of the first of the camera mechanisms occurs relative to when a second exposure cycle of the second camera mechanisms occurs, such that the first and second exposure cycles may occur at the same time or at offset times.

14. The multiple image device according to claim 13, further comprising a second beam splitter disposed to receive and divide one of the at least two secondary scene light beams into at least two tertiary scene light beams.

15. The multiple image device according to claim 13, further comprising at least one optical relay disposed between the lens mounting port and the lens mount fittings.

16. The multiple image device according to claim 15, wherein the optical relay comprises a field lens disposed between the lens mounting port and the primary beam splitter and a relay lens disposed between the primary beam splitter and at least one of the lens mount fittings.

17. The multiple image device according to claim 16, wherein the relay lens is movable such that its position is adjustable.

18. The multiple image device according to claim 13, further comprising a common support for said plurality of camera mechanisms and said multiple image device, said camera mechanisms being adjustably and removably connected to the support.

19. The multiple image device according to claim 18, wherein the common support comprises a rigid plate.

20. The multiple image device of claim 13, further comprising at least one shutter disposed between the primary beam splitter and the at least one image detecting plane, wherein the shutter defines an exposure time for the at least one image detecting plane that is different from an exposure time defined by a camera shutter incorporated into the camera mechanisms.

21. The multiple image device of claim 13, wherein the camera mechanisms are selected from a group of image recording devices consisting of black and white or color photographic film camera mechanisms, electronic imaging camera mechanisms and camera mechanisms capable of recording a motion picture sequence on film or capturing a motion picture sequence capable of being recorded on an electronic format.

22. The multiple image device of claim 13, wherein the camera mechanisms are photographic film camera mechanisms each having a shutter and an intermittent film advance mechanism.

23. The multiple image device of claim 22, wherein the control means advances film in a first of the camera mechanisms at a speed greater than a second of the camera mechanisms.

24. The multiple image device of claim 22, wherein the control means comprises a motor connected to each of the camera mechanisms through a power train arranged to provide mechanical motion to the shutter and film advance mechanism in each of said camera mechanisms, the arrangement of the power train determining when the first exposure cycle occurs relative to when the second exposure cycle occurs.

25. The multiple image device of claim 22, wherein the control means comprises a separate motor connected to each of the camera mechanisms, and an electronic means for separately controlling the speed and timing of the motor associated with each of the camera mechanisms, such that each of the camera mechanisms is separately adjustable.

56. The multiple image device according to claim 13, further comprising a light blocking enclosure encompassing the beam splitter and connected to the lens mounting port and the plurality of lens mount fittings such that substantially all light is excluded when the device is in use with the exception of said scene light beam.

57. The multiple image device of claim 20, wherein the shutter is arranged to block at least one of the secondary scene light beams for a period of time substantially equal to or greater than the duration of an electronic flash burst.

58. The multiple image device of claim 20, wherein the shutter is arranged to admit at least one of the secondary scene light beams for a period of time substantially equal to or greater than the duration of an electronic flash burst.

59. The multiple image device of claim 20, wherein the shutter is arranged to block at least one of the secondary scene light beams for a period of time substantially equal to or less than {fraction (1/1,000)}^th of a second.

60. The multiple image device of claim 20, wherein the shutter is arranged to admit at least one of the secondary scene light beams for a period of time substantially equal to or less than {fraction (1/1,000)}^th of a second.

26. A method for recording a plurality of image sequences from a primary image originally formed by a common objective lens, the method comprising the steps of:

dividing the primary image into at least two secondary image-bearing scene light beams;

adjusting a first scene light capture means to capture a first of the secondary scene light beams at a first frame rate and a first exposure cycle;

adjusting a second scene light capture means to capture a second of the secondary scene light beams at a second frame rate and a second exposure cycle;

exposing the first scene light capture means to the first of the secondary scene light beams to form a first image sequence; and

exposing the second scene light capture means to the second of the secondary scene light beams to form a second image sequence,

such that the first and second scene light capture means may be exposed to the first and second secondary scene light beams at the same time or at offset times.

27. The method according to claim 26, wherein the first frame rate and the second frame rate are selectably adjusted to be the same.

28. The method according to claim 26, wherein the first frame rate and the second frame rate are selectably adjusted to be different.

29. The method according to claim 26, wherein the first exposure cycle and the second exposure cycle are selectably adjusted to be the same, such that the first image sequence and the second image sequence reflect the same sequence of real time intervals.

30. The method according to claim 26, wherein the first exposure cycle and the second exposure cycle are selectably adjusted to be different, such that the first image sequence and the second image sequence reflect different sequences of real time intervals.

31. The method according to claim 30, wherein the sequences of real time intervals are or include a sequence of overlapping intervals.

32. The method according to claim 26, further comprising selectably adjusting the focal characteristics of the first or second secondary scene light beams before exposure to the scene light capture means, such that the first image sequence and the second image sequence reflect different focus settings.

33. The method according to claim 26, further comprising coordinating the timing of a series of flash lighting bursts with operation of the first scene light capture means.

34. The method according to claim 33, further comprising blocking the second scene light capture means for an interval which coincides with each of the flash lighting bursts.

35. The method according to claim 34, wherein the duration of said blocking is substantially equal to or greater than the duration of the flash bursts.

36. The method according to claim 26, further comprising selectably adjusting the intensity of the first secondary image to be different than the intensity of the second secondary image.

61. The method according to claim 31, wherein the overlapping intervals are continuous.

62. The method according to claim 26, further comprising the steps of:

reforming the primary image formed by the objective lens with a field lens into an image-bearing scene light beam; and

reforming the secondary image-bearing scene light beams with a relay lens into a first secondary image and a second secondary image.

63. The method according to claim 32, wherein the focal characteristics are adjusted by adjusting the position of a relay lens.

64. The method according to claim 34, wherein the interval minimizes admission of the second of the scene light beams during each of the flash lighting bursts and maximizes admission of the second of the scene light beams at other times.

65. The method according to claim 33, wherein at least one of the series of flash lighting bursts is synchronized to occur during formation of each image in the first image sequence.

66. The method according to claim 33, further comprising admitting the first scene light beam into the first scene light capture means for an interval which maximizes the admission of the first scene light beam during each of the flash lighting bursts and minimizes the admission of the first scene light beam at other times.

67. The method according to claim 26, wherein the first exposure cycle and the second exposure cycle are a minimum of 24 frames per second.

68. The method according to claim 26, wherein the first frame rate and second frame rate are the same, the first exposure cycle occurs at the same time as the second exposure cycle, and further comprising the step of blocking the second scene light capture means for an interval which coincides with a series of flash lighting bursts, and admitting the flash lighting bursts into the first scene light capture means during the interval.