Equipment for use with hand held motion picture cameras

• US 4,017,168 A
• Filed: 09/16/1974
• Issued: 04/12/1977
• Est. Priority Date: 09/16/1974
• Status: Expired

• Current Assignee: Garrett W. Brown
• Original Assignee: Garrett W. Brown
• Inventors: Brown, Garrett W.
• Primary Examiner(s): Hayes, Monroe H.
• Application Number:
  US05/506,326
• Time in Patent Office: 939 Days
• Field of Search: 352/243, 352/171, 354/81, 354/82, 248/11, 248/123, 248/162, 248/183, 350/96 B, 354/70, 354/74
• US Class Current: 352/243
• CPC Class Codes: E05Y 2900/402 for cantilever gates
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 11/2014 around a vertical axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 11/2092 comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage
• CPC Class Codes: F16M 11/24 changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each otherF16M11/42 takes precedence
• CPC Class Codes: F16M 13/00 Other supports for positioning apparatus or articles heads thereof F16M11/02 ; undercarriages thereof F16M11/20 ; adapted to be stuck in the ground A45F3/44 ; sockets or holders for poles or posts E04H12/22; Means for steadying hand-held apparatus or articles supports for measuring instruments G01D11/30; supports for casings of remote control switching devices H01H9/025
• CPC Class Codes: F16M 13/04 for supporting on, or holding steady relative to, a person, e.g. by chains , e.g. rifle butt or pistol grip supports, supports attached to the chest or head apparatus or arrangements for taking photographs or for projecting or viewing them G03B
• CPC Class Codes: F16M 2200/044 for balancing rotational movement of the undercarriage
• CPC Class Codes: F16M 2200/045 for panning movement
• CPC Class Codes: F16M 2200/063 Parallelogram arms
• CPC Class Codes: G03B 13/00 Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
• CPC Class Codes: G03B 17/561 Support related camera accessories

Abstract

Equipment for use with hand-held motion picture and video cameras comprises a pair of interconnected spring loaded arms, one end of which is pivotally supported by a carrying brace worn by a cameraman and the other end of which is connected to a handle positioned to mount the camera equipment at approximately the center of the moment of inertia. The camera and its associated equipment are mounted in exploded, balanced relation about the handle. The weight of the camera equipment is substantially counterbalanced by the action of the spring loaded arms without employing counterweights. A camera viewer is provided, to facilitate viewing from a position remote from the camera itself and not necessarily governed by the camera orientation.

Claims

1. A portable camera equipment system especially adapted for operation by a cameraman in motion and capable of being hand-guided, the system being of improved stability against angular deviations in pan, tilt and roll, and substantially free-floating in a manner to isolate the equipment also from unwanted lateral and vertical movement caused by the motion of the cameraman using the equipment which comprises;

camera equipment components positioned in an expanded balanced arrangement at points remote from each other and about a handle means for guiding the camera equipment which means is positioned at or approximately at the center of gravity and at or approximately at the center of the moment of inertia of the mass of the components comprising the expanded camera equipment;

camera equipment support means adapted to support at least part of the weight of the camera equipment which means is adapted to be pivotally and rotatably connected to the cameraman and is connected to the camera equipment, said means substantially freeing the cameraman'"'"'s hands from the weight of the camera equipment, isolating and free-floating the camera equipment at a distance from the cameraman substantially independently of any of his unwanted lateral and vertical motions and capable of being guided to a position in space in a range of positions selected by the cameraman;

pivotable and rotatable means interconnecting the camera equipment with the support means to permit rotatable and pivotal movement of the camera equipment relative to the support means and which thereby virtually does not transmit deviations in the pan, tilt and roll axes from the cameraman to the camera equipment; and

view finding means adapted to indicate the field of view of the camera to the cameraman without the need for his eye to be in direct contact with the camera.

2. The camera equipment system of claim 1 wherein the camera support means comprises connecting link means at the end closest the cameraman for rotatable movement of the support means relative the cameraman.

3. The camera equipment system of claim 2 wherein the link means comprises means to urge the end of the link farthest from the cameraman in an arc away from the center of the cameraman'"'"'s chest.

4. The camera equipment system of claim 2 wherein the connecting link means comprises a spring, said spring continuously biasing the connecting link means in an arc away from the center of the cameraman'"'"'s chest.

5. The camera equipment system of claim 2 wherein the connecting link means comprises a second means for second rotatable movement of the support arms relative the cameraman.

6. The camera equipment system of claim 1 which comprises a brace adapted to be worn by the cameraman.

7. The camera equipment system of claim 6 wherein the connecting link means is connected to the brace.

8. The camera equipment system of claim 6 wherein the support means is adapted to be connected to the brace.

9. The camera equipment system of claim 1 wherein the remotely spaced components comprise at least two components.

10. The camera equipment system of claim 9 wherein the view finding means comprises a video monitor.

11. The camera equipment system of claim 10 wherein the video monitor is remotely positioned from the camera.

12. The camera equipment system of claim 11 wherein the camera image is obtained by a TV camera tube and transmitted to the monitor.

13. The camera equipment system of claim 1 wherein one of the components is configured to be inertially stable about at least two axes.

14. The camera equipment system of claim 1 wherein the remotely spaced components comprise a camera with its film magazine, and another component.

15. The camera equipment system of claim 1 wherein one of the components is the view finding means.

16. The camera equipment system of claim 15 wherein the other component is a camera body.

17. The camera equipment system of claim 16 which comprises another component positioned in a balanced arrangement with the other said two components.

18. The camera equipment system of claim 17 wherein the components are positioned in a triangular arrangement, thereby increasing the system'"'"'s moment of rotational inertia in three axes.

19. The camera equipment system of claim 15 wherein at least part of the view finding means is positioned below the handle means.

20. The camera equipment system of claim 1 wherein the remotely spaced components comprise at least three components.

21. The camera equipment system of claim 20 wherein the remotely spaced components comprise a camera body, a battery, and a film magazine.

22. The camera equipment system of claim 21 wherein the components are positioned in a vertical or substantially vertical plane, thereby causing a significant moment of inertia in the roll axis.

23. The camera equipment system of claim 20 wherein the film magazine extends rearwardly from the camera.

24. The camera equipment system of claim 23 wherein the film magazine and camera are spaced remote from each other and connected by a magazine extension throat.

25. The camera equipment system of claim 20 wherein all the components are positioned substantially in a vertical plane, thereby causing a significant moment of inertia in the roll axis.

26. The camera equipment system of claim 20 wherein two components are positioned above and two below the handle means.

27. The camera equipment system of claim 1 wherein at least one component is positioned above and one below the handle means, thereby causing a significant moment of inertia in the roll axis.

28. The camera equipment system of claim 1 wherein the components are positioned in a vertical or substantially vertical plane, thereby causing a significant moment of inertia in the roll axis.

29. The camera equipment system of claim 1 wherein the support means comprise means which counteract the force of gravity against the camera equipment, thus counterbalancing the pull downward of the weight of the camera equipment component.

30. The camera equipment system of claim 29 wherein the support means comprise a pair of arm-like supports.

31. The camera equipment system of claim 30 wherein the arm-like supports are interconnected.

32. The camera equipment system of claim 31 wherein the support arms comprise an upper and lower link, which form the legs of a parallelogram arrangement.

33. The camera equipment system of claim 31 wherein the first supporting arm comprises a spring means, said spring means continuously biasing the end of the first arm that is remote from the cameraman upwardly relative to the cameraman, the bias of the spring means being substantially balanced by the weight of the component to cause the component to free float irrespective the movement of the cameraman.

34. The camera equipment system of claim 31 wherein the second supporting arm comprises a spring means, said spring means continuously biasing the end of the second arm which is remote from the cameraman upwardly relative to the cameraman, the bias counteracting the weight of the components of the system.

35. The camera equipment system of claim 31 which comprises a first and second spring means biasing the first and second arms respectively, relative to the cameraman, whereby the weight of the components of the system is counteracted by the bias of the spring means.

36. The camera equipment system of claim 35 wherein the second spring means are of greater strength than the first spring means, thereby imposing increased forces on the first spring means.

37. The camera equipment system of claim 35 wherein the first and second spring means are adapted to pivot the first and second arms about any of their respective pivots in the same direction relative to the cameraman.

38. The camera equipment system of claim 37 wherein at least one of the springs attaches to a support arm in a location offset from both its upper link and its lower link.

39. The camera equipment system of claim 31 wherein the pair of arms comprise a forward and a rearward support arm, said forward and rearward arms being in longitudinal juxtaposed relationship.

40. The camera equipment system of claim 31 wherein the support means are connected at a medial block.

41. The camera equipment system of claim 31 wherein the support means are pivotably connected.

42. The camera equipment system of claim 30 wherein one of the arm-like supports comprises a plurality of substantially frictionless pivots, whereby the arm-like supports may be moved pivotally relative to the cameraman and the pivots do not contribute to counteract the weight of the camera equipment.

43. The camera equipment system of claim 30 wherein the second arm-like support comprises a plurality of substantially frictionless pivots, whereby both arms may be moved pivotally relative to the cameraman and the pivots do not contribute to counteract the weight of the camera equipment.

44. The camera equipment system of claim 1 wherein the support means comprises integral tension means to counterbalance the weight of the camera equipment component.

45. The camera equipment system of claim 1 wherein the support means comprise spring means.

46. The camera equipment system of claim 45 wherein the supports comprise a plurality of substantially frictionless pivots.

47. The camera equipment system of claim 1 wherein the support means comprise resilient means.

48. The camera equipment system of claim 1 wherein the support means comprise a pair of arm-like supports means to counteract the force of gravity against the camera equipment, connecting means connecting the arm-like supports to allow for movement relative to each other.

49. The camera equipment system for claim 1 wherein the support means are capable of horizontal rotatable movement respective the cameraman.

50. The camera equipment system of claim 1 wherein the weight of the camera equipment which is transmitted to the pivotable and rotatable means is counterbalanced in a vertical direction by the support means without lateral resistance to movement.

51. The camera equipment system of claim 1 wherein the camera equipment comprises means to indicate the angular orientation of the camera in the roll axis.

52. The camera equipment system of claim 51 wherein the camera equipment which comprises means to indicate the angular orientation is visible simultaneously with the view finding means.

53. The camera equipment system according to claim 51 wherein the means to indicate the angular orientation comprises a level indicating device.

54. The camera equipment system of claim 1 wherein the view finding means is a fiber optic bundle adapted to transmit an image from the camera to an eye of the cameraman.

55. The camera equipment system of claim 1 wherein the view finding means comprises means to electronically generate an image on a screen.

56. The camera equipment system of claim 1 wherein the camera is removably affixed to the pivotable and rotatable means.

57. The camera equipment system of claim 1 wherein the pivotable means comprises a gimbal.

58. The camera equipment system of claim 57 in which the pivotal means comprises a gimbal yoke.

59. The camera equipment system of claim 57 in which the rotatable means comprises a bearing mounted within the gimbal.

60. The camera equipment system of claim 1 wherein the pivotable and rotatable means comprise a ball joint.

61. A camera equipment system especially adapted for operation by a cameraman in motion and capable of being hand-guided, the system being of improved stability against angular deviations in pan, tilt and roll, and substantially free-floating in a manner to isolate the equipment also from unwanted lateral and vertial movement caused by the motion of the cameraman using the equipment which comprises

camera equipment components positioned in an expanded balanced arrangement at points remote from each other and balanced about the center of gravity and the center of the moment of inertial of the mass of the components comprising the expanded camera equipment;

camera equipment support means adapted to support at least part of the weight of the camera equipment which means is adapted to be pivotably and rotatably connected to the cameraman and connected to the camera equipment, said means substantially freeing the cameraman'"'"'s hands from the weight of the camera equipment, isolating and free-floating the camera equipment at a distance from the cameraman substantially independently of any of his unwanted lateral and vertical motions and capable of being guided to a position in space in a range of positions selected by the cameraman;

the camera equipment being adapted to be guided from a position which is located at or approximately at the center of gravity and at or approximately at the center of the moment of inertial of the mass of the components comprising the expanded camera equipment;

pivotable and rotatable means interconnecting the camera equipment with the support means to permit rotatable and pivotable movement of the camera equipment relative to the support means and which thereby virtually does not transmit deviations in the pan, tilt and roll axes from the cameraman to the camera equipment; and

view finding means adapted to indicate the field of view of the camera to the cameraman without the need for his eye to be in direct contact with the camera.

62. The camera equipment system of claim 61 wherein the components are adapted to be rigidly connected.

63. The camera equipment system of claim 61 wherein the support means supports essentially all the weight of the camera equipment.

64. The camera equipment system of claim 61 wherein the support means supports the weight of the camera equipment without the assistance of a counterweight.

65. The camera equipment system of claim 61 wherein the support means comprises means which is expandable and compressible.

66. The camera equipment system of claim 61 wherein the pivotable and rotatable means connecting the camera equipment with the support means is positioned above and in close proximity to the position from which the camera equipment is being guided.

67. The camera equipment system of claim 61 wherein the pivotable and rotatable means is positioned at the center of gravity.

68. The camera equipment system of claim 61 in which the image display device and lens of the camera equipment are not in parallel alignment.

69. The camera equipment system of claim 61 which comprises components which are adapted to be positioned in a same vertical plane.