Remote viewing apparatus

• US 4,937,675 A
• Filed: 03/18/1988
• Issued: 06/26/1990
• Est. Priority Date: 03/18/1988
• Status: Expired due to Fees

• Current Assignee: Westinghouse Electric Corporation (Paramount Global (f/k/a ViacomCBS Inc.))
• Original Assignee: Westinghouse Electric Corporation (Paramount Global (f/k/a ViacomCBS Inc.))
• Inventors: Anderson, Johnny J., Trosiek, John Jr., Saul, Richard E., Starceski, John D., Moore, Charles C.
• Primary Examiner(s): Peng, John K.
• Application Number:
  US07/169,928
• Time in Patent Office: 830 Days
• Field of Search: 358/108, 358/229, 358/210, 358/227, 358/194.1, 354/288, 354/293, 354/195.11, 354/400, 352/242, 352/243
• US Class Current: 348/373
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 11/18 with mechanism for moving the apparatus relatively to the stand
• CPC Class Codes: F16M 11/2014 around a vertical axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 13/02 for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
• CPC Class Codes: H04N 23/50 Constructional details
• CPC Class Codes: H04N 23/695 Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Abstract

A pan and tilt apparatus for supporting a miniature television camera and an adjustable lens is disclosed. A lens support is hinged to the pan and tilt apparatus for rotation about an axis parallel to the central axis of the lens. The camera is supported by the lens when attached thereto. Parallel mounted drive trains in a drive housing operate the pan and tilt functions and endless slippable drives in the lens support are operative for providing powered lens adjustments.

Claims

1. A remotely operable optical viewing apparatus, including a lens having rotatable adjustments, a camera attachable to the lens, and means for directionally supporting and optically adjusting the camera and lens for remote viewing said supporting and adjusting means comprising:

a drive housing;

a tilt platform mounted to the drive housing for rotation about a tilt axis, said tilt platform being tiltable about the tilt axis through a first angle of at least 90 degrees;

a pan base mounted to the drive housing for rotation about a pan axis perpendicular to the tilt axis, said pan base being rotatable relative to the drive housing about the pan axis through a second angle of at least 350 degrees;

a plurality of housing drives mounted in the drive housing, including a tilt drive means coupled to the tilt platform for driving the tilt platform through said first angle and a pan drive means coupled to the pan base for driving said pan base through said second angle; and

a lens support for supporting the lens therein, said lens support being hinged to the tilt platform for rotation of the lens and the camera when attached thereto into and out of an operating position about an axis parallel to the central axis of the lens, said lens support including at least one endless slippable drive coupled to each lens adjustment for rotatably driving the lens adjustment between extreme positions and slipping at said extreme positions so as not to overdrive and damage the lens adjustments.

2. The apparatus of claim 1 wherein the tilt drive comprises:

a tilt motor mounted parallel to the tilt axis and a tilt gear train driven by said tilt motor mounted parallel to the tilt axis;

a tilt drive shaft driven by the tilt gear train mounted in the housing and extending through apertures therein into engagement with the tilt platform; and

an internal tilt angle limiter responsively coupled to the tilt drive shaft for deenergizing the tilt motor at extreme ends of the tilt platform rotation.

3. The apparatus of claim 2 wherein the tilt drive shaft includes slotted end portions, and the tilt platform includes mating portions keyed to the slotted portions of the tilt drive shaft.

4. The apparatus of claim 1 wherein the pan drive comprises:

a DC pan motor mounted parallel to the tilt axis and a pan gear train including a driving worm gear mounted parallel to the tilt axis;

a pan drive shaft secured to the pan base perpendicular to the tilt axis and a driven worm drive gear mounted on the pan drive shaft engaging the driving worm gear; and

an internal pan angle limiter responsively coupled to the pan drive shaft for deenergizing the pan motor at extreme ends of the pan rotation.

5. The apparatus of claim 1 wherein the lens has multiple adjustments including zoom, focus and aperture relatively movable about a central axis of the lens, and the slippable drive includes a motor mounted parallel to the lens for each adjustment, each motor having a drive end and a pulley located axially adjacent the corresponding adjustment, and an O-ring drive belt for engaging the pulley and the corresponding adjustment for driving the adjustment between extreme positions, the pulley allowing the O-ring belt to slip relative to the adjustment for preventing damage to the lens adjustments.

6. The apparatus of claim 5 wherein the lens support includes:

a plurality of spaced parallel apertured walls aligned with the central axis of the lens for receiving the lens therein, and

a plurality of axially aligned pairs of apertures offset from the central axis of the lens for receiving the respective lens drive motors, at least one of each pair of apertures having a radially threaded opening therein and a locking screw threaded into the threaded opening for securing the motor therein.

7. The apparatus of claim 1 further including an adapter plate comprising:

a tilt platform engaging portion and an upstanding hinge portion, the hinge portion including a pair of tabs, one of said tabs having an aperture therein and the other tab having a slot therein, a hinge pin engaging the aperture and the lens support for supporting the lens support for rotation relative to the adapter plate, and a threaded locking pin engaging the lens support remotely from the hinge pin for engaging a slot and allowing the lens support to move into and out of the slot and locking the lens support therein by threading the locking pin.

8. The apparatus of claim 1 further comprising:

a cam lock adapted to engage the pan base, said cam lock including an inflatable bladder lock extending therefrom and an adjustable alignment pin in parallel relationship with the inflatable bladder lock being in adjustable spaced relation therewith; and

means for locking the adjustable alignment pin in position with respect to the inflatable bladder lock at a desired distance therebetween.

9. The apparatus of claim 8, wherein the inflatable bladder lock is adapted to be located in a tube and said bladder lock has a central opening therein and further comprising a bladder secured thereto in flow communication with the central opening, and an air valve coupled to a source of air in flow communication with the central aperture for regulating the flow of air to the bladder, the bladder expanding upon introduction of air for engagement with the tube for securing the cam lock in position.

10. A remotely operable optical viewing apparatus, including a lens having rotatable adjustments, a camera attachable to the lens and means for directionally supporting and optically adjusting the camera and lens for remote viewing said supporting and adjusting means comprising:

a drive housing;

a tilt platform mounted to the drive housing for rotation about a tilt axis, said tilt platform being tiltable about the tilt axis through a first angle of at least 90 degrees;

a pan base mounted to the drive housing for rotation about a pan axis perpendicular to the tilt axis, said pan base being rotatable relative to the drive housing about the pan axis through a second angle of at least 350 degrees;

a plurality of housing drives mounted in the drive housing, including a tilt drive means coupled to the tilt platform for driving the tilt platform through said first angle including a tilt motor mounted parallel to the tilt axis, a tilt gear train driven by said tilt motor mounted parallel to the tilt axis and a tilt drive shaft driven by the tilt gear train mounted in the housing, said tilt drive shaft having slotted end portions extending through apertures in the housing for engagement with corresponding mating portions of the tilt platform keyed to the slotted portions of the tilt drive shaft, and an internal tilt angle limiter responsively coupled to the tilt drive shaft for deenergizing the tilt motor at extreme ends of the tilt platform rotation through said angle and a pan drive means coupled to the pan base for driving said pan base through said second angle; and

a lens support for supporting the lens therein, said lens support being hinged to the tilt platform for rotation of the lens and the camera when attached thereto into and out of an operating position about an axis parallel to the central axis of the lens and camera, said lens support including at least one endless slippable drive coupled to each lens adjustment for rotatably driving the lens adjustment between extreme positions and slipping at said extreme positions so as not to overdrive and damage the lens adjustments.

11. A remotely operable support for a lens having rotatable adjustments and a camera attachable thereto comprising:

a drive housing;

a tilt platform mounted to the drive housing for rotation about a tilt axis, said tilt platform being tiltable about the tilt axis through a first angle;

a pan base mounted to the drive housing for rotation about a pan axis perpendicular to the tilt axis, said pan base being rotatable relative to the drive housing about the pan axis through a second angle;

P1 a plurality of housing drives mounted in the drive housing, including a tilt drive means coupled to the tilt platform for driving the tilt platform through said first angle and a pan drive means coupled to the pan base for driving said pan base through said second angle; and

a lens support for supporting the lens therein, said lens support being hinged to the tilt platform for rotation of the lens and the camera when attached thereto into and out of an operating position about an axis parallel to the central axis of the lens, said lens support including at least one endless slippable drive coupled to each lens adjustment for rotatably driving the lens adjustment between extreme positions and slipping at said extreme positions so as not to overdrive and damage the lens adjustments.

12. The apparatus of claim 11 wherein the tilt drive comprises:

a tilt motor mounted parallel to the tilt axis and a tilt gear train driven by said tilt motor mounted parallel to the tilt axis;

a tilt drive shaft driven by the tilt gear train mounted in the housing and extending through apertures therein into engagement with the tilt platform; and

an internal tilt angle limiter responsively coupled to the tilt drive shaft for deenergizing the tilt motor at extreme ends of the tilt platform rotation.

13. The apparatus of claim 12 wherein the tilt drive shaft includes slotted end portions, and the tilt platform includes mating portions keyed to the slotted portions of the tilt drive shaft.

14. The apparatus of claim 11 wherein the pan drive comprises:

a DC pan motor mounted parallel to the tilt axis and a pan gear train including a driving worm gear mounted parallel to the tilt axis;

a pan drive shaft secured to the pan base perpendicular to the tilt axis and a driven worm drive gear mounted on the pan drive shaft engaging the driving worm gear; and

an internal pan angle limiter responsively coupled to the pan drive shaft for deenergizing the pan motor at extreme ends of the pan rotation.

15. The apparatus of claim 11 wherein the lens has multiple adjustments including zoom, focus and aperture relatively movable about a central axis of the lens, and the slippable drive includes a motor mounted parallel to the lens for each adjustment, each motor having a drive end and a pulley located axially adjacent the corresponding adjustment, and an O-ring drive belt for engaging the pulley and the corresponding adjustment for driving the adjustment between extreme positions, the pulley allowing the O-ring belt to slip relative to the adjustment for preventing damage to the lens adjustments.

16. The apparatus of claim 15 wherein the lens support includes:

a plurality of spaced parallel apertured walls aligned with the central axis of the lens for receiving the lens therein, and

a plurality of axially aligned pairs of apertures offset from the central axis of the lens for receiving the respective lens drive motors, at least one of each pair of apertures having a radially threaded opening therein and a locking screw threaded into the threaded opening for securing the motor therein.

17. The apparatus of claim 11 further including an adapter plate comprising:

a tilt platform engaging portion and an upstanding hinge portion, the hinge portion including a pair of tabs, one of said tabs having an aperture therein and the other tab having a slot therein, a hinge pin engaging the aperture and the lens support for supporting the lens support for rotation relative to the adapter plate, and a threaded locking pin engaging the lens support remotely from the hinge pin for engaging the slot and allowing the lens support to move into and out of the slot and locking the lens support therein by threading the locking pin.

18. The apparatus of claim 11 further comprising:

a cam lock adapted to engage the pan base, said cam lock including an inflatable bladder lock extending therefrom and an adjustable alignment pin in parallel relationship with the inflatable bladder lock being in adjustable spaced relation therewith; and

means for locking the adjustable alignment pin in position with respect to the inflatable bladder lock at a desired distance therebetween.

19. The apparatus of claim 11 wherein the inflatable bladder lock is adapted to be located in a tube and said bladder lock has a central opening therein and further comprising a bladder secured thereto in flow communication with the central opening, and an air valve coupled to a source of air in flow communication with the central aperture for regulating the flow of air to the bladder, the bladder expanding upon introduction of air for engagement with the tube for securing the cam lock in position.