TV camera

• US 4,008,372 A
• Filed: 12/01/1975
• Issued: 02/15/1977
• Est. Priority Date: 11/29/1974
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Ueno, Atsushi, Sakai, Kiyoharu, Fujimoto, Showhey
• Primary Examiner(s): Safourek, Benedict V.
• Assistant Examiner(s): Coles, Edward L.
• Application Number:
  US05/636,423
• Time in Patent Office: 442 Days
• Field of Search: 178/7.8, 178/7.81, 178/7.91, 178/7.92, 178/7.1, 178/DIG. 1, 178/DIG. 38, 354/289, 354/293, 358/41
• US Class Current: 348/357
• CPC Class Codes: H04N 23/51 Housings

Abstract

A TV camera wherein both the lens and its control system are completely enclosed in a casing of the camera to protect them from dust, dirt and damage. Massive control knobs are secured on the side wall of the casing for controlling the focus and the zoom. The iris is cable driven by a linear control mounted on the side wall of the casing and the indication of the iris setting is provided on the rear control panel having a viewfinder. A self-balancing cradle mount supports the camera slightly above its center of gravity. Independent pan and tilt friction adjustments can lock the camera in any desired position. A pan and tilt handle is located at the rear of the control panel.

Claims

1. A TV camera comprising a casing surrounding a body of the TV camera, electrical and optical components enclosed in the casing, and support means for supporting the body of said TV camera and for providing the body with pan and tilt movements, said support means comprising a shaft provided through the body of the TV camera at a position slightly above its center of gravity and means for rotatably supporting said shaft.

2. A TV camera comprising a casing surrounding a body of the TV camera, electrical and optical components enclosed in the casing, and support means for supporting the body of the TV camera and for providing said body with pan and tilt movements, said support means comprising a pan and tilt cradle;

a shaft provided through the body of the TV camera at a position slightly above its center of gravity;

a first mounting means for mounting the body of the TV camera on said shaft; and

a second mounting means for rotatably mounting said shaft on the pan and tilt cradle, thereby providing the body of the TV camera with said tilt movement.

3. The TV camera of claim 2, which further comprises means for preventing the body of the TV camera from rotation with respect to said shaft.

4. The TV camera of claim 2, which further comprises tilt lock knobs secured on the side walls of the casing and associated with said shaft, whereby a tilt friction adjustment is achieved through said tilt lock knobs.

5. The TV camera of claim 2, which further comprises a pan head for rotatably supporting the pan and tilt cradle, thereby providing the body of the TV camera with the pan movement;

and a flange attached to the bottom plate of the pan and tilt cradle in order to reinforce the bottom portion of the pan and tilt cradle.

6. In a TV camera which comprises a casing surrounding the body of the TV camera, electrical and optical components enclosed in the casing, and support means for supporting the body of the TV camera and providing the body of the TV camera with pan and tilt movements, said support means including a pan and tilt cradle;

a shaft provided through the body of the TV camera at a position slightly above its center of gravity;

a first mounting means for mounting the body of the TV camera on said shaft; and

a second mounting means for rotatably mounting said shaft on the pan and tilt cradle, thereby providing the body of the TV camera with said tilt movement, the improvement which comprises;

a lens system containing a hood therefor, said lens system being completely enclosed in the casing;

a focus control ring disposed in the lens system;

a focus control knob secured on the side wall of the casing; and

a wiring means for connecting the control ring to the control knob, thereby rotating the control ring in response to the rotation of the control knob.

7. The TV camera of claim 6, wherein said wiring means comprises a cable, a portion of which is wound around the focus control ring;

and pulleys for straightening the cable led out from the wound portion in opposing orientations.

8. The TV camera of claim 6, which further comprises a spring means disposed in the wiring means for reducing the attraction force to rotate the control ring in a direction to release the lens system from its mounting portion, thereby preventing an erroneous disconnection of the lens system from its mounting portion.

9. In a TV camera which comprises a casing surrounding a body of the TV camera, electrical and optical components enclosed in the casing, and support means for supporting the body of the TV camera with pan and tilt movements, said support means including a pan and tilt cradle;

a shaft provided through the body of the TV camera at a position slightly above its center of gravity;

a first mounting means for mounting the body of the TV camera on said shaft; and

a second mounting means for rotatably mounting said shaft on the pan and tilt cradle, thereby providing the body of the TV camera with said tilt movement, the improvement which comprises;

a lens system containing a hood therefor, said lens system being completely enclosed in the casing;

an iris control ring disposed in the lens system;

an iris control lever secured on the side wall of the casing; and

a wiring means for connecting the control ring to the control lever, thereby rotating the control ring in response to the shift operation of the control lever.

10. The TV camera of claim 9, which further comprises an indication means associated with the wiring means for providing an indication of the iris setting.