Video camera for use with an endoscope and method for making same
Focusable video camera for use with endoscopes
Camera apparatus Patent #: 4713697
ApplicationNo. 07/199425 filed on 05/27/1988
US Classes:348/84, Pipeline348/345, Focus control348/363, Automatic control of iris, stop, or diaphragm348/373Support or housing
ExaminersPrimary: Ng, Jin F.
Assistant: Brinich, Stephen
Attorney, Agent or Firm
International ClassesH04N 5/232 (20060101)
H04N 7/18 (20060101)
H04N 5/225 (20060101)
AbstractAn elongated remotely controlled pan and tilt television camera, ideally suitable for inspecting pipeline interiors, is able to be constructed with extremely small transverse dimensions due to compact packaging of control mechanisms disposed in the camera front end inside an optical dome. An outer gimbal is rotatable (i.e., panned) relative to the camera front end and is in the form of a frame within which an inner gimbal is mounted to be rotatable (i.e., tilted) relative to the outer gimbal. A lens, a lens focus control motor and a tilt motor are all mounted on the inner gimbal so as to be movable therewith. The pan motor is positionally fixed in the camera housing and rotates the outer gimbal by means of a drive cable and pulley secured to the outer gimbal. A CCD detector is located remotely from its associated electronics circuitry on a CCD circuit board secured to the inner gimbal so that the detector is movable with the lens and receives an optical image therefrom. The electrical signals representing the image and produced by the detector are processed into appropriate video format by circuitry disposed in fixed position within the camera housing. The lens is an automatic iris lens having its iris control circuitry located remotely from the lens so that a small lens structure may be employed. The CCD board serves as a tie point for all wiring between gimbal-mounted components and positionally fixed components disposed in the camera housing.