Lens barrel apparatus for camera

1. An apparatus for a camera, comprising:

a lens barrel; and

a driving unit, wherein, in response to a signal, the driving unit rotates the lens barrel about an axis; and

a rotation-position sensing unit that generates rotation-position data for the lens barrel in response to the rotation of the lens barrel, the rotation-position sensing unit comprising:

encoders that generate analog signals in response to the rotation of the lens barrel;

an amplifier that amplifies the analog signals of the encoders; and

an analog-to-digital converter that converts the amplified analog signals into digital signals to generate rotation-position data.

2. The apparatus of claim 1 , wherein the lens barrel comprises a cylindrical internal barrel in which a zoom lens, a focus lens, and an optoelectric converter (OEC) are disposed.

3. The apparatus of claim 1 , wherein the lens barrel is generally eye-shaped.

4. The apparatus of claim 1 , wherein the signal is a vertical rotation control signal, the axis is a vertical axis of the camera and the driving unit rotates the lens barrel about a vertical axis of the camera in response to a vertical rotation control signal.

5. The apparatus of claim 1 , wherein the signal is a horizontal rotation control signal, the axis is a horizontal axis of the camera and the driving unit rotates the lens barrel about a horizontal axis of the camera in response to a horizontal rotation control signal.

6. The apparatus of claim 1 , further comprising a coordinate input unit that generates input coordinate data according to a user input, wherein the signal is at least partially based on the user input.

7. The apparatus of claim 1 , wherein the signal represents data regarding a vertical rotation control signal or a horizontal rotation control signal or both, further comprising:

a coordinate input unit that generates input coordinate data according to a user input; and

a controller that generates a vertical rotation control signal and a horizontal rotation control signal according to the input coordinate data from the coordinate input unit and the rotation-position data from the rotation-position sensing unit.

8. The apparatus of claim 1 , further comprising a memory that stores a movement trace and a movement velocity of the lens barrel wherein the movement trace and movement velocity are associated with at least one position of the lens barrel.

9. The apparatus of claim 1 , further comprising a joystick for receiving user input, wherein the signal is at least partially based on the user input to the joystick.

10. The apparatus of claim 1 , further comprising a coordinate input unit that comprises:

a joystick for generating a joystick analog signal in response to an action of a user; and

an interface for converting the joystick analog signal of the joystick into input coordinate data, wherein the signal is at least partially based on the user input to the joystick.

11. An apparatus for rotating a camera lens, the apparatus comprising:

a generally eye-shaped lens barrel;

a vertical driving unit that rotates the lens barrel about a vertical axis in response to a vertical rotation control signal;

a horizontal driving unit that rotates the lens barrel about a horizontal axis in response to a horizontal rotation control signal;

a rotation-position sensing unit that generates rotation-position data of the lens barrel in response to the rotation of the lens barrel, the rotation-position sensing unit comprising:

encoders that generate analog signals in response to the rotation of the lens barrel;

an amplifier that amplifies the analog signals of the encoders; and

an analog-to-digital converter that converts the amplified analog signals into digital signals to generate the rotation-position data;

a coordinate input unit that generates input coordinate data according to a manipulating action of a user; and

a controller that generates the vertical rotation control signal and the horizontal rotation control signal according to the input coordinate data from the coordinate input unit and the rotation-position data from the rotation-position sensing unit.

12. The apparatus of claim 11 , wherein the coordinate input unit comprises:

a joystick that generates a joystick analog signal in response to the manipulating action of the user; and

an interface that converts the joystick analog signal of the joystick into the input coordinate data.

13. The apparatus of claim 11 , wherein the vertical driving unit further comprises:

a vertical axis actuator that rotates the lens barrel about a vertical axis of the camera; and

an actuator driver that controls the movement of the vertical axis actuator in response to a vertical rotation control signal.

14. The apparatus of claim 11 , wherein the lens barrel comprises a cylindrical internal barrel in which a zoom lens, a focus lens, and an optoelectric converter (OEC) are disposed.

15. The apparatus of claim 11 , further comprising a memory that stores a movement trace and a movement velocity of the lens barrel wherein the movement trace and movement velocity are associated with at least one position of the lens barrel.

16. The apparatus of claim 11 , wherein the horizontal driving unit further comprises:

a horizontal axis actuator that rotates the lens barrel about the horizontal axis; and

an actuator driver that controls the movement of the horizontal axis actuator in response to the horizontal rotation control signal.

17. A method of rotating a camera lens, the method comprising:

generating digital rotation-position data of a lens barrel in response to the rotation of the lens barrel;

receiving user input from a joystick;

generating input coordinate data according to the user input;

generating a signal according to the input coordinate data and the rotation-position data; and

rotating the lens barrel about an axis in response to the signal.