| 摘要 |
A four directional projector is provided to adjust a focus of an image based on an input value of a user by using a focus sensor unit. Four directional projector includes a first projector(317), a second projector(319), a third projector(321), and a fourth projector(323). Each projector includes a light source and a lens(320). The lens enlarges an image on a screen by projecting light from the light source onto the screen. A motion sensor(301) traces the movement of an object and photographs the object by using a camera. The camera rotates in all directions to recognize the movement of the object. A focus sensor adjusts a focus. A signal receiver(305) receives a driving signal of the four directional projector and a cover opening/closing requesting signal from a user. |
