KR20080075640A - Projector with four direction - Google Patents

Abstract

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.

Description

Projector with four direction}

1 is an exemplary view illustrating a configuration of a four-way projector according to the present invention.

Figure 2 (a, b) is a side view and a plan view of a four-way projector according to the present invention.

Figure 3 is a block diagram showing the internal configuration of the four-way projector of the present invention.

4 is an exemplary view showing operation recognition of a four-way projector according to an embodiment of the present invention.

Figure 5 (a ~ d) is an illustration of the direction using the sensor and the image output of the four-way projector according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

301. Motion sensor unit (camera) 303. Focus sensor unit

305. Signal receiver 307. External connection interface

309. Image processing unit 311. Control unit

313. Storage 315. Resonance

317. First Projector 319. Second Projector

321. 3rd projector 323. 4th projector

The present invention relates to a projector, and more particularly to a four-way projector.

A projector is a display device that enlarges and projects an image on a screen. Recently, beam projectors have been spreading to replace LCD TVs. In addition, beam projectors are being used for film screening, digital photo projection, corporate and educational presentations, and video games. However, the beam projectors used in homes do not satisfy consumers in light of this trend. In general, a projector outputs an image input from an image storage medium and projects the image on the screen in one direction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a projector that outputs an image to all directions using four lenses having four directions.

Still another object of the present invention is to provide a projector for changing a motion and color of an image output by recognizing a human motion using a motion sensor unit.

The four-way projector of the present invention for achieving the above object comprises a lens unit for projecting and expanding the image light generated from the light source at a predetermined position in the four directions on the front screen; A motion sensor unit positioned at an upper end of the lens unit and extracting motion information of an object using a camera; A resonance part formed by opening and closing a cover part at a predetermined position of a lower end of the motion sensor part; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; A control unit which receives a motion information of the object extracted from the motion sensor unit and outputs a control signal for changing the motion and color of the output image; And an image processor for changing the position and color of the image output based on the control signal.

The resonance unit is characterized in that the opening and closing height is adjusted by the motor.

The focus sensor unit may adjust the focus based on a user input value.

The focus sensor unit may be automatically adjusted using a focus adjustment algorithm.

The apparatus may further include an external connection interface for receiving the image from an external image medium.

It further comprises an infrared communication module for receiving a user input signal.

The lens units positioned in the four directions may be perpendicular to each other.

The focus sensor unit is characterized in that it is driven when the resonator is in the open state.

In yet another aspect, the four-way projector of the present invention includes a lens unit for projecting and enlarging an image light generated from a light source at a predetermined position in four directions on a front screen; A resonance unit formed by opening and closing a cover part at a predetermined position at a lower end of the lens unit; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; A signal receiver positioned at the center of the cover part and receiving an input signal from a user; A controller for outputting a control signal for changing the motion and color of the image based on the signal input from the signal receiver; And an image processor for changing the position and color of the image output based on the control signal.

The signal receiver is characterized in that the infrared communication module capable of communicating with the remote control.

The apparatus further includes a storage unit for storing the video and audio signals.

The apparatus may further include a motion sensor unit positioned at an upper end of the lens unit and extracting motion information of an object using a camera.

In addition, the four-way projector of the present invention includes a lens unit for projecting and expanding the image light generated from the light source at a predetermined position in the four directions on the front screen; A motion sensor unit positioned at an upper end of the lens unit and extracting motion information of an object using a camera; A resonance part formed by opening and closing a cover part at a predetermined position of a lower end of the motion sensor part; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; An image processor to output motion information of the object extracted from the motion sensor unit as an image image; And a controller configured to control the image processor based on the output request signal of the user, on the motion information of the object extracted from the motion sensor unit.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the description thereof will be omitted.

1 is an exemplary view illustrating a configuration of a four-way projector according to the present invention.

The first lens unit 10, the second lens unit 20, the third lens unit 30, and the fourth lens unit 40 of the projector are positioned in four directions of the cross shape. In this case, the at least one lens unit projects the image light generated by the light source onto the front screen to enlarge the screen. In addition, the upper part of each lens unit is positioned as a first motion sensor unit 11, a second motion sensor unit 21, a third motion sensor unit 31, and a fourth motion sensor unit 41, respectively. Track the movement of the subject.

In the four-way projector according to the present invention, a lower end portion of the lens unit is attached to a fixed end such as a ceiling, and a cylindrical resonance unit is formed at the center of the projector to control the opening and closing state of the cover portion 50 using a motor. At this time, the cover portion is opened to serve as the vent 50 of the heated air inside, or when not in use, the cover is lowered to block the vent 50, to prevent dust and the like.

2 (a, b) are a side view and a plan view of a four-way projector according to the present invention.

2A shows a state in which the bottom portion of the four-way projector is attached to the ceiling and the lid portion is opened. Projecting the image light generated by the light source through the first lens unit 10 on the screen of the front to enlarge the screen, and the first motion sensor unit 11 located on the upper portion of the lens unit using the camera to monitor the movement of the subject. To track. The movement of the tracked subject is displayed on the screen through the first lens unit 10. The focus sensor unit 12 located at least one on the open cover portion controls the focus of the output image by measuring the distance between the screen and the projector.

 The cover part 50 having the cylindrical resonance part of FIG. 2B is automatically opened and closed automatically by a control method by a motor, and has a function of blocking contaminants in a closed state as a vent hole in an open state.

3 is a block diagram showing an internal configuration of a four-way projector of the present invention.

The four-way projector according to the present invention includes a first projector 317, a second projector 319, a third projector 321, and a fourth projector 323, each of which is a light source for generating light (not shown). And a lens 320 for enlarging the screen by projecting the image light generated by the light source to the screen on the front side of the image element 316 for producing an image.

The motion sensor unit 301 tracks and photographs the movement of the subject using a camera. At this time, the camera rotates the image left and right to recognize the movement of the subject.

The focus sensor unit 303 adjusts the focus of the image projected through the lens based on an input value from a user or by using an auto focus adjustment algorithm according to a distance measurement.

The signal receiver 305 receives a driving signal of a four-way projector and a cover opening / closing request signal from a user. At this time, the module for infrared communication with a remote control unit and the like.

The external connection interface 307 is configured as an external communication port for transmitting input of video and audio signals from the outside, and is a USB port, an S-video cable, an HDMI cable, a speaker / amplifier input terminal, and the like.

The image processor 309 processes and outputs the image input and the stored image signal through the external connection interface 307.

The controller 311 controls the selection and driving of a four-way projector that projects and enlarges the image light generated by the light source on the front surface or the slope. In addition, the image captured by the motion sensor unit 301 is controlled to be output through the four-way projector and the opening and closing of the cover portion is controlled using a motor. The controller 311 changes the position and color of the image output according to the movement of the subject through the motion sensor unit 301 according to the type of the image.

The storage unit 313 stores a focus adjustment algorithm and stores a video image and audio data.

The resonance unit 315 is formed according to the opening and closing state of the cover, and in this case, the motor 314 is used as the height adjusting means of the cover. Through the resonator 315 helps to ventilate the superheated air therein.

4 is an exemplary view illustrating operation recognition of a four-way projector according to an exemplary embodiment of the present invention.

In order to recognize the motion of the subject in real time through the motion sensor unit, the image signal including the background image and the motion of the object is input, and information necessary to recognize the motion of the object, which is the subject, is extracted, and the boundary and movement distance of the object are obtained to determine the state of the object. Detect. In addition, the focus sensor is driven while the cover is opened to adjust the focus of the image projected on the front screen. The image according to the recognition of the movement of the object provides an image related to ball play and drawing of fish, soccer, green ball, etc. in the aquarium, and the motion and color of the image change in response to motion recognition.

5A to 5D are diagrams illustrating a production process using a sensor and an image output of a four-way projector according to an exemplary embodiment of the present invention.

5A illustrates a four-way projector outputting a fish image in a space of a slope and recognizing a movement of an object from a motion sensor unit. At this time, when the position of the object overlaps with the fish image, the movement of the output fish image is shifted so that the movement of the fish avoiding the approach of the object appears. Figure 5b is a four-way projector outputs a video image having a variety of patterns in the space of the slope to receive a color conversion value using a remote control from the user to produce a color change at a position where the output image is fixed. FIG. 5C shows a variety of topics such as galaxies, constellations and planets, underwater trips and underwater animals, forest trips and insects by outputting a space image image from a four-way projector, and recognizing the movements of the objects, thus providing information on the selected constellations and planets. And the information is displayed on the front screen through one lens.

On the other hand, the terms used in the present invention (terminology) are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the skilled person in the relevant field, the definitions of which are used throughout the present invention. It should be based on.

The present invention is not limited to the above-described embodiments and may be variously modified and changed by those skilled in the art, and the definitions in the appended claims are included in the spirit and scope of the present invention.

The present invention has the effect of providing a playful function to the children with immediate feedback by changing the motion and color of the output image image when the children move and use the four-way projector operating the motion sensor unit.

In addition, by changing the color of the image output from the project in four directions can be produced in the color space can enhance children's creativity.

Claims (13)

A lens unit for projecting and enlarging the image light generated from the light source at a predetermined position in four directions on a front screen; A motion sensor unit positioned at an upper end of the lens unit and extracting motion information of an object using a camera; A resonance part formed by opening and closing a cover part at a predetermined position under the motion sensor part; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; A control unit which receives the motion information of the object extracted from the motion sensor unit and outputs a control signal for changing the motion and color of the output image; And A four-way projector including an image processor configured to change a position and color of an image output based on the control signal. The method of claim 1, The resonance unit is a four-way projector, characterized in that the opening and closing height is adjusted by a motor. The method of claim 1, And the focus sensor unit adjusts focus based on a user input value. The method of claim 1, And the focus sensor unit is automatically adjusted using a focus adjustment algorithm. The method of claim 1, And a external connection interface for receiving the image from an external image medium. The method of claim 1, A four-way projector further comprising an infrared communication module for receiving a user input signal. The method of claim 1, And the lens units positioned in the four directions are perpendicular to each other. The method of claim 1, And the focus sensor unit is driven when the resonance unit is in an open state. A lens unit for projecting and enlarging the image light generated from the light source at a predetermined position in four directions on a front screen; A resonance part formed by opening and closing a cover part at a predetermined position of the lower end of the lens part; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; A signal receiver positioned at the center of the cover part and receiving an input signal from a user; A controller for outputting a control signal for changing a motion and a color of an image based on a signal input from the signal receiver; And A four-way projector including an image processor configured to change a position and color of an image output based on the control signal. The method of claim 9, The signal receiving unit is a four-way projector, characterized in that the infrared communication module for communicating with the remote control. The method of claim 9, Four-way projector further comprises a storage for storing the video and audio signals. The method of claim 9, And a motion sensor unit located at an upper end of the lens unit and extracting motion information of an object using a camera. A lens unit for projecting and enlarging the image light generated from the light source at a predetermined position in four directions on a front screen; A motion sensor unit positioned at an upper end of the lens unit and extracting motion information of an object using a camera; A resonance part formed by opening and closing a cover part at a predetermined position under the motion sensor part; A focus sensor unit positioned on the cover part to adjust a focus of an image projected through the lens unit; An image processor to output motion information of the object extracted from the motion sensor unit as an image image; And And a controller configured to control the image processor based on an output request signal of a user based on an operation request signal of the object extracted from the motion sensor unit.

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