JP2000152202A - Portable image projector and portable image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable image projector and a portable image display device that easily projects or displays an image based on image data received by radio communication in a satisfied size. SOLUTION: A main body section 101 being a radio communication device receives image data through radio communication, transmits the image data to a projection function section 102 in a form of a very weak radio wave, and the projection function section 102 projects an image formed based on the image data to an object to be projected. The projection function section 102 is of a headphone type and easily mounted on a human body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable image projection device and a portable image display device capable of transmitting and receiving images and projecting and displaying images.

[0002]

2. Description of the Related Art In recent years, with the development of data communication technology,
2. Description of the Related Art In order to explain the situation of a site where the user is going out, it has become possible to photograph the site and transmit the image.
In this case, for example, the site is photographed with a digital still camera, the digital still camera is connected to a portable information terminal such as a PDA, and image data acquired by the digital still camera is transmitted from the portable information terminal.

[0003]

However, when transmitting an image by the above method, it is necessary to have an imaging device such as a digital still camera and a portable information terminal for data transmission. Currently, portable information terminals equipped with an imaging device are sold, but it is still necessary to possess such a portable information terminal.

[0004] Further, since the portable information terminal places importance on portability, the portable information terminal has been reduced in size and weight, and the display for displaying images is relatively small. Therefore, even if the image data is sent, it may be difficult to display the image in a size satisfactory to the recipient.

The present invention has been made in view of the above circumstances, and a portable image projection apparatus and a portable image projection apparatus capable of easily and satisfactorily project or display an image based on image data received by wireless communication. It is an object to provide a portable image display device.

[0006]

The gist of the present invention is that a wireless communication unit acquires image data by wireless communication, transmits the image data to an image projection unit or an image display unit, and transmits the image data to the image projection unit or the image display unit. To project or display an image of a desired size. Also,
The image photographed by the photographing device of the image projection unit or the image display unit is transmitted to the wireless communication unit, and the image data is transmitted from the wireless communication unit by wireless communication.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first aspect of a portable image projection apparatus according to the present invention is a first transmission / reception unit for transmitting / receiving image data by wireless communication and an image data received by the first transmission / reception unit. A wireless communication unit having a second transmission / reception unit for transmitting, a display unit for displaying an image based on the image data transmitted from the second transmission / reception unit, and an image displayed on the display unit on the projection target And an image projection unit having projection means for projecting.

According to this configuration, the image data from the wireless unit is transmitted to the image projecting unit, and an image based on the image data is projected from the image projecting unit. The data can be displayed on a projection object such as a wall in a desired size.

In addition, since the image is projected from the image projection unit, there is no limitation on the object to be projected. Regardless of the place, the user can view an image of a desired size by himself / herself, and can show the image to others. it can.

According to a second aspect of the portable image projection apparatus according to the present invention, in the first aspect, the image projection unit includes a photographing device, and the image photographed by the photographing device is used as the image data as the image data. A configuration for transmitting to the transmission / reception unit 2 is adopted.

According to this configuration, since the image can be obtained in real time by the photographing device, the image data can be easily transmitted to the communication partner when necessary.

According to a third aspect of the portable image projection apparatus according to the present invention, in the first or second aspect, the image projection unit supports the unit main body, and mounts the unit main body on a human head. And a mounting member having a possible curved shape.

According to this configuration, the image projection unit can be mounted like a headphone.
There is no need to carry a portable information terminal such as a DA with the wireless communication device. In addition, when the photographing device is mounted on the mounting member, by attaching the photographing device to the position of the user's eyes when the image projection unit is mounted, the state viewed by the user can be directly transmitted as an image.

According to a fourth aspect of the portable image display device according to the present invention, there is provided a first transmitting / receiving section for transmitting / receiving image data by wireless communication, and a second transmitting / receiving section for transmitting image data received by the first transmitting / receiving section. And an image display unit having display means for displaying an image based on the image data transmitted from the second transmitting / receiving unit.

According to this configuration, the image data from the wireless unit is transmitted to the image display unit, and an image based on the image data is displayed on the image display unit. Data can be easily displayed.

In a fifth aspect of the portable image display device according to the present invention, in the fourth aspect, the image projection unit includes a photographing device, and the image photographed by the photographing device is used as the image data as the image data. A configuration for transmitting to the transmission / reception unit 2 is adopted.

According to this configuration, since the image can be acquired in real time by the photographing device, the image data can be easily transmitted to the communication partner when necessary.

According to a sixth aspect of the portable image display device according to the present invention, in the fourth or fifth aspect, the image projecting unit has a spectacle-shaped mounting member, and a unit body mounted on the mounting member. Are adopted.

According to this configuration, since the image display unit can be worn like eyeglasses, there is no need to carry a portable information terminal such as a PDA separately from the wireless communication device. In addition, when the image capturing device is mounted on the mounting member, by attaching the image capturing device to the position of the user's eye when the image display unit is mounted, the state seen by the user can be directly transmitted as an image.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. (Embodiment 1) FIG. 1 is a schematic diagram showing a use state of a portable image projection apparatus according to Embodiment 1 of the present invention. The portable image projection device includes a main body 101 and a projection function section 1.
02, and wireless communication is performed between the main unit 101 and the projection function unit 102 using weak radio waves. Here, a case is described where the main body 101 is a portable wireless communication device, and the projection function unit 102 is a headphone type image projection device that supports a projection unit and is formed of a curved member that can be easily mounted on a human head. explain.

The projection function unit 102 is a CC that is an imaging device.
D camera 102a and image projection unit 102 for projecting an image
b and a microphone 103c for voice input. Further, the projection function unit 102 has a built-in speaker for audio output.

FIG. 2 is a block diagram showing the configuration of the main body 101. As shown in FIG. In FIG. 2, a CPU 201 includes a main body 1
01 is controlled entirely. The radio unit 203 includes the antenna 20
2 for transmitting and receiving signals. Wireless control unit 204
Controls processing related to transmission and reception of the wireless unit 203. The television tuner unit 205 selects a desired reception channel from the television video signal and converts it into an intermediate frequency signal.

The operation section 206 is a section for performing various operations on the main body 101. The operation drive unit 207 drives each unit according to an input to the operation unit 206. The weak radio wave transmitting / receiving unit 208 transmits an audio signal, an image signal, and a television video signal received via the antenna to the projection function unit 102 and receives a signal from the projection function unit 102. The microphone 209 is provided for voice input, and the speaker 210 is provided for voice output. The battery 211 includes a wireless unit 203 and a wireless control unit 20.
4. Power is supplied to the operation drive unit 207, the weak radio wave transmission / reception unit 208, the microphone 209, and the speaker 210.

FIG. 3 is a block diagram showing the configuration of the projection function unit 102. 3, a CPU 301 controls the entire projection function unit 102. Light source (lamp) 302
Is used during projection. The transmissive LCD 303 is a display element that displays an image according to image data or video data. The lens 304 is for projecting an image displayed on the transmissive LCD 303. The cooling fan unit 305 is a cooling unit for radiating heat generated by the light emitted from the light source 302.

The operation section 306 is a section for performing various operations on the projection function section 102. Operation drive unit 307
Drives each part according to the input to the operation unit 306. The weak radio wave receiving and transmitting unit 308 receives an audio signal, an image signal, and a television video signal from the main unit 101 and transmits a signal to the main unit 101. The microphone 309 is provided for voice input, and the speaker 310 is provided for voice output. The battery 311 includes the light source 30
2, transmission type LCD 303, cooling fan unit 305, operation drive unit 307, weak radio wave reception / transmission unit 308, microphone 309,
Power is supplied to the speaker 310.

The operation of the portable image projection device having the above configuration will be described. First, when an image signal and an audio signal are transmitted from a communication partner, the antenna 20
2 is received by the radio unit 203. The signal thus received is subjected to a modulation process or the like and sent to the weak radio wave receiving / sending unit 208. In this case, the processing of the wireless unit 203 is controlled by the wireless control unit 204 according to an instruction from the CPU 201. The signal sent to the weak radio wave receiving and transmitting unit 208 is
It is transmitted to the projection function unit 102 by a weak radio wave.

In the projection function unit 102, when the signal from the main unit 101 is received by the weak radio wave transmitting / receiving unit 308, the image signal is converted into data and sent to the transmission type LCD 303 to form an image. This image is projected on a projection target such as a wall by the light of the light source 302.

Here, the projection mechanism in the projection function unit will be described with reference to FIG. Referring to FIG.
A heat shield plate 402 for shielding heat from the light source is disposed on the front side (outgoing direction) of the light source. This heat shield plate 402
The transmission type LCD 403 is arranged at the subsequent stage. Further, a lens 404 is arranged at a stage subsequent to the transmissive LCD 403. In the vicinity of the light source 401, a cooling fan 405 is arranged to prevent the influence of heat from the light source.

In the projection function unit having such an arrangement, when the signal from the main unit is received by the weak radio wave receiving / transmitting unit as described above, the image signal is converted into data and transmitted.
D403, and an image is formed on the transmissive LCD 403. When light from the light source 401 is applied to the transmission LCD 403, an image on the transmission LCD 403 is projected through the lens 404. That is, as shown in FIG. 5, the projection function unit 102 attached like a headphone
The image 502 is projected on the projection target 501 such as a wall. The projection target is not particularly limited. Focusing of the projected image is performed by adjusting the distance between the light source 401 and the lens 404 by driving means (not shown). The operation related to projection is performed by the operation drive unit 307 in response to an input to the operation unit 306.

Next, a case where a television image signal is received will be considered. When a television video signal and an audio signal are received via the antenna 202, the television tuner unit 205 selects a desired reception channel from the television video signal and converts it into an intermediate frequency signal. Then, after undergoing modulation processing and the like, the signal is transmitted to the weak radio wave receiving and transmitting unit 208 and transmitted to the projection function unit 102 by the weak radio wave. The operation from reception of the transmitted signal by the projection function unit to projection is the same as described above.

The voice input by the microphone 309 of the projection function unit 102 and the image captured by the CCD camera 102b are converted into voice data and image data, respectively, as the main unit 1
01 and transmitted wirelessly.

Further, the main body 101 can be used alone as a normal portable radio communication device. That is, the audio signal received via the antenna 202 is output from the speaker 210, and the audio input from the microphone 209 is transmitted as an audio signal via the antenna 202. Processing related to wireless communication in this case is controlled by the wireless control unit 204.

As described above, the portable image projection apparatus according to the present embodiment projects the transmitted image signal and video signal by the projection function unit 102, and displays the received image data in a satisfactory size. be able to. Further, in the present embodiment, since the projection function unit 102 is a headphone type image projection device, it can be easily attached to the body, becomes hands-free, and uses a device such as a PDA in addition to the wireless communication device (main unit). No need to carry around.

(Embodiment 2) FIG. 6 is a perspective view showing a projection function unit of a portable image display device according to Embodiment 2 of the present invention. This portable image display device mainly includes a main body and a virtual function unit (image display unit), and wireless communication using weak radio waves is performed between the main unit and the virtual function unit. Here, a case will be described in which the main body is a portable wireless communication device, and the virtual function unit is a glasses-type image display device in which a unit main body is attached to a frame. The main body is the same as in the first embodiment, and a detailed description thereof will be omitted.

A lens 602 is attached to the front upper portion of the frame 601 of the glasses. A mirror 604 is tiltably attached to the frame 601 so as to extend below the frame 601 at a position corresponding to the lens 602. The tilt angle of the mirror 604 is, for example, about 50 degrees. An LCD 607 is arranged between the lens 602 and the frame 601. As this LCD, for example, a non-transmissive type is used.

Further, a shield 605 is attached to the frame 601 so as to cover the eyes. A microphone 603 is attached to the shield 605. Further, a CCD camera 606 is provided above and in front of the frame 601 and beside the lens 602. Also, a speaker 60 is provided at a string portion of the frame 601.
8 is attached.

FIG. 7 is a block diagram showing the configuration of the virtual function unit. 7, a CPU 701 controls the entire virtual function unit. The LCD 702 is a display element that displays an image according to image data or video data. The LCD drive unit 703 performs display driving of the LCD 702. With the lens 704 and the mirror 705,
The image forming position is adjusted so that the image on the LCD 702 can be visually recognized.

The operation section 706 is a section for performing various operations on the virtual function section. Operation drive unit 707
Drives each part according to the input to the operation unit 706. The weak radio wave receiving and transmitting unit 708 receives an audio signal, an image signal, and a television video signal from the main unit and transmits a signal to the main unit. The microphone 709 is provided for voice input, and the speaker 710 is provided for voice output. The battery 711 includes an LCD 702, an LCD
Drive unit 703, operation drive unit 707, weak radio wave reception / transmission unit 7
08, a microphone 709, and a speaker 710.

The operation of the portable image display device having the above configuration will be described. First, when an image signal and an audio signal are transmitted from a communication partner, the signal is received by the wireless unit 203 via the antenna 202 of the main unit. The signal thus received is subjected to a modulation process or the like and sent to the weak radio wave receiving / sending unit 208. In this case, the process of the wireless unit 203
It is controlled by the wireless control unit 204 according to an instruction from the CPU 201. The signal transmitted to the weak radio wave receiving and transmitting unit 208 is transmitted to the virtual function unit by a weak radio wave.

In the virtual function unit, when a signal from the main unit is received by the weak radio wave reception / transmission unit 708, the image signal is
The data is converted to data and sent to the LCD 702 to form an image. The LCD 702 is controlled by an LCD drive unit 703. The image is displayed in the glasses.

Here, the display mechanism in the virtual function unit will be described with reference to FIG. In FIG. 8, LCD 607 is arranged inside the glasses. LCD607
A lens 602 is arranged below the lens. On the shield side of the frame 601 corresponding to the lower side of the lens 602, a retractable mirror 604 is attached.
These LCD 607, lens 602, and mirror 60
Reference numeral 4 denotes a mirror on which an image on the LCD passes through a lens
It is arranged to reflect at 04 and reach the wearer's eyes. Further, a CCD camera 606 is attached to the frame 601 with the photographing lens facing outward.

In the virtual function unit having such an arrangement, when the signal from the main unit is received by the weak radio wave receiving and transmitting unit as described above, the image signal is converted into data and
The image is sent to D607, and an image is formed on LCD607. The image on the LCD 607 is projected on a mirror 604 via a lens 602. That is, as shown in FIG. 9, the image 902 is displayed on the mirror 604 inside the shield 605. Note that the orientation and focus of the displayed image are adjusted by adjusting the tilt angle of the mirror 604 or the distance between the LCD 607 and the lens 602 by a driving unit (not shown). In addition, regarding the operation related to the display, by inputting to the operation unit 706,
The operation drive unit 707 performs this operation. Mirror 6 of shield 605
Outside the area 04, the outside scenery 901 can be seen.

Next, a case where a television image signal is received will be considered. When a television video signal and an audio signal are received via the antenna 202, the television tuner unit 205 selects a desired reception channel from the television video signal and converts it into an intermediate frequency signal. Then, after undergoing a modulation process or the like, the signal is transmitted to the weak radio wave receiving / transmitting unit 208 and transmitted to the virtual function unit by the weak radio wave. The operation from reception of the transmitted signal by the virtual function unit to display is the same as described above.

The voice input by the microphone 709 of the virtual function unit and the image captured by the CCD camera 606 are transmitted wirelessly as voice data and image data via the main unit.

As described above, the portable image display device according to the present embodiment displays the transmitted image signal and video signal on the virtual function unit, so that the display can be performed even when there is no projection object such as a wall. can do. Further, in the present embodiment, since the virtual function unit is an eyeglass-type image display device, it is easy to wear on the body, becomes hands-free, and carries a device such as a PDA in addition to the wireless communication device (main unit). No need.

In the first and second embodiments, the case where the main body is a portable radio communication device, the projection function unit is a headphone type, and the virtual function unit is a glasses type image display device is described. However, the present invention is not particularly limited in its form as long as the projection function unit and the virtual function unit can be easily attached to a human body.

[0047]

As described above, the portable image projection device and the portable image display device of the present invention easily or satisfactorily project or display an image based on image data received by wireless communication. be able to. This makes it possible to easily perform communication using images regardless of location without carrying a portable information terminal such as a PDA.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a use state of a portable image projection device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a main body of the portable image projection device according to the embodiment.

FIG. 3 is a block diagram showing a configuration of a projection function unit of the portable image projection device according to the embodiment.

FIG. 4 is a view for explaining an image projection mechanism of the portable image projection apparatus according to the embodiment.

FIG. 5 is a view for explaining an image projection state of the portable image projection apparatus according to the embodiment.

FIG. 6 is a perspective view showing a portable image projection device according to a second embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a virtual function unit of the portable image projection device according to the embodiment.

FIG. 8 is a view for explaining an image projection mechanism of the portable image projection apparatus according to the embodiment.

FIG. 9 is a view for explaining an image projection state of the portable image projection apparatus according to the embodiment.

[Explanation of symbols]

 201, 301, 701 CPUs 208, 308, 708 Weak radio wave reception / transmission unit 302 Light source 303 Transmission type LCD 304 Lens 305 Cooling fan unit 702 LCD 703 LCD drive unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/225 H04N 5/40 5K067 5/40 5/44 H 5/44 5/64 511A 5/64 511 7/18 A 7/18 H04B 7/26 109M F term (reference) 5C022 AA12 AC00 AC01 AC21 AC69 AC72 AC73 5C025 AA03 AA08 AA09 AA21 5C054 AA02 CE11 DA01 DA07 DA09 EA03 FA00 FA02 FA07 HA00 HA24 5C064 AA01 AC04 AC06 5G435 AA12 AA18 BB12 BB15 BB16 BB17 DD02 DD06 FF13 GG02 GG08 GG44 GG46 5K067 BB21 DD52 FF23 FF31

Claims (6)

[Claims] A wireless communication unit having a first transceiver for transmitting and receiving image data by wireless communication and a second transceiver for transmitting image data received by the first transceiver; A display unit for displaying an image based on the image data transmitted from the transmission / reception unit, and an image projection unit having a projection unit for projecting the image displayed on the display unit onto a projection target. Portable image projection device. 2. The portable image according to claim 1, wherein the image projection unit includes a photographing device, and transmits an image photographed by the photographing device to the second transmission / reception unit as image data. Projection device. 3. An image projection unit, comprising: a unit main body;
The portable image projection device according to claim 1, further comprising: a mounting member that supports the unit main body and has a curved shape that can be mounted on a human head. 4. A wireless communication unit having a first transceiver for transmitting and receiving image data by wireless communication, a second transceiver for transmitting image data received by the first transceiver, and the second communication unit. A portable image display device comprising: an image display unit having display means for displaying an image based on the image data transmitted from the transmission / reception unit. 5. The portable image according to claim 4, wherein the image projection unit includes a photographing device, and transmits an image photographed by the photographing device to the second transmission / reception section as image data. Display device. 6. The portable image display according to claim 4, wherein the image projection unit includes an eyeglass-shaped mounting member, and a unit main body attached to the mounting member. apparatus.