JP2002152626A - Portable video telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize the ocular part of a portable video telephone by making the device configuration of a virtual image optical display device 2 in front of the eyes of a user in the portable video telephone with the main body 1 having video and voice radio transmitting and receiving functions and the virtual image optical display device 2 for forming video information as a virtual image on the retinas of the eyes of the user from a video information drive part 3 through an image forming optical system. SOLUTION: The image forming optical system 4 of the virtual image optical display device 2 is divided between a video information drive optical system 4a and an ocular optical system 4c through a folding part 4b. The ocular optical system 4c is attached to an arm 6 provided in the telephone set main body 1 in a foldable way. A video camera 11 is arranged at the telephone set main body 1 so as to make the ocular optical system 4c at the time when the arm 6 is released in almost parallel with the photographing direction of the video camera 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone body having a function of wirelessly transmitting and receiving video and audio, and forming a virtual image on a retina of a user's eye from a video information driving unit through a video information driving unit. The present invention relates to a portable videophone provided with a virtual image optical display device.

[0002]

2. Description of the Related Art Conventionally, there is a portable videophone in which received video information is recognized and displayed by forming a virtual image on a retina of a user's eye from a video information driving unit through an imaging optical system.

In the above-described conventional virtual image optical display device of a portable videophone, an image forming optical system and a video information driving unit are integrally mounted on a telephone body beyond an eyepiece when viewed from the user's eyes. (See US Pat. No. 6,073,034).

[0004]

In the case where the video information drive section is disposed integrally with the eyepiece section located in front of the user's eyes, the equipment configuration located in front of the eyes becomes large, and the overall balance is reduced. Unfortunately, it was necessary to increase the thickness of the telephone body.

It is an object of the present invention to reduce the size of the eyepiece of a portable videophone by minimizing the device configuration of a virtual image optical display device located in front of the user. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a telephone body having a function of wirelessly transmitting and receiving video and audio, and a user who transmits video information from a video information driving unit through an imaging optical system. A virtual image optical display device for forming a virtual image on the retina of the eye of the eye, wherein the imaging optical system of the virtual image optical display device is connected to the video information drive unit side optical system via a folding unit. The eyepiece-side optical system is mounted on an arm that is foldable on the telephone body while being separated from the eye-side optical system, and the image information driving unit-side optical system and the image information are mounted in the telephone body. The video camera unit is disposed on the phone body so that the driving unit is mounted and the eyepiece side optical system when the arm is opened and the shooting direction of the video camera unit are parallel or almost parallel. Being And it features.

As described above, the image forming optical system is divided into the optical system for the image information drive unit and the optical system for the eyepiece unit via the turn-back unit, so that it is in front of the user's eyes. To
Only the eyepiece-side optical system can be located, and the video information drive unit can be located at the side of or behind the eye.

Therefore, the size of the device located in front of the user can be reduced, and the size of the portable videophone can be reduced.

When the video camera section is arranged on the main body of the telephone so that the eyepiece section side optical system and the video camera section are in a parallel or almost parallel direction when the arm is opened, the eyepiece section optical system is provided. When the user observes the system,
The video camera section takes an image of a portion located in front of the user's eyes. For this reason, the user can take an image of the subject with the video camera unit while following the eye.

[0010] The present invention, in addition to the above-described structure,
A means for detecting the open / closed state of the arm is provided, and at least the drive of the video information drive unit is controlled according to the open / closed state of the arm.

With the above-described configuration, it is possible to reduce power consumption and avoid use in an unsightly manner.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 7 show a first embodiment of a portable videophone according to the present invention.

The portable videophone of this embodiment has a telephone body 1 having a function of wirelessly transmitting and receiving video and audio, and video information from a video information driving section 3 to an image forming optical system 4 on a retina of a user's eye E. A virtual image optical display device 2 for forming a virtual image.

The image forming optical system 4 includes lens groups L1 to L
5 and a combination of the plane mirrors M1 and M2, FIG.
As shown by the arrow, a relay optical system separated into an image information drive unit side optical system 4a, a turnback unit 4b, and an eyepiece unit side optical system 4c is configured.

The main body 1 of the telephone is provided with an arm 6 on which at least the eyepiece-side optical system 4c is mounted. Further, although not shown, a control circuit for performing transmission / reception operations and other control operations of the telephone is provided inside the telephone main body 1.

An arm 6 to which the eyepiece-side optical system 4c is attached is foldable by the hinge 5 with respect to the telephone body 1.

In this embodiment, as shown in FIG. 1, the telephone body 1 is provided with a video information drive unit 3, a video information drive unit side optical system 4a, and a part of the turnback unit 4c. Part of the folded portion 4c and the eyepiece side optical system 4c
Is provided. Hereinafter, the display eyepiece 6a including a part of the folded portion 4c provided on the arm 6 and the eyepiece optical system 4c is referred to as a display eyepiece 6a.

FIG. 2 shows a state in which the arm 6 is raised and opened,
FIG. 3 shows a state in which the arm is folded and closed. As shown in FIG. 2, when the arm 6 is open, the relay optical system is formed.

An external exposure space C is provided in the middle of the relay optical system, and the external exposure space C reduces the weight of the holding portion of the relay optical system.

The telephone body 1 has a push button operation unit 7, a liquid crystal display unit 8, a speaker unit 9, and a microphone unit 10.

As shown in FIG. 2, when the speaker 9 is brought into contact with the ear while the arm 6 for mounting the display eyepiece 6a having the eyepiece optical system 4c is opened, as shown in FIG. The eyepiece side optical system 4c is located in front of the user's eye E, and the video information from the video information drive unit 3 is displayed as a virtual image on the retina of the user's eye E through the relay optical system. You. That is, when the arm 6 is securely opened and the speaker 9 is brought into contact with the ear in this state, the speaker 9 is moved from the telephone body 1 so that the eyepiece side optical system 4c is positioned in front of the eye E of the user. The length up to the hinge portion 5, the length of the arm 6, and the angle between the arm 6 and the telephone body 1 are determined under ergonomically optimum conditions.

For this reason, the user operates the eyepiece section side optical system 4c.
In a state in which the arm 6 to which the display eyepiece unit 6a including the display unit 6a is attached is opened, the speaker unit 9 is put on the ear, and when viewing the video information, it is configured to be able to observe in a natural state without fatigue. I have.

As shown in the drawing, a holding portion 13 is formed between the speaker portion 9 of the telephone body 1 and the hinge 5 so as to have a rounded shape so as to be easily held.

Further, the telephone body 1 has a video camera unit 11 for photographing a transmission image, and the video camera unit 11 is mounted so as to photograph a subject facing the user. That is, when the arm 6 is opened, the surface opposite to the surface on which the speaker unit 9 and the like are provided so that the eyepiece unit side optical system 4c and the video camera unit 11 are in a parallel or almost parallel direction. Placed in Therefore,
When the user observes the eyepiece optical system 4c, the video camera unit 11 takes an image of a portion located in front of the user's eyes. For this reason, the user can take a picture of the subject with the video camera unit 11 while following the eye.

As shown in FIG. 5, the portable videophone is configured such that in use, the speaker unit 9, the holding unit 13, the video camera unit 11, and the display eyepiece unit 6a are arranged in this order. ing. And
The shutter button 12 of the video camera unit 11 is provided at a position where the fingertip of the telephone body 1 is easily pressed when the user grasps and holds the telephone body 1 with the holding unit 13.

As described above, since the holding unit 13 is located behind the video camera unit 11 during use, a fingertip or the like can be used even when using the telephone.
It is possible to photograph a subject in the direction of the user's eyes without disturbing the photographing of the user.

The image photographed by the video camera unit 11 is given to the image information drive unit 3 as image information, and is displayed as a virtual image on the retina of the user's eye E through the relay optical system 4 so that the video camera The user can monitor the video taken by the unit 11.
For this reason, the user can transmit the video to the other party while checking the actual video currently being captured.

It is needless to say that the image information driving section 3 is provided with the image information from the other party so that the relay optical system 4 can be used.
The image transmitted to the retina of the user's eye E through the virtual image can be displayed as a virtual image.

By the way, the user sometimes wants to change the photographing state of the video camera unit 11 to some extent vertically in the use state to change the photographing state. If the video camera unit 11 is fixed, it is necessary to take measures such as raising and lowering the face. Therefore, as shown in FIG. 6, the video camera unit 11 may be rotatably attached to the telephone body 1 via the rotation shaft 11a, and the video camera unit 11 may be configured to be rotatable at a predetermined angle. Good.

With this configuration, the video camera unit 11 can be rotated with a fingertip or the like, and the position of the video camera unit 11 can be determined at a desired angular position while checking the virtual image given through the display eyepiece 6a. Thus, the user can operate the telephone body 1 and the video camera unit 11 in the most preferable use state.

The video information drive section 3 is composed of a transmissive or reflective liquid crystal panel and a light source such as an LED.

The image information driving section 3 can use a self-luminous display device such as an EL.

In the above embodiment, the image forming optical system 4 constituting the relay optical system is constituted by the combination of the lens groups L1 to L5 and the plane mirrors M1 and M2. And a combination of curved mirrors.

Since the above-mentioned portable videophone is driven by a battery, it is preferable to use as little power as possible in consideration of the usage time and the like. For this reason, if the power switch is turned on and the video information drive unit 3 is also always turned on, the power by the video information drive unit 3 is used even when the user does not need to watch the video. Absent.

Therefore, in this embodiment, the power of the video information drive unit 3 and the like is controlled by controlling the open / close state of the arm 6 and the setting of the push button operation unit 7.

FIG. 7 is a block diagram showing a circuit configuration of the portable videophone. Although not shown in FIG. 1, an arm sensor switch 108 is provided at a hinge 5 connecting the arm 6 and the telephone main body 1 so that the degree of opening and closing of the arm 6 can be detected.

The signal from the arm sensor switch 108 is given to the controller 100,
0 controls various module circuits based on the signal from the arm sensor switch 108. When a portable videophone is used, it is necessary to open the arm 6 completely and the imaging optical system 4 forms a predetermined optical path. For this reason,
If the state where the arm 6 is opened is incomplete, a virtual image cannot be formed on the retina of the user. In such a state, the user is informed that the open state of the arm 6 is incomplete, and the image information driving unit 6
The controller 100 determines the open / closed state of the arm 6 based on a signal from the arm sensor switch 108 and controls various module circuits in order to reduce power consumption. With such a configuration, it is possible to reduce power consumption and avoid use in an unsightly manner. Specific control will be described later.

Secondary battery 10 such as a lithium ion storage battery
The power from 1 is supplied to each module circuit via the power management circuit 102. The power management circuit 102 is controlled by the controller 100.

The RF circuit 107 frequency-converts and A / D-converts a signal received from the antenna, and supplies the received digital signal to the controller 100, and D / A-converts and frequency-converts transmission data supplied from the controller 100. And output from the antenna.

The controller 100 performs baseband signal processing for a mobile phone, a voice codec for a normal phone, and overall control.

Further, image compression / decompression and compression / decompression of audio signals based on standards such as MPEG4 at the time of videophone communication are performed.
The decompression process is performed by the multimedia processor 106, which is controlled by the controller 100.

The memory 105 mainly stores images and the like necessary for multimedia processing. This memory 105
Is controlled by the controller 100 for writing and reading.

The display controller 113 performs an interface to the video information driving unit 3 and controls the interface, and is controlled by the controller 100.

The video camera unit 11 is controlled by a camera controller 104, and the video data input from the video camera unit 11 is converted into digital signals by the camera controller 104, and is converted into a digital signal by the memory 105, the multimedia processor 106, and the display controller 113. Image data is provided.

The microphone circuit 110 converts the input audio data into digital data and supplies the digital data to the controller 100.
Then, the audio codec is generated by the controller 100,
The signal is transmitted from the antenna to the destination via the RF circuit 107.

The speaker unit 109 is connected to the controller 10
The voice data from the other party given from 0 is demodulated and output as voice.

The push button operation unit 7 is composed of a numeric keypad, a power key, a function key, and the like, and key information pressed by a user is given to the controller 100. The controller 100 performs various operations based on the key information provided from the push button operation unit 7.

The display controller 114 controls the liquid crystal display unit 8 for displaying data input from the keypad, transmission / reception operations, and the like.

Next, the transmission / reception operation of the portable videophone according to the present invention will be described. The basic operation is that the videophone reception data is supplied from the RF circuit 107 to the controller 100 and from the controller 100 to the multimedia processor 106. The multimedia processor 106 decodes the audio and the image, and the image data is sent to the display controller 113. The display controller 113 drives the video information driving unit 3 based on the given image data. Is provided to the user's eyes E from the display eyepiece 6;
Recognized as a virtual image.

The video data transmitted from the video camera 11 is transmitted from the camera controller 104 to the multimedia processor 106.
, And the image is compressed by the multimedia processor 106, supplied to the RF circuit 107 from the controller 100, and transmitted. The image data from the video camera unit 11 is also provided to the display controller 113, and the video data captured by the video camera unit 11 from the video information drive unit 3 is provided to the user's eyes E from the display eyepiece unit 6 and can be monitored. . The audio data of the videophone is supplied from the microphone circuit 110 to the multimedia processor 106, the audio is compressed by the multimedia processor 106, and supplied from the controller 100 to the RF circuit 107 for transmission.

Although the basic operation of the portable videophone according to the present invention is performed as described above, in order to reduce the power consumption, in the present invention, when the portable videophone is used as a videophone, the arm 6 is used. The power supply management circuit 102 is controlled so as not to supply power to the circuit for performing image processing unless the arm 6 is completely opened even if the power switch is turned on even if the power switch is turned on. hand,
It suppresses power consumption.

For this reason, when the controller 100 detects that the arm 6 is completely opened based on a signal from the arm sensor switch 108, the video information driving unit 3, the display controller 113, the video camera unit 11, the camera controller 104, multimedia processor 1
06 and so on. It should be noted that the configuration may be such that power is supplied to the minimum number of module circuits instead of supplying power to all the above-described module circuits by setting function keys and the like. For example, when only transmitting an image to the other party, various settings can be considered, such as suppressing power consumption without supplying power to the video information driving unit 3 that requires a large amount of power.

Hereinafter, a control example will be described. For example, when talking only on the voice line, open the arm 6,
When the controller 100 determines from the signal from the arm sensor switch 108 that the arm 6 has been completely opened, the controller 100 sets the video information driving unit 3, the display controller 113, the multimedia processor 106,
It instructs the power management circuit 102 and each module circuit to start the video camera unit 11, the camera controller 104, and the memory 105.

It should be noted that, since a videophone cannot be used on a voice line, it is usually necessary to disconnect the voice line once and establish (re-establish) a line for the videophone.
However, if there is a function capable of simultaneously connecting a plurality of lines, it is possible to seamlessly shift from a voice call to a videophone by the following procedure.

The controller 100 includes the video camera unit 1
The transmission image photographed in step 1 is given to the image information driving unit 3 to display a virtual image on the retina of the user's eye E, make a line connection for a videophone, perform one-way video transmission and two-way audio. Transmission and reception are realized, and then each module circuit is controlled so as to disconnect the first voice line.

Further, for example, during videophone communication and when no image is being received, that is, when only image transmission is being performed, the arm 6 is closed, and the signal from the arm sensor switch 108 causes the controller 100 to operate. If it is determined that the arm 6 has been closed, a line connection for voice is made, bidirectional voice transmission and reception are realized, and then the videophone line up to now is disconnected. Then, the controller 100 includes the video information driving unit 3 and the display controller 11
3. Instruct the power management circuit 102 and each module circuit to stop the multimedia processor 106, the video camera unit 11, the camera controller 104, and the memory 105.

Further, for example, when a call is made only by voice and image data is received (called) from the same partner, the arm 6 is opened and the arm sensor switch 10 is opened.
8, when the controller 100 determines that the arm 6 is completely opened, the controller 100
It instructs the power management circuit 102 and each module circuit to activate the video information drive unit 3, display controller 113, multimedia processor 106, video camera unit 11, camera controller 104, and memory 105.

Then, the controller 100 establishes a line connection for a videophone, realizes one-way video reception and two-way audio transmission and reception, and at the same time, uses the video information drive unit 3 to transmit a received image sent from the other party. Display, and then control each module circuit to disconnect the first voice line.

When the videophone is not used even when the arm 6 is open, the controller 100 controls the module circuit for the videophone to be stopped by a button operation from the push button operation unit 7. Can be configured. At this time, when the operation of the videophone is started, the module circuit related to the videophone may be activated by a button operation from the push button operation unit 7.

When video communication is being performed and an image is not being transmitted, that is, when an image is being received, the arm 6 is closed, and the signal from the arm sensor switch 108 causes the controller 100 to operate the arm 6. If it is determined that the connection has been closed, a line connection for voice is performed, bidirectional voice transmission / reception is realized, and then the existing videophone line is disconnected. Then, the controller 100 instructs the power management circuit 102 and each module circuit to stop the video information driving unit 3, the display controller 113, the multimedia processor 106, the video camera unit 11, the camera controller 104, and the memory 105.

As described above, if the operation of the videophone is controlled in accordance with the opening / closing of the arm 6, the power supply to the module circuits other than the function to be used can be stopped or suppressed, and the power consumption can be reduced. The power can be reduced.

As described above, in the portable videophone according to the present invention, when the arm 6 is securely opened and the speaker 9 is brought into contact with the ear in this state, the eyepiece optical system 4c is moved in front of the eyes E of the user. The length from the speaker section 9 to the hinge section 5 of the telephone body 1, the length of the arm 6,
The angle between the arm 6 and the telephone body 1 is determined under ergonomically optimum conditions. Next, a method of determining the various dimensions and the like will be described with reference to FIG.

As shown in FIG. 8, the contact point Pa between the ear and the portable videophone is determined. This contact point is a point at which the user's ear touches the position of the speaker section 9 of the portable videophone.

Next, the center position Pb of the eyepiece portion of the display eyepiece 6a is determined as follows.

The center position Pb of the eyepiece portion of the display eyepiece 6a, which is easy to view humanly, is in a direction where the optical axis is straight forward or inward. In FIG. 8, the optical axis is straight forward. The distance between the eye and the eyepiece portion of the display eyepiece 6a is about 3.5 cm in consideration of the fact that even a user wearing glasses does not touch the glasses.

While the speaker section 9 of the portable videophone is in contact with the ear at the contact point Pa, the portable videophone is rotated about the vertical axis around Pa until the portable videophone contacts the face. The face side of this contact point is Pc, and the portable videophone side is Pd.

A straight line that passes through the center position Pb of the eyepiece and is horizontal and perpendicular to the optical axis is defined as La, and the intersection of the straight line La and the straight line Pa-Pd is defined as Pe. Assuming that the angle between the line connecting both ears and Pa-Pe is α, when Pc = Pd, this is the minimum angle α1 of α in use. Calculated from the average value of Japanese anthropometric data (male 20 to 24 years old), α1 is about 80 degrees

When α = 90 degrees, the distance Pb−Pe is {(interear distance) − (pupil distance)} / 2. When calculated from the average value of the human body measurement data of Japanese (male 20 to 24 years old), it is 40.3 mm. However, α is determined as follows in consideration of the ease of use of glasses and human optics.

Α in consideration of not interfering with the glasses is α2
Then, α ≧ α2 during use. Based on the above-mentioned human body measurement data of Japanese, α2 is approximately 85 degrees.

It is possible to increase α by increasing the length of the eyepiece. However, since the ergonomically closed posture of the elbow is more stable and easier to hold the camera, it is easier to hold α. Is set to α3 = 90 degrees as the upper limit value. Therefore, α may be selected so that α1 ≦ α ≦ α3.

When α = 90 degrees, the distance Pa−Pe is a value obtained by adding a distance of 35 mm between the eye and the eyepiece to (the distance between the ear and the eye) in the average value of the human body measurement data of the Japanese. . Therefore, when α = 90 degrees, the distance Pa−Pe
Is 139 mm.

When α = α2 = 85 degrees, the distance Pb−Pe
= 40.3-139 / tanα, and the distance Pb-Pe
= 40.3-139 / 11.43 / 28.1 (mm).

Distance Pa−Pe = 139 / sin α = 13
9 / 0.996 = 139.5 mm.

The position of the hinge 5 depends on the opening / closing angle of the arm 6,
Display eyepiece 6a of main body when arm 6 is closed
Affects the size of the storage part. For example, if the hinge 5 is brought closer to the speaker unit 9, the length of the main body when the arm 6 is closed can be shortened, but the rotation angle becomes large, and the tip of the display eyepiece 6a when closed is closed. The user approaches the speaker unit 9. Conversely, if the hinge 5 is moved away from the speaker 9, the length of the main body when the arm 6 is closed becomes longer, and the tip of the display eyepiece 6 a when closed is moved away from the speaker 9.

In this embodiment, even when the arm 6 is closed, the push button operating section 7
It is more convenient to provide a space that can be used.
The shorter the telephone body 1 is, the smaller the size is.

In consideration of miniaturization when the hinge 5 is closed, the minimum value of the distance of the eyepiece from the optical axis is P.
The minimum value of b−Pe + β and the distance of the speaker unit 9 from the position Pa is the distance from Pa to the eyeglass bending part.

Here, β is the sum of the distance from Pe to the surface of the main body and the distance from the surface of the main body to the hinge 5, and is related to the thickness of the main body. Here, it is about 11.9 mm, the minimum value of the distance from the optical axis of the eyepiece to the hinge 5 is 40 mm, and the minimum value of the distance from the position Pa of the speaker 9 to the hinge 5 is the size of standard glasses. From about 120 mm.

The maximum value of each of the above distances is set to 60 mm in consideration of the thickness of the main body, and the maximum value of the distance from the optical axis of the eyepiece to the hinge 5 is set. The maximum value of the distance to was set to 150 mm in consideration of the thickness of the eyepiece.

Accordingly, the ratio of the length from the position of the speaker 9 to the position of the hinge 5 of the telephone and the length from the optical axis of the eyepiece to the hinge 5 is in the range of 2: 1 to 15: 4.

In this embodiment, the length from the position of the speaker 9 to the position of the hinge 5 of the telephone is set to 135 mm, and the length from the optical axis of the eyepiece to the hinge 5 is set to 52 mm.

The dimensions of each part described above are calculated from the average value of the human body measurement data of Japanese (male 20 to 24 years old). The length of the arm 6 and the position of the hinge 5 may be set according to the above-described ratio based on the length of the main body 1.

[0082]

As described above, according to the present invention, the image forming optical system is configured to be separated into the optical system for the image information driving unit and the optical system for the eyepiece unit via the folding unit. Accordingly, only the eyepiece-side optical system can be positioned in front of the user's eyes, and the video information driving unit can be arranged at a position lateral to or behind the eyes. The configuration can be reduced, and the size of the eyepiece of the portable videophone can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram showing a first embodiment of a portable videophone according to the present invention.

FIG. 2 is a perspective view showing a first embodiment of the portable videophone according to the present invention, with an arm opened.

FIG. 3 is a front view of the portable videophone according to the first embodiment of the present invention in a state in which an arm is closed.

FIG. 4 is a rear view showing the first embodiment of the portable videophone according to the present invention.

FIG. 5 is a side view of the portable videophone according to the first embodiment of the present invention, with an arm opened.

FIG. 6 is a schematic cross-sectional view showing a mounted state of a video camera unit of the portable videophone according to the present invention.

FIG. 7 is a block circuit diagram of a portable videophone according to the present invention.

FIG. 8 is a top view showing the relationship between the user of the portable videophone according to the present invention and the device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Telephone main body 2 Virtual image optical display device 3 Image information drive part 4 Image formation optical system 4a Image information drive part side optical system 4b Folding part 4c Eyepiece part side optical system 5 Hinge 6 Arm 6a Display eyepiece 7 Push button operation part Reference Signs List 8 liquid crystal display section 9 speaker section 10 microphone section 11 video camera section E eyes L1 to L5 Lens group C External exposure space

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G03B 19/02 G03B 19/02 5C064 H04M 1/21 H04M 1/21 Z 5K023 H04N 5/225 H04N 5/225 Z 7/14 7/14 F term (reference) 2H018 AA00 AA32 BE01 BE04 2H054 AA00 AA01 BB11 CD00 CD03 2H100 AA11 AA31 AA32 AA33 AA61 BB05 BB06 BB09 CC01 CC07 DD08 DD09 2H101 BB02 BB04 5C022 ACA3AC23 AC67 AC77 5C064 AA01 AB04 AC02 AC06 AC12 AC16 AD01 AD08 AD14 5K023 AA07 BB03 DD06 LL06

Claims (3)

[Claims] 1. A telephone main body having a wireless transmission / reception function of video and audio, and a virtual image optical display device for forming a virtual image on a retina of a user's eye from a video information driving unit through an imaging optical system from a video information driving unit. In the portable videophone provided, the imaging optical system of the virtual image optical display device is separated into a video information drive unit side optical system and an eyepiece unit optical system via a folding unit, and can be folded on the telephone body. The eyepiece-side optical system is mounted on an arm provided in the camera body, and the image information drive unit-side optical system and the video information drive unit are mounted in the telephone body, and the eyepiece when the arm is opened. A portable videophone, wherein the video camera unit is arranged on the telephone body such that the side optical system and the shooting direction of the video camera unit are parallel or substantially parallel. 2. The portable videophone according to claim 1, wherein said video camera unit is rotatably attached to a telephone body. 3. The portable videophone according to claim 1, further comprising means for detecting the open / closed state of the arm, wherein at least the drive of the video information drive unit is controlled in accordance with the open / closed state of the arm.