JP2005275126A - Multi-directional photographing system and method of mobile terminal equipment with camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable photographing in many directions while suppressing enlargement of a mounting space and the increase of cost. <P>SOLUTION: A multi-directional photographing system of mobile terminal equipment with a camera is provided with; a camera unit 110 which is in an enclosure of a mobile terminal 100 and has a lens 111 for imaging light from a subject 200, a light reception part 112 for receiving imaged light to convert it to a digital electric signal, and a turntable 113 having the lens and the light reception part placed thereon and rotating with a vertical axis of the mobile terminal as the axis of rotation; a front-side liquid crystal panel 121 which transmits or doesn't transmit light in the front side of the mobile terminal; a rear-side liquid crystal panel 122 which transmits or doesn't transmit light in the rear side of the mobile terminal; an image processing part 115 for performing image processing of the digital electric signal from the light reception part; a liquid crystal control part 123 which controls rotation of the turntable on the basis of an indication from a keyboard 151 so as to turn the lens toward the front side or the rear side and makes one of the front-side liquid crystal panel and the rear-side liquid crystal panel, which the lens is turned toward, transparent and makes the other non-transparent; and a camera control part 114. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a camera-equipped mobile terminal device including a mobile phone. In particular, the present invention relates to a multidirectional imaging system and method for a mobile terminal device with a camera that enables multidirectional imaging.

In recent years, a mobile phone has a built-in camera function, and a camera is generally provided on the back side opposite to the liquid crystal display unit.
In this case, when photographing the photographer himself with the camera function built in the cellular phone, it is necessary to rotate the cellular phone body 180 degrees so that the camera on the back side faces the photographer himself. There is a problem that the rotation of the main body is troublesome. In this case, there is a problem that it is necessary to mount a finder such as a mirror or a sub display so that the subject can be confirmed on the back side.

In order to avoid this problem, it is necessary to add a camera on the front side on the same side as the liquid crystal display unit and mount two cameras on one mobile phone. In this way, it is possible to shoot in the two directions of the front side and the back side without rotating the mobile phone by switching between the two cameras.
However, as described above, the additional mounting of the camera has a problem of increasing the mounting space and increasing the cost.

For this reason, in this invention, there exists a subject of making it possible to image | photograph two directions, the front side and a back side, with one camera.
In addition, it may be troublesome for the photographer holding the mobile phone to change the direction or the direction of the hand holding the mobile phone to change the shooting direction. If the shooting direction is changed by changing the position, the displayed screen is tilted without facing the front of the photographer, which makes it difficult to see the screen.

For this reason, there is a problem that it is not only possible to shoot in the two directions of the front side and the rear side with one camera, but also to be able to shoot in any shooting direction, that is, multi-directional shooting without changing the orientation of the mobile phone. .
In relation to the problems and problems described above, there are the following as conventional techniques capable of photographing in two directions on the front side and the back side with one camera.

  Conventionally, in order to provide a camera-equipped mobile phone that has a zooming mechanism using an optical zoom and can easily perform shooting regardless of the shooting direction, a shooting lens and a plurality of zooms are provided in an antenna provided on the side of the operation unit. A zooming mechanism using an optical zoom equipped with a lens and an image sensor are provided side by side, a rotatable rotating plate is provided between the liquid crystal monitor unit and the hinge unit, and the liquid crystal monitor unit is 0 degrees with respect to the hinge unit. Can be rotated at an angle of 360 degrees from the angle, and a free stop can be performed at a desired angle by a friction function (for example, see Patent Document 1).

In Patent Document 1, the liquid crystal monitor unit is rotated with respect to one camera and the photographing result is displayed on the liquid crystal monitor unit. However, the liquid crystal monitor unit is rotated in the same manner as described above. There is a problem of annoying.
In addition, in a conventional video camera mobile phone that can be used as a video camera and a video phone, when the video camera mobile phone is used as a hands-free mobile video phone in order to eliminate the need for image upside down processing. When the camera / receiver unit is used as a video camera with the front of the video camera unit facing the front of the main unit, the camera / receiver unit is rotated 180 degrees so that the front of the video camera unit is Since there is no change in the vertical relationship of the video camera when it is used as a portable video phone or a video camera toward the back side, there is a case where the vertical inversion processing of the image signal is unnecessary (for example, Patent Documents) 2).

In Patent Document 2 described above, forming the rotating structure of the video camera outside the mobile phone has a problem that the structure of the mobile phone is complicated, and the shooting direction is fixed in two directions, the front side and the back side. Therefore, it is impossible to solve the problem of the present invention in which it is desired to enable multi-directional shooting in any shooting direction without changing the orientation of the mobile phone.
Conventionally, in a mobile phone or the like equipped with a camera for shooting, a display unit capable of displaying information and an optical unit so that a captured image can be confirmed on the display unit while reducing the size and simplification. In a portable information terminal comprising a camera unit including an image pickup device and a housing, a first lens is provided on the front side of the housing and a second lens is provided on the back side, and a reflection mirror is rotatably provided between them. By switching the direction of the reflecting mirror, the shooting direction can be switched between the front side and the back side, so that even if the subject on either the front side or the back side of the housing is shot, the captured image is displayed on the display unit. In addition, by adopting a reflection mirror, an optical unit, an image pickup device, and the like can be arranged inside the housing, and collision with the outside, damage, and the like can be prevented (for example, see Patent Document 3). ).

  In the above-mentioned Patent Document 3, there is a problem that a space for installing a light guide member called a reflection mirror is required because the imaging direction of the front side and the back side is switched by turning the reflection mirror inside the casing of the portable information terminal. Furthermore, since the shooting direction is fixed in the two directions of the front side and the back side, the problem of the present invention in which it is desired to enable multi-directional shooting in any shooting direction without changing the orientation of the portable information terminal cannot be solved.

  Conventionally, in a mobile phone with a camera having a plurality of shooting directions, display means for displaying an image is arranged in a casing provided with an electronic camera in order to switch the shooting direction without moving the trending means. A first photographing window disposed on the surface, a second photographing window disposed on the back surface thereof, a first optical path fixed from the first photographing window to the electronic camera, and a second photographing. And a light guide means that also forms a second optical path from the window to the electronic camera, and the other photographing is performed by blocking one of the input light from the first photographing window and the second photographing window. There is an apparatus that images input light from a window on an electronic camera (for example, see Patent Document 4).

  In the above-mentioned Patent Document 4, a prism that is fixed to the casing of a mobile phone and forms a first optical path from the first imaging window to the electronic camera and a second optical path from the second imaging window to the electronic camera together. There is a problem that a space for installing the light guide means to be formed is required, and further, one of the input light from the first photographing window and the second photographing window is shielded to block the other photographing window. Because the input light from the camera is imaged on the electronic camera, the shooting direction is fixed in two directions, so that it is desirable to enable multi-directional shooting in any shooting direction without changing the orientation of the mobile phone. It cannot be solved.

  In addition, when a portable terminal such as a portable information terminal or a portable telephone with a built-in camera is made to change the orientation of the camera, a cable is provided from the movable mount provided with a lens and an image sensor to the body housing. The mount part is equipped with a camera because it was necessary to pull out the wiring or to make the mount for switching the lens large, and the structure was complicated and it was impossible to shoot a stable subject image. A light guide means for emitting an image of a subject incident through a lens into the housing is provided inside the housing of the mobile terminal so as to be rotatable. There is a configuration in which the image is emitted so as to be rotatable about a central axis in the direction of emission of a subject image emitted toward the inside of the housing to which the image sensor is attached (for example, a special feature). Literature reference 5).

  In the above-mentioned Patent Document 5, the mount portion that is rotatably attached to the casing of the mobile terminal is provided with a lens inside, and light guide means for guiding the image of the subject is provided. Although it is possible to shoot in multiple directions in any shooting direction without changing, there is a problem that the structure of the mobile terminal becomes complicated if the rotating structure is formed outside the mobile terminal, and light guiding means is installed. There is a problem that a space is required.

  That is, in general, mobile phones are required to be smaller and lighter for the purpose of carrying them, so it is difficult to incorporate a camera that can cope with various situations while maintaining the size and weight. It can be said.

JP 2003-309632 A JP 2001-245267 A Japanese Patent Laid-Open No. 2003-091041 JP 2001-223924 A JP 2003-219232 A

  Therefore, in view of the above problems and problems, the present invention provides a multi-directional shooting system for a camera-equipped mobile terminal device that enables multi-directional shooting while suppressing an increase in mounting space and cost increase of the camera-equipped mobile terminal device. It aims to provide a method.

  In order to solve the above problems, in the multidirectional photographing system for a portable terminal device with a camera, the present invention provides a lens that forms an image of light from a subject in the casing of the portable terminal device, and an imaged light. A camera unit having a light receiving unit for converting into a receiving digital electric signal, a rotating base that mounts the lens and the light receiving unit and rotates about a vertical axis of the mobile terminal device, and a front side of the mobile terminal device A front-side liquid crystal panel that transmits and does not transmit light to the camera unit, and a back-side liquid crystal panel that is positioned on the back side of the mobile terminal device and transmits and does not transmit light to the camera unit And when the lens of the camera unit is located on the front side of the portable terminal device, the front side liquid crystal panel is transmissive and the back side liquid crystal panel is non-transmissive, When the screen is located on the back side of the portable terminal device, the liquid crystal control unit that transmits the back side liquid crystal panel and does not transmit the front side liquid crystal panel, and the digital electric signal from the light receiving unit of the camera unit An image processing unit to be processed, a front-side display that is located on the front side of the portable terminal device and displays an image processed by the image processing unit, and the portable terminal device based on an instruction from a keyboard of the portable terminal device The rotation of the turntable is controlled so that the lens of the camera unit is directed to the front side or the back side, and the side facing the lens of the front side liquid crystal panel and the rear side liquid crystal panel is made transparent, and the lens is opposite And a camera control unit that controls the liquid crystal control unit so as to make the side non-transparent. To provide.

Further, when the camera control unit is instructed to continuously rotate the camera unit clockwise or counterclockwise from the keyboard of the mobile terminal device, the camera control unit is configured to rotate the rotating table continuously clockwise or counterclockwise. Control.
Further, the camera control unit has a function of adjusting the shutter speed of the camera unit, and when there is an instruction for panoramic photography from the keyboard of the mobile terminal device, the camera unit rotates the turntable of the camera unit, Reduce the shutter speed.

Furthermore, the camera control unit rotates the camera unit when the camera unit and the image processing unit have a function of capturing a moving image, and when there is an instruction to record a moving image from the keyboard of the mobile terminal device. While shooting video.
Further, the liquid crystal control unit makes both the front side liquid crystal panel and the rear side liquid crystal panel impermeable when the camera unit is not used.

  Further, when the camera unit is positioned on one side of the left and right ends of the mobile terminal device, the camera unit is positioned on one end of the left and right ends of the mobile terminal device, and transmits and does not transmit light to the camera unit. A side-side liquid crystal panel is provided, and when the lens of the camera unit is in a position facing the side-side liquid crystal panel, the side-side liquid crystal panel is transparent, and the lens of the camera unit is attached to the side-side liquid crystal panel. When it is not in the facing position, the side liquid crystal panel becomes non-transmissive.

Furthermore, a protruding portion is provided at the top of the portable terminal device, the camera unit is provided in a housing of the protruding portion, and the protruding portion is provided on the front side, the back side, the left side, and the right side of the portable terminal device. A front side liquid crystal panel that transmits and does not transmit light to the camera unit, a rear side liquid crystal panel, a left side liquid crystal panel, and a right side liquid crystal panel are provided, and the liquid crystal control unit includes the front side liquid crystal panel, Of the rear side liquid crystal panel, the left side liquid crystal panel, and the right side liquid crystal panel, the one that is in the position where the lens of the camera unit faces is transmissive, and the one that is not in the position where the lens of the camera unit is facing is non-transmissive. Control is performed as follows.
Furthermore, when the portable terminal device is folded into an upper part and a lower part with a foldable mobile phone, an antenna is provided on the lower part.

Further, the rotary base of the camera unit is further provided with a horizontal axis along the side surface of the mobile phone as a rotation axis, and the camera control unit is configured to turn the camera unit in response to an upward or downward rotation instruction from the keyboard. The lens is rotated so that the lens faces downward or upward with respect to the front side liquid crystal panel or the rear side liquid crystal panel.
Further, a first auxiliary lens is added to the front side liquid crystal panel side and overlapped with the lens, and a second auxiliary lens is added to the back side liquid crystal panel side and overlapped with the lens, One of the auxiliary lens and the second auxiliary lens is a lens that is in focus at a short distance, and the other is a lens that is in focus at a long distance.

  Furthermore, the present invention relates to a multi-directional shooting method for a mobile terminal device with a camera, the step of taking light into the housing of the mobile terminal device from an arbitrary shooting direction on the front side or the back side of the mobile terminal device; A step of forming an image of light captured from an arbitrary photographing direction on the front side or the back side of the portable terminal device in a casing of the terminal device, a step of converting the formed light into a digital electrical signal, There is provided a multidirectional imaging method for a camera-equipped mobile terminal device, comprising: a step of image-processing a signal; and a step of displaying an image-processed image on a front side of the mobile terminal device.

As described above, according to the present invention, it is possible to shoot on either the back side or the front side with one camera, and at the same time, space saving and low cost can be realized as compared with the example of mounting two cameras. There is an effect that can be done.
In addition, since the front side display is used regardless of whether the subject is on the back side or the front side of the mobile phone as a finder at the time of shooting, the mobile phone body is rotated 180 degrees with a single camera. Compared to the above, there is no need to mount a sub-display or mirror on the back side, and there is an effect that the subject can be confirmed on the front-side display which is a large main display.

In addition, since the lens, the light receiving unit, and the turntable are provided in the case of the mobile phone, the structure is not complicated because the rotation mechanism is not provided outside the case of the mobile phone as described in Patent Document 5 described above. There is an effect.
In addition, since light guide means such as a reflecting mirror and a prism are not used, there is an effect that further space saving and low cost can be realized at the same time.

Furthermore, multi-directional shooting is possible using the rotating mechanism of the camera unit, and a wide range of shooting can be performed while the orientation of the mobile phone is not changed.
Furthermore, a wide range of panoramic photography can be realized, and it can be used for a simple surveillance camera.
Furthermore, by using the auxiliary lens, it is possible to realize photographing with two focal points with one camera.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front / rear view showing a schematic appearance of a multi-directional photographing system for a camera-equipped cellular phone according to the present invention.
A mobile phone will be described as an example of the mobile terminal device. As shown in the figure, the mobile phone 100 includes an upper part 101 and a lower part 102. As shown in FIG. 5A, a keyboard 151 is mainly disposed on the lower side portion 102 of the front surface of the mobile phone 100, and the keyboard 151 has a function of operating the mobile phone 100.

A front-side display 131 is provided on the upper portion 101 of the front surface of the mobile phone 100, and the front-side display 131 has a function of displaying various information and an image photographed by a camera unit 110 described later.
A camera unit 110 is arranged inside the casing of the mobile phone 100 in the upper part 101 of the front display 131, and the camera unit 110 is a single camera having a rotation mechanism.

A front camera window 141 is provided in the housing of the mobile phone 100 in the position of the camera unit 110, and the front camera window 141 allows light from the subject to pass through.
A front-side liquid crystal panel 121 is provided in the front camera window 141, and the front-side liquid crystal panel 121 has a function of transmitting and non-transmitting light passing through the front camera window 141.
As shown in this figure (b), the back side display 132 is provided in the upper part 101 of the back surface of the mobile phone 100, and the back side display 132 is used as an auxiliary in the sub display of the front side display 131. It has a function to display. The rear display 132 has a display area smaller than that of the front display 131, and unlike the front display 131, does not have a function of displaying an image photographed by the camera unit 110.

A rear camera window 142 is provided in the housing of the mobile phone 100 at the position of the camera unit 110, and the rear camera window 142 allows light from the subject to pass through.
The rear camera window 142 is provided with a rear liquid crystal panel 122, and the rear liquid crystal panel 122 has a function of transmitting and not transmitting light passing through the rear camera window 142.
FIG. 2 is a side sectional view showing a schematic structure of the multidirectional photographing system for the camera-equipped mobile phone in FIG.

  As shown in the figure, the camera unit 110 includes a lens 111, a light receiving unit 112, and a turntable 113. The lens 111 forms an image of light from the subject 200 on the light receiving unit 112, and the light receiving unit 112 converts the imaged light into an electric signal and digitizes it. The turntable 113 includes a lens 111 and a light receiving unit 112, and rotates about the vertical axis of the mobile phone 100 as a rotation axis so that the lens 111 can be directed to either the front side liquid crystal panel 121 or the rear side liquid crystal panel 122. To do.

As shown in FIG. 5A, when the subject 200 is on the front side of the mobile phone 100, the camera unit 110 rotates and the lens 111 faces the subject 200, that is, the lens 111 is on the front side liquid crystal panel 121. When it is in a position facing the front, the front side liquid crystal panel 121 is transmissive and the back side liquid crystal panel 122 is non-transmissive.
Conversely, as shown in FIG. 5B, when the subject 200 is on the back side of the mobile phone 100, the camera unit 110 rotates and the lens 111 faces the subject 200, that is, the lens 111 is on the back side. When it is at a position facing the liquid crystal panel 122, the back side liquid crystal panel 122 is transmissive and the front side liquid crystal panel 121 is non-transmissive.

FIG. 3 is a block diagram showing a schematic configuration for explaining the operation of the multi-directional photographing system of the camera-equipped mobile terminal device in FIGS.
As shown in the figure, an image processing unit 115 is connected to the light receiving unit 112 of the camera unit 110, and the image processing unit 115 performs image processing on the electric signal converted from the light received by the light receiving unit 112 and digitized. Displayed on the side display 131.

A liquid crystal control unit 123 is connected to the front side liquid crystal panel 121 and the back side liquid crystal panel 122, and the liquid crystal control unit 123 controls transmission and non-transmission of the front side liquid crystal panel 121 and the back side liquid crystal panel 122.
Further, a camera control unit 114 is provided in the multidirectional imaging system of the camera-equipped mobile terminal device, and the camera control unit 114 controls the turntable 113, the image processing unit 115, and the liquid crystal control unit 123 of the camera unit 110.

  More specifically, when the camera controller 110 is instructed to invert the camera unit 110 from the keyboard 151, the camera control unit 114, when the subject 200 is in front of the mobile phone 100, receives the front side liquid crystal panel via the liquid crystal control unit 123. 121 is made transparent, the back side liquid crystal panel 122 is made non-transmissive, and the turntable 113 of the camera unit 110 is rotated so that the lens 111 faces the front side liquid crystal panel 121. Accordingly, it is possible to perform front-side shooting, that is, shooting with the photographer himself as the subject 200.

  In other words, the light from the subject 200 passes through the front liquid crystal panel 121 and the lens 111 and is digitized by the light receiving unit 112. The digital electric signal converted by the light receiving unit 112 is processed by the image processing unit 115 and displayed on the front display 131. The photographer can take a picture while checking the subject 200 using the front display 131 as a viewfinder.

  Similarly, when there is an instruction to reverse the camera unit 110 from the keyboard 151, the camera control unit 114, when the subject 200 is on the back of the mobile phone 100, via the liquid crystal control unit 123, the back side liquid crystal panel 122. Is made transparent, the front side liquid crystal panel 121 is made non-transmissive, and the turntable 113 of the camera unit 110 is rotated so that the lens 111 faces the rear side liquid crystal panel 122. As a result, it is possible to shoot on the back side, that is, shoot with the subject 200 around the mobile phone 100.

  In other words, the light from the subject 200 passes through the back side liquid crystal panel 122 and the lens 111 and is digitized by the light receiving unit 112. The digital electric signal converted by the light receiving unit 112 is processed by the image processing unit 115 and displayed on the front display 131. The photographer can take a picture while checking the subject 200 using the front display 131 as a viewfinder.

When the camera is not used, the front-side liquid crystal panel 121 and the rear-side liquid crystal panel 122 are made non-transmissive so that the camera can serve as a cover for hiding the camera. This can prevent malfunction.
In this way, according to the present invention, it is possible to shoot on either the back side or the front side with one camera, and space saving and low cost can be realized at the same time as compared with an example in which two cameras are mounted. There is an effect.

  Further, since the front-side display 131 is used regardless of whether the subject 200 is on the back side or the front side of the mobile phone 100 as a viewfinder at the time of shooting, the mobile phone 100 main body is rotated 180 degrees with one camera. Compared to the example of photographing, there is no need to mount a sub-display or a mirror on the back side, and there is an effect that the subject 200 can be confirmed on the front-side display 131 which is a large main display.

In addition, since the lens 111, the light receiving unit 112, and the turntable 113 are provided in the casing of the mobile phone 100, a rotation mechanism is not provided outside the casing of the mobile phone 100 as described in Patent Document 5 described above. There is an effect that the structure is not complicated.
In addition, since light guide means such as a reflecting mirror and a prism are not used, there is an effect that further space saving and low cost can be realized at the same time.

  Furthermore, multi-directional shooting is possible using the rotating mechanism of the camera unit, and a wide range of shooting can be performed with the mobile phone fixed. This point will be described in detail below with further examples.

FIG. 4 is a flowchart for explaining an example of rotation adjustment of the photographing direction by the camera control unit 114 of FIG.
As shown in this figure, in step S301, the camera control unit 114 determines whether or not there is an instruction to set the subject 200 on the front side of the mobile phone 100 from the keyboard 151, and there is no setting instruction on the front side. Then, the process proceeds to step S307.

If there is a setting instruction on the front side in step S302, the camera control unit 114 sets the front side liquid crystal panel 121 to be transmissive and the rear side liquid crystal panel 122 to be non-transmissive.
In step S303, the camera control unit 114 determines whether there is a continuous right rotation instruction from the keyboard 151. If there is no continuous right rotation instruction, the process proceeds to step S305.

In step S304, if there is a continuous right rotation instruction, the camera control unit 114 continuously rotates the turntable 113 to the right, returns to step S301, whether or not the setting instruction has been changed to the front side, and the continuous right in step S303. It is determined whether or not the rotation instruction has been changed. If there is no change, the operation is continued.
In step S305, the camera control unit 114 determines whether there is a continuous left rotation instruction from the keyboard 151. If there is no continuous left rotation instruction, the process ends.

In step S306, if there is a continuous left rotation instruction, the camera control unit 114 continuously rotates the turntable 113 to the left, returns to step S301, whether or not the setting instruction is changed to the front side, and continuous right rotation in step S303. It is determined whether or not the instruction has been changed and whether or not the continuous left rotation instruction has been changed in step S305. If there is no change, the operation is continued.
In step S307, the camera control unit 114 determines whether or not there is a setting instruction for the subject 200 on the back side of the mobile phone 100 from the keyboard 151. If there is no setting instruction for the back side, the process ends.

In step S308, if there is a setting instruction on the rear side, the camera control unit 114 sets the rear side liquid crystal panel 122 to be transmissive and the front side liquid crystal panel 121 to be non-transmissive, and the process proceeds to step S303. A rotation instruction is determined, and the continuous rotation of the turntable 113 is controlled.
In this way, when the subject 200 is on the front side or the back side and the shooting direction needs to be changed, the shooting direction is changed by rotating the turntable 113 while the mobile phone 100 is not rotated and fixed. As a result, an image with a different shooting direction is displayed without tilting the screen of the front-side display 131 while the screen of the front-side display 131 facing the photographer is fixed to the front. This makes it easier to see the image.

  In other words, in order to change the shooting direction, the photographer needs to operate the keyboard 151, but the photographer himself holding the mobile phone 100 changes the direction or the direction of the hand holding the mobile phone 100. There is no need to change the camera, and the photographer is not bothered.

  Further, when the camera unit 110 has a function of adjusting the shutter speed, and there is an instruction for panoramic photography from the keyboard 151, the camera control unit 114 slows down the shutter speed while rotating the camera unit 110. As a result, a wide range of panoramic photography can be realized.

  Further, when the camera unit 110 and the image processing unit 115 have a function of shooting a moving image, when there is a moving image shooting instruction from the keyboard 151, the camera control unit 114 causes the camera unit 110 to rotate while shooting the moving image. do. Thereby, it can also be used for a purpose such as a simple monitoring camera.

FIG. 5 is a first modification of FIG. 1 and is a front / rear / side view showing a schematic appearance of a multi-directional photographing system for a camera-equipped mobile phone according to the present invention.
As shown in this figure, compared with FIG. 1, the left side camera window 143 is further provided in the housing of the mobile phone 100 at the position of the camera unit 110 on the side surface, and the side camera window 143 is light from the subject. Pass through.

Further, the side camera window 143 is provided with a side liquid crystal panel 124, and the left side liquid crystal panel 124 has a function of transmitting and not transmitting light passing through the side camera window 143. When the lens 111 of 110 is in a position facing the side liquid crystal panel 124, the side liquid crystal panel 124 is transparent, and when the lens 111 of the camera unit 110 is not in a position facing the side liquid crystal panel 124, The liquid crystal panel 124 is controlled to be non-transmissive.
In this way, the shooting direction can be changed in a wider range.

FIG. 6 shows a second modification of FIG. 1 and is a front / rear / side view showing a schematic appearance of a multi-directional photographing system for a camera-equipped mobile phone according to the present invention.
As shown in this figure, the camera unit 110 is provided in a housing protruding above the upper portion 101 of the mobile phone 100 as compared to FIG. A front side liquid crystal panel 121 is provided on the front side of the mobile phone 100 of the camera unit 110, a rear side liquid crystal panel 122 is provided on the back side, a left side liquid crystal panel 125 is provided on the left side, and a right side liquid crystal panel 126 is provided on the right side. The control unit 123 controls transmission and non-transmission functions of the front side liquid crystal panel 121, the back side liquid crystal panel 122, the left side liquid crystal panel 125, and the right side liquid crystal panel 126.

  That is, when the lens 111 of the camera unit 110 is in a position facing the left side liquid crystal panel 125, the left side liquid crystal panel 125 is transmissive, and the lens 111 of the camera unit 110 is not in a position facing the left side liquid crystal panel 125. When the lens 111 of the camera unit 110 is in a position facing the right side liquid crystal panel 126, the right side liquid crystal panel 126 is transmissive and the lens 111 of the camera unit 110 is not transmitted. When the right side liquid crystal panel 126 is not in a position facing the right side liquid crystal panel 126, the right side liquid crystal panel 126 is non-transmissive.

In the case where the mobile phone is of a folding type in which the upper side portion 101 and the lower side portion 102 are folded, an antenna is provided on the lower side portion 102 so as not to interfere with photographing.
In this way, the shooting direction can be changed in a wider range.

FIG. 7 is a third modification of FIG. 1, and is a side sectional view showing a schematic structure of a multidirectional photographing system for a camera-equipped mobile phone according to the present invention.
As shown in this figure, as compared with FIG. 1, the turntable 113 further rotates the camera unit 110 about the horizontal axis along the side surface of the mobile phone 100 as the rotation axis, and the camera control unit 114 is connected to the keyboard 151. In response to an upward or downward rotation instruction, the lens 111 is directed downward with respect to the front side liquid crystal panel 121 or the rear side liquid crystal panel 122 as shown in FIG. , Do control upwards.
In this way, the shooting direction can be changed in a wider range.

FIG. 8 is a side sectional view showing a schematic structure of a multidirectional photographing system for a camera-equipped mobile phone according to the present invention, which is a fourth modification of FIG.
As shown in this figure, compared with FIG. 1, an auxiliary lens 116 is added on the front side liquid crystal panel 121 side and superimposed on the lens 111, and further, the focal point is different from that of the auxiliary lens 116 on the back side liquid crystal panel 122 side. An auxiliary lens 117 may be added and overlapped with the lens 111 so that cameras with different focal points on the front side and the back side of the mobile phone 100 may be used properly.

  For example, the auxiliary lens 116 is a lens that focuses on a short distance, and the auxiliary lens 117 is a lens that focuses on a long distance. In this way, it is possible to realize shooting with two focal points with one camera.

  The mobile phone has been described above, but the present invention can be similarly applied to a PDA (personal digital assistant).

1 is a front / rear view showing a schematic appearance of a multi-directional photographing system for a camera-equipped mobile phone according to the present invention. It is a sectional side view which shows schematic structure of the multidirectional imaging | photography system of the mobile phone with a camera in FIG. It is a block diagram which shows schematic structure explaining the operation | movement of the multidirectional imaging | photography system of the portable terminal device with a camera in FIG. 1, FIG. 4 is a flowchart for explaining an example of rotation adjustment of a shooting direction by the camera control unit 114 of FIG. 3. It is the 1st modification in FIG. 1, and is the front / back / side view which shows the general | schematic external appearance of the multi-directional imaging | photography system of the mobile phone with a camera which concerns on this invention. FIG. 9 is a front / back / side view showing a schematic external appearance of a multi-directional imaging system for a camera-equipped mobile phone according to the present invention, which is a second modification in FIG. 1. FIG. 7 is a side sectional view showing a schematic structure of a multi-directional photographing system for a camera-equipped mobile phone according to the present invention, which is a third modification in FIG. 1. FIG. 6 is a side sectional view showing a schematic structure of a multi-directional photographing system for a camera-equipped mobile phone according to the present invention, which is a fourth modification in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Mobile telephone 101 ... Upper part 102 ... Lower side part 110 ... Camera unit 111 ... Lens 116, 117 ... Auxiliary lens 112 ... Light receiving part 113 ... Turntable 114 ... Camera control part 115 ... Image processing part 121 ... Front side liquid crystal panel 122 ... Back side liquid crystal panel 123 ... Liquid crystal controller 124 ... Side side liquid crystal panel 125 ... Left side liquid crystal panel 126 ... Right side liquid crystal panel 131 ... Front side display 132 ... Back side display 141 ... Front camera window 142 ... Back camera window 143 ... Side camera window 151 ... Keyboard 200 ... Subject

Claims (11)

In a multi-directional shooting system for a mobile terminal device with a camera,
In the casing of the portable terminal device, a lens that forms an image of light from a subject, a light receiving unit that receives the imaged light and converts it into a digital electrical signal, and the portable terminal device mounted with the lens and the light receiving unit A camera unit having a turntable that rotates about the vertical axis of
A front-side liquid crystal panel that is located on the front side of the portable terminal device and transmits and does not transmit light to the camera unit;
A rear-side liquid crystal panel that is located on the back side of the mobile terminal device and transmits and does not transmit light to the camera unit;
When the lens of the camera unit is located on the front side of the mobile terminal device, the front side liquid crystal panel is transmissive and the back side liquid crystal panel is not transmissive, and the camera unit lens is on the back side of the mobile terminal device. A liquid crystal control unit that transmits the back side liquid crystal panel and does not transmit the front side liquid crystal panel;
An image processing unit that performs image processing on a digital electrical signal from the light receiving unit of the camera unit;
A front display that is located on the front side of the mobile terminal device and displays an image processed by the image processing unit;
Based on an instruction from the keyboard of the mobile terminal device, the rotation of the turntable is controlled so that the lens of the camera unit is directed to the front side or the back side of the mobile terminal device, and the front side liquid crystal panel and the back side liquid crystal panel are controlled. A camera control unit for controlling the liquid crystal control unit so that the side facing the lens is transmissive and the opposite side facing the lens is non-transmissive. system. When there is an instruction to continuously rotate the camera unit clockwise or counterclockwise from the keyboard of the mobile terminal device, the camera control unit controls the rotating base to rotate clockwise or continuously counterclockwise. The multi-directional imaging system for a camera-equipped mobile terminal device according to claim 1, wherein: The camera control unit has a function of adjusting the shutter speed of the camera unit, and when there is an instruction for panoramic photography from the keyboard of the mobile terminal device, the camera control unit rotates the turntable of the camera unit, The multi-directional shooting system for a portable terminal device with a camera according to claim 1, wherein the shutter speed is slowed down. When the camera control unit and the image processing unit have a function of capturing a moving image, and when there is an instruction to record a moving image from the keyboard of the mobile terminal device, the camera control unit rotates the camera unit while moving the moving image. The multidirectional imaging system for a mobile terminal device with a camera according to claim 1, wherein imaging is performed. The multi-directional photographing system for a camera-equipped mobile terminal device, wherein the liquid crystal control unit makes both the front side liquid crystal panel and the rear side liquid crystal panel non-transmissive when the camera unit is not used. When the camera unit is positioned on one side of the left and right ends of the mobile terminal device, the side surface is positioned on one end of the left and right ends of the mobile terminal device and transmits and does not transmit light to the camera unit. A side liquid crystal panel is provided, and when the lens of the camera unit is in a position facing the side liquid crystal panel, the side liquid crystal panel is transparent, and the lens of the camera unit is facing the side liquid crystal panel The multi-directional photographing system for a portable terminal device with a camera according to claim 1, wherein the side liquid crystal panel is non-transmissive when not. The mobile terminal device is provided with a protruding portion, the camera unit is provided in a housing of the protruding portion, and the camera is provided on the front side, the back side, the left side, and the right side of the mobile terminal device at the protruding portion. A front-side liquid crystal panel, a rear-side liquid crystal panel, a left-side liquid crystal panel, and a right-side liquid crystal panel that perform light transmission and non-transmission on the unit are provided, and the liquid crystal control unit includes the front-side liquid crystal panel and the rear-side liquid crystal panel. Of the liquid crystal panel, the left side liquid crystal panel, and the right side liquid crystal panel, the one that is in the position where the lens of the camera unit faces is transmissive, and the one that is not in the position where the lens of the camera unit is facing is non-transmissive. The multidirectional imaging system for a mobile terminal device with a camera according to claim 1, wherein the control is performed as described above. 8. The multi-directional camera-equipped mobile terminal device according to claim 7, wherein when the mobile terminal device is folded into an upper part and a lower part in a foldable mobile phone, an antenna is provided on the lower part. Shooting system. The turntable of the camera unit is further provided with a horizontal axis along the side surface of the mobile phone as a rotation axis, and the camera control unit rotates the camera unit in response to an upward or downward rotation instruction from the keyboard. The multi-directional photographing system for a portable terminal device with a camera according to claim 1, wherein the lens is directed downward or upward with respect to the front-side liquid crystal panel or the back-side liquid crystal panel. A first auxiliary lens is added to the front side liquid crystal panel side and overlapped with the lens, and a second auxiliary lens is added to the back side liquid crystal panel side and overlapped with the lens, and the first auxiliary lens is added. 2. The camera-equipped mobile terminal device according to claim 1, wherein one of the second auxiliary lenses is a lens that is in focus at a short distance and the other is a lens that is in focus at a long distance. Multi-directional shooting system. In a multi-directional shooting method for a mobile terminal device with a camera,
Capturing light into the casing of the mobile terminal device from any shooting direction on the front side or back side of the mobile terminal device;
In the housing of the mobile terminal device, imaging the light taken from any shooting direction on the front side or back side of the mobile terminal device;
Receiving the imaged light and converting it into a digital electrical signal;
Image processing of the digital signal;
And a step of displaying an image-processed image on the front side of the mobile terminal device.

Images