JP2007311978A - Mobile phone with camera rotation stopping structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile phone capable of photographing a subject while keeping the subject horizontal and also photographing the subject while adjusting it to an arbitrary angle to a display part screen. <P>SOLUTION: A camera module 5 having a structure which freely rotates on the axis 7 of the optical axis during imaging by the camera module 5 is provided with a structure which arranges the center 8 of gravity of rotation of the camera module 5 below an image photographed by a camera and a structure which controls rotation of the camera module 5 to take a photograph while assisting in prevention against a camera shake of a display section in right-left directions. Further, the structure capable of controlling the rotation of the camera module 5 is provided to take a picture while adjusting the camera module at an arbitrary angle to the display section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a mobile phone or PDA (personal) having a camera unit, a speaker unit, and the like.
The present invention relates to portable terminal devices such as Digital Assistants).

  Conventionally, a camera module attached to a mobile terminal device such as a mobile phone or a PDA (personal digital assistant) is completely fixed to the mobile phone body, or macro shooting is performed by manually operating a SW attached to the camera module. Alternatively, a mechanism is provided that allows the camera to automatically measure the distance to the subject and adjust the position of the lens to achieve focus by using an auto focus function.

On the other hand, various mobile phones and related technologies have been proposed. For example, Japanese Patent Laid-Open Publication No. 2003-264619 (hereinafter referred to as Prior Art Document 1).
According to this prior art document 1, as shown in FIG. 8, a camera is rotatably mounted in the upper half of the mobile phone by a rotating mechanism. The rotation mechanism includes a motor and a gear mechanism, and changes the shooting direction of the camera on the front side and the back side of the mobile phone.

Japanese Patent Laid-Open No. 2004-153503 (hereinafter referred to as Prior Art Document 2)
According to this prior art document 2, in order to provide a camera shake correction function to an image pickup apparatus, a mounting structure is provided in which the image pickup apparatus can be miniaturized and an angular velocity sensor component can be mounted on the image pickup apparatus.
JP 2003-264619 A JP 2004-153503 A

However, the mobile phone described in the prior art document 1 can only change the shooting direction by rotating to the front side and the back side of the housing, and the subject can be moved at any angle with respect to camera shake or display on the display screen at the time of shooting. There is a problem that it is not possible to adjust and shoot.
In addition, when the angular velocity sensor described in Prior Art Document 2 is mounted on a camera module of a mobile phone, it is possible to correct a change in position in two axes (X axis and Y axis) directions perpendicular to the optical axis of the camera module. There is a problem that a person cannot adjust a subject to an arbitrary angle and take a picture. In addition, since a semiconductor integrated circuit for controlling the angular velocity sensor is required and a corresponding mounting area is required, there is a conflict with the recent miniaturization of the camera module or the miniaturization of the mobile phone.

  The present invention has been made in order to solve such a conventional problem, and in a camera module having a structure that is rotatable with respect to the axis of the optical axis during imaging of the camera module, the rotational center of gravity of the camera module is determined. By providing a structure in which the camera is positioned below the captured image and a structure for controlling the rotation of the camera module, it is possible to assist in preventing the camera shake in the horizontal direction with respect to the display unit, It is another object of the present invention to provide a structure capable of controlling the rotation of the camera module so that the camera module can be adjusted to an arbitrary angle with respect to the display unit and photographed.

The mobile phone of the present invention is a camera module having a structure that is rotatable with respect to the axis of the optical axis at the time of imaging of the camera module, and a position that is downward of the image when the camera captures the rotational center of gravity of the camera module. And a structure for controlling the rotation of the camera module.
With this configuration, the photographed image of the camera module is maintained in the horizontal direction during photographing, and the subject can always be photographed horizontally. In addition, the subject can be adjusted to an arbitrary angle and photographed while checking the display unit.

  In the mobile phone of the present invention, the rotational center of gravity structure of the camera module is configured by an electromagnet. With this configuration, the rotation of the camera module can be controlled by the action of the magnet.

  In the mobile phone of the present invention, the rotational center of gravity structure of the camera module is constituted by a magnet. With this configuration, the rotation of the camera module can be controlled by the action of the magnet.

  In the mobile phone of the present invention, the rotational center of gravity structure of the camera module is made of a magnetic material. With this configuration, the rotation of the camera module can be controlled by the action of the magnet.

In the mobile phone of the present invention, a movable portion that operates parallel to the axial direction of the optical axis at the time of imaging by the camera module is provided on the surface opposite to the camera photographing lens of the camera module.
With this configuration, the rotation of the camera module can be controlled.

In the mobile phone of the present invention, the movable part that operates in parallel to the axial direction of the optical axis at the time of imaging of the camera module provided on the surface opposite to the camera photographing lens of the camera module is a magnet, an electromagnet, or a magnetic body. It is made of a material that reacts to
With this configuration, the electromagnet of the camera module and the rotational center of gravity formed on the magnet can be operatively joined to the movable part to control the rotation of the camera module.

In the mobile phone of the present invention, the movable part that operates parallel to the axial direction of the optical axis at the time of imaging of the camera module provided on the surface opposite to the camera photographing lens of the camera module is a cam mechanism or motor A structure that rotates at an arbitrary angle is formed.
With this configuration, the photographer can adjust the subject to an arbitrary angle and photograph while confirming the display unit.

The present invention relates to a camera module having a structure that is rotatable with respect to the axis of the optical axis at the time of imaging by the camera module, and a structure in which the rotational center of gravity of the camera module is arranged below the image captured by the camera. By providing a structure that controls the rotation of the module, the captured image of the camera module always maintains the horizontal direction with respect to the subject, helps to prevent camera shake in the horizontal direction of the display screen, and the image on the display unit Even when displayed obliquely, the data as an image has an effect of being photographed horizontally with respect to the display unit. In addition, the subject can be adjusted to an arbitrary angle while photographing while confirming the display portion, and there is an effect that photographing with entertainment can be performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, the mobile phone 1 according to the first embodiment of the present invention has at least a housing 3 having a display unit 4 and a camera module 5 and a housing 2 having a transmission / reception unit and a control unit. The operation unit 6 is arranged on one side of the casing 2 and the battery unit is arranged on the opposite side. In the figure, the transmission / reception unit, the control unit, and the battery unit are omitted. The camera module 5 is arranged on the opposite side of the display unit 4 of the housing 3.

Next, FIG. 2 is a front view, a side view, and a rear view of the housing 3 side. The side view and the rear view are in a state in which a cross section is cut so that details of the arrangement and shape of the camera module 5 can be easily understood.
From the side view, the camera module 5 is configured so that the axis 7 of the optical axis at the time of imaging of the camera module 5 is perpendicular to the housing 3 and the display unit 4, and the camera module 5 is further configured to have an optical axis at the time of imaging. It is structured to be rotatable with respect to the shaft center 7. Further, the camera module 5 has a structure in which the rotational center of gravity 8 of the camera module 5 is arranged below the image captured by the camera. From the rear view, the camera module 5 is configured to rotate 180 ° + α from the arrow A to the A ′ direction with respect to the axis 7 of the optical axis at the time of imaging, and the rotation thereafter is controlled by a rotation stopper or the like. . FIG. 3 is a detailed view of the camera module 5. The camera module 5 includes at least a housing 10 that houses imaging system components and a lens barrel 14 that protrudes from the upper surface of the housing 10 in the direction of the optical axis 7. The optical system parts include, for example, an objective lens, a correction lens 9, and the like. The imaging system parts are, for example, an imaging element such as a CCD element and its peripheral parts. The housing 10 may be equipped with electronic components for processing electrical signals obtained from the imaging system components. Alternatively, an electrical signal from the imaging system component of the housing 10 can be transmitted to the outside of the housing 10 and processed. In that case, it is composed of a substrate for connecting an electrical signal and a flexible substrate separately from the housing 10. Since the camera module 5 of the present invention is structured to be rotatable with respect to the axis 7 of the optical axis at the time of imaging, the camera module 5 can be rotated by using a flexible thin-wire coaxial cable for connection with the substrate on the mobile phone side. The disconnection at the time can be prevented. In FIG. 3, the details of the imaging system component, the substrate that electrically connects it, the flexible substrate, and the thin coaxial cable are omitted.
The rotational center of gravity 8 of the camera module 5 is arranged in the lower direction of the image taken by the camera. (FIG. 4) On the side opposite to the lens 9 side of the camera module 5, there is disposed a movable part 11 that operates in parallel to the axial direction of the optical axis when the camera module 5 performs imaging. The movable portion 11 is connected by a cam mechanism 12 and has a structure movable in the directions of arrows B and C. Further, the cam mechanism 12 has a structure in which power is transmitted by a motor 13 built in the housing 3. . Further, the structure of the rotational center of gravity 8 of the camera module 5 is made of an electromagnet, magnet or magnetic material, and the movable portion 11 is made of an electromagnet, magnet or magnetic material so that the movable portion 11 becomes Moving in the direction of arrow B, the movable part 11 and the rotational center of gravity 8 are joined by the action of magnetic force. In the state where the movable part 11 and the camera module 5 are joined, for example, as shown in FIG. 5, when the photographer operates the D key of the center navigation key 15 of the operation part 8 arranged on the housing 2 side, the display screen is also changed. In addition, it can be rotated in the D 'direction, and shooting with entertainment is possible. Although the rotation operation is assigned to the center navigation key here, the rotation operation may be assigned to other keys. For example, when a roll navigation key is used instead of the navigation key, it is possible to operate while tracing with a finger. Further, a jog dial type key may be used.
When performing the above-described operation, the movable unit 11 may be eliminated as shown in FIG.
In the above description, the camera module 5 is disposed on the housing 3 side. However, the camera module 5 may be disposed on the housing 2 as long as it is disposed in a direction opposite to the display unit. There is no particular limitation.
(Second Embodiment)
In the mobile phone 1 according to the second embodiment of the present invention, as described in the first embodiment of the present invention, the camera module 5 is used for the imaging of the camera module 5 with respect to the housing 3 and the display unit 4. The optical axis 7 is configured to be in the vertical direction, and the camera module 5 is configured to be rotatable with respect to the optical axis 7 during imaging. Furthermore, the camera module 5 has a structure in which the rotational center of gravity 8 of the camera module 5 is arranged to be below the image captured by the camera. In this configuration, for example, as shown in FIG. 7, even when the display unit 4 is tilted with respect to the subject and photographed, the rotational center of gravity 8 of the camera module 5 always faces the subject in the horizontal direction. The image is horizontal image data. That is, the photographer can shoot the subject horizontally within a short period of time without being aware of the display unit 4, and this has the effect of helping to prevent camera shake in the left-right direction. Since the rotation can be controlled by the movable 11, the cam mechanism 12 and the motor 13 as described in the first embodiment, for example, the rotation of the camera module 5 is controlled at the moment when the shutter button is pressed, It is also possible to prevent rotational shake due to the camera module 5 alone.

The present invention relates to a camera module having a structure that is rotatable with respect to the axis of the optical axis at the time of imaging by the camera module, and a structure in which the rotational center of gravity of the camera module is arranged below the image captured by the camera. By providing a structure that controls the rotation of the module, it is possible to assist in preventing camera shake in the horizontal direction with respect to the display unit, and to display the camera module by providing a structure that can control the rotation of the camera module. It is possible to take an image by adjusting the angle to an arbitrary angle.

The perspective view of the mobile telephone in the 1st Embodiment of this invention The front view, side view, and rear view of the mobile phone according to the first embodiment of the present invention Detailed view of the camera module in the first embodiment of the present invention The figure which shows the rotation gravity center position of the camera module The figure which shows the usage example in the 1st Embodiment of this invention Detailed view of the camera module in the first embodiment of the present invention The figure which shows the usage example in the 2nd Embodiment of this invention The figure which shows the conventional Example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile telephone 2 Case 3 Case 4 Display part 5 Camera module 6 Operation part 7 Axis center 8 Center of gravity 9 Camera lens 10 Camera module case
11 Moving parts
12 Cam section
13 Motor section
14 Lens tube
15 Rotation operation part

Claims (7)

A camera module having a structure that is rotatable with respect to the axis of the optical axis at the time of imaging of the camera module, and a camera module having a structure in which the rotational center of gravity of the camera module is arranged at a position below the image when the camera takes an image. Mobile phone provided with a structure for controlling rotation of the mobile phone 2. The mobile phone according to claim 1, wherein the rotational center of gravity structure of the camera module is composed of an electromagnet. 2. The mobile phone according to claim 1, wherein the rotational center of gravity structure of the camera module is constituted by a magnet. 2. The mobile phone according to claim 1, wherein the rotational center of gravity structure of the camera module is made of a magnetic material. 5. The mobile phone according to claim 1, 2, 3, 4, wherein a movable portion that operates in parallel with an axial direction of an optical axis at the time of imaging by the camera module is provided on a surface opposite to the camera photographing lens of the camera module. The movable part that operates in parallel to the axial direction of the optical axis at the time of imaging of the camera module provided on the surface opposite to the camera photographing lens of the camera module is made of a material that reacts with a magnet, an electromagnet, or a magnetic material. The mobile phone according to claim 5 The movable part that operates in parallel to the axial direction of the optical axis at the time of imaging of the camera module provided on the surface opposite to the camera photographing lens of the camera module constitutes a structure that is interlocked by a cam mechanism and a motor. The mobile phone according to claim 1, 2, 3, 4, 5, 6.

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