KR20050084887A - Image pickup module having zoom for mobile device - Google Patents

Abstract

The present invention provides an imaging module for a portable device that is easy for a user to use, small in size, sufficient in performance, and relatively inexpensive in a simple structure. The imaging module 130 incorporated in the portable information terminal device includes other lens systems 131 and 132 to have a zoom function, and moves them in a direction intersecting with the optical path direction, while moving the lens system to an appropriate focal length. It has one configuration for placement. Only a suitable number of plural types are prepared so that the lens system can perform wide-angle (wide) imaging, narrow-angle (tele) imaging, or photography at their intermediate blowing angles. These lens systems can be handled integrally with the module including the imaging device 150.

Description

Module for imaging {IMAGE PICKUP MODULE HAVING ZOOM FOR MOBILE DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a small image pickup module used in an information terminal device represented by a mobile phone, and more particularly to an image pickup module or a camera module having a zoom function.

With the spread of mobile phones, proposals have been made aiming at miniaturization and high functionality of a built-in imaging module for an information terminal device such as a mobile phone or a PDA, and it is also proposed to give a camera a zoom function. As a representative configuration for realizing the zoom function, it is known to assemble an optical system having a plurality of lenses and to adjust their distance using a mechanical or electrical feedback system.

For example, an imaging module device having a configuration provided separately from the cellular phone main body is disclosed, for example, in Japanese Patent Laid-Open No. 2002-27304. The disclosed module device includes a zoom mechanism by an optical system in which the lens portion is movable to change the distance with respect to the imaging portion.

Moreover, the imaging module disclosed in Japanese Patent Laid-Open No. 2002-277713 or Japanese Patent Laid-Open No. 2002-77841 is incorporated in the main body of the cellular phone. Since the cellular phone main body is compact, in the case of a structure in which the zoom mechanism is accommodated inside the entire imaging module, as in the technique described in Japanese Patent Laid-Open No. 2002-27304, the dimensions of the imaging module become large, and this is the main body. It cannot be accommodated inside. Therefore, the zoom mechanism of the imaging module described in the above publication has a structure in which part of the zooming mechanism protrudes outward from the main body.

Japanese Patent Laid-Open No. 2002-277713 describes the details of such a mechanism. The imaging module has two lens systems operated by a cam. In other words, the two lens systems are operated at the same time so that the distance from the imaging device and the relative position of the lens system can be determined. The cam is operated by an operation unit located on the side of the mobile phone. Therefore, the user can move the lens system and change the intake angle at the time of imaging by moving this operation part.

On the other hand, an example of the imaging module of the form which changes the imaging of wide angle and narrow angle by switching an optical path is described in Unexamined-Japanese-Patent No. 2001-223924. It is comprised so that an optical path can be switched by using a liquid crystal switch. Such a configuration can arrange the entire imaging module inside the main body of the cellular phone in response to requests for miniaturization and thinning of the cellular phone and the like, and also has excellent advantages in impact resistance.

However, according to the former example, the proposed imaging module with a zoom function has two or three individual lenses in its optical system, and the zoom function is switched by switching their distance from each other using a mechanical or electrical mechanism. In this case, a plurality of lenses are required in this case, so that the length of the entire optical system is long, or special lens driving functions must be added, and a complicated mechanism must be prepared. Furthermore, an electrical feedback system for the control is required. It becomes technically difficult and expensive, for example.

On the other hand, according to the latter example, the configuration is relatively simple as a whole, but the imaging direction is inconvenient for the user because the photographing direction of the wide angle and the narrow angle is reversed in the front and back of the mobile telephone.

Summary of the Invention

Accordingly, an object of the present invention is to provide an imaging module for a portable device that is easy for a user to use, has a small and sufficient function, and is relatively inexpensive with a relatively simple structure.

SUMMARY OF THE INVENTION The present invention is an imaging module assembled in a portable information terminal device, which has a different lens system in order to have a zoom function, moves it in a direction crossing the optical path direction, and arranges the lens system at an appropriate focal length or optical distance. It is to provide a module of one configuration to do so. Only a suitable number of types of lenses are prepared for wide-angle (wide) imaging, narrow-angle (tele) imaging, or photography at their intermediate blowing angles. These lens systems are configured to be handled integrally with a module including an imaging device.

According to the present invention, a plurality of lens systems, which are two or more types for pre-wide-angle image capturing and narrow-angle image capturing, are separately prepared, and they are switched as necessary, thereby photographing multiple types of angles of view using one imaging device. Make it possible. This eliminates the need for complicated lens drive functions and feedback systems, and can be such that the lens system has at least the shortest optical distance when the lens system is housed in the main body of the portable device. Furthermore, by making the length of the optical system of the narrow image longer than that of the wide region, the design of the lens is facilitated, and the design of the optical length short can prevent the deterioration of the quality of the captured image.

That is, the present invention is an imaging module which is incorporated in a portable information terminal device, in which a plurality of lens systems defining a predetermined different image intake angle of wide angle or narrow angle are moved in a direction crossing the optical path and can be switched with each other. Each of the plurality of lens systems is moved to define a predetermined optical distance with respect to the imaging device.

Preferably, the plurality of lens systems are linearly slid in a direction along one main surface of the portable information terminal device for switching, and only a member including a desired lens system moves in a direction away from the imaging device. And to define the optical position.

Preferably, the plurality of lens systems are configured to define a predetermined optical position by sliding linearly in an oblique direction with respect to one main surface of the portable information terminal device for switching.

Preferably, the plurality of lens systems are rotatable in accordance with one main surface of the portable information terminal device for switching.

Preferably, the plurality of lens systems are fixed to a single member, and the single member is moved such that the lens system selected for the imaging device is a desired distance as it rotates.

Preferably, the lens system selected from among the plurality of lens systems is configured to define a predetermined optical position by moving in the direction away from the member where the other lens system is fixed in accordance with the rotation.

Preferably, the lens system for wide-angle imaging is always arranged inside the housing of the portable information terminal device, and the lens system for narrow-angle imaging is configured to protrude outwardly when selected.

Preferably, the plurality of lens systems have the same focal length or optical distance, and can be moved and changed in one plane intersecting the imaging device and the optical path constituting the lens system positioned therein.

1 is a perspective view for explaining an arrangement in a mobile telephone of an imaging module according to the present invention;

2 is a schematic diagram illustrating wide-angle imaging and narrow-angle imaging by the imaging module of the present invention;

3A is a plan view showing an imaging module according to a first embodiment of the present invention, showing a so-called wide-angle imaging (wide) state in which a lens system is positioned on an imaging device;

3B is a plan view showing an imaging module according to the first embodiment of the present invention, showing a so-called narrow angle photographing (tele) state in which the lens system is positioned on the imaging device;

4A is a schematic cross-sectional view for explaining an example in which the imaging module according to the first embodiment of the present invention is embodied, showing a wide-angle imaging state;

FIG. 4B is a schematic cross-sectional view for illustrating an example in which the imaging module according to the first embodiment of the present invention is embodied, showing an intermediate state of transition; FIG.

4C is a schematic cross-sectional view for illustrating an example in which the imaging module according to the first embodiment of the present invention is embodied, showing a narrow angle photographing state;

5A is a schematic plan view showing an imaging module according to a second embodiment of the present invention, showing a wide-angle imaging state;

5B is a schematic plan view showing an imaging module according to a second embodiment of the present invention, showing a narrow angle photographing state;

6 is a schematic plan view showing an imaging module according to a third embodiment of the present invention;

FIG. 7A is a diagram showing an embodiment in which an imaging module according to a third embodiment of the present invention is embodied, schematically illustrating a wide angle photographing state; FIG.

FIG. 7B is a diagram showing an example of an embodiment of an imaging module according to a third embodiment of the present invention, schematically showing a narrow angle photographing state; FIG.

Fig. 7C is a diagram showing an example of an embodiment of an imaging module according to a third embodiment of the present invention, showing a partial perspective view of a mobile telephone showing the arrangement of the imaging module in the mobile telephone.

8A is a diagram showing an example of a form in which an imaging module according to a third embodiment of the present invention is further applied, and is a schematic sectional view of a narrow angle photographing state;

8B is a diagram showing an example of a form in which an imaging module according to a third embodiment of the present invention is further applied, and is a schematic cross-sectional view of a wide-angle photographing state;

8C is a diagram showing an example of a form in which an imaging module according to a third embodiment of the present invention is further applied, showing a part of the mobile telephone in a narrow angle photographing state;

8D is a view showing an example in which an imaging module according to a third embodiment of the present invention is further applied, showing a part of a mobile telephone in a wide-angle photographing state,

9A is a diagram showing an imaging module according to a fourth embodiment of the present invention, which is a plan view of a wide-angle photographing state;

FIG. 9B is a diagram showing an imaging module according to a fourth embodiment of the present invention, wherein the plan view of an intermediate angle photographing state; FIG.

9C is a diagram showing an image pickup module according to a fourth embodiment of the present invention, wherein

9D is a diagram showing an imaging module according to a fourth embodiment of the present invention, wherein only the wide-angle imaging state imaging module is taken out and viewed from the D direction;

Fig. 9E is a diagram showing an imaging module according to a fourth embodiment of the present invention, in which only a medium angle photographing state imaging module is taken out and viewed from the E direction,

9F is a diagram showing an imaging module according to a fourth embodiment of the present invention, wherein only the narrow angle photographing state imaging module is taken out and viewed from the F direction;

FIG. 9G is a diagram showing an imaging module according to a fourth embodiment of the present invention, showing the arrangement of the imaging module in the cellular phone; FIG.

10A and 10C are diagrams showing a modification of the imaging module according to the fourth embodiment of the present invention, showing a wide angle photographing state;

10B and 10D show a modification of the imaging module according to the fourth embodiment of the present invention, showing a narrow angle photographing state.

EMBODIMENT OF THE INVENTION Below, the imaging module which concerns on preferred embodiment of this invention is demonstrated in detail with reference to an accompanying drawing.

1 is a perspective view for explaining an arrangement in a mobile telephone of an imaging module according to the present invention. 2 is a schematic diagram illustrating wide-angle imaging and narrow-angle imaging by the imaging module of the present invention. According to FIG. 1, the imaging module 30 is embedded and disposed near the top end of the mobile telephone 10. In the figure, reference numeral 21 denotes a liquid crystal device for display, reference numeral 23 denotes a ten key in which numerals are indicated, and reference numeral 22 denotes a pointing device.

In this example, the imaging module 30 can face the back direction of the cellular phone. The imaging module 30 includes two lens systems 31 and 32 and an imaging device 50 which is assembled with any one of them to form an optical system for imaging. The focal lengths of the two lens systems 31 and 32 are different, for example, one side is used for wide angle (wide) imaging and the other side for narrow angle (tele) imaging. These wide angle and narrow angle changes are caused by mutual switching by moving the lens systems 31 and 32 assembled with the imaging device 50 in the X2 direction, but this switching is possible by moving the lever 25 in the X1 direction, for example. Become. 2 shows the difference in the dimensions of the focal length FLa and FLb or the optical distance TLa and TLb when each of the lens systems 31 and 32 is used.

3A and 3B are plan views showing an imaging module according to a first embodiment of the present invention, in which FIG. 3A is a view showing a so-called wide-angle photographing (wide) state, and FIG. 3B is a state of so-called narrow-angle photographing (tele) Figure is a diagram.

The imaging module 130 includes a first frame 14l which is arranged to be slidable in the horizontal direction, that is, in the longitudinal direction of the imaging module 130. The second frame 142 is attached to the first frame 141 so as to be movable in a direction perpendicular to the sliding direction. The lens system 131 is fixed to the first frame 141, and the lens system 132 is fixed to the second frame 142.

At the position of wide-angle imaging of FIG. 3A, the lens system 131 is arranged to achieve an appropriate focal length with respect to the imaging device 150. When the user changes from the wide-angle shot of FIG. 3A to the narrow-angle shot of FIG. 3B, the first frame 141 is moved in the direction of the arrow A1. This movement is by means of the lever 25 accessible from the outside, for example as shown in FIG. Usually, the 2nd frame 142 is arrange | positioned inside the 1st frame 141 as shown in FIG. 3A. However, when the first frame 141 is moved so that the second frame 142 moves to a position overlapping the imaging device 50, the second frame 142 is protruded from the first frame 141. [See arrow (B1)] to move. In this protruding position, the lens system 132 is arranged at an appropriate focal length with respect to the imaging device 150.

An embodiment for mechanically realizing the structure shown in FIG. 3 is shown in FIGS. 4A to 4C. 4A shows a wide angle photographing state, FIG. 4C shows a narrow angle photographing state, and FIG. 4B shows an intermediate state of transition. 4A to 4C, the imaging module 180 is relatively movable with respect to the imaging device 150, the first frame 191 including the lens system for wide-angle imaging, and the first frame l9l. A second frame 192 including a lens system for narrow angle photographing is provided.

4A shows a wide-angle imaging state, and the first frame 191 is arranged such that the lens system for wide-angle imaging is positioned with respect to the imaging device 150. The user moves the first frame 191 in the direction of the arrow A1 in the figure in order to change from this state to the state of the narrow angle photographing. As described above, this movement is fixed to the first frame 191 and is manually executed by the user by a lever accessible from the outside. Since the spring member Sl is attached to the first frame 191 to press it in the right direction in the drawing, that is, the direction opposite to the arrow A1, the lever operation of the user is performed in response to the spring force.

Further, the first frame 191 has a spring member S2 therein which always presses the second frame 192 upward in the drawing, that is, in the direction of the arrow B1. Therefore, when the 1st frame 191 is pulled out to the predetermined position shown in FIG. 4B, the locking mechanism which is not shown in figure which hold | maintained the 2nd frame 192 in the 1st frame 191 is removed. The second frame 192 protrudes outward through the window 187 formed in the housing 186 of the imaging module 180 (in the direction of the arrow B1), and thus, as shown in FIG. 4C, the second frame ( The narrow angle lens system in 192 maintains a predetermined focal length with respect to the imaging device. At this time, the second frame 192 passes through the outer surface (not shown) of the cellular phone and protrudes to the outside. Also, the first frame 191 can be held in the position of FIG. 4C by another locking mechanism not shown.

In order for the user to return from the narrow angle photographing state to the wide angle photographing state, the second frame 192 protruding from the surface of the cellular phone is pressed against the force of the spring member S2, and is pressed from the state of FIG. 4C to the state of FIG. 4B. do. At this time, the locking mechanism (not shown) holding the first frame 191 is released, and is opposite to the right direction in the drawing, that is, the arrow B1 direction by the spring means S1 for pressing the first frame 191. Is moved in the direction. As a result, the first frame 19l and the second frame 192 are returned to the state of wide-angle imaging shown in Fig. 4A.

5A and 5B show an imaging module according to a second embodiment, in which FIG. 5A shows a wide angle photographing state and FIG. 5B shows a narrow angle photographing state. The second imaging module 280 also has a first frame 291 and a second frame 292 which is relatively movable relative to the first frame 291, and lens systems 281 and 282 for wide-angle and narrow-angle imaging, respectively, Supported. The movement of the first frame 291 is the same as that of the first embodiment. The difference from the first embodiment is that the second frame 292 is guided by the cam mechanism with respect to the first frame 291.

That is, the cam groove 270 is formed in the inner wall of the imaging module 280, and the cam protrusions 261 and 262 accommodated in the cam groove 270 are provided in the second frame 292. (The cam groove accommodating the cam protrusion 262 is not shown.) In order to change from the wide angle photographing state of FIG. 5A to the narrow angle photographing state of FIG. 5B, the first frame 291 moves in the direction of an arrow A1 in the figure. When moved, the second frame 292 is moved so that the cam protrusions 261 and 262 are guided to the cam grooves 270 to perform the curved movement as shown by the arrow A2 and to protrude from the imaging module 280. do. When the second frame 292 reaches a predetermined position, that is, when the position of Fig. 4B is reached, the first frame 291 is fixed by a lock mechanism (not shown), so that this narrow angle photographing state is maintained. When returning from the narrow angle photographing state of FIG. 4B to the wide angle photographing state of FIG. 4A, the user can directly operate the lever or press-fit the protruding second frame 292.

6 is a schematic plan view of the imaging module according to the third embodiment. In this imaging module 330, the wide-angle and narrow-angle lens systems 331 and 332 are fixed to the common frame 340 together. The frame 340 moves in the oblique direction as shown by arrow A3 with respect to the main body 336 of the imaging module 330 including the imaging device 350. That is, when the frame 340 of the position shown by a solid line in a figure is arrange | positioned, it will become a wide angle photographing state, and when a frame 340 moves to arrow A3 direction and reaches a broken line position, it will become a narrow angle photographing state. . As described above, the frame 340 may be moved by operating a lever (not shown), but the frame end 348 protruding from the imaging module 330 in the wide-angle photographing state as shown in the figure protrudes from the cellular phone main body. The frame end 349 in the narrow angle photographing state and the operation of press-fitting it inwardly may be protruded from the cellular phone main body, and may be performed in accordance with the pressing operation.

An example of an embodiment of the imaging module according to the embodiment of FIG. 6 is shown in FIGS. 7A to 7C. 7A and 7B are schematic plan views showing wide-angle photographing and narrow-angle photographing states, respectively, and FIG. 7C is a partial perspective view of the cellular phone showing the arrangement of the imaging module in the cellular phone. As shown in the figure, the imaging module 430 is disposed near each part of the mobile telephone 410. In the frame 440, both the lens system 431 for wide-angle imaging and the lens system 432 for narrow-angle imaging are fixed. In the wide-angle imaging state of FIG. 7A, the lens system 431 is positioned at the imaging device 450, and in the narrow-angle imaging state of FIG. 7B, the lens system 432 is positioned at the imaging device 450. The moving direction of the frame 440 is an inclined direction, and in each state, an appropriate optical distance or focal length corresponding to each of the lens systems 431 and 432 is set. The frame 440 is provided with a pillar portion 446, which is guided to the groove 411 provided in the cellular phone main body 410, so that frame movement is performed between both states. In this example, the frame 440 is moved by the user operating the lever 447, but other means may be used.

8A to 8D are diagrams showing examples of a form in which the example shown in FIG. 7 is further applied, and FIGS. 8A and 8B are schematic cross-sectional views, and FIGS. 8C and 8D are perspective views showing a part of a mobile telephone. It is a figure which shows the narrow angle photographing state in FIG. 8A and 8C, and the wide angle photographing state in FIG. 8B and 8D, respectively. In the state of wide-angle imaging of FIGS. 8A and 8C, the lens system 431 is positioned to have an optical distance or focal length suitable for the imaging device 450, and in the state for narrow-angle photography of FIGS. 8B and 8D, the lens system 432. Is positioned with an optical distance or focal length suitable for the imaging device 450. As shown, also in this example, the frame 490 including the wide-angle, narrow-angle lens system 431, 432 can be moved in the oblique direction with respect to the main body 486 including the imaging device 450. A difference from the example shown in FIGS. 7A to 7C is that the frame 490 includes the LED 481 for illumination integrally. In the wide-angle imaging state of FIGS. 8A and 8C, the lighting LED 481 is located inside the window 485, but in the narrow-angle imaging of FIGS. 8B and 8D, the lighting LED 481 is exposed to the outside.

9 is a view showing an imaging module according to a fourth embodiment of the present invention, in which FIGS. 9A and 9D are wide angle photographing, FIGS. 9B and 9E are intermediate angle photographing, and FIGS. 9C and 9F are narrow angle photographing. 9A to 9C are plan views, and FIGS. 9D to 9F are side views taken only from the imaging module and viewed from the D, E, and F directions, respectively. Moreover, FIG. 9G is a figure which shows the arrangement | positioning in the mobile telephone of an imaging module.

The imaging module 530 has a substantially circular frame 540 to which a narrow angle lens system 531, a wide angle lens system 533, and an intermediate lens system 532 are fixed. The frame 540 is also substantially circular and is configured to rotate in a screw (helical) direction with respect to the main body 536 in which the imaging device 550 is incorporated. Although not shown, a convex portion or a convex groove extending in the screw direction is formed on the outer surface of the main body 536, and a concave portion or convex portion is formed on the inner surface of the frame 540 to which reference is made. 511 shows the surface of the mobile telephone.

As shown, when the narrow angle lens system 531 is positioned at the imaging device 550 and has an appropriate focal length, the surface 541 of the frame 540 substantially coincides with the surface 511. When the user changes the blowing angle from this state, the frame 540 is screwed. The direction of rotation is indicated by arrow R in the figure. Thereby, the lens system 532 of intermediate blowing angle is positioned in the imaging device 550 in place of the wide-angle lens system 531, and at the same time the surface 541 of the frame 540 is removed from the surface 511 of the mobile telephone. Protruding to realize an appropriate focal length or optical distance with respect to the lens system 532. The frame 540 can be held in position by locking means, not shown. In order to be changed to a narrower angle photographing, the frame 540 may be further rotated toward the direction of the arrow (R). As a result, the lens system 533 is positioned with respect to the imaging device 550, and the frame 540 further protrudes, so that the lens system 533 becomes a suitable focal length or optical distance with respect to the imaging device 550. Other locking means may be provided to hold in this position. The user may return to the intermediate angle shooting or the wide angle shooting state by rotating the frame 540 in the direction opposite to the arrow R direction.

In addition, in this embodiment, a lens for macro photographing can be used instead of a lens system provided for intermediate angle photographing. According to the macro shooting, it is also possible to shoot a position relatively close to the camera module that cannot be photographed in the narrow-angle lens system. The user can realize the setting for macro shooting by simply rotating the frame 540.

10A-10D, the modification which concerns on 4th Embodiment of this invention shown to FIG. 9A-9F is shown. 10A and 10C show a wide angle photographing state, and FIGS. 10B and 10D show a narrow angle photographing state. The frame 640 also includes a wide-angle lens system 63l and a narrow-angle lens system 632, and can be screw-rotated with respect to the main body 636 including the imaging device 650. 9A to 9F are different in that the frame 640 is accommodated inside the main body 636. A screw rotation protrusion 646 is formed on the side wall of the frame 640, and a screw groove 647 is formed on the inner surface of the side wall of the body 636 to accommodate the screw rotation protrusion 646.

The frame 640 is rotated in the direction of the arrow R1 in order to shift from the wide angle imaging state to the narrow angle imaging state. In this embodiment, since the lens systems 631 and 632 are disposed eccentrically on one side, the orbital length of the rotation is longer than that shown in the examples shown in FIGS. 9A to 9F, and the frame 640 is rotated while moving in the protruding direction. There is an advantage in that the operation is smoother. As a result, the surface 641 of the frame 640 is made to protrude from the main body 636, and is held at a predetermined position by a lock mechanism not shown in this state. In order to facilitate the operation of the rotation, for example, an operation unit that can be operated with a finger may be provided on the surface 641 of the frame 640. When returning from the narrow angle photographing to the wide angle photographing state, the frame 640 is rotated in the direction R2 opposite to the direction R1.

As described above, the imaging module according to the preferred embodiment of the present invention has been described, but this is merely illustrative and does not limit the present invention, and various modifications and changes can be made by those skilled in the art.

For example, by setting different lens systems of the inclination angle, such as wide-angle imaging and narrow-angle photography, to the same focal length or optical distance, it is possible to realize a configuration in which only the inside of one surface intersecting with the optical path is shifted when the lens system is changed from the wide angle to the narrow angle. have. In this case, it is not necessary to project the predetermined lens system in the direction away from the imaging device. That is, in the above-described first or second embodiment, it is not necessary to provide a second frame that is relatively movable with respect to the first frame, and the lens systems can be switched only by fixing both lens systems to a single frame and sliding them. In the fourth embodiment, the frame can be rotated within the same plane.

Furthermore, in the fourth embodiment, the frame shape does not necessarily need to be circular, and may be a fan shape or a shape similar thereto. In addition, similarly, in the fourth embodiment, the frame includes a first frame including a lens system for wide-angle imaging, and a second frame including a lens system for narrow-angle imaging and moving in a protruding direction with respect to the first frame. When the first frame is rotated, only the second frame may protrude.

In addition, with respect to the macro shooting described above, as shown in the fourth embodiment, a lens system for macro shooting is not provided separately, and the frame supporting the lens system is separated from the imaging device at each of the taken-in angle photographing positions. A function of linearly sliding in the direction of the direction may be provided. For example, the frame can be moved by manual cam operation. In this case, an additional operation unit for macro shooting can be installed.

Claims (8)

An imaging module assembled in a portable information terminal device, A plurality of lens systems defining a predetermined different image intake angle of a wide angle or narrow angle are moved in a direction crossing the optical path to be switchable with each other, and at the time of switching, each of the plurality of lens systems has a predetermined optical value for the imaging device. Characterized in that it is moved to define the distance Module for imaging. The method of claim 2, The plurality of lens systems are linearly slid in a direction along one main surface of the portable information terminal device for switching, and only the member including the desired lens system is moved in a direction away from the imaging device so that the predetermined optical Characterized in that it is configured to define a location Module for imaging. The method of claim 1, And the plurality of lens systems are configured to define the predetermined optical position by sliding linearly in an oblique direction with respect to one main surface of the portable information terminal device for switching. Module for imaging. The method of claim 1, The plurality of lens systems may be rotatable according to one main surface of the portable information terminal device for switching. Module for imaging. The method of claim 4, wherein The plurality of lens systems are fixed to a single member, wherein the single member is moved so that the lens system selected for the imaging device is a desired distance in accordance with the rotation. Module for imaging. The method of claim 4, wherein The lens system selected from among the plurality of lens systems is configured to define the predetermined optical position by moving in a direction away from the member where the other lens system is fixed in accordance with the rotation. Module for imaging. The method of claim 1, The lens system for wide-angle imaging is always disposed inside the housing of the portable information terminal device, and the lens system for narrow-angle imaging is configured to protrude out of the housing when selected. Module for imaging. The method of claim 1, Wherein the plurality of lens systems have the same focal length or optical distance, and are shifted and shifted in one plane intersecting the imaging device and the optical path constituting the lens system positioned therein Module for imaging.