JP2003075708A - Lens device for imaging unit, and flexible printed wiring board used for the lens device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a lens device for an imaging unit using a flexible printed wiring board by eliminating an excessive space for storing the flexible printed wiring board. SOLUTION: The lens device for an imaging unit has, at a fixing body side, at least a movable part comprising a lens frame to hold a lens and a winding coil, a guide shaft to guide the movement of the lens frame along an optical axis direction, and a yoke part provided with a magnet which acts on the winding coil to transfer the lens frame. The flexible printed wiring board having a U-shaped or V-shaped is arranged between the movable part and the fixing body side as power supply electric wiring to the winding coil. The lens device is applicable to a small lens barrel while reducing the repulsive force of the flexible printed wiring board. Therefore, the space for the flexible printed wiring board becomes unnecessary in the small lens barrel, and the size of the small lens barrel is further miniaturized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor driven lens device which is arranged and used in an image pickup device such as a video camera or a digital camera, and a flexible printed circuit board used in the lens device. Is.

[0002]

2. Description of the Related Art Conventionally, as a lens device driven by a linear motor of this type, for example, a lens device having a structure shown in FIG. This known lens device generally
A lens frame 2 having a lens 1 attached to the substantially central portion,
A pair of guide shafts 3a and 3b for moving the lens frame 2 in the horizontal direction, a winding coil 4 serving as a driving source for the movement, and other members serving as a driving source, a magnet, a yoke bridge, and a base yoke. (Not shown), and a flexible printed wiring board 5 in the form of a strip for supplying power to the winding coil 4.

On both sides of the lens frame 2, guide shafts 3a, 3
The engaging portions 6 and 7 that engage with b are integrally formed,
One of the engaging portions 6 has a configuration that completely surrounds (inserts) a portion of the guide shaft over a predetermined length, and the other engaging portion 7 has at least 1 / a of the portion of the guide shaft. It has a shape that surrounds two or more. By forming the engaging portions 6 and 7 in this way, when the lens frame 2 moves, blurring does not occur in the left-right and front-back directions.

The pair of guide shafts 3a and 3b are arranged in a lens barrel body (not shown) in parallel with the optical axis, and the power is supplied through the flexible printed wiring board 5 to the lens frame. The forward and backward movement of 2 is driven.
That is, the lens frame 2 that holds the lens 1 in accordance with the direction of the current flowing through the winding coil 4 in the drive source is placed along the pair of guide shafts 3a and 3b in either the front-back direction or the optical axis direction. It is something that moves.

Along with the movement of the lens frame 2 in the front-rear direction, the flexible printed wiring board 5 having a strip shape is arranged so as to be curved in a U shape or a loop shape in a side view. As shown by the arrows a and b, the curved or loop-shaped portion 5a moves back and forth like a caterpillar when pulled or pushed, and a space for the movement is secured inside the lens barrel body. .

When the flexible printed wiring board 5 having a strip shape is used as described above, it is possible to increase the length of the curved or loop-shaped portion 5a to the folded-back position or to increase the diameter of the loop-shaped portion 5a. It is possible to reduce the repulsive force in the loop-shaped part 5a of the flexible printed wiring board 5, and this wiring method has a relatively large outer shape of the flexible printed wiring board 5 like the zoom lens barrels up to now. This is effective when a sufficient space corresponding to the movable portion can be secured or when the movable range with the master lens is long.

[0007]

However, in the lens device for the image pickup device which adopts the method of moving the belt-shaped flexible printed wiring board 5 back and forth like a caterpillar, as in the lens barrel of recent years, 30 CC and 20 CC are used.
In the case of a small lens barrel that aims to achieve the above, it is difficult to secure a sufficient space corresponding to the length of the flexible printed wiring board 5 and the diameter of the loop-shaped portion 5a. If priority is given to downsizing, it will interfere with size reduction. If priority is given to downsizing, flexible printed wiring board 5
Cannot be sufficiently long and the diameter of the loop-shaped portion 5a cannot be secured. Nevertheless, if priority is given to miniaturization and space is kept to a minimum, the loop-shaped portion 5a of the flexible printed wiring board 5 has a large deformation repulsive force at the time of caterpillar-like forward and backward movement, which is disadvantageous when the lens 1 is moved. In such a situation, the moving operation of the lens 1 is eventually destabilized.

Further, in order to reduce the repulsive force of the loop-shaped portion 5a in the strip-shaped flexible printed wiring board 5, the diameter of the loop-shaped portion 5a must be increased, and the portion of the loop-shaped portion 5a must be large. However, it is necessary to pass through a minute gap beside the iris unit and various fixed component groups (not shown), and the restriction on the design becomes large. For example, when the loop-shaped portion 5a of the flexible printed wiring board 5 is twisted out of the movable silhouette, the edge of the twisted portion is rubbed or caught, and an abnormal sound is generated due to interference with a contact partner component. Or inconvenience may occur.

Therefore, in the linear motor driven lens device used in the conventional image pickup device,
There is a problem in using a flexible printed wiring board and ensuring a space for accommodating the flexible printed wiring board so as not to cause malfunction so that the lens barrel can be downsized.

[0010]

As a concrete means for solving the above-mentioned problems, the first invention according to the present invention is at least
A movable part including a lens frame holding the lens and the winding coil, a guide shaft for guiding the movement of the lens frame along the optical axis direction, and a magnet for moving the lens frame by acting on the winding coil. And a yoke portion on the fixed body side for an image pickup device, wherein a U-shaped or V-shaped wiring is provided between the movable portion and the fixed body as power supply wiring to the winding coil. Provided is a lens device for an image pickup device, which is provided with a flexible printed wiring board.

In the first aspect of the present invention, in the flexible printed wiring board, the connection portion with the fixed body side is set as a substantially midpoint of the set movement stroke of the lens frame, and the lens frame is crossed beyond the midpoint. An additional requirement is that the structure can be reciprocated along the optical axis direction.

A second invention according to the present invention is a flexible printed wiring board having a plurality of lead patterns and terminal portions for connection at both ends thereof, wherein the flexible printed wiring board has a curved portion in a substantially middle portion. U-shaped or V with
The present invention provides a flexible printed wiring board used for a lens device, which is characterized in that it is formed in a character shape.

In the second aspect of the present invention, the flexible printed wiring board has a small hole in the center of the inside of the curved portion for exhibiting a U-shape or a V-shape, and the terminal for connecting from the small hole. And a U-shaped or V-shaped portion having the curved portion has terminal portions for connection at both ends formed on the hard portion, respectively. The flexible wiring board having the lengths from the boundary of the hard portion to the curved portion substantially equal to each other is included as an additional requirement.

A lens device for an image pickup device according to the present invention comprises:
By forming the flexible printed wiring board in a U shape or a V shape and disposing the flexible printed wiring board between the movable portion and the fixed body side, it is possible to reduce the repulsive force of the flexible printed wiring board and form a small lens barrel. Applicable, especially 3
It is not necessary to provide a space for the flexible printed wiring board in the small lens barrel aiming at 0CC or 20CC, and not only the size of the small lens barrel can be further reduced but also the flexible printed wiring board Since it is possible to select the installation position above the lens frame, it is not necessary to pass through the minute gaps beside the iris unit and various fixed parts, and noise will occur due to interference with the parts to contact. It is possible to avoid the occurrence of malfunctions and malfunctions, and the design restrictions are reduced.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described based on the preferred embodiments. FIGS. 1 and 2 show a lens barrel used in an image pickup apparatus such as a video camera or a digital camera. That is, it is a front view and a side view showing the entire lens device, and the lens device 11 is divided into a front cylinder 11a and a rear cylinder 11b, and has a structure that can be freely combined.

In this lens device 11, as shown in FIG. 3, the master lens group 12 is fixed to one of the front cylinders 11a in a fixed position and the other rear cylinder. A lens 13 is provided on the body 11b, and the lens 13 is attached to a lens frame 14 and is provided so as to be movable together with the lens frame 14.

As shown in FIGS. 4 and 5, the lens frame 14 for holding the lens 13 includes a pair of guide shafts 15a,
It is supported by 15b and moves, and its support mechanism includes engaging portions 16 and 17 provided on both sides of the lens frame 14.
The guide shafts 15a and 15b are configured to be engaged and inserted. In this case, the one engaging portion 16 has the guide shaft 15a.
Has a configuration that completely surrounds (inserts) a part of the guide shaft over a predetermined length, and the other engaging portion 17 has a shape that surrounds at least ½ of a part of the guide shaft 15b. It is a thing. The configuration in which the guide shafts 15a and 15b are mounted in the lens device 11 in parallel with the optical axis is almost the same as the above-described conventional example, and the engaging portions 16 and 17 are formed in this way. As a result, when the lens frame 13 moves, blurring does not occur in the left-right and front-back directions.

Further, a winding coil 18 constituting a main part of the moving means is fixed to the lens frame 14, and other members constituting the moving means, that is, the magnet 19 and the base yoke 20 are provided at the rear portion. It is provided on the inner wall of the cylindrical body 11b. In this case, it is provided at a position corresponding to the winding coil 18 in the range of the movement stroke of the lens frame 14, and after the yoke bridge 21 is inserted into the winding coil 18, both ends thereof are attached to the base yoke 20. It is fixed in the state where it is fixed and the magnet 19 is held. That is, the yoke bridge 21
The base yoke 20 is fixedly disposed as a yoke portion on the fixed body side, that is, on the rear tubular body 11b.

The moving means thus constructed, that is, the flexible printed wiring board 22 having a special structure for supplying power to the winding coil 18 is used, and one terminal portion 23 of the flexible printed wiring board 22 is used. Is connected to the winding coil 18, and the other terminal portion 24 is connected via a holder portion 25 to a power source terminal portion (not shown) provided on the inner upper surface wall of the rear tubular body 11b. .

When a current from a required power source flows to the winding coil 18 via the flexible printed wiring board 22, the action of the current and the magnet 20 causes the lens frame 14 to hold the lens 13 in the guide shaft. 15
It moves back and forth in the optical axis direction as indicated by arrows a and b along a and 15b.

Flexible printed wiring board 2 having a special structure
In the first embodiment according to No. 2, as shown in FIG. 7, the whole is formed in a shape that is substantially U-shaped in a plan view, and along the U-shape, a two-pole lead pattern 22a, 22b is formed.

This U-shaped flexible printed wiring board 22 is connected to one terminal portion 23 by a flexible wiring board 22d from a U-shaped curved portion 22c and the other terminal portion 2 by a flexible wiring board 22e.
4 and has a structure in which a predetermined spacing portion 26 is formed between the flexible wiring boards 22d and 22e. On the side of the one terminal portion 23 connected to the flexible wiring board 22d, the terminal portion 23 is formed via the wiring position adjusting portion 27 that bends and extends approximately 90 degrees outward to connect to the winding coil 18. And the connection terminals 23a, 23 of the lead patterns 22a, 22b are attached to the terminal portion 23.
b is formed.

On the side of the other terminal portion 24 connected to the flexible wiring board 22e, in order to stabilize the attachment to the holder portion 25, the terminal portion 24 is provided via the first wide portion 28 and the second wide portion 29. And the connection terminals 24a and 24b of the lead patterns 22a and 22b are formed on the terminal portion 24.

On one side of the terminal portion 23 and on the other side of the terminal portion 24, there are provided backing base plates including the adjusting portion 27, the first wide portion 28 and the second wide portion 29. A boundary portion 30 is formed between the hard portion and the flexible wiring boards 22d and 22e, and the boundary portion 30 allows the length of the flexible wiring boards 22d and 22e from the curved portion 22c to be equal to each other. However, the bending states are almost the same.

Further, as the flexible printed wiring board having the special structure, as shown in FIG. 8A, the one of the second embodiment can be cited. Like the first embodiment, the flexible printed wiring board 32 according to this embodiment is formed in a shape that is substantially U-shaped in plan view, and has, for example, a two-pole lead pattern 32a. Three
2b is formed.

Also in the second embodiment, the flexible printed wiring board 32 has a U-shaped curved portion 32c.
From the flexible wiring board 32d to the one terminal portion 3
3 and also to the other terminal portion 34 by the flexible wiring board 32e, and the flexible wiring board 32d
On the side of one terminal portion 33 connected to
The terminal portion 33 is formed via the adjusting portion 37 at the wiring position that is bent outward by about 90 degrees for connecting to the connector 8, and the connecting terminals 33a and 33b of the lead patterns 32a and 32b are formed on the terminal portion 33. Are formed.

On the side of the other terminal portion 34 connected to the flexible wiring board 32e, in order to stabilize the attachment to the holder portion 25, one wide portion 3 of a predetermined size is provided.
9, the terminal portion 34 is formed, and the terminal portion 34
To the connection terminals 34a of the lead patterns 32a and 32b,
34b is formed. Further, the one terminal portion 33 side and the other terminal portion 34 side are each provided with a base plate lined with the adjusting portion 37 and the wide portion 38 to form a hard portion, and the hard portion and both flexible wirings are formed. Board 32
There is a boundary 40 between the d and 32e, and the boundary 4
Both flexible wiring boards 3 from the curved portion 32c by 0
It is formed so that the lengths of 2d and 32e are the same and the bending states are substantially the same. Each of these components is substantially the same as that of the first embodiment except that there is no first wide portion, but a small hole 35 is provided in the inner center portion of the curved portion 32c. A slit-shaped cutoff portion 36 is provided from the small hole 35 along the inner sides of both the flexible wiring boards 32d and 32e toward the terminal portions 33 and 34,
The difference from the first embodiment is that there is no wide spacing.

Further, as shown in FIG. 8 (B), the small hole 35 provided in the center of the inside of the curved portion 32c may be a round hole or a drop shape. This is for avoiding the possibility of tearing along the cut-off portion 36 if the end portion of the portion 36 is in an extended state as it is.

The lens frame 14 formed by using the flexible printed wiring boards 22 and 32 thus formed
9A and 9B show an example of the movement situation of
Will be described with reference to FIGS. 10 (A) and 10 (B). When using these flexible printed wiring boards 22 and 32, the width direction is made vertical. In addition,
Since the flexible printed wiring boards 22 and 32 have almost no change in their operating conditions, the case where the flexible printed wiring board 22 according to the first embodiment is used will be described.

The maximum movement stroke of the lens frame 14 in the forward (arrow a) and backward (arrow b) directions with respect to the optical axis direction is set in advance, and in the initial stage, the movement start position at the maximum movement stroke, that is, the reference position. The lens frame 14 is set at K, and the state where the lens frame 14 is slightly advanced from the reference position K is the position of FIG. 9 (A). When in the reference position K, the flexible printed wiring board 22 does not bend, and when it moves forward from the reference position K, the flexible printed wiring board 2 has the curved portion 22c as a base point.
2d and 22e are gradually bent, and as shown in FIG. 9 (B), they are slightly opened.

From this state, as shown in FIGS. 10A and 10B, when the lens frame 14 further advances and reaches the maximum movement stroke point from the reference position K as shown by the arrow a. , The flexible printed wiring board 22 has a curved portion 2
The flexible wiring boards 22d and 22e are further bent from the point 2c as a base point, and are in a wide open state as shown in FIG. 10B. Even in this wide open state, the curved portion 22c of the flexible printed wiring board 22
It is possible to open it in a relatively easy state without generating so much repulsive force.

As is clear from these explanations, when the lens frame 14 is located at the reference position K, the flexible wiring board 22 in the flexible printed wiring board 22.
Since the e and 22d are in a state where no bending occurs, the flexible wiring boards 22d and
2e are aligned in the vertical direction and are in a state where they cannot be opened. The position corresponding to this reference position K is the connection position between the terminal portion 24 of the flexible printed wiring board 22 and the holder portion 25 of the rear tubular body 11b. That is, it becomes a connection portion with the fixed body side. Note that the reference position K is set with a margin of α so that the lens frame 14 does not collide with other parts when the lens frame 14 is retracted by the arrow b.

Furthermore, regarding the movement of the lens frame 14 by using the flexible printed wiring board 22,
Another example is shown in FIGS. 11 (A) and (B) and FIG. 12 (A).
This will be described with reference to (B). In the case of this example, the flexible printed wiring board 22 opens and closes beyond the top of the lens frame 14, and can be applied when the moving stroke is further large.

That is, as described above, the maximum movement stroke of the lens frame 14 for advancing / retreating with respect to the optical axis direction is set in advance, but in this example, the maximum movement stroke is about the same as in the above-mentioned example. This is the case of a double movement stroke. Then, basically, the lens frame 14 is set at the intermediate position in the maximum movement stroke, that is, the reference position K. When the lens frame 14 is at the reference position K, the flexible wiring board 22e in the flexible printed wiring board 22 is set. , 22d are in a state in which they do not bend at all, that is, they are aligned in the vertical direction and cannot be opened.

Then, first, in FIGS. 11A and 11B, when the lens frame 14 at the reference position K is advanced to the maximum extent from the reference position K as shown by the arrow a, the flexible printed wiring board 22 is The flexible wiring boards 22e and 22d are largely bent from the curved portion 22c as a base point, and
As shown in FIG. 1 (B), they are in wide open states. However, even in such a wide open state, the curved portion 2 of the flexible printed wiring board 22 is
2c can be opened in a relatively easy state without generating a large repulsive force.

As shown in FIGS. 12 (A) and 12 (B), when the lens frame 14 is retracted from the reference position K to the maximum in the direction of arrow b, the flexible printed wiring board 22 is flexible. Wiring boards 22e, 22d
Is largely bent to the opposite side, and as shown in FIG. Even in this case,
As described above, the curved portion 22c of the flexible printed wiring board 22 does not generate a repulsive force so much and can be opened in a relatively easy state. Therefore, in the case of this use example, it is possible to reciprocate back and forth beyond the reference position K.

Next, with reference to the graphs shown in FIGS. 13 and 14, changes in the state of repulsive force when the flexible printed wiring boards 22 and 32 are bent will be described. First,
FIG. 13 is a graph in which the vertical axis represents the repulsive force and the horizontal axis represents the moving position of the lens frame 14. This graph is shown in FIGS. 9 and 1.
In the case of the moving method described in 0, it is a graph showing the change in repulsive force of the flexible printed wiring board when the moving stroke of the lens frame is relatively small, and the line segment d moves in one direction. It shows the change in repulsive force in the stroke. According to this line segment d, the lens frame 14
As the movement of the flexible printed wiring board moves away from the fixed end of the flexible printed wiring board on the lens barrel side, the repulsive force of the flexible printed wiring board increases, and the repulsive force unsuitable range is touched. Therefore, it is desirable to use the flexible printed wiring board in the usable range e, and this range can be set relatively large.

FIG. 14 is a graph in which the vertical axis represents the repulsive force and the horizontal axis represents the movement position of the lens frame 14. This graph is a comparatively reciprocating lens movement described with reference to FIGS. 11 and 12. 9 is a graph showing a change in repulsive force of the flexible printed wiring board, which shows a case where the movement stroke of the frame 14 is large. The line segment f indicates a practical use range and can be used with a low repulsive force as a whole even if the moving stroke is relatively long. Further, the line segment g shows whether or not it can be applied when the moving stroke is further long, and the range that does not touch the repulsive force incompatibility range, that is, the usable range e, remarkably expands. For these reasons, the repulsive force is almost equal to or higher than the conventional caterpillar type.

In the embodiment of the present invention, the flexible printed wiring boards 22 and 32 having a U-shape are formed with the curved portions 22c and 32c as the base points, and the curved portions 22c and 32 are formed.
Terminal part 2 on the side of one flexible wiring board 22d from c
3, 3 to the moving body side, that is, the winding coil 18 of the lens frame
And the other flexible wiring board 22e side terminal portions 24 and 34 are electrically connected to the fixed body side, that is, the power source output terminal of the holder portion 25 of the rear barrel body 11b forming the lens barrel. Printed wiring board 22,
32 can be accommodated within the movement allowable range of the lens frame 14, and therefore the flexible printed wiring boards 22 and 32 do not project outside the movement allowable range of the lens frame 14, and the flexible printed wiring which has been indispensable in the past. The space for the plate can be eliminated, and the lens device can be downsized.

In the embodiment of the present invention, for any of the flexible printed wiring boards 22 and 32,
Although it has been described that it has a U-shaped configuration, it goes without saying that a V-shaped configuration can also be adopted.

[0041]

As described above, in the lens device for the image pickup device according to the present invention, at least the movable part including the lens frame holding the lens and the winding coil, and the movement of the lens frame in the optical axis direction. A lens device for an image pickup device, comprising: a guide shaft for guiding along a guide shaft; and a yoke portion provided with a magnet for acting on the winding coil to move a lens frame on a fixed body side, wherein the movable portion and the fixed body side are provided. A flexible printed wiring board having a U-shape or a V-shape is provided as a power supply wiring to the winding coil, thereby reducing the repulsive force of the flexible printed wiring board. It can be applied to small lens barrels, and in particular, there is no need to provide space for flexible printed wiring boards in the recent small lens barrels aiming for 30CC and 20CC. Therefore, an excellent effect that it is possible to further reduce the size of the small lens barrel.

The flexible printed wiring board is U-shaped or V-shaped and can be arranged within the range of the movement stroke of the lens frame. Moreover, the flexible printed wiring board is installed above the lens frame. Since it is possible to select the position, there is no need to pass through a minute gap beside the iris unit or various fixed parts group, and noises or malfunctions will occur due to interference with the parts to contact Can be avoided, and various excellent effects such as reduction in design restrictions can be achieved.

[Brief description of drawings]

FIG. 1 is a front view showing a lens barrel according to an embodiment of the present invention.

FIG. 2 is a side view showing a lens barrel according to the same embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is an exploded perspective view of the lens device according to the same embodiment.

FIG. 6 is a perspective view for explaining a main part of the lens device.

FIG. 7 is a plan view showing a flexible printed wiring board according to the first embodiment of the present invention.

8A and 8B show a flexible printed wiring board according to a second embodiment of the present invention, FIG. 8A is a plan view, and FIG. 8B is a plan view of only a main part showing a modified example.

FIG. 9 is a view for explaining an example of one movement of the flexible printed wiring board according to the first embodiment,
Figure (A) is a perspective view and Figure (B) is a theoretical view.

10 is a view for explaining another example of the movement of the flexible printed wiring board, FIG. 10 (A) is a perspective view, and FIG. 10 (B) is a theoretical view.

FIG. 11 is a view for explaining another example of the movement of the flexible printed wiring board according to the first embodiment,
Figure (A) is a perspective view and Figure (B) is a theoretical view.

FIG. 12 is a view for explaining another example of movement of another example of the flexible printed wiring board, FIG. 12A is a perspective view, and FIG.

FIG. 13 is a graph showing a change in repulsive force corresponding to an example of one movement of the flexible printed wiring board according to the embodiment of the present invention.

FIG. 14 is a graph showing a change in repulsive force corresponding to another example of movement of the flexible printed wiring board according to the embodiment of the present invention.

FIG. 15 is an explanatory diagram for explaining a conventional technique.

[Explanation of symbols]

11 lens device, 11a front cylinder, 11b rear cylinder, 12 master lens group, 13 lens,
14 lens frame, 15a, 15b guide shaft, 16,
17 engaging part, 18 winding coil, 19 magnet, 20 base yoke, 21 yoke bridge,
22, 32 Flexible printed wiring boards, 22a, 2
2b, 32a, 32b lead pattern, 22c, 32
c curved portion, 22d, 22e, 32d, 32e flexible wiring board 23, 33 one terminal portion, 23a, 2
3b, 24a, 24b Connection terminal, 24, 34 Other terminal part, 30, 40 Boundary part 33a, 33b, 34
a, 34b connection terminal, 25 holder portion, 26 spacing portion, 27 wiring position adjusting portion, 28 first wide portion,
29, 39 second wide portion, 35 small hole, 36 slit-shaped cut-off portion, a arrow indicating the forward direction with respect to the optical axis direction, b arrow indicating the backward direction with respect to the optical axis direction, K reference position.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/225 G02B 7/04 E

Claims (5)

[Claims] 1. A movable part comprising at least a lens and a lens frame holding a winding coil, a guide shaft for guiding the movement of the lens frame along the optical axis direction, and a lens acting on the winding coil. A lens device for an imaging device, having a yoke portion provided with a magnet for moving a frame on a fixed body side, wherein a U-shape is provided between the movable portion and the fixed body side as a power supply wiring to the winding coil. A lens device for an image pickup device, in which a flexible printed wiring board having a V shape or a V shape is provided. 2. The flexible printed wiring board has a connection portion with the fixed body side as a substantially midpoint of a set movement stroke of the lens frame, and the lens frame extends along the optical axis direction beyond the midpoint. The lens device for an image pickup device according to claim 1, wherein the lens device is configured to be capable of reciprocating. 3. A flexible printed wiring board having a plurality of lead patterns and terminal portions for connection at both ends thereof, wherein the flexible printed wiring board has a U shape or a V shape having a curved portion in a substantially middle portion. A flexible printed wiring board used for a lens device, which is formed into a shape having a shape. 4. The flexible printed wiring board has a small hole in the center of the inside of a curved portion for exhibiting a U-shape or V-shape, and slits are formed from the small hole toward the connecting terminal portion side. A flexible printed wiring board for use in a lens device according to claim 3 or 4, characterized in that a strip-shaped separating portion is provided. 5. The U-shaped or V-shaped portion having the curved portion has terminal portions for connection at both ends formed on a hard portion, respectively, and extends from a boundary portion of the hard portion to the curved portion. The flexible printed wiring board used in the lens device according to claim 3 or 4, wherein the lengths of the flexible printed wiring boards are substantially the same.