JPH08201867A - Jiggle detecting sensor mounting structure - Google Patents

Abstract

PURPOSE: To prevent vibration except a jiggle from being transmitted to a detection sensor by fixing a jiggle detecting sensor and a rubber connector in a circuit board with a fixing member through an elastic member while the sensor and the connector being pressed to the circuit board. CONSTITUTION: A rubber connector 5 is installed between a jiggle detecting sensor 31 and a circuit board 3, a rubber member 7 is set on the jiggle detecting sensor 31, and the rubber member 7 is fixed so as to be fastened to the circuit board by two wires 9, 10 whose both ends are attached to and fixed in the circuit board. The jiggle detecting sensor 31 and the wires 9, 10 are not brought into direct contact and also the jiggle detecting sensor 31 and the circuit board 3 are not brought into direct contact with each other. By this fixing method, the detecting sensor 31 is fixed and at the same time the rubber connector is compressed and electrically communicated. With this structure, vibration except the jiggle is prevented from being transmitted to the detecting sensor 31 and moreover signal transmission can be carried out between the jiggle detecting sensor 31 and the circuit board 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a camera shake detection sensor in an apparatus having a camera shake detection unit such as a compact camera, a single lens reflex camera, a video camera.

[0002]

2. Description of the Related Art An angular velocity sensor (or an angular acceleration sensor) detects an angular velocity applied to the camera in order to eliminate the influence of camera shake that occurs when the camera is held by a hand for shooting. ), There is proposed a camera shake correction device configured to offset the image shake on the image plane by displacing the correction lens in the direction opposite to the camera shake direction.

[0003]

This camera shake detection sensor has a plurality of terminals, for example, two terminals for power supply, and two terminals.
A book signal output terminal is provided to receive power from the power supply unit on the circuit board and to output a signal to the control unit.
In the conventional mounting structure of the camera shake detection sensor, these terminals are directly mounted on the circuit board by soldering, and the circuit board is fixed to the camera body with screws. But,
There is a drawback in that shocks caused by shutter and diaphragm operations, AF, and vibrations from the zooming driving unit, which are generated during operation of the camera, are transmitted to the camera shake detection sensor via the circuit board and detected as camera shake.

It is an object of the present invention to provide a mounting structure of a camera shake detection sensor on a circuit board for preventing vibrations other than camera shake from being transmitted to the camera shake detection sensor.

[0005]

In order to achieve the above object, according to the present invention, between a camera shake detection sensor and a circuit board, at least corresponding portions on the front and back sides are electrically conductive and an elastic rubber connector is arranged. The camera shake detection sensor and the rubber connector are fixed to the circuit board while being pressed by a fixing member via an elastic member. As the rubber connector, conductive rubber is embedded in insulating rubber with a spacing smaller than the spacing between the connection terminals of the camera shake detection sensor, or striped with alternating conductive and insulating rubber. A rubber connector or the like can be used. The fixing member may be a wire, a plate and a tightening screw, a clip, or the like.

[0006]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 shows a camera 1 having an image stabilization function to which the present invention is applied. The camera 1 is provided with a taking lens 2, a film F, a shutter button 20, and a control means 50, and an image stabilizing mechanism 40 according to the present invention is arranged between the taking lens 2 and the film F.

Further, as shown in FIG. 2, the camera 1 is provided with camera shake detection sensors 31 and 32 as detection means for detecting camera shake of the photographing lens 2 with respect to a subject.
The camera shake detection sensor 31 detects a vertical motion applied to the camera as an angular velocity.
Detects the horizontal motion applied to the camera as an angular velocity. The camera shake signals detected by the camera shake detection sensors 31 and 32 are sent to the control means 50 of FIG.

The camera shake correction mechanism 40 will be described later so as to cancel the movement of the object image formed by the photographing lens 2 on the film surface based on the camera shake signal detected by the camera shake detection sensors 31 and 32. Correction lens L
Move vertically and horizontally.

FIG. 3 shows an exploded perspective view of a drive mechanism of the correction lens L which constitutes the image stabilization function 40 to which the present invention is applied. The correction lens L is fitted in the lens frame 100, the lens frame 100 is fixed to the first rotating plate 110, and the first rotating plate 110 is attached to the second rotating plate 120. Further, the second rotating plate 120 is attached to a supporting member 130, and this supporting member 130 is fixed to the camera body.

Here, the first rotating plate 110 is the first rotating shaft 1
11, the first rotating shaft 111 is connected to the second rotating plate 120.
By inserting into the shaft hole 124 formed in the first
The rotating plate 110 is rotatable with respect to the second rotating plate 120. Similarly, the second rotating plate 120 has a second rotating shaft 121, and by inserting the second rotating shaft 121 into a shaft hole 131 formed in the support member 130, the second rotating plate 12 is inserted.
0 is rotatable with respect to the support member 130. The shaft hole 124 of the second rotating plate 120 and the second rotating shaft 121 are separated by 90 degrees about the optical axis O of the taking lens.

The lens frame 100 for holding the correction lens L has a large diameter portion 101 and a small diameter portion 102. Lens frame 1
The small diameter portion 102 of 00 is the opening 112 of the first rotating plate 110.
And further penetrates the opening 122 of the second rotating plate 120. The inner diameter of the opening 122 of the second rotating plate 120 is slightly larger than the outer diameter of the small diameter portion 102 of the correction lens frame 100, and the first rotating plate 110 is slightly moved around the first rotating shaft 111 (for example, several millimeters). ) It is set so that it can be rotated.

The first rotating plate 110 has a driving arm 113 having a female screw 115 formed on the side opposite to the first rotating shaft 111.
have. A first correction motor 150 is mounted on the second rotating plate 120, and a screw driving section 151 thereof is screwed onto a male screw 115 of the drive arm 113. Therefore, by rotating the first correction motor 150,
The rotating plate 110 can be rotated around the first rotating shaft 111.

The second rotating plate 120 has a drive arm 123 having a female screw 125 formed on the side opposite to the second rotating shaft 121.
have. A second correction motor 160 is mounted on the support member 130, and a screw drive portion 161 of the second correction motor 160 is screwed onto a female screw 125 of the drive arm 123 of the second rotating plate 120. Therefore, when the second correction motor 160 is rotated, the second rotating plate 120 can be rotated around the second rotating shaft 121.

With the above driving mechanism, the image stabilization mechanism 4
0 moves in a direction that cancels the horizontal and vertical movements of the image due to camera shake.

Next, the camera shake detection sensor 3 according to the present invention.
The mounting method of Nos. 1 and 32 will be described. The camera shake detection sensors 31 and 32 are fixed on the circuit board 3 at right angles to each other, as shown in FIG. Since the mounting method of each camera shake detection sensor is the same, the camera shake detection sensor 31 in the vertical direction will be described here.

The camera shake detection sensors 31, 32 according to the present invention.
FIG. 4 shows a method of mounting the above on the circuit board. As shown in FIG. 4, the rubber connector 5 is inserted between the camera shake detection sensor 31 and the circuit board 3. This rubber connector 5 is characterized in that corresponding portions on the front and back sides are in a conductive state and has elasticity equivalent to that of rubber. In this embodiment,
As shown in FIG. 5, a striped rubber connector in which conductive rubber 5a and insulating rubber 5b are alternately arranged is used. The conductive rubber 5a has a characteristic that it is conducted by being compressed to a thickness of about 80% and does not require soldering.

On the other hand, in the upper part of the camera shake detection sensor 31,
A rubber member 7 for absorbing vibration is placed. The width of the rubber connector 5 and the rubber member 7 is the camera shake detection sensor 3
Greater than 1. In this embodiment, as shown in FIG. 4, the rubber connector 5 is arranged between the camera shake detection sensor 31 and the circuit board 3, the rubber member 7 is arranged on the camera shake detection sensor 31, and both ends are bonded to the circuit board. The rubber member 7 is fixed by tightening the two fixed wires 9 and 10 toward the circuit board. The camera shake detection sensor 31 does not directly contact the wires 9 and 10, and the camera shake detection sensor 31 does not directly contact the circuit board 3. By this fixing method, the camera shake detection sensor 31 is fixed, and the rubber connector 5 is compressed and becomes conductive.

Here, as shown in FIG. 6, the terminals 31a, 31b, 31c, 31d of the camera shake detection sensor 31 and the terminals 3a, 3b, 3c, 3d of the circuit board 3 are located at exactly corresponding positions with the rubber connector 5 sandwiched therebetween. It is in. Further, the direction of the stripes of the rubber connector 5 is set so as to be perpendicular to the arrangement of the terminals. Further, the interval between the conductive rubber portion 5a and the insulating rubber portion 5b of the rubber connector 5 is set to be smaller than the terminals of the camera shake detection sensor 31 and the terminal width of the circuit board 3. Therefore, the terminal 31a of the camera shake detection sensor 31,
Reference numerals 31b, 31c and 31d respectively contact at least one of the conductive rubber portions 5a of the rubber connector 5, and the terminals 3a, 3b, 3c and 3d of the circuit board are connected through the conductive rubber portions 5a. Contact. Therefore,
When the rubber connector 5 is compressed by the wires 9 and 10, the terminals 31 a, 31 b and 31 of the camera shake detection sensor 31.
c, 31d and terminals 3a, 3b, 3c, 3d of the circuit board 3
Conducts via the conductive rubber portion 5a of the rubber connector 5.

Here, since vibrations other than camera shake such as shock, AF, zooming drive, etc. at the time of shutter operation and diaphragm operation have a higher frequency than camera shake, there is elasticity between the circuit board 3 and camera shake detection sensor 31. It is removed by the intervention of the body. On the other hand, since the vibration caused by camera shake has a low frequency, it is not affected by the presence of the elastic body and is detected by the camera shake detection sensor 31. With the above-described configuration, it is possible to prevent a shock in the shutter or diaphragm operation of the camera and vibration from the camera shake correction drive unit, AF, zooming drive unit, or the like from being transmitted to the camera shake detection sensor 31, and yet to detect the camera shake. Signals can be transmitted between the sensor 31 and the circuit board 3. This improves the accuracy of detecting a camera shake.

In the present embodiment, as shown in FIG. 5, a striped rubber connector having a conductive rubber portion 5a and an insulating rubber portion 5b which are smaller than the size of the camera shake detection sensor terminal and the circuit board terminal is used. However, as shown in FIG. 7, a rubber connector matching the size and spacing of the terminals may be used.

FIG. 8 shows a second embodiment of the present invention. In the second embodiment, the camera shake detection sensor 31 is attached to the rubber member 7 from both sides.
The camera shake detection sensor 31 and the circuit board 3
The rubber connector 5 is inserted between and and is fixed to the circuit board 3 using the wires 9 and 10. The camera shake detection sensor 32 is similarly fixed. Also in this second embodiment, the wires 9, 10 are
Since the camera shake detection sensors 31 and 32 do not come into direct contact with each other,
Without transmitting unnecessary vibration to the camera shake detection sensor 31,
The camera shake detection sensors 31 and 32 can be mounted.

FIG. 9 shows a third embodiment of the present invention. In the third embodiment, the camera shake detection sensor 31 is sandwiched between the rubber connector 5 and the rubber member 7, and the other camera shake detection sensor 32 is similarly sandwiched between the rubber connector 6 and the rubber member 8, which are connected to the plate 42 and the circuit board 3. And tighten with screws and nuts. In the third embodiment, the plate 42
Since the camera shake detection sensors 31 and 32 do not come into direct contact with each other,
It has a feature that the camera shake detection sensors 31 and 32 can be fixed at the same time without transmitting unnecessary vibration.

FIG. 10 shows a fourth embodiment of the present invention. Fourth
Like the first embodiment, the embodiment has a feature that the camera shake detection sensor 31 is sandwiched between the rubber connector 5 and the rubber member 7 and fixed by the clip 45 instead of the wires 9 and 10 of the first embodiment. Also in the fourth embodiment, since the clip 45 does not directly contact the camera shake detection sensors 31 and 32, unnecessary vibration is not transmitted to the camera shake detection sensor 31.
Further, it has a feature that the camera shake detection sensors 31 and 32 can be mounted by a simple operation.

[0024]

As described above, according to the present invention,
With the structure that attaches the camera shake detection sensor to the circuit board by sandwiching it with the rubber connector and elastic member, it is possible to prevent vibrations other than camera shake from being transmitted to the camera shake detection sensor.
Moreover, a signal can be transmitted between the camera shake detection sensor and the circuit board. This improves the accuracy of detecting a camera shake.

[Brief description of drawings]

FIG. 1 is a side view showing an image stabilization camera according to the present invention.

FIG. 2 is a front view showing an image stabilizing camera according to the present invention.

FIG. 3 is a perspective view showing a driving mechanism of a correction lens according to the present invention.

FIG. 4 is a perspective view showing a first embodiment of the present invention.

FIG. 5 is a perspective view showing a rubber connector according to the present invention.

FIG. 6 is a perspective view showing a first embodiment of the present invention.

FIG. 7 is a perspective view showing a rubber connector according to the present invention.

FIG. 8 is a perspective view showing a second embodiment of the present invention.

FIG. 9 is a perspective view showing a third embodiment of the present invention.

FIG. 10 is a sectional view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Camera 2 Photographic Lens 3 Circuit Board 5 Rubber Connector 5a Conductive Rubber 5b Insulating Rubber 7,8 Rubber Member 9,10 Wire 31, 32 Shake Detection Sensor 40 Shake Correction Mechanism 42 Plate 45 Clip 50 Control Means 100 Lens Frame 110th 1 Rotating Plate 120 Second Rotating Plate 130 Supporting Member 150 First Correction Motor 160 Second Correction Motor

Claims (6)

[Claims] 1. A structure for mounting a camera shake detection sensor of a camera on a circuit board, wherein at least corresponding portions on the front and back sides are electrically conductive and elastic between the camera shake detection sensor and the circuit board. The mounting structure of the camera shake detection sensor, wherein the camera shake detection sensor and the rubber connector are fixed to the circuit board while being pressed by a fixing member via an elastic member. 2. The rubber connector according to claim 1, wherein conductive rubber is embedded in insulating rubber at a distance smaller than the distance between the connection terminals of the camera shake detection sensor. Mounting structure of the described camera shake detection sensor. 3. The mounting structure of a camera shake detection sensor according to claim 1, wherein the rubber connector is a striped rubber connector in which conductive rubber and insulating rubber are alternately arranged. 4. The mounting structure of a camera shake detection sensor according to claim 1, wherein the fixing member is a wire. 5. The fixing member is a plate and a tightening screw, and the plate is fixed to the circuit board while being pressed by the tightening screw.
The mounting structure of the camera shake detection sensor described in. 6. The fixing member is a clip made of a plate member bent in a U shape.
The mounting structure of the camera shake detection sensor described in.