TWI485440B - Optical image stabilization device - Google Patents

Description

Optical image stabilization device

The present invention relates to an optical image stabilization device, and more particularly to an optical image stabilization device capable of reducing displacement friction.

With the evolution of the times, people have become accustomed to taking pictures and recording life. When engaging in activities such as tourism, exhibitions or food gatherings, all of them take the camera to record the beauty of each moment. However, when photographing, the photographer's hand is often shaken, causing the light to enter the internal optical imaging device to shift, resulting in poor image quality of the photo, and when it is desired to re-photograph, the most worthwhile moment has been missed.

In the optical image stabilization device 2 of the prior art camera, a plurality of balls 21 are disposed between a moving portion 22 and a supporting portion 23, and the moving portion 22 is radially displaced relative to the supporting portion 23 by the balls 21 to achieve stable optics. The effect of the image is shown in Figure 1. However, when the radial displacement of the moving portion 22 is adjusted in this manner, the contact point between the ball 21 and the moving portion 22 and the supporting portion 23 generates a frictional force, and the radial displacement of the moving portion 22 is less smoothly adjusted. Furthermore, considering that the molding process of the ball 21 needs to be spherical, the material selection in the process needs to be metal, and the manufacturing cost is high. Therefore, the camera is greatly limited in the application of the optical image stabilization device, which is one of the major problems that need to be overcome.

As described above, the inventors of the present invention contemplate and design an optical image stabilization device In order to improve the lack of existing technology, and to enhance the implementation of the industry.

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide an optical image stabilization device for solving the problem of large frictional force of a sliding member of an optical image stabilization device of the prior art.

In accordance with the purpose of the present invention, an optical image stabilization device is provided that includes a moving portion, a plurality of pins, and a support portion. The moving portion has a plurality of guide holes. The plurality of pins respectively correspond to a plurality of via holes that are disposed through the moving portion. The support portion is disposed on one side of the moving portion, and one end of the plurality of pins abuts against one side of the support portion.

Preferably, the plurality of guide holes are respectively connected to the center of the moving portion to form an imaginary straight line, and the angle between the imaginary straight lines is equal.

Preferably, one of the plurality of pins is in a point contact manner against one side of the support portion.

Preferably, the plurality of pins may include a through portion and a contact portion. The through portion has a column shape and is disposed through the guide hole of the moving portion. The contact portion is spherical or hemispherical, and the contact portion is worn at one end. The connecting portion is connected, and the other end is abutted against one side of the supporting portion in a point contact manner.

Preferably, the plurality of pins may have equal axial lengths.

Preferably, the optical image stabilization device further comprises a fixing plate disposed on the other side of the moving portion relative to the support portion, and the other end of the plurality of pins abuts against the fixing plate.

Preferably, the optical image stabilization device further includes a plurality of fixing members, the fixing plate may further have a plurality of first fixing holes, and the supporting portion may further have a plurality of second fixing holes and And a plurality of fixing members respectively corresponding to the plurality of first fixing holes and the plurality of second fixing holes, so that the moving portion is located in the accommodating space.

Preferably, the optical image stabilization device further includes a plurality of limiting rods, and the moving portion may further have a plurality of limiting holes, wherein the plurality of limiting rods are respectively disposed in the plurality of limiting holes, and the plurality of limiting holes are respectively One end of the pole is connected to the support.

Preferably, the plurality of guiding holes of the moving portion face the periphery of the opening of one of the supporting portions to form a guiding angle, so that the opening to the inner wall of the guiding hole is formed to be wide and tapered.

Preferably, the inner diameter of the plurality of guiding holes of the moving portion may be greater than 0.05 mm of the outer diameter of the through portion of the lead.

As described above, the optical image stabilization device according to the present invention may have one or more of the following advantages:

(1) The optical image stabilization device of the present invention is configured to pass through a guide hole of a moving portion by a pin instead of a conventional rolling through a ball, so that when the moving portion is radially displaced, the friction is only cited. The contact point between the contact portion of the foot and the support portion is generated, so that the frictional force when the moving portion is displaced radially can be reduced, so that the adjustment of the stable optical image is smoother.

(2) The material for manufacturing the lead used in the optical image stabilization device of the present invention is not limited to metal, and the manufacturing cost can be reduced.

1, 2‧‧‧ Optical Image Stabilizer

11‧‧‧ pin

111‧‧‧ Department of Wear

112‧‧‧Contacts

12, 22‧‧‧moving department

121‧‧‧ Guide hole

122‧‧‧Limited holes

123‧‧‧ Center

124‧‧‧ lead angle

13‧‧‧Support

131‧‧‧ accommodating space

132‧‧‧Second fixing hole

14‧‧‧ fixed plate

141‧‧‧First fixing hole

15‧‧‧Fixed parts

16‧‧‧Limited rod

21‧‧‧ balls

‧‧‧‧ angle

Figure 1 is a schematic diagram of a prior art optical image stabilization device.

Figure 2 is a first schematic view of an embodiment of the optical image stabilization device of the present invention.

Figure 3 is a second schematic view of an embodiment of the optical image stabilization device of the present invention.

Figure 4 is a third schematic view of an embodiment of the optical image stabilization device of the present invention.

Figure 5 is a fourth schematic view of an embodiment of the optical image stabilization device of the present invention.

Figure 6 is a fifth schematic view of an embodiment of the optical image stabilization device of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

The optical image stabilization device 1 of the present invention can be applied to an optical image stabilization device in an imaging device such as an imaging lens, a digital camera, a monocular camera, or a digital video camera, but the practical application range is still Not only is this limited.

Please refer to Figure 2 and Figure 3 together. 2 is a first schematic view of an embodiment of an optical image stabilization device of the present invention; and FIG. 3 is a second schematic view of an embodiment of the optical image stabilization device of the present invention. As shown in the figure, the optical image stabilization device 1 includes a moving portion 12, a plurality of pins 11, a support portion 13, a fixing plate 14, a plurality of fixing members 15, and a plurality of limiting rods 16. The moving portion 12 has a plurality of guiding holes 121, and the through portions 111 of the plurality of pins 11 are respectively disposed therein. The support portion 13 and the fixing plate 14 are respectively located on both sides of the moving portion 12, and the contact portion 112 of the plurality of pins 11 abuts against one surface of the support portion 13. The fixing plate 14 has a plurality of first fixing holes 141, and the supporting portion 13 has a plurality of second fixing holes 132 and an accommodating space 131, and the plurality of fixing members 15 respectively corresponding to the plurality of first fixing holes 141 and a plurality of second fixing holes 132, The fixing plate 14 and the support portion 13 can be fixed to each other. The moving portion 12 can be disposed in the accommodating space 131 of the support portion 13. In addition, the moving portion 12 has a plurality of limiting holes 122. The plurality of limiting rods 16 are respectively disposed therein, and one end of the plurality of limiting rods 16 is connected to the supporting portion 13. The material of the lead 11 may include metal or plastic, but is not limited thereto.

It is worth mentioning that the inner diameter of the plurality of guiding holes 121 of the moving portion 12 is larger than the outer diameter of the through portion 111 of the plurality of pins 11. The axial lengths of the plurality of pins 11 are equal and the supporting moving portion 12 is The support portion 13 is accommodated in the space 131, whereby the moving portion 12 can be radially displaced in the accommodating space 131 to achieve the effect of stabilizing the optical image. In addition, a plurality of limiting rods 16 are disposed in the plurality of limiting holes 122 of the moving portion 12, and one end of the plurality of limiting rods 16 is connected to the supporting portion 13 to limit the radial displacement of the moving portion 12, thereby It does not cause excessive movement and affects the stability of the optical image.

Incidentally, the fixing plate 14 causes the moving portion 12 to be located in the accommodating space 131 of the support portion 13 by the fixing member 15, and restricts the axial displacement of the moving portion 12, thereby causing the moving portion 12 to stabilize the optical image. The process of radial displacement does not produce axial displacement and affects the action of focusing.

Please refer to FIG. 4, which is a third schematic diagram of an embodiment of the optical image stabilization device of the present invention. As shown in the figure, the optical image stabilization device 1 of the present invention is disposed in the moving portion 12 by the through portion 111 of the lead 11. When the moving portion 12 is radially displaced, the insertion portion of the pin 11 is used. Since the 111 system moves in synchronization with the moving portion 12, no frictional force is generated. With respect to the optical image stabilization device 2 of the conventional ball 21 provided as shown in FIG. 1, when the moving portion 22 of the optical image stabilization device 2 is subjected to radial displacement, the ball 21 will be moved relative to the moving portion 22. The rotation is such that frictional force is generated between the ball 21 and the moving portion 22 and the support portion 23. The optical image of the present invention is stable When the moving portion 12 of the device 1 is radially displaced, the frictional force is generated only at the contact point of the contact portion 112 of the pin 11 with the support portion 13. Therefore, since the friction point between the pin 11 and other members is smaller than that of the ball 21, the frictional force of the sum is relatively small, so that the radial displacement of the moving portion 12 of the optical image stabilization device 1 of the present invention can be made smoother. .

Please refer to FIG. 5, which is a fourth schematic diagram of an embodiment of the optical image stabilization device of the present invention. In a preferred embodiment, the plurality of via holes 121 of the optical image stabilization device 1 are respectively connected to the center 123 of the moving portion 12 to form an imaginary straight line, and the angle α between the imaginary straight lines is equal. That is, since a plurality of pins 11 are bored in the via holes 121, the plurality of pins 11 are respectively connected to the center 123 of the moving portion 12 to form an imaginary straight line, and the angle α between the imaginary straight lines is equal. Since the angle α between the imaginary straight lines is equal, the moving portion 12 can be stably radially displaced in the accommodating space 131 of the support portion 13. In more detail, since the angle α between the imaginary straight lines formed by the plurality of pins 11 and the center 123 of the moving portion 12 is equal, when the moving portion 12 is radially displaced, the plurality of pins 11 and the supporting portion 13 are The resulting resistance is relatively uniform, so that the moving portion 12 can perform radial displacement relatively stably.

Please refer to FIG. 6, which is a fifth schematic diagram of an embodiment of the optical image stabilization device of the present invention. As shown in the figure, a plurality of guide holes 121 of the moving portion 12 of the optical image stabilization device 1 face the peripheral edge of the opening of the support portion 13, and a guide angle 124 can be formed, so that the opening to the inner wall of the guide hole 121 has a shape of a wide tapered shape. . In the process of inserting the pin 11 into the guiding hole 121, the guiding angle 124 can reach the guiding pin 11 and enter the guiding hole 121, and can avoid the wear of the pin 11 and the moving part 12 during the insertion process. Therefore, the process of inserting the pin 11 is smoother.

In summary, the optical image stabilization device of the present invention mainly replaces the balls used in the prior art by pins, and when the moving portion is radially displaced, the pin portion is moved and moved. The part will move synchronously without generating friction, so that the frictional force is only generated between the contact portion of the pin and the support portion, thereby making the radial displacement of the moving portion smoother, thereby improving the effect of stabilizing the optical image.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧Optical image stabilization device

11‧‧‧ pin

111‧‧‧ Department of Wear

112‧‧‧Contacts

12‧‧‧Mobile Department

121‧‧‧ Guide hole

122‧‧‧Limited holes

13‧‧‧Support

131‧‧‧ accommodating space

132‧‧‧Second fixing hole

14‧‧‧ fixed plate

141‧‧‧First fixing hole

15‧‧‧Fixed parts

16‧‧‧Limited rod

Claims (10)

An optical image stabilization device comprising: a moving portion having a plurality of guiding holes; a plurality of pins corresponding to the plurality of guiding holes respectively disposed in the moving portion; and a supporting portion disposed on the One side of the moving part, and one end of the plurality of pins is abutted against one side of the supporting part. The optical image stabilization device according to claim 1, wherein the plurality of guide holes are respectively connected with the center of the moving portion to form an imaginary straight line, and the angle between each of the imaginary straight lines is equal. The optical image stabilization device of claim 1, wherein one of the plurality of pins is in a point contact manner against one side of the support portion. The optical image stabilization device of claim 3, wherein the plurality of pins comprise a through portion and a contact portion, the through portion is columnar, and the through hole is disposed in the moving portion The guiding hole has a spherical shape or a hemispherical shape, and one end of the contact portion is connected to the through portion, and the other end abuts against one surface of the supporting portion in a point contact manner. The optical image stabilization device of claim 1, wherein the plurality of pins have equal axial lengths. The optical image stabilization device of claim 1, further comprising a fixing plate disposed on the other side of the moving portion relative to the supporting portion, and the other end of the plurality of pins is abutted against the fixing board. An optical image stabilization device according to claim 6, which further comprises plural The fixing plate further has a plurality of first fixing holes, and the supporting portion further has a plurality of second fixing holes and an accommodating space, wherein the plurality of fixing members are respectively corresponding to the plurality of first fixing holes The fixing hole and the plurality of second fixing holes are arranged such that the moving portion is located in the accommodating space. The optical image stabilization device of claim 7, further comprising a plurality of limiting rods, wherein the moving portion further has a plurality of limiting holes, wherein the plurality of limiting rods are respectively corresponding to the plurality of limiting rods One of the limiting holes, and one end of the plurality of limiting rods is connected to the supporting portion. The optical image stabilization device of claim 1, wherein the plurality of guide holes of the moving portion face a periphery of the opening of the support portion to form a lead angle, and the opening is to the inner wall of the guide hole The width is tapered. The optical image stabilization device of claim 4, wherein an inner diameter of the plurality of via holes of the moving portion is greater than 0.05 mm of an outer diameter of the through portion of the plurality of pins.