TWI459031B - Zoom lens structure and image pickup device thereof - Google Patents

Description

Lens zoom structure and image capturing device thereof

The invention relates to a lens zooming structure and an image capturing device thereof, in particular to a lens zooming structure and a video capturing method thereof for driving a driving screw by using a driving unit for zooming or focusing. Device.

With the development of digital camera technology, most of the people in today's society are accustomed to using digital camera phones, digital cameras, digital cameras, digital monocular cameras or stereo camera cameras to record the bits and pieces of life, so the image capture device has become a society today. A very important and indispensable product.

In the current market, most cameras have zoom and focus functions. The zoom function of the camera allows the user to adjust the range of the camera's viewing angle at the same position in response to the camera's needs, and zoom in through the camera's viewing angle range. Or shrinking to overcome the problem of the range of viewing angles that can not be achieved by users in the environment, so the demand and development of zoom lenses on the market has become an increasingly popular trend for the mainstream and users. However, the current zoom modes are mostly classified into two types: a sunken type (outer zoom type) or a periscope type (inside zoom type), in which the outer zoom type lens is telescopically movable to extend to the outside of the body, but most of the external zoom type The lens is set so that its axis is perpendicular to the body, thus making the camera in the design, hindering the lens, its machine The thickness of the body has not been easily thinned or reduced. In contrast, the periscope lens mostly performs zooming and focusing operations inside the body, and it can be disposed in the body by using an additional set of mirrors so that the lens can be parallel to the body. Therefore, the design of the thickness of the body can be reduced to the width of the lens without any other factors, thereby reducing the thickness of the camera.

However, in the conventional lens zoom and focus mode, most of the two motors are used to drive the lens for zooming and focusing, and with two motors, the lens takes up most of the design space. Due to the use of two motors, the design of the product is difficult to further miniaturize and reduce the thickness. There is also a part of the design to achieve the purpose of miniaturization and thinning of the product by using a micro motor. However, the price of the micro-motor is much higher than that of the commonly used motor, which also causes the problem of excessive product prices.

As described above, the inventors of the present invention have conceived and designed a lens zooming structure and an image capturing device thereof to be applied to a periscope lens, and to improve the lack of the prior art, thereby enhancing the industrial use and utilization.

In view of the above problems in the prior art, it is an object of the present invention to provide a lens zoom structure and an image capturing device thereof, which solve the problem that the periscope lens of the prior art is not easily miniaturized, thinned, or costly.

According to an object of the present invention, a lens zoom structure is provided, comprising: a housing, a driving screw, a plurality of guiding rods, a zoom mirror carrier and a focusing mirror carrier. The housing has an accommodation space. One end of the driving screw is connected to one side of the accommodating space. The driving screw has a driving portion fixed to the end adjacent to the driving screw and adjacent to the driving The other end of the screw is fixed with a focus driving portion, and the zoom portion is provided between the driving portion and the focus driving portion. The zoom thread portion is movably latched with a zoom drive member, and the zoom drive member has a projection. The plurality of guide bars are a cylindrical structure. The zoom mirror carrier is located on one side of the driving screw and has at least one first through hole, a zoom contact portion and a zoom bearing portion. A plurality of guiding rods are disposed through at least one first through hole. The zoom contact portion is provided corresponding to the protruding portion. The zoom bearing rests on the zoom drive. The focusing mirror carrier is located on the side of the driving screw and has at least one second through hole and a focusing contact portion. The plurality of guiding rods are provided with at least one second through hole, and the focusing mirror carrier extends to the focusing driving portion to provide a focusing contact portion, and the focusing contact portion bears against the focusing driving portion. When the drive screw rotates, the focus mirror carrier and the zoom mirror carrier are axially displaced along the drive screw for zooming or focusing.

Wherein, when the protruding portion and the zoom contact portion are not touched, the zoom driving member can rotate along with the driving screw, and the zoom driving member does not perform axial displacement.

Wherein, when the protruding portion touches the zoom contact portion, the zoom driving member may not rotate along with the driving screw, and the zoom driving member performs axial displacement; the zoom driving member pushes against the zoom bearing portion to interlock the zoom lens carrier Axial displacement.

Wherein, the focus driving portion may further comprise a spiral bevel, and when the focus contact portion is displaced along the spiral bevel, the focus mirror carrier generates axial displacement.

The lens zoom structure further includes at least one first elastic member and at least one second elastic member. The at least one first elastic member and the at least one second elastic member are sleeved on the plurality of guide rods. At least one first elastic member is located between the side wall and the zoom mirror carrier. At least one second elastic member is located between the side wall and the focusing mirror carrier.

Wherein the length of the at least one first elastic member not being telescopic may be greater than the length of the side wall and the zoom mirror The maximum spacing between shelves. The length of the at least one second elastic member that is not telescopic may be greater than the maximum distance between the side wall and the focusing mirror carrier.

Wherein, when the driving screw rotates, the plurality of guiding rods respectively pass through the at least one first through hole and the at least one second through hole, so that the focusing mirror carrier and the zoom mirror carrier are guided by the plurality of guiding rods to perform Axial displacement.

In addition, according to the purpose of the present invention, an image capturing device is further provided, comprising: a housing, a driving screw, a plurality of guiding rods, a zoom mirror carrier, a focusing mirror carrier and a driving unit. The housing has an accommodating space, and a first zoom lens group is disposed on one side wall. One end of the driving screw is connected to the side wall of the accommodating space. The driving screw has a driving portion fixed to the end of the driving screw, and a focusing driving portion is disposed adjacent to the other end of the driving screw, and a zooming screw portion is disposed between the driving portion and the focusing driving portion. The zoom thread portion is movably latched with a zoom drive member and has a projection. The plurality of guide bars are a cylindrical structure. The zoom lens carrier is located on one side of the driving screw and has at least one first through hole, a zoom contact portion, a zoom bearing portion and a second zoom lens group. A plurality of guiding rods are disposed through the at least one first through hole. The zoom contact portion is provided corresponding to the protruding portion. The zoom bearing rests on the zoom drive. The second zoom lens group corresponds to the first zoom lens group setting. The focusing mirror carrier is located on the side of the driving screw and has at least one second through hole, a focusing contact portion and a focusing mirror group. A plurality of guiding rods are disposed through the at least one second through hole. The focus lens holder extends to the focus drive portion to provide a focus contact portion, and the focus contact portion bears against the focus drive portion. The focusing mirror group corresponds to the first zoom lens group setting. The drive unit is located at the end of the drive screw and engages the drive portion. When the driving unit drives the driving screw to rotate, the focusing mirror carrier and the zoom mirror carrier are respectively axially displaced along the driving screw for zooming or focusing.

Wherein, when the protruding portion and the zoom contact portion are not touched, the zoom driving member rotates along with the driving screw, and the zoom driving member does not perform axial displacement.

Wherein, when the protruding portion touches the zoom contact portion, the zoom driving member does not rotate along with the driving screw, and the zoom driving member performs axial displacement; the zoom driving member pushes against the zoom bearing portion to interlock the zoom mirror carrier to perform the shaft The displacement is further shifted relative to the first zoom lens group and the second zoom lens group to perform a zooming operation.

The focus drive unit includes a spiral bevel. When the focus contact portion is displaced along the spiral slope, the focus lens carrier generates an axial displacement, thereby causing the focus group and the first zoom lens group and the second zoom lens group to be relatively displaced to perform the focusing operation.

The image capturing device further includes at least one first elastic member and at least one second elastic member. The at least one first elastic member and the at least one second elastic member are sleeved on the plurality of guide rods. At least one first elastic member is located between the side wall and the zoom mirror carrier. At least one second elastic member is located between the side wall and the focusing mirror carrier.

The length of the at least one first elastic member that is not telescopic may be greater than the maximum distance between the sidewall and the zoom mirror carrier. The length of the at least one second elastic member that is not telescopic may be greater than the maximum distance between the side wall and the focusing mirror carrier.

When the driving screw rotates, the plurality of guiding rods respectively pass through the at least one first through hole and the at least one second through hole, so that the focusing mirror carrier and the zoom mirror carrier are caused by the plurality of The guide rod is guided for axial displacement.

In addition, according to the purpose of the present invention, a lens zoom structure is further provided, comprising: a housing, a driving screw, a plurality of guiding rods, a zoom mirror carrier and a focusing mirror carrier. The housing has an accommodation space. The driving screw is a rod body with a threaded structure, and one end thereof is connected to one side wall of the accommodating space. The drive screw has a driving portion fixed to Adjacent to the end of the drive screw, and the rod movable pin of the drive screw is provided with a carrier drive member. The carrier driving member has a spiral inclined surface and a flat surface, and both ends of the spiral inclined surface are respectively provided with a stopping portion. The plurality of guide bars are a cylindrical structure. The zoom mirror carrier is located on one side of the driving screw and has at least one first through hole and a zoom bearing portion. A plurality of guiding rods are disposed through the at least one first through hole. The zoom bearing rests on the plane. The focusing mirror carrier is located on the side of the driving screw and has at least one second through hole and a focusing contact portion. A plurality of guiding rods are disposed through the at least one second through hole. The focusing mirror carrier extends to the carrier driving member to provide a focusing contact portion, and the focusing contact portion bears against the spiral inclined surface. When the drive screw rotates, the focus mirror carrier and the zoom mirror carrier are axially displaced along the drive screw for zooming or focusing.

Wherein, when the stopping portion does not touch the focusing contact portion, the carrier driving member rotates with the driving screw, and the carrier driving member does not perform axial displacement.

Wherein, when the stopping portion touches the focusing contact portion, the carrier driving member does not rotate along with the driving screw, the carrier driving member performs axial displacement, and the carrier driving member pushes against the zoom bearing portion to interlock the zoom lens carrier Perform axial displacement.

Wherein, when the focus contact portion is displaced along the spiral slope, the focus lens carrier generates an axial displacement.

The lens zoom structure further includes at least one third elastic member. One end of the at least one third elastic member is fixed to the zoom lens carrier, and the other end of the third elastic member is fixed to the focusing lens carrier, and the length of the at least one third elastic member is not less than that between the zoom lens carrier and the focusing mirror carrier. Minimum spacing.

Wherein, when the driving screw rotates, the plurality of guiding rods respectively pass through the at least one first through hole and the at least one second through hole, so that the focusing mirror carrier and the zoom mirror carrier are recovered. Several guides are guided for axial displacement.

As described above, the lens zoom structure and the image capturing device thereof according to the present invention may have one or more of the following advantages:

(1) The zoom structure of the lens and the image capturing device thereof can drive the zoom screw portion of the screw and the focus driving portion, so that the lens zoom structure can be zoomed or focused using only a single driving unit, thereby reducing the use of the driving unit. The number and the required control circuit can be used to achieve miniaturization and thinning of the product.

(2) The zoom structure of the lens and the image capturing device thereof can complete the zooming or focusing movement of the lens zooming structure by using a single driving unit and corresponding control circuit, thereby effectively reducing the product cost. .

1‧‧‧Lens zoom structure

10‧‧‧shell

101‧‧‧ accommodating space

1011‧‧‧One side wall of the accommodation space

102‧‧‧First zoom lens group

11‧‧‧ drive screw

111‧‧‧ Drive Department

112‧‧‧Focus Drive Department

1121‧‧‧Spiral bevel of the focus drive

113‧‧‧Zoom thread

12‧‧‧Zoom drive

121‧‧‧Protruding

13‧‧‧Guide bars

14‧‧‧Zoom Mirror Carrier

141‧‧‧ first through hole

142‧‧‧Zoom contact

143‧‧‧Zoom bearing

144‧‧‧Second zoom lens group

15‧‧‧ Focusing mirror carrier

151‧‧‧Second through hole

152‧‧‧Focus contact

153‧‧ ‧ Focusing mirror group

16‧‧‧Mirror

17‧‧‧Drive unit

18‧‧‧First elastic parts

19‧‧‧Second elastic parts

20‧‧‧Carriage drive parts

201‧‧‧Spiral bevel of carrier drive

2011, 2012 ‧ ‧ stop

202‧‧‧ Plane of carrier drive

21‧‧‧ Third elastic parts

3‧‧‧Image capture device

30‧‧‧Image sensing components

31‧‧‧Control button

32‧‧‧Processing unit

1 is a combination diagram of a lens zoom structure of the present invention; FIG. 2 is a schematic diagram of a lens zoom structure of the present invention; and FIG. 3 is a first schematic view of a first embodiment of a lens zoom structure of the present invention; 4 is a second schematic view of a first embodiment of a lens zoom structure of the present invention; FIG. 5 is a first schematic view of a second embodiment of the lens zoom structure of the present invention; and FIG. 6 is a view of the present invention A second schematic view of a second embodiment of the lens zooming structure.

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 supplementary instructions. It is not necessarily the true proportion and precise configuration after the implementation of the invention, so it should not be attached. Interpretation and limitation of the relationship between the schema and the layout of the drawings. The scope of the invention in the actual implementation is described in the first place.

The lens zoom structure and the image capturing device thereof of the present invention can mainly be driven by a driving unit to drive a driving screw to rotate or focus the zoom lens carrier or the focusing mirror carrier to perform zooming or focusing, which can be applied to Digital camera, smart camera phone, monocular camera, stereo camera and other image capture devices or interchangeable lens camera lenses, but the actual scope of application is not limited by this.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a combination diagram of the lens zoom structure of the present invention; FIG. 2 is a schematic diagram of the lens zoom structure of the present invention. As shown in the figure, the lens zoom structure 1 of the present invention can be applied to a periscope camera lens, comprising: a housing 10, a driving screw 11, a zoom driving member 12, a plurality of guiding rods 13, and a zoom lens. The carrier 14 , a focusing mirror carrier 15 , a mirror 16 and a driving unit 17 . The housing 10 has an accommodating space 101, and a first zoom lens group 102 is embedded on one side wall 1011 of the accommodating space 101. The driving screw 11 is disposed inside the accommodating space 101 of the housing 10, and one end thereof is connected to one side wall of the accommodating space 101. The drive screw 11 has a driving portion 111 fixed to the end adjacent to the driving screw 11 , and a focusing driving portion 112 is fixed adjacent to the other end of the driving screw 11 , and between the driving portion 111 and the focusing driving portion 112 . A zoom thread portion 113. The zoom driving member 12 is movably bolted to the zoom screw portion 113, and the zoom driving member 12 has a protruding portion 121. The zoom lens carrier 14 is located on one side of the driving screw 11 and has at least one first through hole 141, a zoom contact portion 142, a zoom bearing portion 143 and a second zoom lens group 144. The zoom contact portion 142 is disposed corresponding to the position of the protruding portion 121. The zoom bearing portion 143 bears against one side of the zoom drive member 12. The focusing mirror carrier 15 is located on the side of the driving screw 11 and has at least one second through hole 151, a focusing contact portion 152 and a focusing mirror group. 153. The focus lens holder 15 extends to the focus drive unit 112 to provide a focus contact portion 152 , and the focus contact portion 152 bears against the focus drive unit 112 . The plurality of guiding rods 13 respectively correspond to the number of the at least one first through hole 141 and the at least one second through hole 151 , and respectively pass through the at least one first through hole 141 and the at least one second through hole 151 . The two ends of the plurality of guiding rods 13 can be connected to one side wall 1011 and the other side wall of the accommodating space 101.

The mirror 16 can be disposed outside the housing 10 and adjacent to the first zoom lens group 102. The mirror 16 can be a flat surface lens, and the mirror 16 can be at an angle of 45 degrees with the image light of the object, so that the image light of the object can be reflected by the mirror 16 to enter the first A zoom lens group 102. The imaging is performed by the displacement changes of the first zoom lens group 102, the second zoom lens group 144, and the focus lens group 153. It should be noted that the first zoom lens group 102, the second zoom lens group 144, and the focus lens group 153 are disposed corresponding to each other, that is, all of the three are located on the optical axis refracted by the mirror 16. In practical applications, the axis of the driving screw 11 can be parallel to the optical axis to achieve the purpose of zooming by the relative displacement of the first zoom lens group 102 and the second zoom lens group 144. The focus is achieved by the relative displacement of the focusing mirror group 153 and the zoom lens group (the first zoom lens group 102 and the second zoom lens group 144).

The drive unit 17 is located at the end of the drive screw 11 and meshes with the drive portion 111, which may be a direct drive motor or a stepper motor. When the driving unit 17 drives the driving screw 11 to rotate, the zoom lens carrier 14 and the focusing mirror carrier 15 are respectively axially displaced along the axial direction of the driving screw 11 to make the first zoom lens group 102 and the second zoom lens The group 144 produces a relative movement or a focus lens group 153 and a zoom lens group (the first zoom lens group 102 and the second zoom lens group 144) are relatively moved to achieve zooming or focusing. The driving unit 17 and the driving portion 111 can be a pair of orthogonal helical gears or a general spur gear with a helical gear, etc., which is in the technical field. Usually the knowledge should be clear, so I won't go into details here.

In more detail, when the driving unit 17 drives the driving screw 11 to rotate in the forward direction, the zoom driving member 12 first rotates in the forward direction with the driving screw 11. When the protruding portion 121 of the zoom driving member 12 touches one side of the zoom contact portion 142 of the zoom lens carrier 14, the zoom driving member 12 does not rotate along with the driving screw 11, and turns along the zoom thread portion 113. The threaded helical bevel 1121 is axially displaced. When the zoom driving member 12 is axially displaced, the zoom bearing portion 143 of the zoom lens carrier 14 is pushed by the zoom driving member 12 to interlock the zoom lens carrier 14 to be axially displaced along the driving screw 11. When the zoom lens carrier 14 is axially displaced, the second zoom lens group 144 is displaced relative to the first zoom lens group 102 fixed to the housing 10 to perform a zooming operation. When the zooming action is completed, the driving unit 17 drives the driving screw 11 to rotate in the reverse direction, and the protruding portion 121 does not touch the zoom contact portion 142 of the zoom lens carrier 14, and the zoom driving member 12 rotates in the reverse direction with the driving screw 11, and It is not axially displaced, and the zoom lens carrier 14 is not axially displaced, so that the first zoom lens group 102 and the second zoom lens group 144 maintain the relative distance when the zooming operation is completed. At this time, the focus contact portion 152 of the focus mirror carrier 15 is displaced along the spiral bevel 1121 of the focus drive portion 112 to axially displace the focus mirror carrier 15, thereby generating the focus mirror group 153 and the zoom lens group. Move relative to zoom. In short, when the projection 121 of the zoom drive member 12 is in contact with one side of the zoom contact portion 142 of the zoom lens holder 14 to be displaced to the other side of the touch zoom contact portion 142, the lens zoom structure 1 can be in focus. The action. It should be noted that the zoom lens carrier 14 and the focusing mirror carrier 15 can pass through the first through hole 141 and the second through hole 151 through the plurality of guiding rods 13, respectively, so that the zoom lens carrier 14 and the focusing mirror are carried. When the frame 15 is axially displaced, it is further guided by a plurality of guide rods 13, and the axial displacement can be performed more smoothly to complete the zoom or Focus and other actions.

Please refer to FIG. 3 and FIG. 4 together. FIG. 3 is a first schematic view of the first embodiment of the lens zoom structure of the present invention; FIG. 4 is a first embodiment of the lens zoom structure of the present invention. The second schematic. In the present embodiment, the related connection or actuation relationship of the lens zoom structure 1 is similar to the above, and will not be described here for the sake of brevity. As shown in the figure, the lens zoom structure 1 of the present invention can be applied to an image capturing device having a periscope camera lens, wherein the image capturing device 3 includes: a lens zooming structure 1, a mirror 16, and a driving unit. 17. Image sensing component 30, control button 31 and processing unit 32. The image sensing component 30 is disposed inside the casing 10, and may be a Complementary Metal-Oxide-Semiconductor (CMOS) or a Charge-Coupled-Device (CCD), analog/digital. Circuits, image processors, etc. When the optical signal of the object enters by the mirror 16, the optical signal is converted to be received by the first zoom lens group 102 via the reflection of the mirror 16, and then passed through the second zoom lens group 144 and the focus mirror group 153. The displacement changes so that the optical signal is properly imaged to the image sensing element 30. The image sensing component 30 converts the optical signal into a digital signal and displays or stores a storage unit (not shown) in a display unit (not shown). The processing unit 32 is electrically connected to the driving unit 17 , the image sensing element 30 and the control button 31 .

When the user presses a control button 31 (such as a shutter button) of the image capturing device 3, the processing unit 32 of the image capturing device 3 receives the command signal, and controls the driving unit 17 according to the command signal to make the driving unit 17 The drive screw 11 is driven to rotate in the forward direction. When the driving screw 11 performs the forward rotation, the zoom driving member 12 first rotates with the driving screw 11 until the protruding portion 121 touches one side of the zoom contact portion 142, and the axis is started. Displacement. When the zoom driving member 12 is axially displaced, the zoom lens carrier 14 is axially displaced, and the first zoom lens group 102 and the second zoom lens group 144 can be adjusted to an appropriate distance to adjust one. Optical signal of the appropriate range of viewing angles. When the optical signal adjustment of the appropriate viewing angle range is completed, the driving unit 17 drives the driving screw 11 to rotate in the reverse direction according to the control command. At this time, the zoom driving member 12 is reversely rotated along with the driving auger 11 at the protruding portion 121. The zoom driving member 12 does not generate an axial displacement during the process of touching one side of the zoom contact portion 142 to the other side; that is, there is no distance between the first zoom lens group 102 and the second zoom lens group 144. The change. The focus contact portion 152 of the focus lens holder 15 bears against the focus drive portion 112. When the driving screw 11 rotates in the reverse direction, the focus driving unit 112 synchronously rotates in the reverse direction, and the focus of the focus contact portion 152 is pulled by the spiral inclined surface 1121, thereby driving the focus lens carrier 15 to perform axial displacement, and the focusing mirror group 153 is The zoom lens group produces a relative displacement to adjust the optical signal of the appropriate range of viewing angles to an optical signal of a clear appropriate range of viewing angles and imaged on one of the image sensing surfaces of the image sensing element 30.

The first elastic member 18 can be sleeved on the rod 13 of the side wall 1011 of the accommodating space 101 and the zoom lens carrier 14 , and the length of the first elastic member 18 can be made larger than the length. The maximum distance between the side wall 1011 and the zoom lens carrier 14 is such that the zoom bearing portion 143 of the zoom lens carrier 14 abuts against one side of the zoom drive member 12 by the elastic restoring force of the first elastic member 18, so that the zoom lens The carrier 14 is more reliably pushed by the zoom drive member 12. In the above, the maximum distance between the side wall 1011 and the zoom lens carrier 14 may be that the zoom mirror carrier 14 is located closest to the image sensing element 30, and the distance from the side wall 1011 is the largest. Similarly, a second elastic member 19 can be disposed on the rod 13 of the guiding rod 13 between the side wall 1011 of the accommodating space 101 and the focusing mirror carrier 15 to The elastic restoring force of the second elastic member 19 causes the focus contact portion 152 to be more reliably displaced along the spiral slope 1121 of the focus driving portion 112. The maximum distance between the side wall 1011 and the focusing mirror carrier 15 may be that the focusing mirror carrier 15 is located closest to the image sensing element 30, and the distance from the side wall 1011 is the largest.

Please refer to FIG. 5 and FIG. 6 together. FIG. 5 is a first schematic view of a second embodiment of the lens zoom structure of the present invention; FIG. 6 is a second embodiment of the lens zoom structure of the present invention. The second schematic. In the present embodiment, the related connection or actuation relationship of the lens zoom structure 1 is similar to the above, and will not be described here for the sake of brevity. As shown in the figure, the lens zoom structure 1 of the present invention comprises: a housing 10, a driving screw 11, a carrier driving member 20, a plurality of guiding rods 13, a zoom mirror carrier 14, and a focusing mirror carrier. 15. At least a third elastic member 21, a mirror 16, and a driving unit 17. The driving screw 11 is a rod body having a threaded structure, and one end thereof is connected to one side wall 1011 of the accommodating space 101. The driving screw 11 has a driving portion 111 fixed to the end adjacent to the driving screw 11, and a rod movable pin adjacent to the driving screw 11 is provided with a carrier driving member 20. The carrier driving member 20 has a spiral inclined surface 201 and a flat surface 202, and a stop portion 2011, 2012 is respectively disposed at both ends of the spiral inclined surface 201. The zoom bearing portion 143 of the zoom mirror carrier 14 bears against the plane 202. The focusing mirror carrier 15 extends to the carrier driving member 20 to provide a focusing contact portion 152, and the focusing contact portion 152 bears against the spiral bevel 201. The third elastic member 21 is disposed between the zoom lens carrier 14 and the focusing mirror carrier 15 , and the two ends thereof are respectively fixed to the zoom mirror carrier 14 and the focusing mirror carrier 15 .

When the driving unit 17 drives the driving screw 11 to rotate in the forward direction, if one of the stopping portions 2011, 2012 does not touch the focusing contact portion 152, the carrier driving member 20 first rotates without axial displacement until it is therein. A stop part 2011, 2012 touches the focus connection Contact 152. When one of the stoppers 2011, 2012 touches the focus contact portion 152, the carrier driver 20 does not axially displace with the rotation of the drive screw 11. When the carrier driving member 20 is axially displaced, the plane 202 is pushed against the zoom bearing portion 143, and the zoom lens carrier 14 is axially displaced, and the elastic force is restored by the third elastic member 21 to focus. The mirror carrier 15 is axially displaced together. The axial displacement of the zoom mirror carrier 14 also causes the second zoom lens group 144 to be displaced relative to the first zoom lens group 102, and the appropriate spacing between the two can be adjusted to complete the zooming action.

When the focusing operation is completed, the driving unit 17 drives the driving screw 11 to rotate in the reverse direction. At this time, the focusing contact portion 152 is separated from one of the stoppers 2011, 2012, and is rotationally displaced without the shaft. The focus contact portion 152 is pulled by the spiral bevel 201 and displaced along the spiral bevel 201, causing the focus lens carrier 15 to generate an axial displacement, thereby driving the focus mirror group 153 and the zoom lens group to be relatively displaced. Adjust the focus lens group 153 and the zoom lens group to an appropriate distance to complete the focusing action. It should be noted that the length of the non-elasticity of the third elastic member 21 is smaller than the minimum distance between the zoom lens carrier 14 and the focusing mirror carrier 15, so that the zoom lens carrier 14 can be pulled together when axially displaced. The focus mirror carrier 15 is axially displaced; and it allows the focus contact portion 152 to more reliably bear against the spiral bevel 201 and is displaced along the spiral bevel 201.

In summary, the lens zoom structure and the image capturing device of the present invention can be designed by the combination of the zoom screw portion of the driving screw, the zoom driving member and the focusing driving portion, so that the lens zooming structure and the image capturing device thereof Only a single drive unit can be used to drive the zoom or focus action, which reduces the space required for the product and reduces the number of parts used, resulting in miniaturization, thinning and reduced material costs.

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‧‧‧Lens zoom structure

10‧‧‧shell

101‧‧‧ accommodating space

1011‧‧‧One side wall of the accommodation space

102‧‧‧First zoom lens group

11‧‧‧ drive screw

111‧‧‧ Drive Department

112‧‧‧Focus Drive Department

1121‧‧‧Spiral bevel of the focus drive

113‧‧‧Zoom thread

12‧‧‧Zoom drive

121‧‧‧Protruding

13‧‧‧Guide bars

14‧‧‧Zoom Mirror Carrier

141‧‧‧ first through hole

142‧‧‧Zoom contact

143‧‧‧Zoom bearing

144‧‧‧Second zoom lens group

15‧‧‧ Focusing mirror carrier

151‧‧‧Second through hole

152‧‧‧Focus contact

153‧‧ ‧ Focusing mirror group

16‧‧‧Mirror

17‧‧‧Drive unit

Claims (20)

A lens zooming structure comprising: a housing having an accommodating space; a driving screw having one end connected to a side wall of the accommodating space, the driving screw having a driving portion fixed adjacent to the driving screw a zoom drive portion is disposed between the drive portion and the focus drive portion, and the zoom screw portion is provided with a zoom drive member, and the zoom is provided at the end of the drive screw. The driving member has a protruding portion; the plurality of guiding rods are a cylindrical structure; a zoom mirror carrier is located on one side of the driving screw, and has at least one first through hole, a zoom contact portion and a a zooming receiving portion, the plurality of guiding rods are disposed on the at least one first through hole, the zooming contact portion is disposed corresponding to the protruding portion, the zoom bearing portion is supported by the zoom driving member; and a focusing mirror The carrier is located on the side of the driving screw, and has at least one second through hole and a focusing contact portion. The plurality of guiding rods are disposed in the at least one second through hole, and the focusing mirror carrier is facing the focusing Drive section The focus contact portion is disposed, and the focus contact portion bears against the focus drive portion. When the drive screw rotates, the focus mirror carrier and the zoom mirror carrier are respectively axially displaced along the drive screw to Zoom or focus. The lens zooming structure of claim 1, wherein when the protruding portion is not touched by the zooming contact portion, the zoom driving member rotates with the driving screw, and the zoom driving member does not perform axial displacement. . The lens zoom structure of claim 1, wherein when the protruding portion touches the zoom contact portion, the zoom driving member does not rotate with the driving screw, and the zoom driving member performs axial displacement. The zoom drive member is pushed against the zoom bearing portion to interlock the zoom lens carrier for axial displacement. The lens zoom structure of claim 1, wherein the focus drive portion comprises a spiral bevel, and the focus lens carrier generates an axial displacement when the focus contact portion is displaced along the spiral bevel. The lens zoom structure of claim 1, further comprising at least one first elastic member and at least one second elastic member, wherein the at least one first elastic member and the at least one second elastic member are sleeved on the lens a plurality of guiding rods, wherein the at least one first elastic member is located between the side wall and the zoom lens carrier, and the at least one second elastic member is located between the side wall and the focusing mirror carrier. The lens zooming structure of claim 5, wherein the length of the at least one first elastic member is not greater than the maximum distance between the side wall and the zoom mirror carrier, and the at least one second elastic member is not telescopic. The length is greater than the maximum distance between the side wall and the focusing mirror carrier. The lens zooming structure of claim 1, wherein when the driving screw rotates, the plurality of guiding rods respectively pass through the at least one first through hole and the at least one second through hole, thereby causing the The focusing mirror carrier and the zoom mirror carrier are guided by the plurality of guiding rods for axial displacement. An image capturing device comprising: a housing having an accommodating space; and a first zoom lens group disposed on a side wall; a driving screw having one end connected to the side wall of the accommodating space, The driving screw has a driving portion fixed to the end adjacent to the driving screw, and adjacent to the driving screw The other end of the rod is fixed with a focus driving portion. The driving portion and the focusing driving portion have a zooming screw portion. The zoom threaded movable latch is provided with a zoom driving member, and has a protruding portion; a plurality of guiding rods , is a cylindrical structure; a zoom mirror carrier is located on one side of the driving screw, and has at least a first through hole, a zoom contact portion, a zoom bearing portion and a second zoom lens group, The plurality of guiding rods are disposed on the at least one first through hole, the zoom contact portion is disposed corresponding to the protruding portion, and the zoom bearing portion is supported by the zoom driving member, and the second zoom lens group corresponds to a first zoom lens group is disposed; a focusing mirror carrier is located on the side of the driving screw, and has at least one second through hole, a focusing contact portion and a focusing mirror group, wherein the plurality of guiding rods are disposed on the At least one second through hole, the focus lens holder extends the focus contact portion to the focus drive portion, and the focus contact portion bears against the focus drive portion, the focus mirror group corresponds to the first zoom lens group Setting; and a drive unit, the position The end of the driving screw is engaged with the driving portion, and when the driving unit drives the driving screw to rotate, the focusing mirror carrier and the zoom mirror carrier are respectively axially displaced along the driving screw for zooming Or focus. The image capturing device of claim 8, wherein when the protruding portion and the zooming contact portion are not touched, the zoom driving member rotates along with the driving screw, and the zoom driving member does not perform axial direction. Displacement. The image capturing device of claim 8, wherein when the protruding portion touches the zoom contact portion, the zoom driving member does not rotate with the driving screw, and the zoom driving member performs axial displacement The zoom driving member is pushed against the zoom bearing portion to interlock the zoom lens carrier to perform axial displacement, so that the first zoom lens group and the second zoom lens group are relatively displaced to perform a zooming operation. The image capturing device of claim 8, wherein the focusing driving portion comprises a spiral bevel, and when the focusing contact portion is displaced along the spiral bevel, the focusing mirror carrier generates axial displacement, and further The focusing mirror group and the first zoom lens group and the second zoom lens group are relatively displaced to perform a focusing operation. The image capturing device of claim 8, further comprising at least one first elastic member and at least one second elastic member, wherein the at least one first elastic member and the at least one second elastic member are sleeved on The plurality of guiding rods are disposed between the side wall and the zoom lens carrier, and the at least one second elastic member is located between the side wall and the focusing mirror carrier. The image capturing device of claim 12, wherein the length of the at least one first elastic member is not greater than the maximum distance between the side wall and the zoom lens carrier, and the at least one second elastic member is not stretched. The length is greater than the maximum distance between the side wall and the focusing mirror carrier. The image capturing device of claim 8, wherein when the driving screw rotates, the plurality of guiding rods respectively pass through the at least one first through hole and the at least one second through hole, thereby causing The focusing mirror carrier and the zoom mirror carrier are guided by the plurality of guiding rods for axial displacement. A lens zooming structure comprising: a housing having an accommodating space; a driving screw being a rod body having a threaded structure, one end of which is connected to a side wall of the accommodating space, and the driving screw has A driving portion is fixed adjacent to the end of the driving screw, and the rod movable pin of the driving screw is provided with a carrier driving member, the carrier driving member has a spiral inclined surface and a plane, and both ends of the spiral inclined surface Each has a stop portion; a plurality of guide rods are a cylindrical structure; a zoom lens carrier is disposed on one side of the driving screw, and has at least one first through hole and a zoom bearing portion. The plurality of guiding rods are disposed through the at least one first through hole, and the zoom bearing And a focusing mirror carrier is disposed on the side of the driving screw, and has at least one second through hole and a focusing contact portion, wherein the plurality of guiding rods are disposed on the at least one second a through hole, the focusing mirror carrying the focus contact portion extending to the carrier driving member, and the focusing contact portion bears against the spiral inclined surface, the focusing mirror carrier and the zoom lens when the driving screw rotates The carrier is axially displaced along the drive screw for zooming or focusing. The lens zoom structure of claim 15, wherein when the stop portion does not touch the focus contact portion, the carrier drive member rotates with the drive screw, and the carrier drive member does not perform axial direction. Displacement. The lens zoom structure of claim 15, wherein when the stop portion touches the focus contact portion, the carrier drive member does not rotate with the drive screw, and the carrier drive member axially displaces The carrier driving member is pushed against the zoom bearing portion to interlock the zoom lens carrier for axial displacement. The lens zooming structure of claim 15, wherein the focusing mirror carrier generates an axial displacement when the focusing contact portion is displaced along the spiral bevel. The lens zooming structure of claim 15 further comprising at least one third elastic member, one end of the at least one third elastic member being fixed to the zoom mirror carrier, the at least one third elastic member The other end is fixed to the focusing mirror carrier, and the length of the at least one third elastic member that is not telescopic is smaller than the minimum distance between the zoom lens carrier and the focusing mirror carrier. The lens zooming structure of claim 15, wherein when the driving screw rotates, the plurality of guiding holes respectively pass through the at least one first through hole and the at least a second through hole causes the focus mirror carrier and the zoom mirror carrier to be guided by the plurality of guide rods for axial displacement.