TWM265618U - Zoom lens barrel - Google Patents

Description

In particular, it relates to a thinner M265618. 4. Creation instructions (1) [Technical field to which the new type belongs] This creation relates to a zoom lens, a zoom lens for an electronic device. [Previous Technology] It is expected that thinner electronic devices such as cameras, simple digital cameras, and mobile phones with image capabilities are becoming more and more widely used. The thinner electronic device of this imaging module is limited by its thickness, so the structure of the zoom lens to be carried is as simple as possible, and the volume is as close as possible to the development trend of the low architecture of such devices. ^ Mouth ~ Baq Le D, 3 w 9 5 No. 6 display work-type: thread head 'This zoom lens is equipped with a linear motion barrel and a $ to move the lens frame back and forth along the optical axis, because it requires several large The assembly is complicated and the iir has a complicated structure, a large volume, a complicated structure, and a relatively high cost. It is not suitable for being applied to a thin electronic device with built-in red. Xifen M " ^ 口 〇r ^ is equipped with an imaging mode No. 6,741,400 discloses another U.S. patent published on the rotation of the lens frame to set the seed / focus lens' the zoom lens is convexly arranged on the wall Move in the radial direction; but because the cam ㈣ is more complicated, the volume is also comparable; compared with 1, :::::: 'Therefore, it is difficult to apply the good focus lens with its imaging module. So how ίί inside the device. Problems to be solved urgently. A zoom mechanism that solves the above problems has become [new content] The purpose of this creation ', i. The shortcomings of the previous technology mentioned above provide a M265618 4. Creation instructions (2) The decoration is simple, small, and low cost Zoom lens. 11 11μ, ## For the purpose, this creation provides a zoom lens, which includes the Mth. Two 1m ~ ^ lens frame, spring, second lens frame, and second fixing, i, the tube splits the tube to define a central axis, and the tube wall surrounds a hollow through hole; the side edge of the shaft extends the guide Guide the positioning groove, guide point and card position. The orientation of the directions of Γ is staggered on the center axis. The center of this channel is located in the guide channel. The first lens frame has a driving rod that passes through the groove and is at a positioning point. The second lens is provided with a positioning portion on the first guide extending from the first lens to the lens frame and passing along the central axis. The K-fixed guide groove is used for the driving rod of the first lens frame to be fitted with a stopper Qiu Qi sleeve and outside the first lens frame. The second fixed cylinder is inserted into the second guide groove extending along the central axis. The second guide fixes the second lens frame, and the fixed stop portion of the second lens frame cooperates to determine the farthest point of the second lens frame. The first and the second are driven by the driving rod and compress the spring. The zoom lens created by the brother is by moving the driving lever along the first to move the-lens frame back and forth along the central axis. Because of this, the group of the zoom lens; K is lower than the closing cost, and it has a simple structure, small size and easy configuration. [Embodiment]

Page 6 M265618 IV. Creative Instructions (3) In order to explain the technical content, achieved goals and effects of this creative in detail, the following examples are given in conjunction with the drawings to explain in detail. Referring to the first and second figures, the zoom lens 100 includes a first fixed barrel 110, a first lens frame 120, a spring 130, a second lens frame 140, and a second fixed barrel 150. Among them, the first fixed cylinder 110 defines a central axis 0, and the centers of the first lens frame 120, the second lens frame 140, and the second fixed cylinder 150 are located on the central axis 0. Please refer to the third figure and the fourth figure together. The first fixed cylinder 11 has a linear guide cylinder 111 ′, and a lens (not shown in the figure) is fixed therein. A hollow passage is used to receive the first lens frame 1 2 0. The cylinder wall is provided with a guiding and positioning groove 112 extending along the central axis 0 and two first sliding grooves 11 3 ′ to guide the first lens frame 12 2 to move forward and backward along the central axis 0; the guiding and positioning groove 1 1 2 The edges of both sides are wavy, so that their widths are staggered along the direction of the central axis 0. An anchor point 114 is formed at a wider width, and a latch point 115 is formed at a narrower width. In this embodiment, there are three An anchor point 11 4 is defined as a first anchor point, a second anchor point, and a third anchor point, respectively. The rear end of the linear guide cylinder 11 is formed with a first fixing base 116 extending in the radial direction and away from the central axis 0 to fix the zoom lens 100 to a corresponding electronic device. The linear guide cylinder 111 is provided with a groove 11 7 around the circumference to accommodate the spring 130 and shorten the length of the zoom lens 100 in the contracted state. A lens 121 is fixed on the first lens frame 120. A driving rod 122 is extended outward from the first lens frame 120. The driving rod 122 passes through the guide positioning groove 112 and can be overcome by the external fixing force by the external force. Resistance at card position 11 5

M265618 4. Creation instructions (4) The positioning groove 11 2 slides to be at different positioning points 丨 4 so that the first lens frame 120 is at different zoom positions. In order to improve the stability of the first lens frame 丨 20 sliding between different zoom positions, the first lens frame 丨 20 is also fixed with two sliders 123 'which can be respectively along the first fixed cylinder 丨 1 () The first chute 113 slides. The spring 1 30 is a compression spring, one end of which is placed in the groove 117 of the first fixing cylinder η and the other end thereof presses against the second lens frame 14o. The spring 13o is in a compressed state or an elastically restored state, so that the second lens frame 14o is in one of two corresponding positions (described in detail later). The second lens frame 140 has a cylindrical shape, and is sleeved on the outside of the linear guide cylinder 11 of the first fixed cylinder η. A lens 141 is fixed at the front end, and the rear end has a convexity extending along the control direction and away from the central axis 〇. The arm 丨 4 4 has a positioning portion 145 extending forward from the convex arm 144 so as to abut with the spring 丨 3 〇, so that when the spring 13 〇 is in the elastic recovery state, it presses against the second fixed cylinder 丨 5 〇 to make the zoom lens丨 〇〇 is in a zoom state, in this embodiment, the positioning portion 45 is a convex rib extending along the central axis 〇. A first guide groove 142 and two second sliding grooves (not shown in the figure) are further provided on the second lens frame 丨 4. The driving rod 122 and the sliding member 123 can pass through the first lens guide groove 142 and the spring 130. When returning to the state, a moving space of the driving lever 122 and the slider 123 is provided. 2-The solid cylinder 150 is set on the outside of the second lens frame 140, and the cylinder wall is provided with a second guide groove 1 & 52 through which the driving rod 122 of the first lens frame 20 passes. The ^ end of the cylinder wall has a stop 4 1 54 extending in the radial direction toward the central axis 0. When the spring 丨 30 is in the elastic recovery state, it is used to press the positioning portion 1 4 5 and limit the second lens frame. Position 1 40; the rear end of the cylinder wall is provided with a radial extension

M265618 4. Creation instructions (5) The second fixing base 156 extending away from the central axis 〇 can be fixed on the first fixing base 116 by screws 1 57. In addition, in order to make the second lens frame 140 compress the spring 130 by pushing the driving rod 122, the zoom lens 100 of this creation also includes a retaining ring 160, which is sleeved on the second lens frame 140 and abuts its convex arm. 144. Therefore, when the driving lever 122 is pushed to bring the zoom lens 100 into a contracted state, the driving lever 12 pushes the retaining ring 160 to the first fixing cylinder 11 and the retaining ring 160 drives the second lens frame. 140 compresses the spring 1 30, so that the spring 130 is in a compressed state. The function of the retaining ring 160 can also be achieved by designing the shape of the first guide groove of the second lens frame 4o, as shown in the fifth figure, which is another modified design of the second lens frame 1 4 0. The second The first guide groove 142 of the lens frame 140 is composed of two slide grooves extending along the central axis and communicating with each other. One slide groove is opened at an end of the second lens frame 140, and the other slide groove is away from the end. There is a certain distance, and the ends of the two chute are connected. Therefore, the structure of the first guide groove 142 can also drive the second lens frame 14 to drive the second lens frame 140 compression spring 1 3 0, so the retaining ring 1 60 can be omitted. . The first fixed tube of the zoom lens 100 created in this work is usually injection molded from a plastic material, and the first sliding groove 113 and the sliding member 123 of the first lens frame 120 have a large friction resistance, which is not convenient for the sliding member 123. Therefore, the zoom lens 100 of this creation further includes a metal tube 170, which is set on the outer periphery of the linear guide tube iii of the: = tube 110. The metal cylinder i 70 is provided with a wider slot 172 and a narrower third sliding slot 173. The slot 172 is used for the driving rod 122 to pass through the three sliding slots 1 to 3 to guide the sliding member 123 along it. Μ, at this time, the slider 23 is no longer the first slide of the first fixed cylinder u〇

Page 9 M265618 4. Creation instructions (6) The grooves 11 and 3 are in contact, thus facilitating the sliding of the sliders 1 to 23. In addition, in order to fix the metal cylinder 170 to the first fixed cylinder 110, one end of the metal cylinder 170 is also provided with a fixing groove I74. Accordingly, the linear guide cylinder 丨 i of the first fixed cylinder 丨 10 is adjacent to the first A fixing block 11 8 (as shown in the fourth figure) is provided at the fixing base 116 to fix the metal cylinder 170 on the first fixing cylinder 110 by engaging with the fixing groove 174. The following describes the zoom operation process of the zoom lens ′ 100 according to this embodiment with reference to FIGS. 7 to 12.

The seventh and eighth figures show the contraction state of the zoom lens i 〇〇 in this creation. At this time, the driving lever 122 of the first lens frame 120 is at the first positioning point, and the spring 130 is in the compressed state. The length of the zoom lens 丨 〇〇 is the shortest. Push the driving rod 1 2 2 along the guide positioning groove 11 2 so that it is at the second positioning point. The zoom lens 100 of this creation is in the zoom state. At this time, the elastic restoring force of the spring 13 10 pushes the second lens frame 1 4 〇 Move forward and position the positioning portion 145 against the stop portion 154 of the second fixed cylinder 150, as shown in the ninth and tenth drawings, if the driving rod 1 2 2 is pushed to move it from the second positioning point (such as Figures 9 and 10) Move to the third positioning point (as shown in Figures 11 and 12) to change the focal length of the zoom lens 100. At this time, due to the stop of the second fixed barrel 150 The portion 154 has resisted the positioning portion 145 of the second lens frame 140. 3 The second lens frame 140 no longer moves with it, and the total length of the zoom lens 100 does not increase. That is, the positioning portion of the second lens frame and the first lens frame 140 The stop portions of the two fixed cylinders are assigned to determine the farthest point of the second lens frame. During the change of the zoom lens from a changeable state to a retracted state, the driving rod 122 abuts on the holding ring 160 from the second positioning point and pushes it toward the first fixing tube 11 and holding the ring.丨 6〇 Drive the first

M265618 IV. Creation instructions (7) The two lens frames 140 compress the spring 130, and when the driving rod 12 is at the first positioning point, the spring 130 is compressed and the zoom lens 100 is contracted. From the above, the zoom lens 100 of this creation is pushed by the driving rod 1 2 2 along the guide slot 112 of the first fixed cylinder 110 to move the first lens frame 1 2 0 back and forth along the central axis 0. The zoom function of the zoom lens 100 is achieved, so that the design of the rotating tube in the conventional technique can be omitted and the lens frame does not need to be rotated about the central axis 0 'and the second lens frame 14 is moved by the spring 130 to make the zoom lens The 100 is in a contracted state or a zoomed state. Therefore, the zoom dream head 100 has fewer components and simple zoom operation, so its structure is simple, small in size, easy to assemble, and low in cost. Therefore, the zoom dream of this creation is as early as 100. It is suitable for applications such as children's work with photos or video functions. The mobile phone of month b, etc. As mentioned above, the zoom lens of this creation is disclosed by the above. Structure, to the effect described, and the application of this creation is in line with the patent application. However, 'the above disclosure is only for this creation: According to the law, it is not possible to limit the scope of this creation's rights. As for implementation Other equivalent modifications or changes should be covered by the following works.

Page M265618

Brief description of the drawings [Simplified illustration of the drawings The first picture is an exploded perspective view of the creative zoom lens. The third figure is a three-dimensional combined view of the zoom lens shown in the first figure. The second picture is a partial enlarged view of the melon part of the first picture. The fourth image is a three-dimensional view of the first fixed barrel of the zoom lens shown in the first image. The fifth image is a three-dimensional view of the last name of the second lens frame of the original zoom lens. The sixth image is shown in the first image. A perspective view of the metal barrel of a zoom lens. The seventh diagram is a side view when the driving lever of the second lens frame of the zoom lens shown in the first diagram is at the first positioning point. The eighth figure is a cross-sectional view taken along the line M-M of the seventh figure. The ninth figure is a side view when the driving lever of the second lens frame of the zoom lens shown in the first figure is at the second positioning point. The tenth figure is a sectional view taken along the line X-X of the ninth figure. The eleventh figure is a side view when the driving lever of the second lens frame of the zoom lens shown in the first figure is at the third positioning point. The twelfth figure is the sectional view of X Π-X Π of the eleventh figure

Zoom lens 100 First fixed cylinder 1 10 Linear guide cylinder 111 Guide positioning groove 112 First chute 113 Positioning point 1 14 Locking point 115 First fixing seat 116 Groove 117 Fixing block 118 Page 12 M265618 Simple drawing Description

First lens frame 120 Lens 1 21, 141 Drive rod 122 Slider 123 Spring 130 Second lens 140 First guide groove 142, 142, convex arm 144 Positioning portion 145 Second fixing cylinder 15 0 Second guide groove 152 Stop Stopper 154 Second fixing seat 156 Screw 157 Retaining ring 160 Metal tube 170 Slot 172 Second sliding slot 1 73 Fixing slot 174

Page 13

Claims (1)

M265618 5. Scope of patent application 1. A zoom lens, comprising: a first fixed cylinder defining a central axis, a cylinder wall of the third fixed cylinder surrounding a hollow passage, and a cylindrical wall extending along the central axis A guiding positioning groove is formed on the side edge of the guiding positioning groove with a plurality of positioning points and locking points. The positioning points and the locking points are staggered along the direction of the central axis; a first lens frame is placed in the channel, and The center is located on the central axis, the first lens frame has a driving rod, the driving rod passes through the guide groove and is located at a positioning point; the second lens frame is sleeved on the outside of the first fixed cylinder, The second penetrating iron frame is provided with a positioning portion and a first guide groove extending along the central axis, and the first guide groove is used for the driving rod of the first lens frame to pass through; the spring has one end thereof abutting against the first fixed cylinder, The other end is against the second lens frame; and a second fixing cylinder is sleeved on the outside of the second lens frame. The second fixing cylinder is provided with a broadcasting stopper and a second guide groove extending along the central axis. ; Guide slot for the drive lever of the first lens frame Pass; where the positioning part of the second lens frame and the broadcast part of the second fixed barrel age the second lens frame to determine the farthest point, and the return of the second lens frame is driven by the drive rod and compresses the spring. 2 · The zoom lens according to item 1 of the scope of patent application, wherein the rear end of the first fixed cylinder has a first fixing base extending in the radial direction and away from the central axis, and the first fixing base is provided with a groove, so Said one end of the bouncing cymbal fixed cylinder is placed in the groove. / Top 3 · The zoom lens according to item 2 of the patent application scope, wherein the > -------- --- ---------- ^^-Page 14 M265618 The rear end of the fixing cylinder has a second fixing base extending in the radial direction and away from the central axis, and the second fixing base is fixed on the first fixing base. 4. The zoom lens according to item 1 of the scope of patent application, wherein the first guide groove of the second lens frame is composed of two slide patterns extending along the central axis and communicating with each other, and one slide groove is opened in the second lens. At the end of the frame, the other chute is at a distance from the end of the frame, and the ends of the two chute are connected. 5. The zoom lens according to item 1 of the scope of patent application, wherein the positioning portion of the second lens frame is a convex rib extending along the central axis. 6 · The zoom lens according to item 1 of the scope of patent application, wherein at least one slider is fixed on the _ lens frame, and the first fixed cylinder and the second lens frame are respectively provided for the The first chute and the second chute through which the sliding member passes. 7. The zoom lens according to item 6 of the scope of the patent application, further comprising a metal tube 'sleeved and fixed on the first fixed tube, and a third slide slot for the slide member to pass therethrough, and A slot through which the driving rod of the first lens frame passes. 8. The zoom lens according to item 1 of the patent application, wherein the one end of the second lens frame and the spring is provided with a convex arm extending radially away from the central axis. The zoom lens further includes a retaining ring and a sleeve. It is set on the second lens weight and placed between the convex arm and the driving rod.