CN2731482Y - Zoom mechanism of lens module - Google Patents
Zoom mechanism of lens module Download PDFInfo
- Publication number
- CN2731482Y CN2731482Y CN 200420092902 CN200420092902U CN2731482Y CN 2731482 Y CN2731482 Y CN 2731482Y CN 200420092902 CN200420092902 CN 200420092902 CN 200420092902 U CN200420092902 U CN 200420092902U CN 2731482 Y CN2731482 Y CN 2731482Y
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- lens frame
- rotating cylinder
- lens
- flange
- zoom mechanism
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Abstract
The utility model discloses a zoom mechanism of a lens module, comprising a first lens frame, a second lens frame, a spring, a guiding device, a rotating cylinder and a stationary cylinder. The first and the second lens frames are contained in the rotating cylinder, and are provided respectively with a sliding column. The rotating cylinder is provided with a convex handle, a first flange and a second flange, and each flange is provided with an initial positioning flange, a terminal positioning flange and a guiding flange which is connected with the two positioning flanges. Both ends of the spring are respectively cooperated with the first and the second lens frames so that the sliding columns of the first and the second lens frames are respectively leaned against the first and the second flanges of the rotating cylinder. The guiding device guides the first and the second lens frames to linearly move along a light axis. The stationary cylinder is arranged at the outside of the rotating cylinder, and is provided with a guiding groove for the convex handle of the rotating cylinder to pass. The convex handle is turned along the guiding groove to rotate the rotating cylinder, and thereby the first and the second lens frames are driven to move along the light axis for zooming. Because the number of the components of the zoom mechanism of the lens module is less, the utility model has simple structure, small volume, easy assemblage and low cost.
Description
Technical field
The utility model relates to a kind of zoom mechanism, relates in particular to a kind of zoom mechanism that is applied to the camera lens module of thin electronic installation.
Background technology
In recent years, camera, simple and easy digital camera, have take pictures or the application of thin electronic installation such as the mobile phone of recording function more and more widely.The thin electronic installation of these built-in imaging modules requires the structure of its zoom mechanism of carrying simple as far as possible because of the restriction of himself thickness, and volume is as far as possible little, to adapt to the development trend of the low framework of this class device.
The United States Patent (USP) the 6th that on April 9th, 2002 was announced, 369, disclosed a kind of zoom mechanism of two groups of formula zoom lens No. 956, comprising a plurality of rotating cylinders and a plurality of rectilinear motion tube, the two groups of lens units connect with different rectilinear motion tube respectively, and rotating cylinder drives the rectilinear motion tube and moves to change the relative position of lens unit along optical axis direction.The zoom mechanism complex structure of this zoom lens, volume are big, assembling is loaded down with trivial details and cost is higher, are unsuitable for being applied in the thin electronic installation that is built-in with imaging modules.
The United States Patent (USP) of announcing on May 25th, 2004 has disclosed the zoom mechanism of another kind of two groups of formula zoom lens for the 6th, 741, No. 400, and it has two lens frame, connects the spring and a cam canister of two lens frame.The lens frame elongated slot that is provided with driving stem and extends wherein along optical axis direction, another lens frame is provided with the projection that cooperates with elongated slot, and cam canister is provided with and the corresponding positioning tooth of driving stem.During zoom, the cooperation position of regulating driving stem and positioning tooth is provided with the lens frame of this driving stem with rotation, this lens frame drives another lens frame with spring and together rotates on optical axis, also be respectively equipped with cam on this two lens frame and follow part, cooperate with the respective cams track in the cam canister, so, move along optical axis when this two lens frame is rotated, to change the distance between two lens units.But since this zoom mechanism by being provided with elongated slot and driving stem lens frame and the relative motion between the cam canister that is provided with positioning tooth move two lens units, thereby its zoom process is still complicated, volume is also relatively large, so the zoom mechanism of this zoom lens still is difficult to be applied in the thin electronic installation that is built-in with imaging modules.
Therefore, how to provide a kind of zoom mechanism that can overcome the zoom lens of the problems referred to above to become the problem that needs to be resolved hurrily.
Summary of the invention
At the defective that above-mentioned prior art exists, the purpose of this utility model provides a kind of zoom mechanism of assembling the camera lens module easy, simple in structure, that volume is little, cost is low.
For achieving the above object, the utility model provides the zoom mechanism of a camera lens module, and it comprises first lens frame, second lens frame, spring, guidance device, rotating cylinder and stationary magazine creel.Be fixed with a lens unit on first lens frame, an optical axis is determined at the center of this lens unit, and this first lens frame is provided with first traveller.Also be fixed with a lens unit on second lens frame, being centered close on the described optical axis of this lens unit, and this second lens frame is provided with second traveller.Rotating cylinder is accommodated first lens frame and second lens frame, and its central shaft and described light shaft coaxle, rotating cylinder is provided with protruding handle, first flange and second flange, each flange all has initial location edge, terminal positioning edge and leading edge at least, initial location edge and terminal positioning edge are to be opened on the rotating cylinder barrel along vertical optical axis, and along the circumferential direction reach the determining deviation that axially all staggers, leading edge connects initial location edge and terminal positioning edge.Both ends of the spring cooperates with first lens frame and second lens frame respectively, so that first traveller is resisted against first flange of rotating cylinder, makes second traveller be resisted against second flange of rotating cylinder.Guidance device guides described first lens frame and second lens frame to move along the optical axis straight line.Fixing barrel casing is located at the rotating cylinder outside, which is provided with along the circumferential direction to reach radially the gathering sill that extends, and passes for the protruding handle of rotating cylinder.
The beneficial effects of the utility model are, by stirring protruding handle rotating cylinder is rotated, drive first flange of rotating cylinder and second flange and spring first lens frame and second lens frame move along optical axis direction carries out zoom, reduce component count, reduce zoom control difficulty, so make the zoom mechanism of camera lens module simple in structure, volume is little, assembling is easy, with low cost.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Brief description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the three-dimensional exploded view of first embodiment of the zoom mechanism of the utility model camera lens module.
Fig. 2 is the three-dimensional combination figure of the zoom mechanism of camera lens module shown in Figure 1.
Fig. 3 is that the zoom mechanism of camera lens module shown in Figure 2 removes behind the stationary magazine creel and first lens frame and second lens frame side view when being in primary importance.
Fig. 4 is the IV-IV cut-open view of Fig. 3.
Fig. 5 is that the zoom mechanism of camera lens module shown in Figure 2 removes behind the stationary magazine creel and first lens frame and second lens frame side view when being in the second place.
Fig. 6 is the VI-VI cut-open view of Fig. 5.
Fig. 7 is the three-dimensional exploded view of second embodiment of the zoom mechanism of the utility model camera lens module.
Fig. 8 is the stereographic map of stationary magazine creel of the zoom mechanism of camera lens module shown in Figure 7.
Fig. 9 is the three-dimensional combination figure of the zoom mechanism of camera lens module shown in Figure 7.
Figure 10 is that the zoom mechanism of camera lens module shown in Figure 9 removes behind the stationary magazine creel and first lens frame and second lens frame side view when being in primary importance.
Figure 11 is the XI-XI cut-open view of Figure 10.
Figure 12 is that the zoom mechanism of camera lens module shown in Figure 9 removes behind the stationary magazine creel and first lens frame and second lens frame side view when being in the second place.
Figure 13 is the XIII-XIII cut-open view of Figure 12.
Embodiment
For further setting forth the utility model is technological means and the effect that the predetermined purpose of realization is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.
See also Fig. 1 and Fig. 2, Fig. 1, Fig. 2 disclose first embodiment of the zoom mechanism 100 of the utility model camera lens module.In the present embodiment, the zoom mechanism 100 of camera lens module comprises stationary magazine creel 110, first lens frame 120, spring 130, rotating cylinder 140 and second lens frame 150.Wherein, first lens frame 120 is determined an optical axis O, and the center of stationary magazine creel 110, rotating cylinder 140 and second lens frame 150 all is positioned on this optical axis O.
The barrel of rotating cylinder 140 surrounds the passage of a hollow, to hold first lens frame 120 and second lens frame 150.The outer wall of barrel is provided with a protruding handle 141, and protruding handle 141 both can be one-body molded with rotating cylinder 140, also can be a separate part and is fixed on the rotating cylinder 140, and in the present embodiment, protruding handle 141 is a separate part.The rear and front end of barrel is excised a part respectively and is formed first flange 142 and second flange 143 with definite shape.Wherein, first flange 142 comprises the first initial location edge 145, the first terminal positioning edge 146 and first leading edge 144; The first initial location edge 145 and the first terminal positioning edge 146 are offered along vertical optical axis O and are formed, and along the circumferential direction reach optical axis direction layout with all staggering spacing, and first leading edge 144 connects the first initial location edge 145 and the first terminal positioning edge 146.Second flange 143 is similar to first flange 142, has the second initial location edge 148, the second terminal positioning edge 149 and connection second leading edge 147 therebetween.First and second initial location edge 145,148 is determined the primary importance of first lens frame 120 and second lens frame 150, as shown in Figure 3; First and second terminal positioning edge 146,149 is determined the second place of first lens frame 120 and second lens frame 150, as shown in Figure 5.First and second leading edge 144,147 guides first lens frame 120 and second lens frame 150 to shift to the another location by a position respectively.
The barrel of stationary magazine creel 110 also surrounds the passage of a hollow, to hold rotating cylinder 140.Offer one on the barrel of stationary magazine creel 110 and along the circumferential direction reach the gathering sill 111 that radially extends, pass, stir protruding handle 141 rotatable rotating cylinders 140 along gathering sill 111 for the protruding handle 141 on the rotating cylinder 140.One end of stationary magazine creel 110 protrudes out shoulder 112 to the center, and it can be used as a lens frame, in order to fixed lens 113, and does not need to be provided with separately the lens frame of fixed lens 113 again, thereby has simplified the one-piece construction of zoom mechanism.
Be fixed with lens 121,151 respectively on first lens frame 120 and second lens frame 150, and protruded out first traveller 122 on first lens frame 120, first traveller 122 slides along first flange 142, has protruded out second traveller, 152, the second travellers 152 on second lens frame and has slided along second flange 143.For making two travellers 122,152 its corresponding flange 142,143 butts respectively, fix an extension spring 130 between first lens frame 120 and second lens frame 150.When first lens frame 120 and second lens frame 150 were in primary importance, as shown in Figures 3 and 4, spring 130 had had the elastic force of presetting, so that two travellers 122,152 compress initial location edge 145,148 respectively; Stirring protruding handle 141 rotates rotating cylinder 140, first and second leading edge 144,147 of rotating cylinder 140 makes two travellers 122,152 move and make first lens frame 120 and second lens frame 150 move to the second place along it, as Fig. 5 and shown in Figure 6, this moment, the elastic restoring force of spring 130 made two travellers 122,152 compress terminal positioning edge 146,149 respectively.Oppositely stir protruding handle 141 and make rotating cylinder 140 backward rotation, the elastic restoring force of spring 130 makes first lens frame 120 and second lens frame 150 shift to primary importance by the second place.
In addition, in rotating rotating cylinder 140 processes, move and unlikelyly rotate along optical axis O for ease of first lens frame 120 and second lens frame 150 with rotating cylinder 140, the zoom mechanism 100 of present embodiment camera lens module also is provided with guidance device, it comprises two guide rods 160 and a fixed frame 170, fixed frame 170 is fastened on 112 relative other ends at one end of stationary magazine creel 110 shoulders, corresponding with guide rod 160, offer bullport 123 respectively on first lens frame 120 and second lens frame 150,153, offer fixed orifice 114 respectively on the shoulder 112 of stationary magazine creel 110 and the fixed frame 170,171, guide rod 160 1 ends are fixed in the fixed orifice 114 of shoulder 112, and the other end then passes the bullport 123 of first lens frame 120 respectively, be fixed on behind the bullport 153 of the spring 130 and second lens frame 150 in the fixed orifice 171 of fixed frame 170.
The following describes the assembling process of the zoom mechanism 100 of present embodiment camera lens module.
At first, lens 113,121,151 are contained in respectively in stationary magazine creel 110, first lens frame 120 and second lens frame 150.Secondly, two guide rods 160 are fixed on the stationary magazine creel 110, first lens frame 120 of packing into earlier, reinstall spring 130, and spring 130 1 ends are fixed on first lens frame 120, pack into the successively then rotating cylinder 140 and second lens frame 150, and the other end of spring 130 is fixed on second lens frame 150 then are fastened on fixed frame 170 on the stationary magazine creel 110 and affixed with the other end of two guide rods 160.At last protruding handle 141 is passed the gathering sill 111 of stationary magazine creel 110 and be fixed on the rotating cylinder 140 and can finish whole assembling process.
See also Fig. 7 and Fig. 9, Fig. 7, Fig. 9 disclose another embodiment of the zoom mechanism 100 of the utility model camera lens module.The zoom mechanism of the zoom mechanism of present embodiment camera lens module and the first embodiment camera lens module is similar, difference is: a perforate 140a is offered at the middle part of rotating cylinder 140 barrels, the both sides of the edge of perforate 140a form first flange 142 and second flange 143, in addition, for guiding first lens frame 120 and second lens frame 150 to pack in the rotating cylinder 140, rotating cylinder 140 barrels also offer the guide groove 140b that is communicated with perforate 140a; Spring 130 ' is a compression spring, its two ends are respectively against first lens frame 120 and second lens frame 150, so that first lens frame 120 and second lens frame 150 be when being in primary importance, traveller 122,152 compresses initial location edge 145,148 respectively, as Figure 10 and shown in Figure 11; When first lens frame 120 and second lens frame 150 were in the second place, traveller 122,152 compressed terminal positioning edge 146,149 respectively, as Figure 12 and shown in Figure 13.
See also Fig. 9 to Figure 13, rotate rotating cylinder 140 by stir protruding handle 141 along gathering sill 111, to promote first lens frame 120 and second lens frame 150 it is shifted in the process of the second place by primary importance, the elastic restoring force of spring 130 ' promotes two lens frame 120,150 and moves along optical axis O; Oppositely stir protruding handle 141, so that first lens frame 120 and second lens frame 150 are shifted in the primary importance process by the second place, first flange 142 and second flange 143 promote two lens frame 120,150 respectively and move along optical axis O, and two lens frame, 120,150 compression springs 130 ' make its elastic deformation.For preventing that first lens frame 120 and second lens frame 150 are rotated around optical axis O with rotating cylinder 140 in rotating rotating cylinder 140 processes, the guidance device of the zoom mechanism 100 of this camera lens module is to be opened in the inboard and chute 115 parallel with optical axis O of stationary magazine creel 110 barrels, as shown in Figure 8, the traveller 122,152 of first lens frame 120 and second lens frame 150 all stretches in the chute 115 and can move forward and backward along chute 115, thereby can prevent that first lens frame 120 and second lens frame 150 are with rotating cylinder 140 rotations.
The following describes the assembling process of the zoom mechanism 100 of present embodiment camera lens module.
Step 1: lens 113,121,151 are contained in respectively in stationary magazine creel 110, first lens frame 120 and second lens frame 150; Step 2: in the rotating cylinder 140 of successively first lens frame 120, spring 130 ' and second lens frame 150 being packed into; Step 3: the described rotating cylinder 140 of step 2 is packed in the stationary magazine creel 110, more protruding handle 141 is fixed on the rotating cylinder 140.
From the above mentioned, the zoom mechanism of the utility model camera lens module has stationary magazine creel 110, rotating cylinder 140, spring 130,130 ' and two lens frame 120,150, thereby its composition assembly is few, and owing to rotate rotating cylinder 140 by stirring protruding handle 141, first flange 142 of rotating cylinder 140 and second flange 143 and spring 130,130 ' drive first lens frame 120 and second lens frame 150 move along optical axis O direction, thereby, its zoom control is simple, so the zoom mechanism of this camera lens module is simple in structure, volume is little, assembling is simple, with low cost, be fit to be applied in such as have take pictures or the thin electronic installations such as mobile phone of recording function in.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.
Claims (7)
1. the zoom mechanism of a camera lens module, comprise first lens frame, second lens frame, spring, guidance device, rotating cylinder and stationary magazine creel, wherein, be fixed with a lens unit on first lens frame, an optical axis is determined at the center of this lens unit, and this first lens frame is provided with first traveller; Also be fixed with a lens unit on second lens frame, being centered close on the described optical axis of this lens unit, and this second lens frame is provided with second traveller; Fixing barrel casing is located at the outside of rotating cylinder, and the central shaft of rotating cylinder and stationary magazine creel and described light shaft coaxle;
It is characterized in that: described first lens frame and second lens frame all are housed in the rotating cylinder; Described rotating cylinder is provided with first flange and second flange, each flange all has initial location edge, terminal positioning edge and leading edge at least, initial location edge and terminal positioning edge are to be opened on the rotating cylinder barrel along vertical optical axis, and along the circumferential direction reach the determining deviation that axially all staggers, leading edge connects initial location edge and terminal positioning edge; Described both ends of the spring cooperates with first lens frame and second lens frame respectively, and first traveller is resisted against on first flange of rotating cylinder, and second traveller is resisted against on second flange of rotating cylinder; Described guidance device guides described first lens frame and second lens frame to move along the optical axis straight line; Described stationary magazine creel is provided with and along the circumferential direction reaches the gathering sill that radially extends; And the zoom mechanism of this camera lens module also comprises a protruding handle, and protruding handle is fixed on the rotating cylinder and passes the gathering sill of stationary magazine creel.
2. the zoom mechanism of camera lens module as claimed in claim 1 is characterized in that: an end of described stationary magazine creel has a shoulder, is fixed with a lens unit on the shoulder.
3. the zoom mechanism of camera lens module as claimed in claim 2, it is characterized in that: described guidance device comprises an at least one guide pillar and a fixed frame, fixed frame be fastened on the stationary magazine creel shoulder the relative other end at one end, and be equipped with bullport on first lens frame and second lens frame with quantity such as guide pillars, guide pillar one end is fixed on the shoulder of stationary magazine creel, and the other end passes the bullport of first lens frame and second lens frame and is fixed on the fixed frame.
4. the zoom mechanism of camera lens module as claimed in claim 1, it is characterized in that: described guidance device is one to be located on the stationary magazine creel inwall and the chute parallel with optical axis, and first traveller of described first lens frame and second traveller of second lens frame all stretch in the chute.
5. the zoom mechanism of camera lens module as claimed in claim 1 is characterized in that: described first flange and second flange are located at the two ends of rotating cylinder respectively.
6. the zoom mechanism of camera lens module as claimed in claim 1 is characterized in that: the middle part of described rotating cylinder is provided with a perforate, and the perforate both sides of the edge form described first flange and second flange.
7. the zoom mechanism of camera lens module as claimed in claim 6 is characterized in that: described rotating cylinder is provided with guiding groove, and guiding groove is communicated with described perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092902 CN2731482Y (en) | 2004-09-23 | 2004-09-23 | Zoom mechanism of lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092902 CN2731482Y (en) | 2004-09-23 | 2004-09-23 | Zoom mechanism of lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731482Y true CN2731482Y (en) | 2005-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092902 Expired - Fee Related CN2731482Y (en) | 2004-09-23 | 2004-09-23 | Zoom mechanism of lens module |
Country Status (1)
| Country | Link |
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| CN (1) | CN2731482Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401128C (en) * | 2005-12-31 | 2008-07-09 | 财团法人工业技术研究院 | Zoom lens |
| CN101556367B (en) * | 2008-04-10 | 2011-04-20 | 一品光学工业股份有限公司 | Lens driving device applying electromagnetic thrust force |
| CN101526660B (en) * | 2008-03-05 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Shot module |
| CN110045566A (en) * | 2018-01-17 | 2019-07-23 | 卡西欧计算机株式会社 | The operating device for rotating rotary body using control-rod operation and the projection arrangement for having the operating device |
| JP2020008792A (en) * | 2018-07-12 | 2020-01-16 | キヤノン株式会社 | Lens device and imaging apparatus including teh same |
-
2004
- 2004-09-23 CN CN 200420092902 patent/CN2731482Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401128C (en) * | 2005-12-31 | 2008-07-09 | 财团法人工业技术研究院 | Zoom lens |
| CN101526660B (en) * | 2008-03-05 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Shot module |
| CN101556367B (en) * | 2008-04-10 | 2011-04-20 | 一品光学工业股份有限公司 | Lens driving device applying electromagnetic thrust force |
| CN110045566A (en) * | 2018-01-17 | 2019-07-23 | 卡西欧计算机株式会社 | The operating device for rotating rotary body using control-rod operation and the projection arrangement for having the operating device |
| CN110045566B (en) * | 2018-01-17 | 2021-07-27 | 卡西欧计算机株式会社 | Operating device for rotating body by lever operation and projector including the same |
| JP2020008792A (en) * | 2018-07-12 | 2020-01-16 | キヤノン株式会社 | Lens device and imaging apparatus including teh same |
| JP7204361B2 (en) | 2018-07-12 | 2023-01-16 | キヤノン株式会社 | LENS DEVICE AND IMAGING DEVICE HAVING THE SAME |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |