CN102914848A - Driving mechanism of zoom lens - Google Patents
Driving mechanism of zoom lens Download PDFInfo
- Publication number
- CN102914848A CN102914848A CN2011102198348A CN201110219834A CN102914848A CN 102914848 A CN102914848 A CN 102914848A CN 2011102198348 A CN2011102198348 A CN 2011102198348A CN 201110219834 A CN201110219834 A CN 201110219834A CN 102914848 A CN102914848 A CN 102914848A
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- China
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- driving mechanism
- section
- rotary cylinder
- stationary magazine
- magazine creel
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Abstract
The invention relates to a driving mechanism of a zoom lens, which comprises a rotary cylinder, a fixed cylinder, a guide shaft and a lens frame. At least one bump is arranged on the peripheral wall of the rotary cylinder. The fixed cylinder is combined outside the rotary cylinder. At least a guide groove for accommodating the bump and an accommodation chamber communicated with the guide groove are formed on the inner wall of the fixed cylinder. The guide shaft is arranged in the accommodation chamber. The lens frame is combined on the guide shaft by way of sliding along the guide shaft and located in the fixed cylinder. Therefore, the accommodation chamber and the guide groove of the fixed cylinder are communicated and the accommodation chamber is integrated in the cylinder body to effectively reduce the zoom lens and use the volume of the driving mechanism.
Description
Technical field
The present invention is relevant with camera lens, in more detail refers to a kind of driving mechanism of zoom lens.
Background technology
In recent years, along with the progress of image science and technology, such as device for image such as camera, video camera, microscope or scanners, for being convenient for people to carry and use, and tend to gradually miniaturization and lightweight, this will so that the volume of the used zoom lens of these device for image also therefore significantly dwindled.See also Fig. 1 and Fig. 2, be the driving mechanism 100 of known zoom lens and stationary magazine creel 110 structures of using thereof, this stationary magazine creel 110 is provided with accommodation chamber 120 in other place beyond its stack shell, this accommodation chamber 120 in order to be installed with guidance axis 130 for picture frame 140 combinations, made this picture frame 140 can move to reach along this guidance axis 130 purpose of steady focusing.
Yet, the accommodation chamber 120 of above-mentioned stationary magazine creel 110 is additionally set up outside this stationary magazine creel 110, though this kind design can produce the space and move for this picture frame 140 of guiding for guidance axis 130 placements, but also cause driving mechanism 100 volumes too huge, and so that device for image can't really reach miniaturization in design effectively.Therefore, the structural design of known driving mechanism 100 is not attained perfect yet, and the part that still haves much room for improvement.
Summary of the invention
The technical problem to be solved in the present invention is, for the too huge defective of the driving mechanism volume of zoom lens in the prior art, provides a kind of driving mechanism of zoom lens, can effectively reach the purpose of reduced volume.
The technical solution adopted for the present invention to solve the technical problems is, a kind of driving mechanism of zoom lens is provided, and includes rotary cylinder, stationary magazine creel, guidance axis and picture frame.Wherein, has at least one protuberance on the periphery wall of this rotary cylinder; This stationary magazine creel is incorporated into the outside of this rotary cylinder, is formed with at least one guide channel on its inwall in order to hold this protuberance and accommodation chamber and this guide channel is interconnected; This guidance axis is located in this accommodation chamber; This picture frame to be can being incorporated on this guidance axis along the mode that this guidance axis slides, and is positioned at this stationary magazine creel.
By this, utilize above-mentioned design that this accommodation chamber is integrated on the inwall of this stationary magazine creel, and then reach the purpose of compact zoom lens.
Description of drawings
Fig. 1 is the stationary magazine creel of existing driving mechanism and use thereof.
Fig. 2 is the cut-open view of existing driving mechanism.
Fig. 3 is the exploded view of driving mechanism of the present invention.
Fig. 4 is the planimetric map of driving mechanism of the present invention.
Fig. 5 is the planimetric map of stationary magazine creel inwall of the present invention.
Fig. 6 is the cut-open view of stationary magazine creel of the present invention.
Fig. 7 is the cut-open view at screw rod of the present invention place
It is receiving state that Fig. 8 discloses driving mechanism of the present invention.
It is the use state that Fig. 9 discloses driving mechanism of the present invention.
Embodiment
For being illustrated more clearly in the present invention, hereby lifting preferred embodiment and cooperate accompanying drawing to be described in detail as follows.
See also Fig. 3 to Fig. 4, the driving mechanism 1 of preferred embodiment zoom lens of the present invention is located in the device for image (not shown).This driving mechanism 1 includes stationary magazine creel 10, rotary cylinder 20, screw rod 30, guidance axis 40 and picture frame 50.Wherein:
See also Fig. 5, be formed with three guide channels 12 and accommodation chamber 14 on the inner tube wall of this stationary magazine creel 10.Respectively this guide channel 12 has bending place 121, and respectively this guide channel 12 is formed with respectively initiating terminal 122 in an end 16 of this stationary magazine creel 10, in addition, respectively this guide channel 12 is distinguished startup section 123 and zoom section 124, and these start section 123 and respectively are near the groove section extending to this bending place 121 from this initiating terminal 122 places inclination; This zoom section 124 extends horizontally to the groove section of these guide channel 12 ends near this bending place 121.In addition, the continuous Fig. 6 that consults, this accommodation chamber 14 on these stationary magazine creel 10 inner tube walls interconnects with the startup section 123 of a guide channel 12 wherein.
This rotary cylinder 20 is incorporated in this stationary magazine creel 10.Have three protuberances 22 on these rotary cylinder 20 periphery walls, and respectively this protuberance 22 enters by the initiating terminal 122 of correspondence and is arranged in respectively this guide channel 12.
This screw rod 30 is located on this stationary magazine creel abreast with this guidance axis 40, and this screw rod 30 all is arranged in this accommodation chamber 14 with this guidance axis 40.In addition, be arranged with spring 31 on this screw rod 30.
This picture frame 50 is located in this stationary magazine creel 10, and this picture frame 50 is provided with several pieces eyeglasses 60.These picture frame 50 1 ends 52 have perforation 521 and guide hole 522.See also Fig. 7, this perforation 521 is sheathed on this screw rod 30, and this perforation is provided with nut 32 and screws togather with this screw rod 30, and spring 31 two ends on this screw rod 30 respectively with this stationary magazine creel 10 and this picture frame 50 connect to.522 of this guide holes are in order to be sheathed on this guidance axis 40.When the motor (not shown) drove this screw rod 30 rotation, it is smooth-going and stably mobile along this guidance axis 40 that this picture frame 50 can drive these picture frames 50 by this spring 31 and this nut 32.
Generally speaking, device for image reaches the purpose of miniaturization in design in order to save the space, before power-off, can first zoom lens is taken in reaches the fuselage miniaturization that makes device for image and portable purpose to this stationary magazine creel 10.In addition, when the electric power starting of device for image, this driving mechanism 1 will be pushed out to zoom lens on the position that can image on the image sensor in the fuselage of this device for image.
Therefore, when this device for image power-off, this driving mechanism 1 will be receiving state (such as Fig. 8), namely, respectively this protuberance 22 of this rotary cylinder 20 will be arranged in this startup section 123 near these initiating terminal 122 places, and 50 on this picture frame is arranged in this stationary magazine creel 10 near these end 16 places, and this rotary cylinder 20 near this end 16, so that this rotary cylinder 20 and this picture frame 50 can be accommodated in this stationary magazine creel 10 simultaneously.
Moreover, behind the power initiation of this device for image, this rotary cylinder 20 will be driven by the motor (not shown) and rotate, these protuberances 22 of this rotary cylinder 20 are moved in this zoom section 124 along these startup sections 123, and only mobile in this zoom section 124, use with the moving lens barrel (not shown) in the fuselage of this device for image, being pushed out on the position that can image on the image sensor, and make this driving mechanism 1 be varied to use state (such as Fig. 9) by this receiving state.In addition, when this driving mechanism 1 uses state for this, each protuberance 22 of this rotating cylinder 20 can move and drives the purpose that this lens barrel rotates to reach zoom along this zoom section 124, and 50 on this picture frame can drive these eyeglasses 60 and moves along this guidance axis 40 and can reach the effect of focusing.
Again, be the situation of avoiding this rotary cylinder 20 and this picture frame 50 to interfere with each other in mobile generation, when this driving mechanism 1 is changed to this use state by this receiving state, after respectively this protuberance 22 of this rotary cylinder 20 moved to this zoom section 124 by this startup section 123 first, this picture frame 50 just can begin to move along this guidance axis 40.Otherwise, when this driving mechanism 1 uses state variation to this receiving state by this, this picture frame 50 moves to first in aforesaid this stationary magazine creel 10 near behind these end 16 places, and respectively this protuberance 22 of this rotary cylinder 20 is moved in this startup section 123 near these initiating terminal 122 places by this zoom section 124 again.Use the design that utilizes above-mentioned mobile order, so that this device for image is when start or shutdown, the stuck situation of this drive unit 1 can not occur because interfering with each other in this rotary cylinder 20 and this picture frame 50.
Comprehensively the above also cooperates Fig. 4 to Fig. 6 to learn, the present invention is communicated with this guide channel 12 by this accommodation chamber 14 with this stationary magazine creel 10, and this accommodation chamber 14 is integrated on the inwall of this stationary magazine creel 10 and is not used in the purpose that these stationary magazine creel 10 outer modes of warding off in addition accommodation chamber reach effective reduction driving mechanism 1 volume.
Mandatory declaration be, this accommodation chamber 14 of the present invention and guide channel 12 be communicated with and setting position is not limited with above-mentioned, so long as this accommodation chamber 14 is communicated with this guide channel 12, and this accommodation chamber 14 is integrated in person on the inwall of this stationary magazine creel 10, also belongs to the other enforcement aspect of the present invention.
In addition, the above only is the better possible embodiments of the present invention, and the equivalent structure that all application instructions of the present invention and claim are done and method for making change, and ought to be included in the claim of the present invention.
Claims (6)
1. the driving mechanism of a zoom lens is characterized in that, includes:
Rotary cylinder has at least one protuberance on its periphery wall;
Stationary magazine creel is incorporated into the outside of this rotary cylinder, is formed with on its inwall: at least one guide channel, in order to hold this protuberance; Accommodation chamber is interconnected with this guide channel;
Guidance axis is located in this accommodation chamber;
Picture frame can being incorporated on this guidance axis along the mode that this guidance axis slides, and is positioned at this stationary magazine creel.
2. the driving mechanism of zoom lens as claimed in claim 1 it is characterized in that the guide channel of this stationary magazine creel has the bending place, and this guide channel is formed with initiating terminal in an end of this stationary magazine creel; This guide channel is distinguished the section of startup and zoom section, near the groove section of this startup section this initiating terminal place extends to this bending place, and this zoom section extends to the groove section of this guide channel end near this bending place; In addition, this driving mechanism has receiving state and use state, and when this driving mechanism was this receiving state, the protuberance of this rotary cylinder was arranged in this startup section near this initiating terminal place; When this driving mechanism was changed to this use state by this receiving state, the protuberance of this rotary cylinder then was arranged in this zoom section by this startup section, and only mobile in this zoom section.
3. the driving mechanism of zoom lens as claimed in claim 2 is characterized in that during for this receiving state, this picture frame is arranged in this stationary magazine creel near this end place, and this rotary cylinder near this end; When this driving mechanism used state for this, this picture frame then can slide along this guidance axis.
4. the driving mechanism of zoom lens as claimed in claim 3, it is characterized in that, when being changed to this use state by this receiving state, first by after moving to this zoom section near this initiating terminal place in this startups section, this picture frame just can be along this guidance axis slip for the protuberance of this rotary cylinder.
5. the driving mechanism of zoom lens as claimed in claim 3, it is characterized in that, when using state variation to this receiving state by this, this picture frame moves to first in aforesaid this stationary magazine creel near behind this end place, and the protuberance of this rotary cylinder is moved in this startups section near this initiating terminal place by this zoom section.
6. the driving mechanism of zoom lens as claimed in claim 2 is characterized in that the startup section of this accommodation chamber and this guide channel is interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110219834.8A CN102914848B (en) | 2011-08-02 | 2011-08-02 | Driving mechanism of zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110219834.8A CN102914848B (en) | 2011-08-02 | 2011-08-02 | Driving mechanism of zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102914848A true CN102914848A (en) | 2013-02-06 |
| CN102914848B CN102914848B (en) | 2015-06-17 |
Family
ID=47613287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110219834.8A Expired - Fee Related CN102914848B (en) | 2011-08-02 | 2011-08-02 | Driving mechanism of zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102914848B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057705A (en) * | 2001-08-20 | 2003-02-26 | Nidec Copal Corp | Collapsible camera with zoom lens |
| US20030081326A1 (en) * | 2001-10-31 | 2003-05-01 | Pentax Corporation | Lens barrel and cam ring |
| CN101226264A (en) * | 2007-01-17 | 2008-07-23 | 佳能株式会社 | Lens apparatus and image-pickup apparatus |
| CN201340472Y (en) * | 2008-11-28 | 2009-11-04 | 中山联合光电科技有限公司 | Optical lens focusing system rotation and deflection mechanism |
| TW201022756A (en) * | 2008-12-05 | 2010-06-16 | Hon Hai Prec Ind Co Ltd | Zoom lens |
| CN102116923A (en) * | 2009-12-30 | 2011-07-06 | 索尼公司 | Lens barrel and imaging apparatus |
-
2011
- 2011-08-02 CN CN201110219834.8A patent/CN102914848B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057705A (en) * | 2001-08-20 | 2003-02-26 | Nidec Copal Corp | Collapsible camera with zoom lens |
| US20030081326A1 (en) * | 2001-10-31 | 2003-05-01 | Pentax Corporation | Lens barrel and cam ring |
| CN101226264A (en) * | 2007-01-17 | 2008-07-23 | 佳能株式会社 | Lens apparatus and image-pickup apparatus |
| CN201340472Y (en) * | 2008-11-28 | 2009-11-04 | 中山联合光电科技有限公司 | Optical lens focusing system rotation and deflection mechanism |
| TW201022756A (en) * | 2008-12-05 | 2010-06-16 | Hon Hai Prec Ind Co Ltd | Zoom lens |
| CN102116923A (en) * | 2009-12-30 | 2011-07-06 | 索尼公司 | Lens barrel and imaging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102914848B (en) | 2015-06-17 |
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Granted publication date: 20150617 Termination date: 20200802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |