CN102841426A - Cam lens cone - Google Patents
Cam lens cone Download PDFInfo
- Publication number
- CN102841426A CN102841426A CN2011101679069A CN201110167906A CN102841426A CN 102841426 A CN102841426 A CN 102841426A CN 2011101679069 A CN2011101679069 A CN 2011101679069A CN 201110167906 A CN201110167906 A CN 201110167906A CN 102841426 A CN102841426 A CN 102841426A
- Authority
- CN
- China
- Prior art keywords
- cam
- lens barrel
- penetrating
- section
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The invention relates to a cam lens cone, which comprises a cone body and at least one cam track. The cam track is formed at the inner wall of the cone body and comprises a guide section and a penetrating section; the guide section is arranged along the inner wall and comprises an initial end and a terminating end; the penetrating section is communicated with the initial end; an opening is formed on the lateral brim of the cone body, and moreover, at least one part of the penetrating section is arranged between the guide section and the lateral brim.
Description
Technical field
The present invention is relevant with lens barrel, more detailed is meant a kind of cam lens barrel.
Background technology
Known camera lens, it uses the cam lens barrel to carry out the flexible of camera lens mostly, to reach the purpose that changes lens focus.And known cam lens barrel utilizes external latch to cooperate with cam rail on the lens barrel, uses that the track of lens barrel cam rail capable of using is moved, to reach the purpose of dolly camera.Though above-mentioned design can reach the purpose that changes the mirror focal length, pursuing the light-weighted modern times, the camera lens that mode constituted of external latch can't effectively reduce volume.
Therefore, there is the dealer to research and develop the camera lens that uses another cam structure then, on lens hanger, directly is provided with the projection that cooperates with cam rail; See also Fig. 1; Be the used cam lens barrel 200 of above-mentioned camera lens, its cam rail 210 has the section of penetrating 210a and the lead segment 210b that is connected respectively, and this section of penetrating produces opening 220a in the edge 220 of lens barrel 200; Projection for lens hanger gets into cam rail; Using the mirror crowd who makes on this lens hanger can move the mirror crowd by this cam rail 210 by moving in preset range along this lead segment 210b, to reach the purpose that changes focal length.
Yet; Above-mentioned those sections of penetrating 210a is all to extend setting with the edge 220 vertical modes at this opening 220a place; Cause the extendible space that is provided with of adjacent cam rail 230 blocked by this section of penetrating 210a; Make the movable stroke of eyeglass to extend effectively, and then cause the Zoom effect of camera lens to be restricted.Therefore, comprehensively the above can be learnt, known cam lens barrel 200 is not attained perfect yet, and the part that still haves much room for improvement.
Summary of the invention
The technical matters that the present invention will solve is, the defective to the cam rail of camera lens in the prior art can cause the movable stroke of eyeglass effectively to extend provides a kind of cam lens barrel, the movable stroke of extensible eyeglass.
The technical scheme that the present invention is adopted for its technical matters of solution is, a kind of cam lens barrel is provided, and includes stack shell and at least one cam rail.This cam rail is formed on the inwall of this stack shell, and includes the lead segment and the section of penetrating; This lead segment is provided with along this inwall, has initiating terminal and clearing end; This section of penetrating is connected with this initiating terminal, and is formed with opening in the lateral margin place of this stack shell, and this section of penetrating has at least a part of between its lead segment and this lateral margin.
The cam lens barrel of embodiment of the present invention has following beneficial effect: prolonged the length of cam rail effectively, increased the movable stroke of lens.
Description of drawings
Fig. 1 is the cam rail planimetric map of known cam lens barrel.
Fig. 2 is the camera lens exploded view with cam lens barrel of the present invention.
Fig. 3 is the cam lens barrel stereographic map of preferred embodiment of the present invention.
Fig. 4 is the cam rail planimetric map of the invention described above preferred embodiment.
Fig. 5 is the lens stereo figure with cam lens barrel of the present invention.
Embodiment
For being illustrated more clearly in the present invention, lift now that preferred embodiment and conjunction with figs. specify as after.
See also Fig. 2, for having camera lens 100 structures of the cam lens barrel 1 that the present invention's first preferred embodiment provides, it more includes inner core 110, focusing drum 120 and urceolus 130.Wherein:
Be provided with first lens mount 111 and second lens mount 112 in this inner core 110; And has the limit end 110a that several grooves 113 are formed at this inner core 110; And first perforation 114 that three of formation supply the projection 111a of these first lens mount, 111 lateral margins to pass on inwall; And three second perforation 115 that the projection 112a that supplies these second lens mount, 112 lateral margins passes, and this first lens mount 111 is provided with mirror crowd L1, and this this second lens mount 112 is provided with mirror crowd L2.
This focusing drum 120 is provided with mirror crowd L3, and its ora terminalis 120a inboard is provided with the round bump 121 that several are provided with in pairs, and is provided with several square projections 122 in those round bump 121 places relatively in the ora terminalis 120a outside.
Be formed with several grooves 131 on the inwall of this urceolus 130, this urceolus 130 can be sheathed on this focusing drum 120 in order to cooperate with those square projections 122.And this urceolus 130 is formed with several projections 132 in its ora terminalis 130a, after being sheathed on this focusing drum 120 when this urceolus 130, combines with groove 113 on this inner core 110, uses the effect that reaches fixing.
Below only narration and the present invention are preferable implements other member that sharp cam lens barrel 1 is associated, and below describes with regard to the structure of the cam lens barrel 1 of preferred embodiment of the present invention more now:
This cam lens barrel 1 usefulness is for combining with this inner core 110, and is positioned at the outside of this inner core 110.See also Fig. 3 and Fig. 4, this cam lens barrel 1 is provided with three first inner cam tracks 10, three second inner cam tracks 20 and six outer cam tracks 30 in stack shell.Those first inner cam tracks 10 are formed on the inwall 1a of this cam lens barrel 1, and include first lead segment 11 and first section of penetrating 12 respectively.This first lead segment 11 is provided with along this inwall 1a, and has initiating terminal 11a and clearing end 11b, uses the movable stroke of the mirror crowd L1 that constitutes this first lens mount 111.This first section of penetrating 12 is arranged between the lateral margin 40 of this first lead segment 11 and this cam lens barrel 1, and is connected with this initiating terminal 11a, and in other words, promptly this first section of penetrating 12 is toward this first lead segment, 11 directions bending.In addition, this first section of penetrating 12 is formed with opening 40a in these lateral margin 40 places, uses projection 111a this opening capable of using 40a for this first lens mount 111 to get in this first inner cam track 10.If first inner cam track 10 is projected on the lateral margin 40 of this cam lens barrel 1, the projection of this opening 40a is between the projection of the projection of the initiating terminal 11a of first lead segment 11 and clearing end 11b.This has prolonged first section of penetrating 12 of first inner cam track 10 and the length of first lead segment 11 effectively, has increased the movable stroke of first lens mount 111.
Those second inner cam tracks 20 are formed on the inwall 1a of this cam lens barrel 1, and its track is different from the track of this first inner cam track 10, and include second lead segment 21 and second section of penetrating 22 respectively.This second lead segment 21 is provided with along this inwall 1a; And than this first lead segment 11 near this lateral margin 40; And have initiating terminal 21a and clearing end 21b equally; And this clearing end 21b extends between this first lead segment 11 and this lateral margin 40, but not through this first section of penetrating 12, uses the movable stroke that constitutes the mirror crowd L2 on this second lens mount 112.Because first section of penetrating 12 of first inner cam track 10 bends towards the direction away from second section of penetrating of second inner cam track 20; Therefore can two adjacent opening 40a, the spacing between the 40b be reduced; Thus; The clearing end 21b of second inner cam track 20 can extend fartherly on the inwall 1a of cam lens barrel 1, thereby reaches prolongation activity stroke, and can not produce the purpose of interfering to other inner cam tracks.This second section of penetrating 22 is connected with this initiating terminal 21a, and straight line extends to the opening 40b that this lateral margin 40 forms this second lens mount of confession 112 upper protruding block 112a entering.
Those outer cam tracks 30 are arranged at respectively on the outer wall 1b of this cam lens barrel 1 with the mode of paired and spiral; And those outer cam tracks 30 are formed with opening 50a respectively at another lateral margin 50 of this cam lens barrel 1; Use round bump 121 to get in those outer cam tracks 30, use making this focusing drum 120 combine with this cam lens barrel 1 in a movable manner for this focusing drum 120.
By this; After these camera lens 100 each members and the 1 combination completion of this cam lens barrel, as shown in Figure 5, rotate this urceolus 130 and can drive this focusing drum 120 and 110 rotations of this inner core simultaneously; So that this focusing drum 120 moves along those outer cam tracks 30; Use that this camera lens 100 is stretched, and in this simultaneously, first lens mount 111 and second lens mount 111 in this inner core 110 also move along those inner cam tracks 10,20; To adjust the spacing of those mirrors crowd L1, L2, L3, reach the purpose of these camera lens 100 focal lengths of adjustment.
Comprehensively the above can learn that cam lens barrel 1 of the present invention can reach effective prolongation mirror crowd's movable stroke, so that the Zoom effect person of getting a promotion of camera lens.
The above is merely the preferable possible embodiments of the present invention, and 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 (3)
1. a cam lens barrel is characterized in that, comprises:
Stack shell;
At least one cam rail is formed on the inwall of this stack shell, and includes the lead segment and the section of penetrating; This lead segment is provided with along this inwall, has initiating terminal and clearing end; This section of penetrating is connected with this initiating terminal, and is formed with opening in the lateral margin place of this stack shell, and this section of penetrating has at least a part of between its lead segment and this lateral margin.
2. cam lens barrel according to claim 1 is characterized in that this at least one cam rail includes first cam rail and second cam rail; The section of penetrating of this first cam rail has at least a part of between its lead segment and this lateral margin; The clearing end of this second cam rail is between the lead segment and this lateral margin of this first cam rail, and the section of penetrating through this first cam rail not.
3. cam lens barrel according to claim 1; It is characterized in that; Said first inner cam track is projected on the lateral margin of said cam lens barrel, and the projection of the opening of said first inner cam track is between the projection of the projection of the initiating terminal of its lead segment and clearing end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101679069A CN102841426A (en) | 2011-06-21 | 2011-06-21 | Cam lens cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101679069A CN102841426A (en) | 2011-06-21 | 2011-06-21 | Cam lens cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102841426A true CN102841426A (en) | 2012-12-26 |
Family
ID=47368955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101679069A Pending CN102841426A (en) | 2011-06-21 | 2011-06-21 | Cam lens cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102841426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338665A (en) * | 2013-07-31 | 2015-02-11 | 豪雅冠得股份有限公司 | Light illuminating apparatus |
| CN104749737A (en) * | 2013-12-25 | 2015-07-01 | 佳能株式会社 | Lens barrel, and image pickup apparatus having the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967306A (en) * | 2005-11-16 | 2007-05-23 | 宾得株式会社 | Cam mechanism of a telescoping lens barrel |
| CN101614869A (en) * | 2008-06-26 | 2009-12-30 | 清溢精密光电（深圳）有限公司 | A kind of transmission illumination system of microscope |
| JP2010008634A (en) * | 2008-06-26 | 2010-01-14 | Nidec Copal Corp | Lens barrel |
-
2011
- 2011-06-21 CN CN2011101679069A patent/CN102841426A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967306A (en) * | 2005-11-16 | 2007-05-23 | 宾得株式会社 | Cam mechanism of a telescoping lens barrel |
| CN101614869A (en) * | 2008-06-26 | 2009-12-30 | 清溢精密光电（深圳）有限公司 | A kind of transmission illumination system of microscope |
| JP2010008634A (en) * | 2008-06-26 | 2010-01-14 | Nidec Copal Corp | Lens barrel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338665A (en) * | 2013-07-31 | 2015-02-11 | 豪雅冠得股份有限公司 | Light illuminating apparatus |
| CN104338665B (en) * | 2013-07-31 | 2019-05-21 | 豪雅冠得股份有限公司 | Light irradiation device |
| CN104749737A (en) * | 2013-12-25 | 2015-07-01 | 佳能株式会社 | Lens barrel, and image pickup apparatus having the same |
| US9817204B2 (en) | 2013-12-25 | 2017-11-14 | Canon Kabushiki Kaisha | Lens barrel, and image pickup apparatus having the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008216440A5 (en) | ||
| JP2014115410A5 (en) | ||
| JP2011232543A5 (en) | ||
| CN208609080U (en) | CCD camera assembly and electronic equipment | |
| CN208739253U (en) | Camera module and electronic equipment | |
| JP2006276445A5 (en) | ||
| EP2698659A3 (en) | Zoom lens and image pickup apparatus including the same | |
| JP2005292524A5 (en) | ||
| JP2013029569A5 (en) | ||
| JP2017161567A5 (en) | ||
| JP4889519B2 (en) | Inner focus zoom lens barrel | |
| JP2015138122A5 (en) | ||
| JP2014149483A5 (en) | ||
| CN102841426A (en) | Cam lens cone | |
| JP2008170576A5 (en) | ||
| JP2018101103A5 (en) | ||
| JP2009025366A5 (en) | ||
| JP2006053408A (en) | Zoom adjustment mechanism for zoom lens barrel | |
| JP2013160901A5 (en) | ||
| JP2013167749A5 (en) | ||
| CN103676073A (en) | Lens barrel assembly and photographing apparatus including the same | |
| CN208739252U (en) | Lens assembly and electronic equipment | |
| JP2006047771A5 (en) | ||
| JP2003149563A5 (en) | ||
| TW201409108A (en) | Adjust structure of the zoom lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |