CN204143039U - A kind of steady smooth type optical lens Zoom structure - Google Patents
A kind of steady smooth type optical lens Zoom structure Download PDFInfo
- Publication number
- CN204143039U CN204143039U CN201420686356.0U CN201420686356U CN204143039U CN 204143039 U CN204143039 U CN 204143039U CN 201420686356 U CN201420686356 U CN 201420686356U CN 204143039 U CN204143039 U CN 204143039U
- Authority
- CN
- China
- Prior art keywords
- mirror holder
- projection
- lens barrel
- groove
- moves
- 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.)
- Active
Links
Landscapes
- Projection Apparatus (AREA)
Abstract
Steady smooth type optical lens Zoom structure of the present utility model, comprises lens barrel, variable focal length cylindrical cam and is arranged at first in lens barrel and move mirror holder and second and move mirror holder, variable focal length cylindrical cam, lens barrel offer optical curve groove, gathering sill respectively; Be characterised in that: first move mirror holder and second move mirror holder relative to the periphery of side be arranged at intervals with respectively multiple first extend projection, multiple second extend projection, adjacent first extends the first groove offering between projection and to extend projection with second and match, and offers the second groove extending projection with first and match between adjacent second extension projection.Optical lens Zoom structure of the present utility model, the footpath efficiently reducing mobile mirror holder deeply than, make the zooming procedure of mobile mirror holder more steady, smooth, be convenient to obtain high-quality imaging, avoid the generation of the stuck of mobile mirror holder and slight jumping phenomena.Solve current footpath deeply than the too small problem be not easy to do, beneficial effect is remarkable, easy to utilize.
Description
Technical field
The utility model relates to a kind of steady smooth type optical lens Zoom structure, in particular, particularly relate to a kind of efficiently reduce mobile mirror holder footpath deeply than steady smooth type optical lens Zoom structure.
Background technology
Optical lens is requisite parts in Vision Builder for Automated Inspection, and the quality of camera lens directly has influence on the quality of image quality, affects realization and the effect of algorithm.Optical lens specification is various, can be divided into short-focus lens, middle zoom lens, telephoto lens from focal length; Divide from visual field size and have wide-angle, standard, long shot; Structure is divided and has fixed aperture tight shot, manual iris tight shot, automatic diaphragm fixed focus lens, manual zoom camera lens, automatic zoom camera lens, auto iris motorized zoom lens, electronic three variable (aperture, focal length, focusing are all variable) camera lens etc.
Along with the development of modern society, the demand of long-focus automatic zoom camera lens is more and more stronger, but the long-focus of existing power zoom, heavy caliber camera lens all contains zoom, compensate the optical mirror slip of two movements simultaneously, as everyone knows, whether steadily mobile mirror holder mobile smoothness in lens barrel depends on the diameter of mobile mirror holder and the ratio of width, namely footpath deeply than, footpath is deeply than less, mobile more steady smooth, otherwise then easily stuck or appearance is slightly beated, but long-focus at present, in bigbore camera lens the mobile mirror holder at two eyeglass places be limited to eyeglass moving range and cannot reach desirable footpath deeply than, so just there is above-mentioned problem, result in flating in zooming procedure and alignment is very poor.
Summary of the invention
The utility model in order to overcome the shortcoming of above-mentioned technical matters, provide a kind of efficiently reduce mobile mirror holder footpath deeply than steady smooth type optical lens Zoom structure.
Steady smooth type optical lens Zoom structure of the present utility model, comprise lens barrel, variable focal length cylindrical cam and be arranged at first in lens barrel and move mirror holder and second and move mirror holder, variable focal length cylindrical cam is positioned at the periphery of lens barrel, and variable focal length cylindrical cam, lens barrel offer optical curve groove, gathering sill respectively; First moves mirror holder and second moves on mirror holder and is all fixed with optical mirror slip and guidepost, and guidepost stretches in optical curve groove through after gathering sill; Its special feature is: described first move mirror holder and second move mirror holder relative to the periphery of side be arranged at intervals with respectively multiple first extend projection, multiple second extend projection, adjacent first extends first between projection moves the first groove mirror holder offering and to extend projection with second and match, and between adjacent second extension projection second moves the second groove mirror holder offering and to extend projection with first and match.
Steady smooth type optical lens Zoom structure of the present utility model, described multiple first extend projection institute formed outer radius of a circle and multiple second extension projection to form outer radius of a circle all equal with the internal diameter of lens barrel.
Steady smooth type optical lens Zoom structure of the present utility model: the periphery of described variable focal length cylindrical cam is fixed with gear ring, and lens barrel is fixed with zoom motor, the output shaft of described zoom motor is fixed with the gear be meshed with gear ring.
Steady smooth type optical lens Zoom structure of the present utility model, the described first quantity extending projection and the second groove is 4, and the second quantity extending projection and the first groove is also 4.
The beneficial effects of the utility model are: optical lens Zoom structure of the present utility model, move on mirror holder first and multiple first extension projection is set, first groove, move on mirror holder second and multiple second extension projection is set, second groove, projection is extended with second and the second groove extends coordinating of projection with first by the first groove, achieve first, second zoom moving mirror holder glazing eyeglass, compensate function, when not changing existing lens barrel shape and size, the footpath efficiently reducing mobile mirror holder deeply than, make the zooming procedure of mobile mirror holder more steady, smooth, be convenient to obtain high-quality imaging, avoid the generation of the stuck of mobile mirror holder and slight jumping phenomena.Increase in the utility model mobile mirror holder footpath deeply than simple and reasonable, solve current footpath deeply than the too small problem be not easy to do, beneficial effect is remarkable, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of existing optical lens Zoom structure;
Fig. 2 is the first structural drawing moving mirror holder in the utility model;
Fig. 3 is the second structural drawing moving mirror holder in the utility model;
Fig. 4 is the structural drawing of variable focal length cylindrical cam in the utility model;
Fig. 5 be in the utility model first move mirror holder and second move mirror holder apart from each other time structural drawing;
Fig. 6 be in the utility model first move mirror holder and second move mirror holder at a distance of nearest time structural drawing.
In figure: 1 lens barrel, 2 variable focal length cylindrical cams, 3 first move mirror holder, and 4 second move mirror holder, 5 gathering sills, 6 optical curve grooves, 7 guideposts, 8 zoom motor, 9 gear rings, and 10 first extend projection, 11 first grooves, and 12 second extend projection, 13 second grooves.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1, give the structure principle chart of existing optical lens Zoom structure, it comprises lens barrel 1, variable focal length cylindrical cam 2, first moves mirror holder 3, second and move mirror holder 4, guidepost 7, zoom motor 8 and gear ring 9; Shown in variable focal length cylindrical cam 2 be positioned at the periphery of lens barrel 1, first moves mirror holder 3 and second moves mirror holder 4 and is arranged in lens barrel 1.First moves mirror holder 3 and second moves on mirror holder 4 and is provided with optical mirror slip, by the movement of optical mirror slip to realize zoom and compensate function respectively.Lens barrel 1 offers gathering sill 5 in both sides relatively along its length, according to the mobile route of optical mirror slip on variable focal length cylindrical cam 2, two optical curve grooves 6 can be provided with, move the guidepost 7 that mirror holder 3 fixes and stretch in an optical curve groove 6 with first through after gathering sill 5, move the guidepost 7 that mirror holder 4 fixes stretch in another optical curve groove 6 through after gathering sill 5 with second.
Gear ring 9 is fixed on the periphery of lens barrel 1, and zoom motor 8 and lens barrel 1 fix, and the output shaft of zoom motor 8 are fixed with the gear be meshed with gear ring 9.Variable focal length cylindrical cam 2 can be ordered about rotate when zoom motor 8 rotates, in the process that variable focal length cylindrical cam 2 rotates, ordering about and the position-limiting action of gathering sill 5 pairs of guideposts 7 by optical curve groove 6 pairs of guideposts 7, make first to move mirror holder 3 and second and move mirror holder 4 only along the axial-movement of optical mirror slip, to realize zoom and compensating action.
Existing optical lens Zoom structure given above, the size and first being limited to lens barrel 1 moves zoom, the compensation requirement that mirror holder 3 and second moves optical mirror slip on mirror holder 4, what sometimes need two optical mirror slips to lean on is very near, therefore first move that mirror holder 3 and the second width moving mirror holder 4 be not easy to do excessive, making first to move mirror holder 3 and second, to move the footpath of mirror holder 4 dark larger.In zoom and focusing, easily there is phenomenon that is stuck and that slightly beat in mobile mirror holder, not easily obtains high-quality image.
As shown in Figures 2 and 3, to sets forth in the utility model first and move the structural representation that mirror holder 3 and second moves mirror holder 4, shown first moves mirror holder 3 is arranged at intervals with multiple first extension projection 10 towards the periphery that second moves mirror holder 4 side, the lens barrel 1 between adjacent first extension projection 10 offers the first groove 11.Shown second moves mirror holder 4 is arranged at intervals with multiple second and extends projection 12 towards the periphery that first moves mirror holder 3 side, adjacent second extends second between projection 12 moves on mirror holder 4 and offer the second groove 13.First groove 11 and second extends projection 12 and matches, and the second groove 13 and first extends projection 10 and matches.
Like this, first moves mirror holder 3 and second moves mirror holder 4 and forms mutual-inserting type structure, just be equivalent to add first and move the width that mirror holder 3 and second moves mirror holder 4, the footpath reducing mobile mirror holder deeply than, making first to move mirror holder 3 and second, to move the motion of mirror holder 4 more steady, smooth, is convenient to obtain high-quality image.
As shown in Figure 4, give the structural representation of variable focal length cylindrical cam 2 in the utility model, shown variable focal length cylindrical cam 2 offers two optical curve grooves, 6, two optical curve grooves 6 by with the coordinating of guidepost 7, order about first respectively and move mirror holder 3 and second and move mirror holder 4 and move.
As shown in Figure 5, give first move mirror holder 3 and second move mirror holder 4 apart from each other time structural representation, now first moves mirror holder 3 and second moves mirror holder 4 and does not have overlapped region.As shown in Figure 6, give first move mirror holder 3 and second move mirror holder 4 at a distance of nearest time structural representation, now the first extension projection 10 has stretched in the second groove 13, second extends projection 12 has stretched in the first groove 11, compared with existing optical system Zoom structure, first moves mirror holder 3 and second moves the width that mirror holder 4 is equivalent to add each other, efficiently reduce first move footpath that mirror holder 3 and second moves mirror holder 4 deeply than.
Claims (4)
1. a steady smooth type optical lens Zoom structure, comprise lens barrel (1), variable focal length cylindrical cam (2) and be arranged at first in lens barrel and move mirror holder (3) and second and move mirror holder (4), variable focal length cylindrical cam is positioned at the periphery of lens barrel, variable focal length cylindrical cam, lens barrel offers respectively optical curve groove (6), gathering sill (5); First moves mirror holder and second moves on mirror holder and is all fixed with optical mirror slip and guidepost (7), and guidepost stretches in optical curve groove through after gathering sill; It is characterized in that: described first moves periphery that mirror holder (3) and second moves mirror holder (4) relative side is arranged at intervals with multiple first respectively and extends projection (10), multiple second and extend projection (12), adjacent first extends first between projection moves the first groove (11) mirror holder offering and to extend projection with second and match, and between adjacent second extension projection second moves the second groove (13) mirror holder offering and to extend projection with first and match.
2. steady smooth type optical lens Zoom structure according to claim 1, is characterized in that: described multiple first extend projection (10) institute formed outer radius of a circle and multiple second extension projection (12) to form outer radius of a circle all equal with the internal diameter of lens barrel (1).
3. steady smooth type optical lens Zoom structure according to claim 1 and 2, it is characterized in that: the periphery of described variable focal length cylindrical cam (2) is fixed with gear ring (9), lens barrel (1) is fixed with zoom motor (8), the output shaft of described zoom motor is fixed with the gear be meshed with gear ring.
4. steady smooth type optical lens Zoom structure according to claim 1 and 2, it is characterized in that: the described first quantity extending projection (10) and the second groove (13) is 4, the second quantity extending projection (12) and the first groove (11) is also 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686356.0U CN204143039U (en) | 2014-11-17 | 2014-11-17 | A kind of steady smooth type optical lens Zoom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686356.0U CN204143039U (en) | 2014-11-17 | 2014-11-17 | A kind of steady smooth type optical lens Zoom structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143039U true CN204143039U (en) | 2015-02-04 |
Family
ID=52419718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686356.0U Active CN204143039U (en) | 2014-11-17 | 2014-11-17 | A kind of steady smooth type optical lens Zoom structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040195A (en) * | 2017-12-13 | 2018-05-15 | 湖北华中光电科技有限公司 | A kind of Penetrating Fog television system based on continuous magnification lens |
| CN110542974A (en) * | 2019-01-25 | 2019-12-06 | 广州长步道光电科技有限公司 | Realize high-accuracy zoom industrial lens structure |
-
2014
- 2014-11-17 CN CN201420686356.0U patent/CN204143039U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040195A (en) * | 2017-12-13 | 2018-05-15 | 湖北华中光电科技有限公司 | A kind of Penetrating Fog television system based on continuous magnification lens |
| CN110542974A (en) * | 2019-01-25 | 2019-12-06 | 广州长步道光电科技有限公司 | Realize high-accuracy zoom industrial lens structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107976791B (en) | Super-large-magnification continuous zooming uncooled infrared lens | |
| JP2014130375A5 (en) | ||
| JP2011232543A5 (en) | ||
| CN203950064U (en) | A kind of focus adjusting mechanism of camera lens and camera lens | |
| JP2010044102A (en) | Inner focus zoom lens barrel | |
| CN204143039U (en) | A kind of steady smooth type optical lens Zoom structure | |
| JP2011232542A5 (en) | ||
| CN210428063U (en) | Zoom lens of engineering projector | |
| CN102360112A (en) | Automatic focusing mechanism and automatic focusing method | |
| CN103217773A (en) | Variable-focus photographic module of mobile phone and variable-focus mobile phone | |
| CN103472562A (en) | Novel camera lens for shoot | |
| CN201589887U (en) | Dual-purpose lens for both day and night use | |
| CN104849845A (en) | High-definition wide-angle zooming laser illuminator | |
| CN203519910U (en) | Mobile phone external lens | |
| WO2018079422A8 (en) | Method for adjusting magnifying glass and magnifying glass | |
| CN104459962A (en) | Power 2.8-12 zoom and power focus monitoring lens and control method thereof | |
| CN201773213U (en) | Zooming system | |
| CN201796184U (en) | Telescope and lens set with additional focal-length adjusting lens | |
| CN108107538B (en) | Focusing device of manual focusing lens | |
| CN106125277A (en) | High-contrast high resolution day and night motorized zoom lens and focus adjustment method thereof | |
| CN207833095U (en) | A kind of focal length zoom lens of the big image planes of large aperture | |
| CN206002765U (en) | High-contrast high resolution day and night motorized zoom lenses | |
| CN206479696U (en) | A kind of smart home wide-angle high definition camera lens | |
| CN206741074U (en) | Internal focusing telescope objective lens | |
| CN203241608U (en) | Refraction/diffraction zooming infrared thermal imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |