CN102540395A - Zoom lens - Google Patents
Zoom lens Download PDFInfo
- Publication number
- CN102540395A CN102540395A CN2011100939425A CN201110093942A CN102540395A CN 102540395 A CN102540395 A CN 102540395A CN 2011100939425 A CN2011100939425 A CN 2011100939425A CN 201110093942 A CN201110093942 A CN 201110093942A CN 102540395 A CN102540395 A CN 102540395A
- Authority
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- China
- Prior art keywords
- holder
- mirror cell
- lens
- mirror
- optical axis
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Images
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- Lens Barrels (AREA)
Abstract
The invention relates to a zoom lens, which comprises a fixed seat, a driving wheel and at least two lens chambers. The fixing seat is provided with a containing hole extending along the optical axis, the driving wheel is rotatably arranged in the fixing seat by taking the optical axis as the axis, the mirror chambers are movably arranged in the containing hole of the fixing seat along the optical axis, and at least one mirror chamber is mutually connected with the driving wheel.
Description
Technical field
The present invention is relevant with camera lens, is meant a kind of zoom lens especially.
Background technology
The development of digitized video technology is maked rapid progress, and forms images with high pixel except pursuing image, and outside output appeared with the high resolving power quality, the electronic installation of collocation digitized video also must possess technical characterstic such as operating speed and smaller volume faster.For example equipment such as digital camera or projector is used in various environment in order to be convenient to the operator, usually just must accomplish that can let volume reach minimizes, and the design of maximizing performance.
The camera lens of equipment such as existing digital camera or projector; Usually all have the function of focus adjustable, like Fig. 5 and shown in Figure 6, known camera lens has the pre-group mirror cell 72 and back crowd mirror cell 74 that is located in the holder 70 usually; Two mirror cells 72,74 utilize the driven wheel 76 of being located at holder 70 rotations to drive; Can in holder 70, rotate simultaneously and the front and back displacement, change the distance of 72,74 of two mirror cells, and then reach the purpose of adjustment imaging focal length.
Yet along with the volume of digital image apparatus is done littler and littler, camera lens also must be and then more and more littler, makes that each mirror cell relatively can't keep stable position in holder, be easy to generate tilt phenomenon, has increased the puzzlement in the assembling in the assembling process of camera lens.
Summary of the invention
Therefore, the technical matters that the present invention will solve is, can't keep the defective of settling position to each mirror cell in the zoom lens of the prior art, and a kind of zoom lens is provided, and its one-piece construction can be comparatively firm when start.
The technical scheme that the present invention is adopted for its technical matters of solution is, a kind of zoom lens is provided, and includes holder, driven wheel, and at least two mirror cells; This holder has the containing hole along optical axis extending; This driven wheel is the axle center with this optical axis and is located at this holder rotationally; These mirror cells are to be located at along this optical axis in the containing hole of this holder movably, and at least one this mirror cell and this driven wheel link each other; By this, when this driven wheel rotates with respect to this holder, can order about respectively this mirror cell in this holder relatively near or away from.
Respectively this mirror cell of the present invention more can have lens barrel; These lens barrels with this light shaft coaxle be located at the containing hole of this holder, one of them of adjacent two these lens barrels has fitting portion, another this lens barrel has caulking groove; These two adjacent lens barrels in this holder each other near the time; This fitting portion can embed this caulking groove, and when these two adjacent lens barrels each other away from the time, this fitting portion then shifts out this caulking groove.
The wherein end face of this lens barrel of the present invention is provided with the ring wall, and the periphery of this ring wall has at least two extensions that outwards protrude out, and forms out this caulking groove between these two extensions.
The zoom lens of embodiment of the present invention has following beneficial effect: be butted on each caulking groove and Huan Yuan by directly leaning on each fitting portion between first mirror cell of the present invention and second mirror cell, the stability that the two is mutual chimeric when increasing the structure start.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the present invention's one preferred embodiment.
Fig. 2 wherein is each other away from state between first mirror cell and second mirror cell for the part cut-open view of the present invention's one preferred embodiment.
Fig. 3 is the three-dimensional part exploded view of the present invention's one preferred embodiment, and wherein the fitting portion of first mirror cell embeds the caulking groove of second mirror cell.
Fig. 4 is the part cut-open view of the present invention's one preferred embodiment, and wherein the fitting portion of first mirror cell embeds the caulking groove of second mirror cell.
Fig. 5 is the cut-open view of known zoom lens.
Fig. 6 is analogous to Fig. 5, the mirror cell that mainly shows known zoom lens each other near state.
Embodiment
In order to specify structure of the present invention, characteristic and effect place, enumerate now the explanation of a preferred embodiment and conjunction with figs. as after, wherein:
Fig. 1 is the three-dimensional exploded view of the present invention's one preferred embodiment.
Fig. 2 wherein is each other away from state between first mirror cell and second mirror cell for the part cut-open view of the present invention's one preferred embodiment.
Fig. 3 is the three-dimensional part exploded view of the present invention's one preferred embodiment, and wherein the fitting portion of first mirror cell embeds the caulking groove of second mirror cell.
Fig. 4 is the part cut-open view of the present invention's one preferred embodiment, and wherein the fitting portion of first mirror cell embeds the caulking groove of second mirror cell.
See also Fig. 1 and Fig. 2, the zoom lens 10 that the present invention's one preferred embodiment is provided includes holder 20, driven wheel 30, first mirror cell 40, and second mirror cell 50, and this zoom lens 10 is applicable to picture pick-up device or projection arrangement.
This driven wheel 30 also in the form of a ring, the wall of driven wheel 30 has some second guide grooves 32, each second guide groove 32 tilts to extend driven wheel 30 to have predetermined slant ground.Driven wheel 30 is first perisporium 22 that axes sleeve is located at holder 20 with optical axis 18, and each second guide groove, 32 position is corresponding to each first guide groove, 28 position, and driven wheel 30 can rotate with respect to holder 20.
This first mirror cell 40 and this second mirror cell 50 can be designed to pre-group mirror cell and back crowd mirror cell; First mirror cell 40 has first lens barrel 42; The rear end face of first lens barrel 42 is provided with ring wall 44, and the periphery of ring wall 44 has the rear end face that three arcuation extensions, 46, three extensions, 46 isogonisms are arranged in first lens barrel 42; And outwards protrude out from rear end face, form out three caulking grooves 48 by 46 of adjacent extensions.The front end face isogonism that second mirror cell 50 also has second lens barrel, 52, the second lens barrels 52 is provided with three outward extending fitting portions 54.
Composition member through the invention described above; Extremely shown in Figure 4 like Fig. 2; When driven wheel 30 rotates with respect to holder 20 original places; Utilize first guide groove 28, can drive connecting piece along 32 displacements of second guide groove towards oblique extension, so order about first mirror cell 40 and second mirror cell 50 in holder 20 mobile and not rotationally relatively near or away from.Like Fig. 3 and shown in Figure 4; When first and second mirror cell 40,50 each other near the time; The fitting portion 54 of second lens barrel 52 stretches in the caulking groove 48 of first lens barrel 42, is contacted with ring wall 44 until fitting portion 54, makes between first mirror cell 40 and second mirror cell 50 mutual butt and chimeric.And when first and second mirror cell 40,50 each other away from the time, the fitting portion 54 of second lens barrel 52 also can move apart first lens barrel 42 along caulking groove 48.
By this mode, direct by being butted on each caulking groove 48 and ring wall 44 with each fitting portion 54 between first mirror cell 40 of the present invention and second mirror cell 50, the two is comparatively closely chimeric each other, the stability when increasing the structure start.
The present invention can be applied to have the camera lens of two groups of above mirror cells in addition except being applied to the zoom lens of two arrangement of mirrors chambers like aforementioned preferred embodiment.And the design of fitting portion and caulking groove also can be straight line or spiral fashion, and the structure kenel is also interchangeable, as long as design is at the adjacent place of two mirror cells.
The present invention is in the constituent components of preceding taking off among the embodiment to be disclosed, is merely to illustrate, and be not the scope that is used for limiting this case, the substituting or change of other equivalent elements, the claim scope that also should be this case contains.
Claims (3)
1. a zoom lens is characterized in that, includes:
Holder has the containing hole along optical axis extending;
Driven wheel is the axle center and is located at this holder rotationally with this optical axis; And
At least two mirror cells, to be located at movably along this optical axis in the containing hole of this holder, at least one this mirror cell and this driven wheel link each other;
By this, when this driven wheel rotates with respect to this holder, can order about respectively this mirror cell in this holder relatively near or away from.
2. zoom lens as claimed in claim 1 is characterized in that respectively this mirror cell has lens barrel; These lens barrels with this light shaft coaxle be located at the containing hole of this holder, one of them has fitting portion adjacent two these lens barrels, another this lens barrel has caulking groove; These two adjacent lens barrels in this holder each other near the time; This fitting portion can embed this caulking groove, and when these two adjacent lens barrels each other away from the time, this fitting portion then shifts out this caulking groove.
3. zoom lens as claimed in claim 2 is characterized in that the end face of this lens barrel is provided with the ring wall, and the periphery of this ring wall has at least two extensions that outwards protrude out, and forms out this caulking groove between these two extensions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099145813 | 2010-12-24 | ||
| TW099145813A TWI436094B (en) | 2010-12-24 | 2010-12-24 | Zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102540395A true CN102540395A (en) | 2012-07-04 |
| CN102540395B CN102540395B (en) | 2015-04-22 |
Family
ID=46347683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110093942.5A Expired - Fee Related CN102540395B (en) | 2010-12-24 | 2011-04-14 | Zoom lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102540395B (en) |
| TW (1) | TWI436094B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485640A (en) * | 2002-08-27 | 2004-03-31 | ������������ʽ���� | Retractable lens barrel |
| CN1659465A (en) * | 2002-06-05 | 2005-08-24 | 诺基亚有限公司 | Digital camera system with piezoelectric actuators |
| CN101329439A (en) * | 2002-08-27 | 2008-12-24 | 宾得株式会社 | Retracting mechanism for photographing lens |
-
2010
- 2010-12-24 TW TW099145813A patent/TWI436094B/en not_active IP Right Cessation
-
2011
- 2011-04-14 CN CN201110093942.5A patent/CN102540395B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1659465A (en) * | 2002-06-05 | 2005-08-24 | 诺基亚有限公司 | Digital camera system with piezoelectric actuators |
| CN1485640A (en) * | 2002-08-27 | 2004-03-31 | ������������ʽ���� | Retractable lens barrel |
| CN101329439A (en) * | 2002-08-27 | 2008-12-24 | 宾得株式会社 | Retracting mechanism for photographing lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102540395B (en) | 2015-04-22 |
| TW201226965A (en) | 2012-07-01 |
| TWI436094B (en) | 2014-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20170414 |