CN107991749A - Focus adjusting mechanism and its applicable camera lens - Google Patents
Focus adjusting mechanism and its applicable camera lens Download PDFInfo
- Publication number
- CN107991749A CN107991749A CN201610947695.3A CN201610947695A CN107991749A CN 107991749 A CN107991749 A CN 107991749A CN 201610947695 A CN201610947695 A CN 201610947695A CN 107991749 A CN107991749 A CN 107991749A
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- Prior art keywords
- groove
- focusing
- lens
- adjusting mechanism
- barrier part
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a kind of focus adjusting mechanism and its applicable camera lens, focus adjusting mechanism is suitable for adjustment lens subassembly, including focusing barrier part and an at least auxiliary positioning component.Wherein focusing barrier part is rotationally sheathed on lens subassembly, and barrier part of focusing has an at least groove, and groove has side wall.Each auxiliary positioning component includes the lantern ring and fixing piece, and the wherein lantern ring is arranged at groove and lens subassembly, and collar portion match with the side wall of groove, and fixing piece is arranged in the lantern ring, and is fixedly arranged on lens subassembly.When barrier part of focusing rotates, auxiliary positioning component is moved along the opposite focusing barrier part of groove so that lens subassembly by drive to focus.The auxiliary positioning component to match by setting with trenched side-wall, to reduce the abrasion of groove, while increases the precision and stability of lens focusing, and then the effect of lifting image quality.
Description
Technical field
The present invention is espespecially a kind of focus adjusting mechanism with auxiliary positioning component and its applicable on a kind of focus adjusting mechanism
Camera lens.
Background technology
In the product that projector, camera etc. have camera lens, Zoom lens multiplying power is generally required to adjust focal length.Existing skill
In art, by setting roller (Roller) to cooperate in the groove on lens housing to guide and drive camera lens to be stretched
Contracting and focusing, wherein groove can be because using unlike material, and has different machining features.
In general, camera lens in test phase, is refinement density and stability, can be tested using metal valley.And
During to the volume production stage, plasticizing groove can be generally used instead, so that camera lens overall weight mitigates, while reduce production cost.
However, since plasticizing groove is plastic material, its hardness is relatively low, when roller relatively easily causes mill when being moved in groove
Damage.Also, because plastics are when carrying out ejection formation, need to pulling out film angle, could to carry out demoulding release, and groove internal cause pulls out film angle
Shape caused by degree can be with roller contact friction so that groove is easily deformed because of abrasion, and camera lens is also easy to produce rolling when focusing
Dynamic or inclination, and then influence image quality.
Therefore how to develop it is a kind of be different from past focus adjusting mechanism and its applicable camera lens, it is of the prior art to improve
Problem and shortcoming, and reduce roller and worn caused by when groove moves, while increase the precision and stability of focusing, with up to
The effect of to lifting image quality, actually the emphasis problem in current technical field.
The content of the invention
The main object of the present invention is foregoing previous to solve and improve to provide a kind of focus adjusting mechanism and its applicable camera lens
The problem of technology and shortcoming.
Another object of the present invention is provides a kind of focus adjusting mechanism and its applicable camera lens, by setting and trenched side-wall phase
Matched auxiliary positioning component, to reduce the abrasion of groove, makes groove less yielding, to lift auxiliary positioning component in groove
Mobile stability.
Another object of the present invention is to supply a kind of focus adjusting mechanism and its applicable camera lens, by auxiliary positioning component and focusing
The groove forming face contact of barrier part, the effect of increasing the precision and stability of lens focusing, and then lift image quality.
In order to achieve the above object, the preferable embodiment aspect of the present invention is a kind of focus adjusting mechanism of camera lens, suitable for adjustment one
Lens subassembly, the focus adjusting mechanism include：One focusing barrier part, is rotationally sheathed on the lens subassembly, and the focusing barrier part has
An at least groove, the groove have one side wall；And an at least auxiliary positioning component, each of which auxiliary positioning component bag
Include：One lantern ring, is arranged at the groove and the lens subassembly, and the collar portion match with the side wall of the groove；And
One fixing piece, is arranged in the lantern ring, and is fixedly arranged on the lens subassembly；Wherein, when the focusing barrier part rotates, the auxiliary positioning group
Part is moved along the groove relative to the focusing barrier part, so that the lens subassembly is by driving to focus.
In order to achieve the above object, another preferably embodiment aspect of the present invention is a kind of camera lens, including：One lens subassembly, including
One lens and a housing, the wherein housing are sheathed on the lens；And a focus adjusting mechanism, including：One focusing barrier part, rotationally
The housing is sheathed on, and the focusing barrier part has an at least groove, which has one side wall；An and at least auxiliary positioning group
Part, each of which auxiliary positioning component include：One lantern ring, is arranged at the groove and the housing, and partly with the groove
The side wall match；And a fixing piece, the lantern ring is arranged in, and be fixedly arranged on the lens；Wherein, when the focusing barrier part rotates
When, which moves along the groove relative to the focusing barrier part, so that the lens subassembly is by driving to focus.
Brief description of the drawings
Fig. 1 shows the focus adjusting mechanism of present pre-ferred embodiments and its structure diagram of applicable camera lens.
Fig. 2 shows the thin portion structure diagram of the focus adjusting mechanism shown in Fig. 1.
Fig. 3 shows the sectional view of the focus adjusting mechanism shown in Fig. 2.
Wherein, reference numeral
1：Focus adjusting mechanism
2：Lens subassembly
20：Lens
21：Housing
210：Pod
3：Focusing barrier part
30：Groove
4：Auxiliary positioning component
40：The lantern ring
400：Head
401：Extension
41：Fixing piece
L1：Internal diameter furrow width
L2：Outside diameter furrow width
H：Perforation
S：Outer circumferential surface
W：Side wall
P1：First anchor point
P2：Second anchor point
Embodiment
Embodying some exemplary embodiments of feature of present invention and advantage will describe in detail in the explanation of back segment.It should be understood that
It is that the present invention can have various changes in different aspects, it is neither departed from the scope of the present invention, and explanation therein
And diagram is illustrated as being used in itself, and nand architecture is in the limitation present invention.
Please refer to Fig.1, Fig. 2 and Fig. 3, wherein Fig. 1 show the focus adjusting mechanism of present pre-ferred embodiments and its applicable mirror
The structure diagram of head, Fig. 2 show that the thin portion structure diagram of the focus adjusting mechanism shown in Fig. 1, and Fig. 3 are shown shown in Fig. 2
The sectional view of focus adjusting mechanism.As shown in Figure 1, Figure 2 and Figure 3, the focus adjusting mechanism 1 of camera lens of the invention is suitable for adjustment lens subassembly
2, and focus adjusting mechanism 1 includes focusing barrier part 3 and an at least auxiliary positioning component 4, wherein lens subassembly 2 is for example but does not limit the use of
In projector or the lens subassembly of camera, auxiliary positioning component is such as, but not limited to roller assembly.
Design according to the present invention, focusing barrier part 3 are rotationally sheathed on lens subassembly 2, and barrier part 3 of focusing has at least
One groove 30, groove 30 have side wall W.Also, each auxiliary positioning component 4 includes the lantern ring 40 and fixing piece 41, the wherein lantern ring
40 are arranged at groove 30 and lens subassembly 2, and side wall W of the lantern ring 40 partly with groove 30 matches, and fixing piece 41 is worn
In the lantern ring 40, and it is fixedly arranged on lens subassembly 2.Thereby, the lantern ring 40 is firmly fixed.
Wherein, when barrier part 3 of focusing rotates, auxiliary positioning component 4 is moved along groove 30 relative to focusing barrier part 3, so that thoroughly
Mirror assembly 2 is by driving to focus.For example, when barrier part 3 of focusing rotates, auxiliary positioning component 4 is along groove 30 in the
Opposite focusing barrier part 3 is moved back and forth between one anchor point P1 and the second anchor point P2 so that lens subassembly 2 by drive it is flexible with
Focus.And since auxiliary positioning component 4 has been fixedly arranged on lens subassembly 2, therefore moved along the opposite focusing barrier part 3 of groove 30
It is dynamic, do not rotated because rotating focusing barrier part 3.
In some embodiments, auxiliary positioning component 4 is arranged in groove 3 and is fixedly arranged on lens subassembly 2, wherein being fixedly arranged on
The mode of lens subassembly 2 is for example buried, is embedded or worn, but is not limited thereto.And the lantern ring 40 can be such as roller, fixing piece
41 can be such as bolt, but all be not limited.
Design, the lantern ring 40 further include head 400 and extension 401 according to the present invention, and wherein head 400 has outer circumferential surface
S, and outer circumferential surface S and the side wall W of groove 30 match, and the extension 401 of the lantern ring 40 extends from head 400, and extend
Portion 401 has perforation H, and wherein fixing piece 41 is fixedly arranged on lens subassembly 2 after being arranged in perforation H.
In some embodiments, the outer circumferential surface S on head 400 is tapered face, as from head 400 toward 401 direction of extension
Gradually the surface reduced, is matched with the side wall W with groove 30 and forming face contacts.Since focusing barrier part 3 is mostly plastic material,
There need to be a drafting angle when machine-shaping, it is release in favor of demoulding, therefore the internal diameter furrow width L1 of groove 30 is less than outside diameter furrow width L2,
And the outer circumferential surface S on head 400 is inclined-plane, is matched with the side wall W with the groove 30 with drafting angle.Yi Yan's, work as groove
During 30 side wall W ecto-entads decrement, head 400 is matched with identical angle and the side wall W profiles reduced.In other realities
Apply in example, 400 upper limb of head has the first girth, and head 400 has the second girth with 401 joint of extension, wherein first
Girth is more than the second girth, so that outer circumferential surface S is in a tapered surface, but is not limited thereto.
In other words, the present invention is by providing a kind of focus adjusting mechanism, by the auxiliary positioning set and trenched side-wall matches
Component, contacts auxiliary positioning component and the groove forming face for barrier part of focusing, to reduce the abrasion of groove, and makes auxiliary positioning group
Stability lifting of part when groove is relative to focusing barrier part movement, and then the effect of lifting image quality.It should be noted that
The present invention is common to tight shot and zoom lens, and the focus adjusting mechanism can be used to adjust the distance such as camera lens in practice
The suitable burnt section of (Zoom in/out), adjustment or other optical properties on camera lens, the and for example switching of optical filter or aperture etc.
(not shown), physical property is general applicatory in the camera lens adjustment in mechanism such as, this is the correlation technique people of known this area
Member concept and associable purposes according to the present invention.
Design, lens subassembly 2 further include lens 20 and housing 21 according to the present invention, its middle casing 21 is sheathed on lens
20, focusing barrier part 3 is rotationally sheathed on housing 21, and the lantern ring 40 is arranged at housing 21, and fixing piece 41 is fixedly arranged on lens 20, with
Focus adjusting mechanism 1 and lens subassembly 2 is set to form a camera lens, with applied to devices such as projector or cameras.
In other words, the present invention provides a kind of camera lens, including focus adjusting mechanism 1 and lens subassembly 2, wherein lens subassembly 2 include
Lens 20 and housing 21, housing 21 are sheathed on lens 20.Focus adjusting mechanism 1 includes focusing barrier part 3 and auxiliary positioning component 4, wherein
Focusing barrier part 3 is rotationally sheathed on housing 21, and barrier part 3 of focusing has an at least groove 30, and groove 30 has side wall W.And
And each auxiliary positioning component 4 includes the lantern ring 40 and fixing piece 41, the wherein lantern ring 40 is arranged at groove 30 and housing 21, and
The lantern ring 40 partly matches with the side wall W of groove 30, and fixing piece 41 is arranged in the lantern ring 40, and is fixedly arranged on lens 20.Wherein,
When barrier part 3 of focusing rotates, auxiliary positioning component 4 is moved along groove 30 relative to focusing barrier part 3, so that lens subassembly 2 is driven
To focus.
There are an at least pod 210, respective grooves 30 to set for design according to the present invention, housing 21.For example, housing
21 pod 210 is set along the direction that lens subassembly 2 stretches when focusing, and pod 210 is adjacent to the groove of focusing barrier part 3
30 so that auxiliary positioning component 4 along groove 30 move when, while move along pod 210, with drive lens component 2 and adjusted
Jiao, wherein groove 30, auxiliary positioning component 4 and pod 210 correspond setting, and quantity is neither limited with one.
In some embodiments, fixing piece 41 is such as bolt, and has bolt head and threaded portion, bolt head and the lantern ring 40
Head 400 fasten, and threaded portion is arranged in perforation and H and is screwed togather with lens 20, so that auxiliary positioning component 4 is integrally fastened to
Lens subassembly 2, so that lens subassembly 2 is driven and stretched when focusing.
In other embodiments, groove 30 is for example bent ditch, and the cylinder face of bent bank focusing barrier part 3 extends.Citing and
Speech, the focusing barrier part 3 of focus adjusting mechanism 1 have three grooves 30, are evenly distributed in the cylinder face of focusing barrier part 3, such as in 360 degree
120 degree of settings are respectively separated on cylinder face, and there are focus adjusting mechanism 1 three auxiliary positioning components 4 to be respectively arranged at three grooves 30,
When barrier part 3 of focusing rotates, three auxiliary positioning components 4 are moved along three grooves 30 relative to focusing barrier part 3 respectively, so that lens
Component 2 is not limited thereto by driving to focus.
In conclusion the present invention provides a kind of focus adjusting mechanism and its applicable camera lens, by setting and trenched side-wall phase
The auxiliary positioning component matched somebody with somebody, to reduce the abrasion of groove, makes groove less yielding, is moved with lifting auxiliary positioning component in groove
Dynamic stability.Also, contacted by auxiliary positioning component with the groove forming face for barrier part of focusing, increase the precision of lens focusing
Degree and stability, and then the effect of lifting image quality.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any to be familiar with this area
Related technical personnel, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, but these are changed
It should be all contained in the protection domain of appended claims of the present invention with retouching.
Claims (10)
1. a kind of focus adjusting mechanism of camera lens, suitable for adjusting a lens subassembly, it is characterised in that the focus adjusting mechanism includes：
One focusing barrier part, is rotationally sheathed on the lens subassembly, and the focusing barrier part has an at least groove, which has
One side wall；And
An at least auxiliary positioning component, each of which auxiliary positioning component include：
One lantern ring, is arranged at the groove and the lens subassembly, and the collar portion match with the side wall of the groove；And
One fixing piece, is arranged in the lantern ring, and is fixedly arranged on the lens subassembly；
Wherein, when the focusing barrier part rotates, which moves along the groove relative to the focusing barrier part, so that this is saturating
Mirror assembly is by driving to focus.
2. focus adjusting mechanism as claimed in claim 1, it is characterised in that the lantern ring further includes：
One head, has an outer circumferential surface, and the side wall of the wherein outer circumferential surface and the groove matches；And an extension, have
One perforation, wherein the fixing piece is arranged in the perforation.
3. focus adjusting mechanism as claimed in claim 2, it is characterised in that the outer circumferential surface on the head is a tapered face.
4. the internal diameter furrow width of focus adjusting mechanism as claimed in claim 2, the wherein groove is less than outside diameter furrow width, and the head should
Outer circumferential surface is an inclined-plane.
5. focus adjusting mechanism as claimed in claim 1, it is characterised in that the lens subassembly includes a lens and a housing, the shell
Body is sheathed on the lens, which is rotationally sheathed on the housing, which is arranged at the housing, and the fixing piece is consolidated
Arranged on the lens.
6. focus adjusting mechanism as claimed in claim 5, it is characterised in that the housing has an at least pod, and the corresponding groove is set
Put, when the auxiliary positioning component is moved along the groove, while moved along the pod, so that the lens subassembly is by driving to carry out
Focusing.
7. focus adjusting mechanism as claimed in claim 5, it is characterised in that the fixing piece is a bolt, which has a bolt
Head and a threaded portion, the head of the wherein bolt head and the lantern ring fasten, and the threaded portion be arranged in the perforation and with this
Lens screw togather.
8. focus adjusting mechanism as claimed in claim 1, it is characterised in that when the focusing barrier part rotates, the auxiliary positioning component
Moved back and forth along the groove between one first anchor point and one second anchor point, so that the lens subassembly stretches.
9. focus adjusting mechanism as claimed in claim 1, it is characterised in that the groove is a bent ditch, and the song bank focusing drum
The cylinder face extension of part.
A kind of 10. camera lens, it is characterised in that including：
One lens subassembly, including a lens and a housing, the wherein housing are sheathed on the lens；And
One focus adjusting mechanism, including：
One focusing barrier part, is rotationally sheathed on the housing, and the focusing barrier part has an at least groove, which has side
Wall；And
An at least auxiliary positioning component, each of which auxiliary positioning component include：
One lantern ring, is arranged at the groove and the housing, and partly the side wall with the groove matches；And
One fixing piece, is arranged in the lantern ring, and is fixedly arranged on the lens；
Wherein, when the focusing barrier part rotates, which moves along the groove relative to the focusing barrier part, so that this is saturating
Mirror assembly is by driving to focus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947695.3A CN107991749B (en) | 2016-10-26 | 2016-10-26 | Focusing mechanism and lens suitable for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947695.3A CN107991749B (en) | 2016-10-26 | 2016-10-26 | Focusing mechanism and lens suitable for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107991749A true CN107991749A (en) | 2018-05-04 |
| CN107991749B CN107991749B (en) | 2020-12-08 |
Family
ID=62029175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610947695.3A Active CN107991749B (en) | 2016-10-26 | 2016-10-26 | Focusing mechanism and lens suitable for same |
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| Country | Link |
|---|---|
| CN (1) | CN107991749B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254405A (en) * | 2018-10-31 | 2019-01-22 | 深圳多哚新技术有限责任公司 | A kind of helmet optical module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017090Y (en) * | 2007-01-10 | 2008-02-06 | 亚洲光学股份有限公司 | Lens device |
| CN203950064U (en) * | 2014-07-04 | 2014-11-19 | 深圳银星精工科技发展有限公司 | A kind of focus adjusting mechanism of camera lens and camera lens |
| CN204613556U (en) * | 2015-04-02 | 2015-09-02 | 广州长步道光电科技有限公司 | Focusing mechanism of optical system |
| US20160077304A1 (en) * | 2014-09-17 | 2016-03-17 | Canon Kabushiki Kaisha | Lens barrel and optical apparatus |
| TWM521182U (en) * | 2016-02-18 | 2016-05-01 | Baso Prec Optics Ltd | Correction structure for lens and lens assembly |
-
2016
- 2016-10-26 CN CN201610947695.3A patent/CN107991749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017090Y (en) * | 2007-01-10 | 2008-02-06 | 亚洲光学股份有限公司 | Lens device |
| CN203950064U (en) * | 2014-07-04 | 2014-11-19 | 深圳银星精工科技发展有限公司 | A kind of focus adjusting mechanism of camera lens and camera lens |
| US20160077304A1 (en) * | 2014-09-17 | 2016-03-17 | Canon Kabushiki Kaisha | Lens barrel and optical apparatus |
| CN204613556U (en) * | 2015-04-02 | 2015-09-02 | 广州长步道光电科技有限公司 | Focusing mechanism of optical system |
| TWM521182U (en) * | 2016-02-18 | 2016-05-01 | Baso Prec Optics Ltd | Correction structure for lens and lens assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254405A (en) * | 2018-10-31 | 2019-01-22 | 深圳多哚新技术有限责任公司 | A kind of helmet optical module |
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| Publication number | Publication date |
|---|---|
| CN107991749B (en) | 2020-12-08 |
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