CN101661149B - Focusing device - Google Patents
Focusing device Download PDFInfo
- Publication number
- CN101661149B CN101661149B CN2008103041652A CN200810304165A CN101661149B CN 101661149 B CN101661149 B CN 101661149B CN 2008103041652 A CN2008103041652 A CN 2008103041652A CN 200810304165 A CN200810304165 A CN 200810304165A CN 101661149 B CN101661149 B CN 101661149B
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- CN
- China
- Prior art keywords
- focusing ring
- lens module
- grab
- camera lens
- fin
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- 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.)
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Abstract
The invention provides a focusing device which comprises a lens module and a focusing ring, wherein the focusing ring is clamped with the lens module; the outer wall of the lens module is provided with a clamping convex block, and the inner wall of the focusing ring is provided with a clamping hook; the clamping hook is in a wedge shape; the clamping convex block can slide to the other side opposite to the clamping hook from one side of the wedge shape of the clamping hook and is abutted to the clamping hook; the outer wall of the lens module is also provided with a limiting convex block; theinner wall of the focusing ring is also provided with a limiting structure and a notch; the notch is arranged at one side of the clamping hook; the limiting structure is in a shape like the number 7;when the focusing ring is clamped on the lens module, the clamping convex block is abutted on the clamping hook, and the clamping convex block is abutted on the limiting structure. When the lens module is disassembled from the focusing ring, the clamping hook is pulled to the outer side of the focusing ring so that the clamping hook is separated from the clamping convex block in such a way that the clamping hook and the notch are arranged on the focusing ring, thereby taking the lens module out of the focusing ring and preventing the damage of the lens module or the discarding of the focusingring.
Description
Technical field
The present invention relates to a kind of focus control.
Background technology
For convenience projector is focused, on the camera lens module, fix a focusing ring usually, rotate the realization focusing thereby drive the camera lens module by the rotation focusing ring.Focusing ring generally adopts screw to connect two semi-rings and is sandwiched in the camera lens module outside, or adopts the mode of engaging that focusing ring is sticked on the camera lens module.
When adopting the mode of engaging, utilize grab to engage mutually between focusing ring and the camera lens module.Grab is designed to wedge structure, and this wedge structure makes that a direction is easy to snap between the grab, self-locking in the other direction.Thereby after having guaranteed the assembling of focusing ring and camera lens module, can not relatively rotate.
Yet, adopt this snap-on design, when focusing ring unloads from the camera lens module, must adopt destructive dismounting mode, can cause the damage of camera lens module or scrapping of focusing ring thus.
Summary of the invention
In view of this, be necessary to provide a kind of focus control that is easy to dismantle.
A kind of focus control, it comprises camera lens module and the focusing ring that fastens with the camera lens module.Described camera lens module outer wall is provided with the engaging projection, and described focusing ring inwall is provided with grab, and described grab is a wedge shape, and described engaging projection can be from the break away relative opposite side of described grab and be connected to described grab of described grab wedge shape one.Described camera lens module outer wall also is provided with spacing block set, and described focusing ring inwall also is provided with position limiting structure and breach, and described breach is arranged at described grab one side, and described position limiting structure is
Type, described position limiting structure is made up of first fin and second fin of outstanding described inwall, described first fin is along the circumferencial direction setting of focusing ring, described second fin is along the axial setting of focusing ring, described first fin and described second fin intersect vertically, when described focusing ring was sticked on the described camera lens module, described engaging projection was connected on the described grab, and described spacing block set is connected on the described position limiting structure.
By will grab and breach being set on the focusing ring, when the camera lens module is pulled down in focusing ring, grab is pulled the grab of sening as an envoy to the focusing ring outside break away from the engaging projection, thereby the camera lens module is taken out in focusing ring, avoided damage of camera lens module or focusing ring to scrap.
Description of drawings
Fig. 1 is the exploded view of the focus control that provides of embodiment of the present invention.
Fig. 2 is the view after the focus control engaging that provides of embodiment of the present invention.
Fig. 3 is the preceding view of focus control engaging that embodiment of the present invention provides.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 1, Fig. 2 and Fig. 3, a kind of focus control 10 provided by the invention.This focus control 10 comprises camera lens module 100 and focusing ring 200.Described focusing ring 200 is sticked in outside the described camera lens module 100.Described focusing ring 200 is made by resilient material.In the present embodiment, described focusing ring 200 is made of plastics.
Described camera lens module 100 outer walls 110 are processed with engaging projection 111 and spacing block set 112.In the present embodiment, for the ease of processing, described engaging projection 111 and spacing block set 112 all are processed into cylindric.
Described focusing ring 200 comprises inwall 210, grab 211, position limiting structure 212, holding part 213, inner edge 214, breach 215, outer wall 220 and anti-skidding line 221.
Described grab 211 is fixed on the described inwall 210.Described grab 211 protrudes in described inwall 210.Described grab 211 is a wedge shape, and described grab 211 has wedge surface 211a and snap-latch surface 211b.In the present embodiment, described wedge surface 211a is obliquely installed along the circumferencial direction of described inwall 210, and described snap-latch surface 211b is approximately perpendicular to described inwall 210.Described engaging projection 111 described snap-latch surface 211b one side of can breakking away from the wedge surface 211a one of described grab 211, and be connected on the snap-latch surface 211b.
Described position limiting structure 212 is machined on the described inwall 210.Described position limiting structure 212 is
Type.In the present embodiment, described position limiting structure 212 is made up of the first fin 212a and the second fin 212b of outstanding described inwall 210.The described first fin 212a is along the circumferencial direction setting of focusing ring 200, and the described second fin 212b is along the axial setting of focusing ring 200, and described first fin 212a and the described second fin 212b intersect vertically.Described inner edge 214 is machined on the described inwall 210.The aperture R1 of described inner edge 214 is less than the radial dimension R2 of described camera lens module 100, and described inner edge 214 is used for described camera lens module 100 is blocked in the described focusing ring 200.Described inwall 210, the first fin 212a, the second fin 212b and inner edge 214 surround along the described holding part 213 of the circumferencial direction of described focusing ring 200.Be processed with breach 215 in described grab 211 1 sides.Be appreciated that also and can all process described breach 215 in described grab 211 both sides.Described breach 215 roughly axially is provided with along described focusing ring 200.In the present embodiment, axially process two breach 215 along described focusing ring 200, on described focusing ring 200, form elastic cantilever 216 with grab 211 in described grab 211 both sides.Be appreciated that described elastic cantilever 216 and grab 211 also can be to be processed into respectively with described focusing ring 200, utilize glue or hot melt to be secured together again.In the present embodiment, utilize plastic mo(u)lding that described elastic arm 216 and grab 211 are made integrative-structure with described focusing ring 200.
When being assembled into described camera lens module 100 in the described focusing ring 200, earlier camera lens module 100 is inserted described focusing ring 200, one ends and prop up described inner edge 214, more described spacing block set 112 is screwed in described holding part 213 clockwise.Simultaneously, described engaging projection 111 is from the wedge surface 211a one of described grab 211 described snap-latch surface 211b one side of breakking away, and is connected on the snap-latch surface 211b.Thereby by inner edge 214, position limiting structure 212 and grab 211 and described spacing block set 112 and engage engaging between the projection 111, described camera lens module 100 is fixed in the described focusing ring 200.
When described camera lens module 100 is removed from described focusing ring 200, because described focusing ring 200 is made by resilient material, so can pull described elastic cantilever 216 is little laterally, described grab 211 is broken away from described engaging projection 111, be rotated counterclockwise camera lens module 100 simultaneously, described engaging projection 111 by wedge surface 211a one side of snap-latch surface 211b one sidespin that engages projection 111 to described grab 211, is screwed out described holding part 213 with described spacing block set 112 again.
By will grab and breach being set on the focusing ring, when the camera lens module is pulled down in focusing ring, grab is pulled the grab of sening as an envoy to the focusing ring outside break away from the engaging projection, thereby the camera lens module is taken out in focusing ring, avoided damage of camera lens module or focusing ring to scrap.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (7)
1. focus control, it comprises camera lens module and the focusing ring that fastens with the camera lens module, described camera lens module outer wall is provided with the engaging projection, described focusing ring inwall is provided with grab, described grab is a wedge shape, described engaging projection can be from the break away relative opposite side of described grab and be connected to described grab of described grab wedge shape one, it is characterized in that, described camera lens module outer wall also is provided with spacing block set, described focusing ring inwall also is provided with position limiting structure and breach, described breach is arranged at described grab one side, and described position limiting structure is
Type, described position limiting structure is made up of first fin and second fin of outstanding described inwall, described first fin is along the circumferencial direction setting of focusing ring, described second fin is along the axial setting of focusing ring, described first fin and described second fin intersect vertically, when described focusing ring was sticked on the described camera lens module, described engaging projection was connected on the described grab, and described spacing block set is connected on the described position limiting structure.
2. focus control as claimed in claim 1 is characterized in that, described breach is along the axial setting of described focusing ring.
3. focus control as claimed in claim 1 is characterized in that, described grab both sides all are provided with breach, forms the elastic cantilever with grab.
4. focus control as claimed in claim 3 is characterized in that, described elastic cantilever and described focusing ring are structure as a whole.
5. focus control as claimed in claim 1 is characterized in that described focusing ring is made by resilient material.
6. focus control as claimed in claim 1 is characterized in that, described focusing ring outer wall is provided with anti-skidding line.
7. focus control as claimed in claim 1 is characterized in that, described engaging projection and spacing block set structure are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103041652A CN101661149B (en) | 2008-08-25 | 2008-08-25 | Focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103041652A CN101661149B (en) | 2008-08-25 | 2008-08-25 | Focusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101661149A CN101661149A (en) | 2010-03-03 |
| CN101661149B true CN101661149B (en) | 2011-01-19 |
Family
ID=41789272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103041652A Expired - Fee Related CN101661149B (en) | 2008-08-25 | 2008-08-25 | Focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101661149B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573026B (en) * | 2016-03-04 | 2018-01-05 | 潍坊学院 | Projector |
| CN108549140A (en) * | 2018-06-28 | 2018-09-18 | 北京图森智途科技有限公司 | A kind of lens focusing device |
| CN110286551B (en) * | 2019-08-07 | 2021-02-12 | 大连美高光电工程有限公司 | Lens assembly of slide projector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623227A (en) * | 1981-09-02 | 1986-11-18 | Canon Kabushiki Kaisha | Zoom lens mounting |
| CN2874540Y (en) * | 2006-01-18 | 2007-02-28 | 凤凰光学(广东)有限公司 | Lens focus regulating structure of camera |
| CN100394239C (en) * | 2005-09-23 | 2008-06-11 | 亚洲光学股份有限公司 | Varifocus lens device |
| CN201083868Y (en) * | 2007-08-21 | 2008-07-09 | 三星高新电机（天津）有限公司 | Key type clipping lens assembly positioning structure mobile phones pick-up head |
| CN101604064A (en) * | 2008-06-13 | 2009-12-16 | 佛山普立华科技有限公司 | The barrel assembly of focusing ring and application thereof |
-
2008
- 2008-08-25 CN CN2008103041652A patent/CN101661149B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623227A (en) * | 1981-09-02 | 1986-11-18 | Canon Kabushiki Kaisha | Zoom lens mounting |
| CN100394239C (en) * | 2005-09-23 | 2008-06-11 | 亚洲光学股份有限公司 | Varifocus lens device |
| CN2874540Y (en) * | 2006-01-18 | 2007-02-28 | 凤凰光学(广东)有限公司 | Lens focus regulating structure of camera |
| CN201083868Y (en) * | 2007-08-21 | 2008-07-09 | 三星高新电机（天津）有限公司 | Key type clipping lens assembly positioning structure mobile phones pick-up head |
| CN101604064A (en) * | 2008-06-13 | 2009-12-16 | 佛山普立华科技有限公司 | The barrel assembly of focusing ring and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-212884A 2004.07.29 |
| JP特开2008-46492A 2008.02.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101661149A (en) | 2010-03-03 |
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Granted publication date: 20110119 Termination date: 20160825 |