CN205562929U - External camera lens auxiliary device that focuses - Google Patents
External camera lens auxiliary device that focuses Download PDFInfo
- Publication number
- CN205562929U CN205562929U CN201620327539.2U CN201620327539U CN205562929U CN 205562929 U CN205562929 U CN 205562929U CN 201620327539 U CN201620327539 U CN 201620327539U CN 205562929 U CN205562929 U CN 205562929U
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- China
- Prior art keywords
- gear
- auxiliary device
- tooth
- knob
- camera lens
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses an external camera lens auxiliary device that focuses, camera lens include that camera lens main part and jiao encircle, including shell, fixed ring gear, drive gear and knob gear, on the shell was fixed in the camera lens main part, it is peripheral that fixed ring gear is fixed in burnt ring, and drive gear is T type gear outer ring tooth and interior ring tooth, drive gear and knob gear set up in the shell to knob gear parts exposes in the shell outside, and fixed ring gear links to each other with interior ring tooth transmission, and outer ring tooth links to each other with knob gear drive. The utility model discloses an auxiliary device that focuses, changed the drive ratio through the adjusting gear, the fine setting of the ring of realizing focusing, meticulous focusing has strengthened image quality, both hands external force can not direct action on jiao's ring, prevent effectively that the camera lens and the combination position of camera from changing, the camera lens formation of image can not deviate former direction, the structure is ingenious, low cost, simple to operate.
Description
Technical field
This utility model relates to a kind of auxiliary device, particularly relates to external lens focusing auxiliary device.
Background technology
Slr camera application is very extensive, wherein can relate to telephoto lens, and telephoto lens has built-in automatic focusing function mostly,
It is the most convenient to use, and when the camera lens depth of field is shallower or the precision that cannot ensure under low light environment to focus, even cannot focus, particularly
When carrying out amateurish astrophotography by focal length.At this moment manual focus pattern can be switched to.Carry out manual focus to have the disadvantage that: its
One, from the point of view of ordinary people, the precision only by the focusing of manual rotation focusing ring is difficult to ensure that, manual fine-adjusting operations difficulty is relatively
Greatly, it is difficult to adapt to；Its two, during focusing, both hands external force is easy to make camera lens to produce small variations with the block position of camera.According to
Plate scale formula, the least displacement can cause telephoto lens imaging to deviate former direction.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, it is provided that external lens focusing auxiliary device.
In order to achieve the above object, the technical scheme that this utility model is used is:
External lens focusing auxiliary device, camera lens includes lens bodies and burnt ring, including shell, fixing ring gear, travelling gear
And knob gear, described shell is fixed on described lens bodies, and it is peripheral that described fixing ring gear is fixed on described burnt ring, described biography
Moving gear is T-shaped gear, and including outer shroud tooth and inner circular tooth, described travelling gear and knob gear are arranged in shell, and revolve
Button gear parts exposes to outer side, and described fixing ring gear is connected with described inner circular tooth transmission, described outer shroud tooth and described knob
Gear drive is connected.
Preferably, it is connected by gear band or in line tooth between described fixing ring gear and described inner circular tooth.
Preferably, described outer shroud tooth is meshed with described knob gear or is connected by line tooth.
Preferably, the assembling track for adjusting travelling gear position it is provided with in described shell.
Preferably, described fixing ring gear is 1: 10 with the gear ratio of described inner circular tooth.
Preferably, described outer shroud tooth is 1: 3 with the gear ratio of described knob gear.
Preferably, described shell is provided with motor, and the output shaft of described motor is meshed with described knob gear.
The beneficial effects of the utility model are mainly reflected in:
1. have employed focusing auxiliary device, change gear ratio by adjusting gear, the fine setting of focusing ring can be realized, the most right
Jiao, enhances picture quality；
2. both hands external force will not act directly on burnt ring, effectively prevents camera lens from producing change with the block position of camera, and camera lens becomes
As not deviating by former direction；
3. structure is ingenious, with low cost, easy for installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model external lens focusing auxiliary device.
Detailed description of the invention
This utility model provides external lens focusing auxiliary device, can realize burnt ring fine setting.New to this practicality below in conjunction with accompanying drawing
Type technical scheme is described in detail, so that it is more readily understood and grasps.
As it is shown in figure 1, external lens focusing auxiliary device, camera lens includes lens bodies and burnt ring 1, including shell 2, admittedly
Determining ring gear 3, travelling gear 4 and knob gear 5, shell 2 is fixed on lens bodies, i.e. external lens focusing auxiliary dress
Putting and be fixed on camera lens entirely through shell, wherein fix ring gear 3 and be fixed on burnt ring 1 periphery, concrete, fixing ring gear passes through
Screw lock Jiao's ring 1, it is achieved fixing ring gear and the synchronous rotary of burnt ring, travelling gear 4 is T-shaped gear, can realize gear ratio
Adjusting, it includes that outer shroud tooth 6 and inner circular tooth 7, travelling gear 4 and knob gear 5 are arranged in shell 2, and knob tooth
Taking turns 5 parts and expose to outside shell 2, realized the rotation of focusing ring by exposed junction rotary knob gear, fixing ring gear 3 is with interior
Ring tooth 7 transmission is connected, and outer shroud tooth 6 is connected with knob gear 5 transmission.By fixing ring gear 3, travelling gear 4 and knob tooth
Gear ratio between wheel 5 arranges and realizes the fine setting of accurate focal length.
Concrete, fix and be connected by gear band 8 or in line tooth between ring gear 3 with inner circular tooth 7, real by gear band or in line tooth
Existing transmission.Outer shroud tooth 6 is meshed with knob gear 5 or is connected by line tooth, both integral drive or real by line tooth
Existing long-distance transmission, also can use gear band, and when using gear band, knob gear uses two-row structure, a toothrow for
Gear band links, and another toothrow rotates for external contact, and the toothrow diameter for external contact is more than the toothrow for linkage
Diameter, so when concrete rotation process, finger will not touch the toothrow of linkage.
Optimize, in shell 2, be provided with the assembling track for adjusting travelling gear position, by assembling track adjustable driving cog
The position of wheel, to adapt to the telephoto lens of each specification, the external lens focusing auxiliary device of this programme is applicable to be less than
In the telephoto lens of 120mm.
In the specific embodiment of this programme, fixing ring gear 3 is 1: 10 with the gear ratio of inner circular tooth 7.Outer shroud tooth 6 and knob gear
The gear ratio of 5 is 1: 3.Conversion understands, and fixing ring gear 3 is 1: 30 with the gear ratio of knob gear 5, i.e. knob gear rotates
When 30 turns, just 1 turn of Jiao's ring, fully achieves the fine setting of focusing ring.
It addition, this programme also can be optimized, shell 2 is provided with motor, the output shaft of motor and knob gear 5 phase
Engagement, can make to finely tune more accurate by motor, and Focussing is finer.
Finally, after have employed external lens focusing auxiliary device, when carrying out Focussing, both hands external force will not act directly on
On burnt ring, it is only capable of the power that transmission rotates, without producing linear biasing force, can prevent the combination bit of camera lens and camera from buying property
Changing, lens imaging is accurate.
By above description it is found that this utility model discloses external lens focusing auxiliary device, have employed focusing auxiliary
Device, changes gear ratio by adjusting gear, can realize the fine setting of focusing ring, finely focus, enhance picture quality；Double
Hands external force will not act directly on burnt ring, effectively prevents camera lens from producing change with the block position of camera, and lens imaging will not be inclined
From former direction；Structure is ingenious, with low cost, easy for installation.
Above the technical solution of the utility model is fully described, be embodied as it should be noted that of the present utility model
Mode is also not limited by the description set out above, those of ordinary skill in the art according to spirit of the present utility model in structure, side
All technical schemes that the aspect such as method or function uses equivalents or equivalent transformation and formed, all fall within guarantor of the present utility model
Within the scope of protecting.
Claims (7)
1. external lens focusing auxiliary device, camera lens includes lens bodies and burnt ring, it is characterised in that: include shell, consolidate
Determine ring gear, travelling gear and knob gear,
Described shell is fixed on described lens bodies,
It is peripheral that described fixing ring gear is fixed on described burnt ring,
Described travelling gear is T-shaped gear, including outer shroud tooth and inner circular tooth,
Described travelling gear and knob gear are arranged in shell, and knob gear part exposes to outer side,
Described fixing ring gear is connected with described inner circular tooth transmission, and described outer shroud tooth is connected with described knob gear transmission.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: described fixing ring gear and institute
State and be connected by gear band or in line tooth between inner circular tooth.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: described outer shroud tooth is with described
Knob gear is meshed or is connected by line tooth.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: it is provided with use in described shell
In the assembling track adjusting travelling gear position.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: described fixing ring gear and institute
The gear ratio stating inner circular tooth is 1: 10.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: described outer shroud tooth is with described
The gear ratio of knob gear is 1: 3.
External lens focusing auxiliary device the most according to claim 1, it is characterised in that: described shell is provided with stepping
Motor, the output shaft of described motor is meshed with described knob gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327539.2U CN205562929U (en) | 2016-04-18 | 2016-04-18 | External camera lens auxiliary device that focuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620327539.2U CN205562929U (en) | 2016-04-18 | 2016-04-18 | External camera lens auxiliary device that focuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562929U true CN205562929U (en) | 2016-09-07 |
Family
ID=56808281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620327539.2U Expired - Fee Related CN205562929U (en) | 2016-04-18 | 2016-04-18 | External camera lens auxiliary device that focuses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040068A (en) * | 2021-11-05 | 2022-02-11 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN114967023A (en) * | 2022-04-26 | 2022-08-30 | 核工业理化工程研究院 | Quick-release type precision driving assembly and electric optical adjusting frame and adjusting method thereof |
-
2016
- 2016-04-18 CN CN201620327539.2U patent/CN205562929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040068A (en) * | 2021-11-05 | 2022-02-11 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN114967023A (en) * | 2022-04-26 | 2022-08-30 | 核工业理化工程研究院 | Quick-release type precision driving assembly and electric optical adjusting frame and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |