CN207799213U - The focus control of Manual focusing camera lens - Google Patents
The focus control of Manual focusing camera lens Download PDFInfo
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- CN207799213U CN207799213U CN201820208774.7U CN201820208774U CN207799213U CN 207799213 U CN207799213 U CN 207799213U CN 201820208774 U CN201820208774 U CN 201820208774U CN 207799213 U CN207799213 U CN 207799213U
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- moving cylinder
- focus control
- camera lens
- fixed ring
- control according
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Abstract
A kind of focus control of Manual focusing camera lens, including：Rear moving cylinder, preceding moving cylinder, fixed ring and the focusing ring being socketed on successively from outside to inside outside camera lens, wherein：It is connected linkage by planetary gear set between focusing ring and preceding moving cylinder, the interior outside of preceding moving cylinder realizes that the different limit of angular speed links between rear moving cylinder and fixed ring by keyway arrangements respectively.The moving cylinder that the present apparatus is connected two layers is focused in opposite directions or by way of relative movement simultaneously along optical axis direction, enables the rotation of focusing ring polarizers of big angle scope to ensure that camera lens can accurately focus while being greatly reduced overall length of the amount of movement of camera lens entirety so as to shorten camera lens.
Description
Technical field
The utility model relates to a kind of technology in optical device field, the focusing of specifically a kind of Manual focusing camera lens
Device.
Background technology
The camera lens volume that existing mobile post coordination focalizes is all bigger, and weight is all heavier, can exist when taking pictures because
For the phenomenon that camera lens weight is big and camera lens cannot be kept to stablize completely, so as to cause captured image blur.Existing camera lens
Rotatably whole angular range is smaller and remote object distance angle adjustable range is smaller for focusing ring.This is difficult to ensure accurate
Turn to required focusing position.
Utility model content
The utility model is directed to deficiencies of the prior art, proposes a kind of focus control of Manual focusing camera lens,
It is focused, is greatly reduced in opposite directions or by way of relative movement simultaneously along optical axis direction the moving cylinder that two layers is connected
The amount of movement of camera lens entirety so as to shorten camera lens overall length while enable focusing ring polarizers of big angle scope rotation to
It ensure that camera lens can accurately focus.
The utility model is achieved through the following technical solutions：
The utility model includes：Be socketed on successively from outside to inside rear moving cylinder outside camera lens, preceding moving cylinder, fixed ring and
Focusing ring, wherein：Be connected linkage by planetary gear set between focusing ring and preceding moving cylinder, the interior outside of preceding moving cylinder respectively with
Realize that the different limit of angular speed links by keyway arrangements between moving cylinder and fixed ring afterwards.
The focusing ring is connected linkage with preceding moving cylinder, is matched by planetary gear set engagement, screw-driven or cam path
It closes and realizes.
The outside of the preceding moving cylinder is equipped with linear cam slot, the fixed ring be equipped with the first screw group with
Match linkage.
The inside of the preceding moving cylinder is equipped with the second screw group, and the corresponding rear moving cylinder is equipped with curve cam slot
Cooperating therewith linkage and the rear moving cylinder are equipped with straight key, and the corresponding fixed ring is equipped with to connect with straight key
Tactile straight slot is to realize limit.
Description of the drawings
Fig. 1 a and Fig. 1 b are the phantom of the camera lens assembling structure；
Fig. 2 is the utility model installation diagram；
Fig. 3 a and Fig. 3 b are respectively the utility model polarizers of big angle scope scale expanded view and existing camera lens scale expanded view
Comparison diagram；
Fig. 4 a are the utility model camera lens outside drawing；
Fig. 4 b are fixed ring schematic diagram；
Fig. 5 is the expanded view of linear cam slot and curve cam slot；
Fig. 6 a and Fig. 6 b are straight keyway sectional view；
Fig. 7 and Fig. 8 is existing cinema scene schematic diagram；
In figure：Focusing ring 1, fixed ring 2, planetary gear 3, preceding moving cylinder 4, rear moving cylinder 5, internal gear 10, wide-angle model
Enclose scale 11, stop screw 22, linear cam slot 40, sun gear 42, straight key 51, the first screw group 20, the second screw group 41,
Curve cam slot 50, straight key 51.
Specific implementation mode
As shown in Figure 1, the regulating device for the manual focusing lens being related to for the present embodiment, including：It covers successively from outside to inside
Rear moving cylinder 5, preceding moving cylinder 4, fixed ring 2 and the focusing ring 1 being connected to outside camera lens, wherein：Focusing ring 1 and preceding moving cylinder 4 it
Between linear cam slot 40 and the first screw group in fixed ring 2 be equipped with by planetary gear set engaged transmission, the outside of preceding moving cylinder 4
20 match linkage, 4 inside of preceding moving cylinder be equipped with the second screw group 41 in rear moving cylinder 5 curve cam slot 50 and and
Straight key 51 matches linkage.
As shown in Fig. 2, the inside of the focusing ring 1 is equipped with internal gear 10, the internal gear 10 and planetary gear 3 and preceding
Sun gear 42 in moving cylinder 4 forms planetary gear set, by rotating focusing ring 1 to pass through internal gear 10 and planetary gear 3
Gear engaged transmission with the sun gear 42 in preceding moving cylinder 4 is to drive the smooth rotation of preceding moving cylinder 4.
As shown in figure 3, the focusing ring 1 is equipped with the scale 11 of polarizers of big angle scope, moving cylinder 5 after which corresponds to
Upper different amount of movement.
As shown in Fig. 1~Fig. 6, the screw that the first screw group 20 is distributed in by three in fixed ring 2 forms, relatively
The preceding moving cylinder 4 described in ground is answered to be equipped with three linear cam slots 40 of circumferentially decile arrangement；When focusing ring 1 is from remote object
When being rotated toward short distance object distance direction away from direction, by the internal gear 10 and planetary gear 3 and preceding moving cylinder 4 of focusing ring 1
Sun gear 42 engaged transmission to before making moving cylinder 4 rotated toward opposite direction with focusing ring 1, according to the first screw group 20 with
The direction of the cooperation of linear cam slot 40 and linear cam slot 40 is to ensure preceding moving cylinder 4 along guide ring in preceding moving cylinder 4
Track movement to being moved backward along optical axis direction.
As shown in fig. 6, the screw that the second screw group 41 is distributed in by three in preceding moving cylinder 4 forms, it is corresponding
Rear moving cylinder 5 described in ground is equipped with the curve cam slot 50 and straight key 51, the fixed ring 2 of circumferentially decile arrangement
It is equipped with the straight slot 21 being in contact with straight key 51.
The movement of the preceding moving cylinder 4 can be decomposed into around optical axis rotation and two moved backward are along optical axis direction
Kind movement, wherein：According to the cooperation of the second screw group 41 and curve cam slot 50 so that rear moving cylinder 5 should also be done along optical axis
It moves backward and the trend of rotation along optical axis, but since straight key 51 is arranged in the straight slot 21 of fixed ring 2 so that rear to move
Dynamic cylinder 5 can only be moved back and forth along optical axis direction.Due to 5 upper curve of cooperation and rear moving cylinder of straight key 51 and straight slot 21
The orientation of cam path 50 is to make rear moving cylinder 5 that should be converted into rear moving cylinder 5 along optical axis simultaneously with preceding moving cylinder 4
It is moved forward along optical axis direction, and the shape of curve cam slot 50 is slope by zero gradual increased curve, which is y
=ax2, wherein y is displacement, and x is the angle of rotation, so that rear movement speed when remote object end position of moving cylinder 5
Slowly, gradually become the nearly movement speed moving cylinder 5 after that gradually becomes faster then as object distance to move in the case where rotating identical angle
Different distance, to the variable motion of moving cylinder 5 after realization.So when focusing ring 1 is from remote object distance to short distance object distance
When direction rotates, preceding moving cylinder 4 and rear moving cylinder 5 move toward one another, and not only ensure that a wide range of Angle focusing but also big in this way
Big shortens total displacement distance, reduces the volume of camera lens.Moving cylinder 4 and institute's shape after 5 transposition of rear moving cylinder before this
At the Forward of last layer guide cylinder, move similar motion mode after next layer of guide cylinder and still set up.
As shown in Fig. 3~Fig. 4, the fixed ring 2 is equipped with the stop screw of the angle for limiting the rotation of focusing ring 1
22。
If Fig. 7 and Fig. 8 is two kinds of existing cinema scenes, the focusing ring angle of rotation of the cinema scene in Fig. 7 as can be seen
Degree is significantly less than the cinema scene of the utility model, and the scale angular range of remote object distance is much smaller than the utility model
Cinema scene.The remote object distance scale angular range of cinema scene in Fig. 8 is much smaller than the cinema scene of the utility model.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the utility model principle and objective with
Different modes carries out it local directed complete set, and the scope of protection of the utility model is subject to claims and not by above-mentioned specific
Implementation is limited, and each implementation within its scope is by the constraint of the utility model.
Claims (9)
1. a kind of focus control of Manual focusing camera lens, which is characterized in that including：It is socketed on outside camera lens successively from outside to inside
Moving cylinder, preceding moving cylinder, fixed ring and focusing ring afterwards, wherein：Focusing ring is connected linkage with preceding moving cylinder, preceding moving cylinder it is inside and outside
It is linked respectively by the different limit of keyway arrangements realization angular speed between rear moving cylinder and fixed ring side.
2. focus control according to claim 1, characterized in that the inside of the preceding moving cylinder is equipped with the second screw
Group, the corresponding rear moving cylinder is equipped with the cooperating therewith linkage of curve cam slot and the rear moving cylinder is equipped with straight
Key, the corresponding fixed ring are equipped with the straight slot being in contact with straight key to realize limit.
3. focus control according to claim 1 or 2, characterized in that it is convex that the outside of the preceding moving cylinder is equipped with straight line
Race, the corresponding fixed ring are equipped with the first cooperating therewith linkage of screw group.
4. focus control according to claim 1 or 2, characterized in that the focusing ring is connected linkage with preceding moving cylinder,
It is realized by planetary gear set engagement, screw-driven or cam path cooperation.
5. focus control according to claim 4, characterized in that the planetary gear set includes:It is set to focusing ring
The internal gear of inside, planetary gear and the sun gear before being set in moving cylinder, by rotating focusing ring to by interior
The smooth rotation of moving cylinder before gear drives with the gear of planetary gear and the sun gear in preceding moving cylinder engaged transmission.
6. focus control according to claim 3, characterized in that the first screw group is distributed in fixed ring by three
On screw composition, correspondingly the preceding moving cylinder be equipped with three linear cam slots of circumferentially decile arrangement.
7. focus control according to claim 2, characterized in that the second screw group is distributed in preceding movement by three
Screw composition on cylinder, correspondingly the rear moving cylinder be equipped with the circumferentially curve cam slot of decile arrangement and straight
Key, the fixed ring are equipped with the straight slot being in contact with straight key.
8. the focus control according to claim 2 or 7, characterized in that the curve cam slot is that slope is gradual by zero
Increased curve, the curve equation are y=ax2, wherein y is displacement, and x is the angle of rotation.
9. focus control according to claim 8, characterized in that the focusing ring is equipped with the quarter of polarizers of big angle scope
Degree, the scale correspond to after in moving cylinder variable motion amount of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820208774.7U CN207799213U (en) | 2018-02-07 | 2018-02-07 | The focus control of Manual focusing camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820208774.7U CN207799213U (en) | 2018-02-07 | 2018-02-07 | The focus control of Manual focusing camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207799213U true CN207799213U (en) | 2018-08-31 |
Family
ID=63275385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820208774.7U Active CN207799213U (en) | 2018-02-07 | 2018-02-07 | The focus control of Manual focusing camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207799213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107538A (en) * | 2018-02-07 | 2018-06-01 | 嘉兴中润光学科技有限公司 | The focus control of Manual focusing camera lens |
-
2018
- 2018-02-07 CN CN201820208774.7U patent/CN207799213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107538A (en) * | 2018-02-07 | 2018-06-01 | 嘉兴中润光学科技有限公司 | The focus control of Manual focusing camera lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 314000 No.188, Taojing Road, Gaozhao street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Zhongrun Optical Technology Co.,Ltd. Address before: 314000 Room 2F201-6, Building 6, Jiaxing Photovoltaic Science Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |