CN102967982A - Blade opening and closing device - Google Patents
Blade opening and closing device Download PDFInfo
- Publication number
- CN102967982A CN102967982A CN2012104451650A CN201210445165A CN102967982A CN 102967982 A CN102967982 A CN 102967982A CN 2012104451650 A CN2012104451650 A CN 2012104451650A CN 201210445165 A CN201210445165 A CN 201210445165A CN 102967982 A CN102967982 A CN 102967982A
- Authority
- CN
- China
- Prior art keywords
- lens group
- group frame
- blade
- driving ring
- closing device
- 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.)
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Abstract
The invention relates to a blade opening and closing device which comprises a lens group frame. A CAM barrel is arranged in the lens group frame, the inner surface of the lens group frame is provided with a guide pillar, the outer surface of the CAM barrel is provided with a CAM groove, the guide pillar is arranged in the CAM groove and drives the CAM barrel to rotate, a driving ring is arranged in the lens group frame, a driving foot is arranged on the driving ring, the CAM barrel is provided with a notch, and the driving foot is arranged in the notch. Two blade columns are arranged on the lens group frame, blades are sleeved on the two blade columns correspondingly and provided with hooks, two blade hooks and one returning hook are arranged on the driving ring, the two blade hooks are correspondingly connected with the hooks of the two blades through two blade tension springs and drive the blades to rotate, and the returning hook is connected with the lens group frame through a returning tension spring. The blade opening and closing device aims at overcoming the shortcomings in the prior art, is simple in structure, durable and low in cost, and enables the blades to be stably opened and closed.
Description
[technical field]
The present invention relates to the optics industry, refer more particularly to digital camera, the application of camera lens system specifically relates to and realizes the steady closing device of blade.
[background technology]
Because the blade closing device of existing optical lens generally is complicated structure, cost is high, is unfavorable for market competition.
[summary of the invention]
The purpose of this invention is to provide a kind of simple in structure, durable, steady closing device of realization blade that cost is low.
For above-mentioned purpose, the present invention by the following technical solutions:
A kind of blade closing device, it is characterized in that comprising lens group frame 1, in lens group frame 1, be provided with CAM cylinder 2, lens group frame 1 inside surface is provided with guide pillar 11, is provided with CAM groove 21 at CAM cylinder 2 outside surfaces, and guide pillar 11 places CAM groove 21 and drives CAM cylinder 2 and rotates, in lens group frame 1, be provided with driving ring 3, be provided with driving pin 31 at driving ring 3, be provided with breach 22 at CAM cylinder 2, drive pin 31 and place breach 22; Be provided with two vane posts 12 at lens group frame 1, corresponding cover has blade 4 on two vane posts 12, be provided with hook 41 at blade 4, be provided with 32 and return hooks 33 of two blade hooks at driving ring 3, two blades hook 32 is connected with the hook 41 of two blades and driven vane 4 is rotated by two blade extension springs are corresponding, return link up with 33 with lens group frame 1 between be connected by reset tension spring.
Aforesaid a kind of blade closing device is characterized in that being provided with the first back-off 15 at lens group frame 1, and driving ring 3 is pressed into the first back-off 15 and limits driving ring 3 and breaks away from lens group frame 1.
Aforesaid a kind of blade closing device is characterized in that the limited post 14 that is provided with limit blade 4 in-positions and stops operating in lens group frame 1.
Aforesaid a kind of blade closing device is characterized in that being provided with the dust cap 5 that places above the driving ring 3 in lens group frame 1, be provided with the second back-off 16 at lens group frame 1, and dust cap 5 is pressed into the second back-off 16 and limits dust cap 5 and breaks away from lens group frames 1.
Beneficial effect of the present invention has:
The present invention adopts a driving ring, and driving ring drive to be rotated by the CAM cylinder, and blade is driven by driving ring and rotates, thereby realizes opening or closing of blade, and is simple and practical, and cost is low, is beneficial to market competition.
[description of drawings]
Fig. 1 is stereographic map of the present invention.
Fig. 2 is the stereographic map of blade open mode of the present invention.
Fig. 3 is stereographic map of the present invention.
Fig. 4 is the stereographic map of blade closed condition of the present invention.
Fig. 5 is the stereographic map of driving ring.
Fig. 6 is the stereographic map of CAM cylinder.
Fig. 7 is the stereographic map of blade.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
As shown in the figure, a kind of blade closing device comprises lens group frame 1, is provided with CAM cylinder 2 in lens group frame 1, and CAM cylinder 2 namely is cam canister.Lens group frame 1 inside surface is provided with guide pillar 11, is provided with CAM groove 21 at CAM cylinder 2 outside surfaces, and guide pillar 11 places CAM groove 21 and drives CAM cylinder 2 and rotates, and also drives CAM cylinder 2 when lens group frame 1 rotates like this and rotates and upward forward and backward movement.
In lens group frame 1, be provided with driving ring 3, be provided with at driving ring 3 and drive pin 31, be provided with breach 22 at CAM cylinder 2, drive pin 31 and place breach 22, also driving driving ring 3 when CAM cylinder 2 rotates like this and rotating.Be provided with two vane posts 12 at lens group frame 1, corresponding cover has blade 4 on two vane posts 12, and blade 4 can rotate around vane posts 12.Be provided with hook 41 at blade 4, be provided with 32 and return hooks 33 of two blade hooks at driving ring 3.Two blade hooks 32 are by two corresponding being connected with the hook 41 of two blades and driven vane 4 rotations of blade extension spring (not shown).Be connected by the reset tension spring (not shown) between return hook 33 and the lens group frame 1.
As the optimal way of present embodiment, be provided with the first back-off 15 at lens group frame 1, driving ring 3 is pressed into the first back-off 15 and limits driving ring 3 and breaks away from lens group frame 1.
As the optimal way of present embodiment, the limited post 14 that in lens group frame 1, is provided with limit blade 4 in-positions and stops operating.
As the optimal way of present embodiment, in lens group frame 1, be provided with the dust cap 5 that places above the driving ring 3, be provided with the second back-off 16 at lens group frame 1, dust cap 5 is pressed into the second back-off 16 and limits dust cap 5 and breaks away from lens group frames 1.
Mechanical transmission course of the present invention is as follows: 3 guide pillars 11 that install on 3 CAM grooves, the 21 aligning lens group frames 1 that at first CAM cylinder 2 arranges, when slowly rotation direction screws in the bottom, the breach 22 that arranges on the CAM cylinder 2 just and the driving pin 31 that arranges on the driving ring match, when CAM cylinder 2 rotates, drive the rotation of driving ring 3, because driving ring is connected with the reset tension spring (not shown) that lens group frame 1 arranges, play the effect that resets, the rotation of driving ring has driven the Plane Rotation motion of two blades centered by vane posts 12, when blade forwards the limited post 14 of establishing on the lens group frame 1 just to, the lucky mirror image of two blades overlaps, at this moment the blade full closing state.
When the CAM cylinder rotated toward reverse direction, then blade resetted under the drive of driving ring gradually, arrives full-gear; blade is in the state of standard-sized sheet when camera lens is worked, when work is finished, in order to prevent dust; foreign material fall into camera lens inside, play the effect of len, at this moment the blade contract fully.
Claims (4)
1. blade closing device, it is characterized in that comprising lens group frame (1), in lens group frame (1), be provided with CAM cylinder (2), lens group frame (1) inside surface is provided with guide pillar (11), be provided with CAM groove (21) at CAM cylinder (2) outside surface, guide pillar (11) places CAM groove (21) and drives CAM cylinder (2) and rotates, in lens group frame (1), be provided with driving ring (3), be provided with driving pin (31) at driving ring (3), be provided with breach (22) at CAM cylinder (2), drive pin (31) and place breach (22); Be provided with two vane posts (12) at lens group frame (1), at the upper corresponding cover of two vane posts (12) blade (4) is arranged, be provided with hook (41) at blade (4), be provided with two blade hooks (32) and a return hook (33) at driving ring (3), two blades hooks (32) are by two corresponding being connected with the hook (41) of two blades and driven vane (4) rotations of blade extension spring, and return is linked up with between (33) and the lens group frame (1) and is connected by reset tension spring.
2. a kind of blade closing device according to claim 1 is characterized in that being provided with the first back-off (15) at lens group frame (1), and driving ring (3) is pressed into the first back-off (15) and limits driving ring (3) and breaks away from lens group frame (1).
3. a kind of blade closing device according to claim 1 and 2 is characterized in that the limited post (14) that is provided with limit blade (4) in-position and stops operating in lens group frame (1).
4. a kind of blade closing device according to claim 1 and 2, it is characterized in that in lens group frame (1), being provided with the dust cap (5) that places driving ring (3) top, be provided with the second back-off (16) at lens group frame (1), dust cap (5) is pressed into the second back-off (16) and limits dust cap (5) and breaks away from lens group frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104451650A CN102967982A (en) | 2012-11-08 | 2012-11-08 | Blade opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104451650A CN102967982A (en) | 2012-11-08 | 2012-11-08 | Blade opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102967982A true CN102967982A (en) | 2013-03-13 |
Family
ID=47798224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104451650A Pending CN102967982A (en) | 2012-11-08 | 2012-11-08 | Blade opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102967982A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777433A (en) * | 2014-02-25 | 2014-05-07 | 中山联合光电科技有限公司 | Multi-blade diaphragm adjusting device with optical filter switching function |
| CN107930876A (en) * | 2017-11-15 | 2018-04-20 | 费先艳 | Be open the afforestation Irrigation shower head that automatic brake closes |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0561104A (en) * | 1991-04-22 | 1993-03-12 | Copal Co Ltd | Barrier for lens barrel |
| JPH075547A (en) * | 1993-06-16 | 1995-01-10 | Canon Inc | Camera |
| CN1479158A (en) * | 2002-08-30 | 2004-03-03 | ̩����ʽ���� | Lens cover assembly of cameru |
| CN1952716A (en) * | 2005-10-20 | 2007-04-25 | 索尼株式会社 | Lens barrel |
| CN101014901A (en) * | 2004-09-09 | 2007-08-08 | 精工精密株式会社 | Lens barrier apparatus and image pickup apparatus having the same |
| CN201097453Y (en) * | 2007-06-12 | 2008-08-06 | 中兴通讯股份有限公司 | Rotary lens protection device |
| CN201285465Y (en) * | 2008-09-08 | 2009-08-05 | 中山联合光电科技有限公司 | Mechanical transmission structure for lens moving in optical focusing |
| CN101533140A (en) * | 2008-03-11 | 2009-09-16 | 佳能株式会社 | Lens barrel and imaging apparatus |
| CN101566780A (en) * | 2008-04-24 | 2009-10-28 | 佳能株式会社 | Lens barrel |
| CN101598885A (en) * | 2008-06-05 | 2009-12-09 | 亚洲光学股份有限公司 | Lens dustproof cover |
| CN201535840U (en) * | 2009-11-19 | 2010-07-28 | 亚洲光学股份有限公司 | Draw tube capable of preventing sand from entering |
| CN202916566U (en) * | 2012-11-08 | 2013-05-01 | 中山联合光电科技有限公司 | Apparatus for realizing blade stable opening and closing |
-
2012
- 2012-11-08 CN CN2012104451650A patent/CN102967982A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0561104A (en) * | 1991-04-22 | 1993-03-12 | Copal Co Ltd | Barrier for lens barrel |
| JPH075547A (en) * | 1993-06-16 | 1995-01-10 | Canon Inc | Camera |
| CN1479158A (en) * | 2002-08-30 | 2004-03-03 | ̩����ʽ���� | Lens cover assembly of cameru |
| CN101014901A (en) * | 2004-09-09 | 2007-08-08 | 精工精密株式会社 | Lens barrier apparatus and image pickup apparatus having the same |
| CN1952716A (en) * | 2005-10-20 | 2007-04-25 | 索尼株式会社 | Lens barrel |
| CN201097453Y (en) * | 2007-06-12 | 2008-08-06 | 中兴通讯股份有限公司 | Rotary lens protection device |
| CN101533140A (en) * | 2008-03-11 | 2009-09-16 | 佳能株式会社 | Lens barrel and imaging apparatus |
| CN101566780A (en) * | 2008-04-24 | 2009-10-28 | 佳能株式会社 | Lens barrel |
| CN101598885A (en) * | 2008-06-05 | 2009-12-09 | 亚洲光学股份有限公司 | Lens dustproof cover |
| CN201285465Y (en) * | 2008-09-08 | 2009-08-05 | 中山联合光电科技有限公司 | Mechanical transmission structure for lens moving in optical focusing |
| CN201535840U (en) * | 2009-11-19 | 2010-07-28 | 亚洲光学股份有限公司 | Draw tube capable of preventing sand from entering |
| CN202916566U (en) * | 2012-11-08 | 2013-05-01 | 中山联合光电科技有限公司 | Apparatus for realizing blade stable opening and closing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777433A (en) * | 2014-02-25 | 2014-05-07 | 中山联合光电科技有限公司 | Multi-blade diaphragm adjusting device with optical filter switching function |
| CN103777433B (en) * | 2014-02-25 | 2017-02-01 | 中山联合光电科技有限公司 | Multi-blade diaphragm adjusting device with optical filter switching function |
| CN107930876A (en) * | 2017-11-15 | 2018-04-20 | 费先艳 | Be open the afforestation Irrigation shower head that automatic brake closes |
| CN107930876B (en) * | 2017-11-15 | 2019-01-29 | 奉节县华东建筑工程有限责任公司 | The afforestation Irrigation shower head that the automatic brake that is open closes |
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| PB01 | Publication | ||
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Application publication date: 20130313 |