CN101833225A - Method and mechanism for switching optical filter of photographic lens - Google Patents
Method and mechanism for switching optical filter of photographic lens Download PDFInfo
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- CN101833225A CN101833225A CN 201010171771 CN201010171771A CN101833225A CN 101833225 A CN101833225 A CN 101833225A CN 201010171771 CN201010171771 CN 201010171771 CN 201010171771 A CN201010171771 A CN 201010171771A CN 101833225 A CN101833225 A CN 101833225A
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Abstract
The invention relates to the technical field of photographic lens optical filter switching, in particular to a method and a mechanism for switching the optical filter of a photographic lens with less occupied moving space. A first optical filter and a second optical filter are distributed on front and rear staggered layers respectively and distributed at left and right staggered positions respectively; and during switching, the position of the first optical filter and the position of the second optical filter are exchanged at left and right, so that the moving spaces of the first optical filter and the second optical filter are limited to the positions of the first optical filter and the second optical filter, namely, only the moving spaces of the two optical filters are needed. Compared with the traditional optical filter switching mechanism which needs the positions of the three optical filters, the product volume is greatly reduced, so that the mechanism is particularly suitable for the assembly of relatively small and mini-type cameras.
Description
Technical field
The present invention relates to optical filter of photographic lens handoff technique art, refer in particular to a kind of optical filter of photographic lens changing method and switching mechanism thereof that takies littler activity space.
Background technology
Phtographic lens is in the process of using, usually at two groups of different with needing functions of use night in the daytime optical filters.The optical filter of Shi Yonging should be the energy that can remove the light that naked eyes can't see by day, makes as ultraviolet ray, infrared ray etc., makes phtographic lens obtain more suitable light and image; But the optical filter that uses at night then should not have the function of isolating invisible light, needs to increase the penetrability of light on the contrary.Based on this, phtographic lens in simultaneously be provided with the optical filter of two different sizes usually, and be equipped with the optical filter switching mechanism in the industry, can arbitrarily switch two optical filters according to situation like this, satisfy the needs of varying environment photography.
Yet, though existing optical filter switching mechanism can provide its basic optical filter handoff functionality, really has progressive, but when using, reality but finds not reach yet on himself structure and the usability best result of use and task performance, its existing weak point is that mainly volume is huger, can not be applicable in the small-sized image pickup head and use.Particularly, in the existing filter sheet structure, having an inertia mentality of designing in the industry is that two optical filters are distributed in same one deck side by side, change the position of two optical filters then respectively by the mode of sliding or rotate, so, the size that the needed activity space volume of two optical filters is three optical filters at least, product can't further dwindle spatial volume, seriously hinders further developing of pick-up lens miniaturization.
Summary of the invention
Fundamental purpose of the present invention provides a kind of optical filter of photographic lens changing method and switching mechanism thereof, but its two optical filters right and left mutually changing position and to make the needed activity space of optical filter only be the size of two optical filters, and then dwindled small product size greatly.
For achieving the above object, the present invention adopts following technical scheme:
A kind of optical filter of photographic lens changing method, that staggers before and after this first optical filter and second optical filter be distributed in respectively is two-layer, simultaneously this first optical filter and second optical filter two positions of staggering about also being distributed in respectively; When switching, make this first optical filter and the second optical filter right and left mutually changing position.
As a kind of preferred version, the mode that described first optical filter and second optical filter system adopt rotation to wave realizes right and left mutually changing.
A kind of switching mechanism of realizing aforementioned optical filter of photographic lens changing method, include first optical filter, second optical filter and switching driving device, described first optical filter is installed on first rocker, this first rocker has one can be around first rotating shaft of its rotary oscillation, be extended with first swing arm and second swing arm from this first rotating shaft respectively to two reverse directions, this first optical filter is positioned in this second swing arm to be swung synchronously with second swing arm; Second optical filter is installed on second rocker, and this second rocker has one can be around second rotating shaft of its rotary oscillation, and this second rotating shaft is extended with one the 3rd swing arm to a side at least certainly, and this second optical filter is positioned in the 3rd swing arm to be swung synchronously with the 3rd swing arm; And it is two-layer that this first optical filter and second optical filter stagger before and after being distributed in respectively, simultaneously this first optical filter and second optical filter two positions of staggering about also being distributed in respectively; When the switching driving device startup is switched, this switching driving device acts in aforementioned first swing arm and the 3rd swing arm simultaneously, drive first rocker and second rocker simultaneously around its rotating shaft reverse rotation swing each other, make first optical filter and second optical filter switch each other.
As a kind of preferred version, described switching driving device includes coil, magnet and shifting block, this magnet is installed on the shifting block and rotates synchronously with shifting block, simultaneously the shaft axis of this shifting block and aforementioned second shaft parallel over against, this coil is arranged at by the side of magnet, when coil feeds not in-phase voltage, the different directions magnetic field that coil forms and the magnetic field interaction of magnet, it is clockwise respectively or rotate counterclockwise to drive magnet; And, being provided with a driving lever in shifting block, this driving lever is positioned on the position with respect to the shaft axis off-centre of shifting block, and this driving lever interts and articulates in the 3rd swing arm of first swing arm of aforementioned first rocker and second rocker.
As a kind of preferred version, further include lens mount, have a chamber resettling in this lens mount, lens mount is provided with and is communicated with this chamber resettling and extraneous camera lens open-work, this camera lens open-work and aforementioned first optical filter and second optical filter one of them over against; Aforementioned switching driving device is installed on the lens mount outside surface, and aforementioned first rocker and second rocker are arranged in the aforementioned chamber resettling.
As a kind of preferred version, described first rocker is that the axis of this first projection can be around first rotating shaft of its rotary oscillation as aforementioned first rocker on first projection that is set in rotationally on chamber resettling's internal face; Described second rocker is that the axis of this second projection can be around second rotating shaft of its rotary oscillation as second rocker on second projection that is set in rotationally on chamber resettling's internal face.
As a kind of preferred version, described lens mount is assembled by lens mount loam cake and the butt joint of lens mount bottom, surrounds between lens mount loam cake and lens mount bottom and forms aforementioned chamber resettling.
The present invention compared with prior art has tangible advantage and beneficial effect, particularly, and as shown from the above technical solution:
One, the activity space that takies is littler, because being the mode of location swap, the process that this first optical filter and second optical filter switch realizes, so, the space of first optical filter and the second optical filter activity is only between first optical filter and two positions of second optical filter, promptly only need the activity space of two optical filters to get final product, optical filter switching mechanism compared to three optical filter positions of needs of tradition, dwindled small product size greatly, therefore especially used applicable to less and mini camera is equipped.
Two, handoff procedure is more stablized smooth and easy, its mode that adopts rotation to wave realizes the exchange between first optical filter and second optical filter, therefore the resistance in the handoff procedure is littler, helps guaranteeing smooth and easy the carrying out of optical filter switching, and has longer serviceable life.
Three, the control of switching is more reliable and stable, the driving that its structure that is the employing coil cooperates with magnet is switched, and the direction that is more conducive to handoff procedure is like this controlled, and guarantees the stability of switching controls.
For more clearly setting forth architectural feature of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
Description of drawings
Fig. 1 is the three-dimensional exploded view of the present invention's embodiment;
Fig. 2 is the duty diagrammatic sketch of the present invention's embodiment;
Fig. 3 is another duty diagrammatic sketch of the present invention's embodiment.
The accompanying drawing identifier declaration:
10, lens mount 14, first projection
101, chamber resettling 15, second projection
11, lens mount loam cake 20, switching driving device
12, lens mount bottom 21, coil
13, camera lens open-work 22, magnet
23, shifting block 40, second rocker
231, driving lever 41, the 3rd swing arm
30, first rocker 50, first optical filter
31, first swing arm 60, second optical filter
32, second swing arm
Embodiment:
Please refer to Fig. 1 to shown in Figure 3, the concrete structure that it has demonstrated the present invention's preferred embodiment includes lens mount 10, switching driving device 20, first rocker 30, second rocker 40, first optical filter 50 and second optical filter 60.
Wherein, be moulding and the production and assembly that make things convenient for product, this lens mount 10 is to be assembled by lens mount loam cake 11 and 12 butt joints of lens mount bottom, surrounds between lens mount loam cake 11 and lens mount bottom 12 and forms a chamber resettling 101, and, be provided with camera lens open-work 13 in lens mount loam cake 11.Aforementioned switching driving device 20 is installed on the lens mount, is positioned at outside the chamber resettling 101; Aforementioned first rocker 30 and second rocker 40 are arranged in the chamber resettling 101.
This first rocker 30 is on first projection 14 that is set in rotationally on chamber resettling's 101 internal faces, and the axis of this first projection 14 can be around first rotating shaft of its rotary oscillation as first rocker 30.And this first rocker 30 is extended with first swing arm 31 and second swing arm 32 from this first rotating shaft 30 respectively to two reverse directions, this first optical filter 50 is installed in second swing arm 32 of first rocker 30, and the axially parallel of the printing opacity direction of first optical filter 50 and camera lens open-work 13.
This second rocker 40 is on second projection 15 that is set in rotationally on chamber resettling's 101 internal faces, and the axis of this second projection 15 can be around second rotating shaft of its rotary oscillation as second rocker 40.And this second rocker 40 is extended with the 3rd swing arm 41 from this second rotating shaft 15 to a direction, and this second optical filter 60 is installed in the 3rd swing arm 41 of this second rocker 40, and the axially parallel of the printing opacity direction of second optical filter 60 and camera lens open-work 13.
And that staggers before and after this second swing arm 32 and the 3rd swing arm 41 are distributed in respectively is two-layer, two positions of staggering about this second swing arm 32 simultaneously and the 3rd swing arm 41 are distributed in respectively.Make that staggers before and after this first optical filter 50 and second optical filter 60 are distributed in respectively is two-layer, two positions of staggering about this first optical filter 50 and second optical filter 60 also are distributed in respectively simultaneously.
This switching driving device 20 includes coil 21, magnet 22 and shifting block 23, this magnet 22 is installed on the shifting block 23 and rotates synchronously with shifting block 23, simultaneously the shaft axis of this shifting block 23 parallel with aforementioned second rotating shaft 15 over against, this coil 21 is arranged at by the side of magnet 22, when coil 21 feeds not in-phase voltage, the different directions magnetic field that coil 21 forms and the magnetic field interaction of magnet 22, it is clockwise respectively or rotate counterclockwise to drive magnet 22.
And, be provided with a driving lever 231 in shifting block 23, this driving lever 231 is positioned on the position with respect to the shaft axis off-centre of shifting block 23, this driving lever 231 stretches in the aforementioned chamber resettling, and intert and articulate in the 3rd swing arm 41 of first swing arm 31 of aforementioned first rocker 30 and second rocker 40, when driving lever 231 with the rotation of shifting block 23 during around the swing of the axis of shifting block 23, this driving lever 231 acts on and orders about first rocker 30 in first swing arm 31 to direction swing, and driving lever 231 acts on and orders about the 3rd swing arm 41 in the 3rd swing arm 41 and swing to other direction simultaneously.
Next, it is as follows to describe the principle of work of the present invention and the course of work in detail:
As shown in Figure 2, in a duty, second swing arm 32 of this first rocker 30 is positioned at leftward position, and the 3rd swing arm 41 of second rocker 40 is positioned at relative right positions.Suppose that the position system at second optical filter 60 places of this moment in the 3rd swing arm 41 faces the position of camera lens open-work 13, i.e. the real work position that can filter of optical filter.So, relative, the position at these first optical filter, 50 places is one and waits for the position.
Desire is switched when using this first optical filter 50 when using second optical filter 60, the user can start this switching driving device 20, in coil 21, feed another phase voltage, utilize the action of a magnetic field to impel magnet 22 to clockwise rotate, also can clockwise rotate with the shifting block 23 of magnet 22 synchronous coaxial rotation.
In shifting block 23 rotating process, driving lever 231 on the shifting block 23 is swing to the left just, mat and act in the 3rd swing arm 41 drives the 3rd swing arm 41 and swings to the left and make second optical filter 60 swing holding fix to the left side, this driving lever 231 acts in first swing arm 31 and to drive second swing arm 32 and swing to the right simultaneously, makes first optical filter 50 swing working position (as shown in Figure 3) to the right side thereupon.So can make first optical filter 50 and second optical filter, 60 right and left mutually changing positions, and realize the switching of optical filter.
Desire is switched when using this second optical filter 60 when using first optical filter 50, the user need start this switching driving device 20 once more, and in coil 21, feed reverse voltage, magnet 22 and shifting block 23 are rotated counterclockwise, and get final product through the reseting procedure opposite with the aforementioned course of work.
It needs to be noted: the switching driving device in the previous embodiment only is a kind of preferable embodiment that patented claim of the present invention proposes on the one hand, it not only is confined to the type of drive that the described coil of previous embodiment adds magnet, it can also adopt various known drives structure such as motor-driven, air cylinder driven or hydraulic-driven, and can realize the driving function to the optical filter switching of the present patent application equally.On the other hand, the mode of first optical filter and the second optical filter location swap also not only is confined to utilize the rotary oscillation of first rocker and second rocker to realize in the previous embodiment, it is that the present patent application is to be convenient for people to understand the better embodiment that the present invention proposes equally, relative, people also can adopt slip to exchange or other exchange frame mode is realized, do not exceed with it.
In sum, design focal point of the present invention is, main system is two-layer by what stagger before and after this first optical filter and second optical filter are distributed in respectively, this first optical filter and second optical filter two positions of staggering about also being distributed in respectively simultaneously, when the switching driving device startup was switched, this first optical filter and second optical filter can the right and left mutually changing positions.So, the space of first optical filter and the second optical filter activity is only between first optical filter and two positions of second optical filter, promptly only need the activity space of two optical filters to get final product, optical filter switching mechanism compared to tradition, dwindle small product size greatly, therefore be particularly useful for the equipped use of less and mini camera.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. optical filter of photographic lens changing method is characterized in that: that staggers before and after this first optical filter and second optical filter are distributed in respectively is two-layer, simultaneously this first optical filter and second optical filter two positions of staggering about also being distributed in respectively; When switching, make this first optical filter and the second optical filter right and left mutually changing position.
2. optical filter of photographic lens changing method according to claim 1 is characterized in that: the mode that described first optical filter and second optical filter system adopt rotation to wave realizes right and left mutually changing.
3. a realization includes first optical filter, second optical filter and switching driving device as the switching mechanism of the optical filter of photographic lens changing method as described in the claim 2, it is characterized in that:
Described first optical filter is installed on first rocker, this first rocker has one can be around first rotating shaft of its rotary oscillation, be extended with first swing arm and second swing arm from this first rotating shaft respectively to two reverse directions, this first optical filter is positioned in this second swing arm to be swung synchronously with second swing arm;
Second optical filter is installed on second rocker, and this second rocker has one can be around second rotating shaft of its rotary oscillation, and this second rotating shaft is extended with one the 3rd swing arm to a side at least certainly, and this second optical filter is positioned in the 3rd swing arm to be swung synchronously with the 3rd swing arm;
And it is two-layer that this first optical filter and second optical filter stagger before and after being distributed in respectively, simultaneously this first optical filter and second optical filter two positions of staggering about also being distributed in respectively; When the switching driving device startup is switched, this switching driving device acts in aforementioned first swing arm and the 3rd swing arm simultaneously, drive first rocker and second rocker simultaneously around its rotating shaft reverse rotation swing each other, make first optical filter and second optical filter switch each other.
4. optical filter of photographic lens switching mechanism according to claim 3, it is characterized in that: described switching driving device includes coil, magnet and shifting block, this magnet is installed on the shifting block and rotates synchronously with shifting block, simultaneously the shaft axis of this shifting block and aforementioned second shaft parallel over against, this coil is arranged at by the side of magnet, when coil feeds not in-phase voltage, the different directions magnetic field that coil forms and the magnetic field interaction of magnet, it is clockwise respectively or rotate counterclockwise to drive magnet; And, being provided with a driving lever in shifting block, this driving lever is positioned on the position with respect to the shaft axis off-centre of shifting block, and this driving lever interts and articulates in the 3rd swing arm of first swing arm of aforementioned first rocker and second rocker.
5. optical filter of photographic lens switching mechanism according to claim 4, it is characterized in that: further include lens mount, has a chamber resettling in this lens mount, lens mount is provided with and is communicated with this chamber resettling and extraneous camera lens open-work, this camera lens open-work and aforementioned first optical filter and second optical filter one of them over against; Aforementioned switching driving device is installed on the lens mount outside surface, and aforementioned first rocker and second rocker are arranged in the aforementioned chamber resettling.
6. optical filter of photographic lens switching mechanism according to claim 5, it is characterized in that: described first rocker is that the axis of this first projection can be around first rotating shaft of its rotary oscillation as aforementioned first rocker on first projection that is set in rotationally on chamber resettling's internal face; Described second rocker is that the axis of this second projection can be around second rotating shaft of its rotary oscillation as second rocker on second projection that is set in rotationally on chamber resettling's internal face.
7. optical filter of photographic lens switching mechanism according to claim 5 is characterized in that: described lens mount is assembled by lens mount loam cake and the butt joint of lens mount bottom, surrounds between lens mount loam cake and lens mount bottom and forms aforementioned chamber resettling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101717719A CN101833225B (en) | 2010-05-06 | 2010-05-06 | Method and mechanism for switching optical filter of photographic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101717719A CN101833225B (en) | 2010-05-06 | 2010-05-06 | Method and mechanism for switching optical filter of photographic lens |
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| Publication Number | Publication Date |
|---|---|
| CN101833225A true CN101833225A (en) | 2010-09-15 |
| CN101833225B CN101833225B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101717719A Expired - Fee Related CN101833225B (en) | 2010-05-06 | 2010-05-06 | Method and mechanism for switching optical filter of photographic lens |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793310A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院长春光学精密机械与物理研究所 | Monochromator multi-filter switching mechanism |
| CN111721233A (en) * | 2020-06-19 | 2020-09-29 | 广州立景创新科技有限公司 | Three-dimensional sensing device, light emitting module and control method thereof |
| CN112630981A (en) * | 2021-03-08 | 2021-04-09 | 宁波圻亿科技有限公司 | Wearable device |
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| JPH08184889A (en) * | 1994-12-28 | 1996-07-16 | Canon Inc | Image pickup device capable of switching aspect ratio |
| CN201097074Y (en) * | 2007-08-07 | 2008-08-06 | 福斯特资产有限公司 | Lens filtering slice conversion device for camera |
| CN101482686A (en) * | 2009-02-09 | 2009-07-15 | Tcl数码科技（深圳）有限责任公司 | Infrared filter automatic switchover apparatus used for digital camera |
-
2010
- 2010-05-06 CN CN2010101717719A patent/CN101833225B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184889A (en) * | 1994-12-28 | 1996-07-16 | Canon Inc | Image pickup device capable of switching aspect ratio |
| CN201097074Y (en) * | 2007-08-07 | 2008-08-06 | 福斯特资产有限公司 | Lens filtering slice conversion device for camera |
| CN101482686A (en) * | 2009-02-09 | 2009-07-15 | Tcl数码科技（深圳）有限责任公司 | Infrared filter automatic switchover apparatus used for digital camera |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793310A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院长春光学精密机械与物理研究所 | Monochromator multi-filter switching mechanism |
| CN104793310B (en) * | 2015-04-21 | 2017-06-23 | 中国科学院长春光学精密机械与物理研究所 | The many optical filter switching mechanisms of monochromator |
| CN111721233A (en) * | 2020-06-19 | 2020-09-29 | 广州立景创新科技有限公司 | Three-dimensional sensing device, light emitting module and control method thereof |
| CN111721233B (en) * | 2020-06-19 | 2022-05-31 | 广州立景创新科技有限公司 | Three-dimensional sensing device, light emitting module and control method thereof |
| CN112630981A (en) * | 2021-03-08 | 2021-04-09 | 宁波圻亿科技有限公司 | Wearable device |
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| CN101833225B (en) | 2012-06-27 |
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