CN102879983A - Filter switcher and camera - Google Patents
Filter switcher and camera Download PDFInfo
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- CN102879983A CN102879983A CN2012102946324A CN201210294632A CN102879983A CN 102879983 A CN102879983 A CN 102879983A CN 2012102946324 A CN2012102946324 A CN 2012102946324A CN 201210294632 A CN201210294632 A CN 201210294632A CN 102879983 A CN102879983 A CN 102879983A
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- electromagnet
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- permanent magnet
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Abstract
The invention discloses a filter switcher and a camera. The filter switcher comprises a base with an opening cavity, a cover board fixed on the base and a framework with a filter, wherein the opening cavity is covered by the cover board to form a cavity for accommodating the framework; the framework can transversely slide in the cavity; a first electromagnet with a variable magnetic pole is arranged on the base or the cover board on one side of the cavity; a first permanent magnet is arranged at one end, which is close to the first electromagnet, of the framework; and the south poles and the north poles of the first electromagnet and the first permanent magnet are transversely arranged along the base. According to a theory that magnetic bodies with the same polarity are repulsed and magnetic bodies with different polarities are attracted, the framework is attracted or repulsed according to change of the magnetic pole of the electromagnet and can transversely slide in the cavity, so that the filter can be smoothly switched with relatively low cost and relatively simple structure.
Description
Technical field
The present invention relates to the camcorder technology field, especially relate to a kind of optical-filter switcher and video camera.
Background technology
In the security device product, the utilization of thermal camera is wider, wherein the optical filter of thermal camera comprises the first optical filter and the second optical filter, need in the work often to switch to take into account the shooting effect in daytime and evening, if optical-filter switcher has some setbacks in handoff procedure even is stuck and crash, will cause the captured image of thermal camera black at night dim, daytime is a little partially red, has a strong impact on image quality.
Optical-filter switcher in the market, normally motor adds gear ﹠ rack structure or cam structure, complicated structure, and also the total volume ratio is larger, so production efficiency is low, cost is higher.And the switching mode of this structure is that pendulum model is rocked, and is affected by gravity greatly, easily causes the deadlock phenomenon during switching.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of optical-filter switcher and video camera, is intended to realize with lower cost, simple structure the smooth and easy switching of optical filter.
To achieve these objectives, the present invention proposes a kind of optical-filter switcher, this optical-filter switcher comprises the base that is provided with atrium, be fixed in the cover plate of base and the framework of optical filter is housed, after being covered by cover plate, described atrium forms the cavity of accommodating described framework, described framework can laterally slide in this cavity, the base of described cavity one side or cover plate are provided with the first variable electromagnet of magnetic pole, described framework is provided with the first permanent magnet near an end of the first electromagnet, and the south poles of described the first electromagnet and the first permanent magnet is all laterally arranged along base.
Preferably, the base of described cavity opposite side or cover plate are provided with the second variable electromagnet of magnetic pole, described framework is provided with the second permanent magnet near an end of the second electromagnet, the south poles of described the second electromagnet and the second permanent magnet is all laterally arranged along base, and the magnetic force of described the first electromagnet and the first permanent magnet is opposite with the magnetic force of the second electromagnet and the second permanent magnet.
Preferably, the base of described atrium both sides is provided with the groove of accommodating described the first electromagnet and the second electromagnet, and the two ends of described framework are provided with the open slot of accommodating described the first permanent magnet and the second permanent magnet.
Preferably, described the first electromagnet and the second electromagnet comprise iron core, are wound in coil and the variable power supply of electric polarity of iron core along single direction, and described the first electromagnet and the second magnet spool are connected in same described power supply.
Preferably, described framework is provided with the some projections that support this framework, and described projection contacts with cavity inner wall.
Preferably, described projection is to be located at the spheroid of described frame edge.
Preferably, described cover plate is pcb board.
Preferably, described base or/and optical filter made by the PC material.
Preferably, the metal cartridge with internal thread is set on the described base.
The present invention proposes a kind of video camera simultaneously, this video camera comprises an optical-filter switcher, described optical-filter switcher comprises the base that is provided with atrium, be fixed in the cover plate and the framework that optical filter is housed of base, after being covered by cover plate, described atrium forms the cavity of accommodating described framework, described framework can laterally slide in this cavity, the base of described cavity one side or cover plate are provided with the first variable electromagnet of magnetic pole, described framework is provided with the first permanent magnet near an end of the first electromagnet, and the south poles of described the first electromagnet and the first permanent magnet is all laterally arranged along base.
A kind of optical-filter switcher provided by the present invention and video camera, utilize the magnet two like magnetic poles repel each other principle that there is a natural attraction between the sexes, the variable electromagnet of magnetic pole is set on base or cover plate, in the corresponding end of the framework that optical filter is housed permanent magnet is set, by the variation of electromagnet pole, attract or the repulsion framework, so that framework laterally slides in cavity, thereby with lower cost, simple structure, realized the smooth and easy switching of optical filter.
Description of drawings
Fig. 1 is the fractionation structural representation of optical-filter switcher preferred embodiment of the present invention;
Fig. 2 is the structural representation of base among Fig. 1;
Fig. 3 is the structural representation of Fig. 1 middle frame;
Fig. 4 is the fundamental diagram of optical-filter switcher of the present invention;
Fig. 5 is another fundamental diagram of optical-filter switcher of the present invention.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1-optical-filter switcher of the present invention one preferred embodiment shown in Figure 3.The optical-filter switcher of the present embodiment, comprise base 100, cover plate 300 and the framework 200 of optical filter is housed, described base 100 is provided with atrium 110, and atrium 110 middle parts are provided with a light hole 111, and the base 100 in atrium 110 left sides is provided with the approximately groove 120 of 1x1.5x9 of size; Described optical filter comprises the first optical filter 210 that is fixed in the left side, framework 200 left side and the second optical filter 220 that is fixed in framework 200 right sides; Described framework 200 is positioned in the atrium 110, the modes such as described cover plate 300 is connected by screw are fixed in base 100, atrium 110 forms a cavity after being covered by cover plate 300, framework 200 is placed in this cavity and can laterally also namely horizontally slips, when framework 200 slides into the left side, then the second optical filter 220 is aimed at light holes 111, and when framework 200 slides into the right, then the first optical filter 210 is aimed at light holes 111.The first variable electromagnet 121 of magnetic pole is housed in the described groove 120, described the first electromagnet 121 comprises iron core, the coil that twines around iron core along single direction and is connected in the variable power supply of polarity of coil, this first electromagnet 121 is fixed on the base 100, can certainly be fixed on the cover plate 300, described framework 200 also is that framework 200 left ends are provided with open slot 240 near an end of the first electromagnet 121, the first permanent magnet 241 wherein is housed, and the south poles of the first electromagnet 121 and the first permanent magnet 241 is arranged laterally along base 100.
Simultaneously referring to Fig. 4, Fig. 5, the first permanent magnet 241 left sides are arctic N in the present embodiment, the right is South Pole S, then when the first electromagnet 121 the right are arctic N, according to the magnet two like magnetic poles repel each other principle that there is a natural attraction between the sexes, magnetic force between the first electromagnet 121 and the first permanent magnet 241 is repulsive force, and framework 200 is pushed away toward the right, and this moment, first optical filter 210 in left side was aimed at light hole 111; When the right of the first electromagnet 121 was transformed to South Pole S, the magnetic force between the first electromagnet 121 and the first permanent magnet 241 was attractive force, and framework 200 is inhaled toward the left side, and this moment, second optical filter 220 on right side was aimed at light hole 111.Therefore, the present embodiment has been realized the smooth and easy switching of optical filter with lower cost, simple structure, and owing to being laterally to slide but not pendulum model is rocked, has reduced the impact of gravity on switch.
Further, also be provided with the approximately groove 120 of 1x1.5x9 of size on the base 100 that described atrium 110 opposite sides also are the right side, the second variable electromagnet 122 of magnetic pole is housed in this groove 120, and described the second electromagnet 122 is fixed on the base 100, can certainly be fixed on the cover plate 300; Described framework 200 also is that framework 200 right-hand members also are provided with open slot 240 near an end of the second electromagnet 122, the second permanent magnet 242 wherein is housed, the south poles of described the second electromagnet 122 and the second permanent magnet 242 is laterally arranged along base 100, and the magnetic force of described the first electromagnet 121 and the first permanent magnet 241 is always opposite with the magnetic force of the second electromagnet 122 and the second permanent magnet 242.When the magnetic force between the first electromagnet 121 and the first permanent magnet 241 is repulsive force, magnetic force between the second electromagnet 122 and the second permanent magnet 242 then is attractive force, framework 200 is subject to the repulsive force that the first electromagnet 121 is turned right on the one hand, be subject on the other hand the attractive force that the second electromagnet 122 is turned right, slide into easily the right at double reaction plus underframe 200, so that first optical filter 210 in left side is aimed at light hole 111; Otherwise, when the magnetic force between the first electromagnet 121 and the first permanent magnet 241 is attractive force, magnetic force between the second electromagnet 122 and the second permanent magnet 242 is repulsive force, framework 200 is subject to the attractive force that the first electromagnet 121 is turned left on the one hand, be subject on the other hand the repulsive force that the second electromagnet 242 is turned left, slide into easily the left side at double reaction plus underframe 200, so that second optical filter 220 on right side is aimed at light hole 111.
Further, the coil of described the first electromagnet 241 and the second electromagnet 242 is connected in the variable power supply of same electric polarity, two coil windings can be identical or opposite in the direction of iron core, and the pole orientation of the permanent magnet by adjusting framework 200 two ends guarantees that the magnetic force of the first electromagnet 241 and the first permanent magnet 121 is opposite with the magnetic force of the second electromagnet 242 and the second permanent magnet 122.Two electromagnet share a power supply, and are more convenient when magnetic pole switches, and can reduce cost.Simultaneously, two electromagnet are set after, can suitably reduce the magnetic force of single electromagnet, thereby can reduce supply voltage, further reduced cost.
Further, described framework 200 is provided with the some projections 230 that support this framework 200, described projection 230 contacts with cavity inner wall, framework 200 is suspended in the cavity and does not contact with cavity wall, reduce the surface of contact of framework 200 and cavity wall with this, and then reduce the friction force of framework 200 and cavity wall, so that framework 200 is more smooth and easy when horizontally slipping in cavity.
Further, the projection 230 of the present embodiment is for being located at 6 or 4 spheroids at described framework 200 edges, be distributed in the edge of framework both sides about in the of 200, contact for point between spheroid and the cavity inner wall, friction force is very little, further ignored the impact of gravity, so that framework 200 does not almost have the phenomenons such as crashing, stuck will not appear when switching in frictional resistance, optical filter when sliding.
Further, the metal cartridge 130 with internal thread is set on the described base 100, described metal cartridge 130 can be iron prop, copper post or stainless steel column etc., and it can or be connected in base 100 with base 100 integrated injection moldings.Lower limb has been symmetrical arranged 6 copper posts on the present embodiment and the base 100, by screw in bolt or screw in the copper post lens mount of base 100 with video camera is coupled together.The intensity of plastic parts a little less than, its internal thread can damage after bolt or screw repeatedly screw in back-out, and the intensity of copper post is higher, can avoid the damage of internal thread.
Further, the cover plate 300 of the present embodiment is printed circuit board (PCB) (Printed Circuit Board, PCB), has replaced traditional stainless steel cover plate, has both saved material cost, again can weight reduction.The first optical filter 210 in base 100 and the optical filter and the second optical filter 220 are by polycarbonate (Polycarbonate, PC) make, because PC is hard and light, and be not easy distortion below 100 ℃, thereby can effectively alleviate base 100 and optical filter weight and can prevent high temperature deformation.
The present embodiment proposes a kind of video camera simultaneously, this video camera comprises an optical-filter switcher, described optical-filter switcher comprises the base that is provided with atrium, be fixed in the cover plate and the framework that optical filter is housed of base, after being covered by cover plate, described atrium forms the cavity of accommodating described framework, described framework can laterally slide in this cavity, the base of described cavity one side or cover plate are provided with the first variable electromagnet of magnetic pole, described framework is provided with the first permanent magnet near an end of the first electromagnet, and the south poles of described the first electromagnet and the first permanent magnet is all laterally arranged along base.Optical-filter switcher described in the present embodiment is the related optical-filter switcher of above-described embodiment among the present invention, does not repeat them here.
Should be understood that; below only be the preferred embodiments of the present invention; can not therefore limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the optical-filter switcher of a video camera, comprise the base that is provided with atrium, be fixed in the cover plate of base and the framework of optical filter is housed, after being covered by cover plate, described atrium forms the cavity of accommodating described framework, described framework can laterally slide in this cavity, it is characterized in that, the base of described cavity one side or cover plate are provided with the first variable electromagnet of magnetic pole, described framework is provided with the first permanent magnet near an end of the first electromagnet, and the south poles of described the first electromagnet and the first permanent magnet is all laterally arranged along base.
2. optical-filter switcher according to claim 1, it is characterized in that, the base of described cavity opposite side or cover plate are provided with the second variable electromagnet of magnetic pole, described framework is provided with the second permanent magnet near an end of the second electromagnet, the south poles of described the second electromagnet and the second permanent magnet is all laterally arranged along base, and the magnetic force of described the first electromagnet and the first permanent magnet is opposite with the magnetic force of the second electromagnet and the second permanent magnet.
3. optical-filter switcher according to claim 2, it is characterized in that, the base of described atrium both sides is provided with the groove of accommodating described the first electromagnet and the second electromagnet, and the two ends of described framework are provided with the open slot of accommodating described the first permanent magnet and the second permanent magnet.
4. optical-filter switcher according to claim 2, it is characterized in that, described the first electromagnet and the second electromagnet comprise iron core, are wound in coil and the variable power supply of electric polarity of iron core along single direction, and described the first electromagnet and the second magnet spool are connected in same described power supply.
5. each described optical-filter switcher is characterized in that according to claim 1-4, and described framework is provided with the some projections that support this framework, and described projection contacts with cavity inner wall.
6. optical-filter switcher according to claim 5 is characterized in that, described projection is to be located at the spheroid of described frame edge.
7. optical-filter switcher according to claim 5 is characterized in that, described cover plate is pcb board.
8. optical-filter switcher according to claim 5 is characterized in that, described base or/and optical filter made by the PC material.
9. optical-filter switcher according to claim 5 is characterized in that, the metal cartridge with internal thread is set on the described base.
10. a video camera comprises an optical-filter switcher, it is characterized in that, described optical-filter switcher is such as each described optical-filter switcher of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294632.4A CN102879983B (en) | 2012-08-17 | 2012-08-17 | Optical-filter switcher and video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294632.4A CN102879983B (en) | 2012-08-17 | 2012-08-17 | Optical-filter switcher and video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102879983A true CN102879983A (en) | 2013-01-16 |
| CN102879983B CN102879983B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210294632.4A Expired - Fee Related CN102879983B (en) | 2012-08-17 | 2012-08-17 | Optical-filter switcher and video camera |
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| Country | Link |
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| CN (1) | CN102879983B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698569A (en) * | 2015-04-03 | 2015-06-10 | 浙江水晶光电科技股份有限公司 | Lens module switching device and lens module |
| CN105404078A (en) * | 2014-09-01 | 2016-03-16 | 鸿富锦精密工业（深圳）有限公司 | Camera module group |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070154208A1 (en) * | 2005-12-30 | 2007-07-05 | Ming-Tsun Chen | Light-filtering module for an image-capturing device |
| CN200944174Y (en) * | 2006-06-20 | 2007-09-05 | 何军 | Automatic switching device for vidicon filter element |
| CN201210215Y (en) * | 2008-05-23 | 2009-03-18 | 惠州市百宏微动技术工业有限公司 | Optical filter switching apparatus used for photographic lens |
| CN201449507U (en) * | 2009-05-27 | 2010-05-05 | 彭中 | Optical filter switching device |
| CN202003120U (en) * | 2011-03-18 | 2011-10-05 | 深圳波粒科技股份有限公司 | Optical filter switching device of camera and camera |
-
2012
- 2012-08-17 CN CN201210294632.4A patent/CN102879983B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070154208A1 (en) * | 2005-12-30 | 2007-07-05 | Ming-Tsun Chen | Light-filtering module for an image-capturing device |
| CN200944174Y (en) * | 2006-06-20 | 2007-09-05 | 何军 | Automatic switching device for vidicon filter element |
| CN201210215Y (en) * | 2008-05-23 | 2009-03-18 | 惠州市百宏微动技术工业有限公司 | Optical filter switching apparatus used for photographic lens |
| CN201449507U (en) * | 2009-05-27 | 2010-05-05 | 彭中 | Optical filter switching device |
| CN202003120U (en) * | 2011-03-18 | 2011-10-05 | 深圳波粒科技股份有限公司 | Optical filter switching device of camera and camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404078A (en) * | 2014-09-01 | 2016-03-16 | 鸿富锦精密工业（深圳）有限公司 | Camera module group |
| CN104698569A (en) * | 2015-04-03 | 2015-06-10 | 浙江水晶光电科技股份有限公司 | Lens module switching device and lens module |
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| Publication number | Publication date |
|---|---|
| CN102879983B (en) | 2016-01-20 |
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Granted publication date: 20160120 Termination date: 20190817 |
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