CN202995221U - Dual filter switching device and shooting system - Google Patents
Dual filter switching device and shooting system Download PDFInfo
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- CN202995221U CN202995221U CN 201320030984 CN201320030984U CN202995221U CN 202995221 U CN202995221 U CN 202995221U CN 201320030984 CN201320030984 CN 201320030984 CN 201320030984 U CN201320030984 U CN 201320030984U CN 202995221 U CN202995221 U CN 202995221U
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- permanent magnet
- switching device
- filter holder
- optical fiber
- bonnet
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Abstract
The utility model discloses a dual filter switching device. The dual filter switching device comprises a front cover and a back cover respectively with light through holes, wherein the back cover is provided with a filter holder with dual filters, the filter holder is in transmission connection with a driving module, the driving module comprises a hollow coil rack with a coil, a permanent magnet rack of a permanent magnet is arranged in the coil rack and provided with a transmission gear, the transmission gear is engaged and cooperated with one end of a swing rod in transmission connection with the back cover, and the other end of the swing rod is cooperated with a strip shaped through hole on the filter holder. By the gear transmission, the swing angel of the swing rod is relatively large, and therefore the movement distance of the filter holder is larger. Compared with the prior art, in the case of the same electromagnetic rotation angle, the length of the swing rod is shortened, thus the movement distance of the filter is larger, the size of the dual filter switching device is reduced, and the compactness of digital video equipment is facilitated when a relatively large target surface image sensing chip is used.
Description
Technical field
The utility model relates to optical filter handoff technique field, and particularly a kind of simultaneous adaptation is in a kind of pair of switching device of optical fiber and the camera system of the Digital Video of day and night or rig camera.
Background technology
Digital Video generates corresponding image by induction chip according to light and realizes digital vedio recording.Due to the light on daytime and the photochromic difference at night, in order to obtain better image effect, need to impact photochromic according to the outside adopt by the filter set of IR-cut low pass filter with full spectrum optical glass sheet structure group, can obtain image effect preferably when making the different photochromic state of day and night, and then need to realize switching between IR-cut low pass filter and full spectrum optical glass sheet by switching device shifter.
existing pair of switching device of optical fiber, for example China Patent Publication No. is CN20120019U, two switching device of optical fiber such as CN201859289U and CN201417356Y, although disclosed pair of switching device of optical fiber of these three parts of patent documentations can be realized different optical filters are switched, but during for larger induction chip area, the area of the optical filter that coordinates with this larger induction chip also needs corresponding increase, therefore by the lever transmission time, only have the angle that lever is rotated enough could will switch optical filter greatly, and then make the long-pending body of two switching device of optical fiber increase.
The utility model content
The technical matters that the utility model mainly solves is to provide a kind of pair of switching device of optical fiber and camera system, need larger space when when this pair switching device of optical fiber and camera system can be avoided adopting the lever transmission, optical filter moves same distance, reduce the volume of two switching device of optical fiber, its compact conformation.
in order to address the above problem, the utility model provides a kind of pair of switching device of optical fiber, the two switching device of optical fiber of this pair switching device of optical fiber comprise: the protecgulum and the bonnet that are provided with light hole, after be covered with the filter holder of the two optical filters of band, this filter holder and driven unit are in transmission connection, wherein driven unit comprises the coil former of the hollow that is provided with coil, be provided with the permanent magnet frame with permanent magnet in this coil former, described permanent magnet has set up driving cog, the fork one end engagement fit that this driving cog and bonnet are rotationally connected, this fork other end is bored a hole with the bar shaped on filter holder and is coordinated.
Say further, described permanent magnet frame upper and lower surface center is respectively equipped with boss, and this boss coordinates rotation with groove or perforation on hollow coil former inwall.
Say further, be positioned at coil former one side after be covered with the deflection sheet that makes the permanent magnet frame that is fixed with permanent magnet be in left or right maximum angle position.
Say further, the bottom of described boss is provided with ledge structure.
Say further, be covered with the arc-shaped limit groove that coordinates with filter holder after described, described light hole is positioned in the middle of stopper slot.
Say further, described protecgulum is or/and the inboard of bonnet is provided with the arc sliver that coordinates with filter holder upper surface or/and lower surface, and when the arc sliver was positioned at bonnet, this arc sliver was positioned at the bottom of arc-shaped limit groove.
Say further, described filter holder is provided with the optical filter fixed part of T font between two optical filters.
Say further, be respectively equipped with the buckle structure of fixed permanent magnet and fixed coil on the cavity inner wall of described permanent magnet frame and coil former.
the utility model also proposes a kind of numeral camera system, this numeral camera system comprises: be located at the digital camera head in casing and the shooting control circuit that is electrically connected to this digital camera head, be provided with two switching device of optical fiber before the photoinduction chip of this digital camera head, this pair switching device of optical fiber comprises protecgulum and the bonnet that is provided with light hole, be provided with the filter holder of the two optical filters of band on bonnet, this filter holder and driven unit are in transmission connection, wherein this driven unit comprises the hollow coil former that is provided with belt coil, be provided with the permanent magnet frame with permanent magnet in this coil former, described permanent magnet has set up driving cog, the fork one end engagement fit that this driving cog and bonnet are rotationally connected, this fork other end coordinates with bar hole on filter holder.
Say further, be positioned at coil former one side after be covered with the deflection sheet that makes the permanent magnet frame that is fixed with permanent magnet be in left or right maximum angle position.
Say further, described permanent magnet frame upper and lower surface center is respectively equipped with boss, and this boss coordinates rotation with groove or hole on hollow coil former inwall, is provided with ledge structure in the bottom of this boss.
Say further, described filter holder is provided with and is used to fix the optical filter fixed part of the T font of two optical filters between two optical filters.
Say further, the bottom of described boss is provided with ledge structure.
Say further, be covered with the arc-shaped limit groove that coordinates with filter holder after described, described light hole is positioned in the middle of stopper slot.
Say further, described protecgulum is or/and the inboard of bonnet is provided with the arc sliver that coordinates with filter holder upper surface or/and lower surface, and when the arc sliver was positioned at protecgulum, this arc sliver was positioned at the bottom of arc-shaped limit groove.
The two switching device of optical fiber of the utility model, be respectively equipped with protecgulum and the bonnet of light hole, be provided with the filter holder of the two optical filters of band on protecgulum, this filter holder and driven unit are in transmission connection, wherein this driven unit comprises the coil former of the hollow that is provided with coil, is provided with the permanent magnet frame of fixed permanent magnet in this coil former, and described permanent magnet has set up driving cog, the fork one end engagement fit that this driving cog and bonnet are rotationally connected, this fork other end coordinates with bar hole on filter holder.Due to can be so that the angle that fork swings is larger by gear drive, thereby make the displacement of filter holder larger.Compared with prior art, in the situation that the electromagnetic rotating angle is identical, can shorten the length of swing arm, reach optical filter displacement larger, reduce the volume of two switching device of optical fiber, when more being conducive to adopt larger target surface image sensing chip, digital camera equipment volume miniaturization.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do simple the introduction to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, and the accompanying drawing in describing is embodiment more of the present utility model, to those skilled in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the two switching device of optical fiber example structure decomposing schematic representations of the utility model;
Fig. 2 is B part-structure enlarged diagram in Fig. 1;
Fig. 3 is the utility model driven unit example structure decomposing schematic representation;
Fig. 4 is the driven unit front elevational schematic;
Fig. 5 is along A-A direction sectional structure schematic diagram in Fig. 3;
Fig. 6 is another example structure schematic diagram of filter holder.
Below in conjunction with embodiment, and with reference to accompanying drawing, realization, functional characteristics and the advantage of the utility model purpose is described further.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model proposes a kind of couple of switching device of optical fiber embodiment.
this pair switching device of optical fiber comprises: the protecgulum 6 and the bonnet 3 that are respectively equipped with light hole 61, be provided with the filter holder 4 of the two optical filters of band on this protecgulum 6, the filter holder 4 that is provided with two optical filters is in transmission connection with driven unit 5, wherein this driven unit 5 comprises the coil former 51 of the hollow that is provided with coil 52, be provided with the permanent magnet frame 54 with permanent magnet 53 in this coil former 51, described permanent magnet frame 54 is provided with driving cog 541, the fork 55 1 end engagement fit that this driving cog 541 and bonnet 3 are rotationally connected, these fork 55 other ends coordinate with bar hole 41 between 4 liang of optical filters of filter holder.
Specifically, described protecgulum 6 is provided with light hole 61, and be positioned at corresponding with protecgulum 6 of bonnet 3 also is provided with light hole 31, is provided with lens mount 7 on this protecgulum 6, and bonnet 3 is provided with the masking frame 1 that coordinates with induction chip.Coil 52 two ends on described driven unit 5 are connected with the adapter plate for circuit 2 with plug.This driven unit 5 comprises the coil former 51 that is provided with coil 52, be provided with cavity 511 at this coil former 51, be provided with the permanent magnet frame 54 with permanent magnet 53 in this cavity 511, this permanent magnet frame 54 is respectively equipped with boss 542 groove corresponding with coil former 51 cavity 511 inwalls or hole 513 by its upper and lower surface center and coordinates and rotate.
Be provided with driving cog 541 on this permanent magnet frame 54, this driving cog 541 is by being located at gear 551 engaged transmission of the fork 55 that coordinates with rotating shaft 32 on bonnet 3, be that fork 55 is rotatably assorted by rotating shaft 32 and bonnet 3, this fork 55 is provided with the gear 551 that coordinates with driving cog 541.These fork 55 other ends coordinate with bar hole 41 between 4 liang of optical filters of filter holder.Be provided with the deflection sheet 8 that makes the permanent magnet frame 54 that is fixed with permanent magnet 53 be in left or right maximum angle position at the bonnet 3 that is positioned at coil former 51 1 sides.Two pickup grooves 33 on this deflection sheet 8 and bonnet 3 are fixed.Described deflection sheet 8 can adopt the material that produces magnetic force between other energy such as iron, nickel and alloy thereof and permanent magnet.
During work, due to the magneticaction between deflection sheet 8 and permanent magnet 53, make permanent magnet frame 54 be in all the time left and right sides maximum angular position in the cold situation of coil not, namely permanent magnet frame 54 can not be positioned at angle freely.Described coil 52 when electric, due to the electromagnetic field that coil 52 produces, its with the effect of permanent magnet 53 under rotate to another direction, and remain on another direction maximum angle position under deflection sheet 8 acts on.With the fork 55 of these permanent magnet frame 54 engaged transmission, filter holder 4 is moved to corresponding direction.Owing to the permanent magnet frame can being turned an angle by gear drive, the angle that makes fork 55 swing is larger, thereby makes the displacement of filter holder larger.Compared with prior art, in the situation that rotational angle is identical, shorten the length of swing arm, reach optical filter displacement larger, need larger space when in the time of can avoiding adopting the lever transmission, optical filter moves same distance, reduce the volume of two switching device of optical fiber, the little property of digital camera equipment volume when more being conducive to adopt larger target surface image sensing chip.Simultaneously due to deflection sheet 8 and permanent magnet 53 effect before, can also remain on the relevant position maximum angle after coil 52 power down, therefore only need to provide a pulse electrical signal make permanent magnet 53 by and deflection sheet 8 between equilibrium of forces point just can keep corresponding position afterwards, avoid adopting the coil electricity state to keep the steady state (SS) of filter holder position, reduce electric energy loss and heating.When needs switch to previous state with filter holder 4, can be by inputting opposite pulse current to coil, antiposition under the effect between electromagnetic force and permanent magnet realizes that two optical filters freely switch.
In the present embodiment, described permanent magnet comprises permanent magnet.Four fasteners 42 that are used for fixing two optical filters are arranged on described filter holder 4, and after avoiding adopting glue fixing, when two switching device of optical fiber are used for outdoor environment, the glue volatilization exerts an influence to the image effect that induction chip generates.Be provided with ledge structure 544 in the bottom of boss 542, as shown in Figure 5, this ledge structure 544 can reduce and the middle two sides contact area in opposite directions of coil former 51, reach the minimized friction coefficient, and then make and filter holder 4 and permanent magnet frame 51 between maintain suitable oscillatory forces, avoid between them friction force excessive, the action of impact permanent magnet frame 51 when pulse current.Because the resistance between permanent magnet frame 54 and coil former 51 is less, can just can drives filter holder 4 with less pulse current and switch, and then can reduce the pulse current of two switching device of optical fiber work simultaneously.Do not need simultaneously that to keep filter holder 4 positions relatively fixing by making coil be in "on" position yet.
For better fixing described permanent magnet 53 and coil 52, be respectively equipped with buckle structure 545 and buckle structure 512 on the cavity inner wall of permanent magnet frame 54 and coil former, wherein buckle structure 545 and buckle structure 512 are the inclined-plane near lateral surface.Position at described bonnet 3 upper fixed line circle framves 5 is provided with coil former clip 34.
Described filter holder 4 is provided with the optical filter fixed part 43 that is the T font between two optical filters, as shown in Figure 6, this fixed part 43 can better be fixed two optical filters, after avoiding adopting glue fixing, induction chip synthetic image effect is exerted an influence.
Described bonnet 3 is provided with the arc-shaped limit groove 30 that coordinates with filter holder 4, described light hole 31 is positioned in the middle of stopper slot 30, this arc-shaped limit groove 30 can better make filter holder 4 move, and these stopper slot 30 shapes are identical with the arcuate movement track of filter holder 4, can avoid filter holder 4 to rock.The length of this arc-shaped limit groove 30 is 1.5 times of the length of filter holder 4, in the time of can satisfying two conversions between optical filter, the volume of device is minimized.
Or/and the inboard of bonnet 3 is provided with the arc sliver 35 that coordinates with filter holder 4 upper surfaces or/and lower surface, when arc sliver 35 was positioned at protecgulum, this arc sliver 35 was positioned at the bottom of arc-shaped limit groove 30 at described protecgulum 6.The quantity that is positioned at the arc sliver 35 of any lid is preferably two, coordinates with two frames up and down of filter holder 4 respectively.This arc sliver 35 can be avoided filter holder 4 with protecgulum or/and the bonnet large tracts of land contacts, the resistance when reducing filter holder 4 and moving, and then reduce pulse current when driving.
The described pair of switching device of optical fiber also comprises the light Acquisition Circuit (accompanying drawing does not indicate) that gathers light intensity or illuminance and according to the control switching circuit (accompanying drawing does not indicate) of light intensity or illuminance output pulse current, this control switching circuit pulse current output terminal is connected with coil.
The utility model also provides a kind of numeral camera system on the basis of above-described embodiment, this numeral camera system comprises the digital camera head of being located in casing and the shooting control circuit that is electrically connected to this digital camera head, is provided with two switching device of optical fiber before the light sensing chip of this digital camera head.This pair switching device of optical fiber comprises: the protecgulum and the bonnet that are respectively equipped with light hole, be provided with the filter holder of the two optical filters of band on this bonnet, this filter holder and driven unit are in transmission connection, wherein this driven unit comprises the coil former of the hollow of belt coil, be provided with the permanent magnet frame with permanent magnet in this coil former, described permanent magnet has set up driving cog, this driving cog and bonnet rotational swing rod one end engagement fit, and this fork other end coordinates with bar hole on filter holder.
The described pair of switching device of optical fiber adopts above-described embodiment, as Fig. 1-shown in Figure 6.The technique effect of its principle of work, process and the generation of described pair of switching device of optical fiber is same as the previously described embodiments, repeats no more.
Because this adopts the numeral camera system of the two switching device of optical fiber of above-described embodiment, when this pair switching device of optical fiber adopts target area of the same area, volume is little, makes the numeral camera system small volume, more compact structure.Owing to adopting pulse current to start, do not need energising to keep filter holder relatively fixing in switching position simultaneously, can reduce the power consumption of numeral camera system, reduce the advantages such as equipment heating.
The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. two switching device of optical fiber, comprise the protecgulum and the bonnet that are provided with light hole, after be covered with the filter holder of the two optical filters of band, this filter holder and driven unit are in transmission connection, wherein driven unit comprises the coil former of the hollow that is provided with coil, be provided with the permanent magnet frame with permanent magnet in this coil former, it is characterized in that:
Described permanent magnet has set up driving cog, the fork one end engagement fit that this driving cog and bonnet are rotationally connected, and this fork other end is bored a hole with the bar shaped on filter holder and is coordinated.
2. two switching device of optical fiber according to claim 1 is characterized in that:
Described permanent magnet frame upper and lower surface center is respectively equipped with boss, and the groove on this boss and hollow coil former inwall or perforation coordinate rotation.
3. described pair of switching device of optical fiber according to claim 1 and 2 is characterized in that:
Be positioned at coil former one side after be covered with the deflection sheet that makes the permanent magnet frame that is fixed with permanent magnet be in left or right maximum angle position.
4. two switching device of optical fiber according to claim 2 is characterized in that:
The bottom of described boss is provided with ledge structure.
5. two switching device of optical fiber according to claim 3 is characterized in that:
Be covered with the arc-shaped limit groove that coordinates with filter holder after described, described light hole is positioned in the middle of stopper slot.
6. two switching device of optical fiber according to claim 5 is characterized in that:
Described protecgulum is or/and the inboard of bonnet is provided with the arc sliver that coordinates with filter holder upper surface or/and lower surface, and when the arc sliver was positioned at bonnet, this arc sliver was positioned at the bottom of arc-shaped limit groove.
7. two switching device of optical fiber according to claim 3 is characterized in that:
Described filter holder is provided with the optical filter fixed part of T font between two optical filters.
8. two switching device of optical fiber according to claim 3 is characterized in that:
Be respectively equipped with the buckle structure of fixed permanent magnet and fixed coil on the cavity inner wall of described permanent magnet frame and coil former.
9. numeral camera system, comprise the digital camera head of being located in casing and the shooting control circuit that is electrically connected to this digital camera head, be provided with two switching device of optical fiber before the photoinduction chip of this digital camera head, this pair switching device of optical fiber comprises protecgulum and the bonnet that is provided with light hole, be provided with the filter holder of the two optical filters of band on bonnet, this filter holder and driven unit are in transmission connection, wherein this driven unit comprises the hollow coil former that is provided with belt coil, be provided with the permanent magnet frame with permanent magnet in this coil former, it is characterized in that:
Described permanent magnet has set up driving cog, the fork one end engagement fit that this driving cog and bonnet are rotationally connected, and this fork other end coordinates with bar hole on filter holder.
10. numeral camera system according to claim 9 is characterized in that:
Be positioned at coil former one side after be covered with the deflection sheet that makes the permanent magnet frame that is fixed with permanent magnet be in left or right maximum angle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030984 CN202995221U (en) | 2013-01-15 | 2013-01-15 | Dual filter switching device and shooting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320030984 CN202995221U (en) | 2013-01-15 | 2013-01-15 | Dual filter switching device and shooting system |
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| Publication Number | Publication Date |
|---|---|
| CN202995221U true CN202995221U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320030984 Expired - Fee Related CN202995221U (en) | 2013-01-15 | 2013-01-15 | Dual filter switching device and shooting system |
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| CN (1) | CN202995221U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605175A (en) * | 2013-11-28 | 2014-02-26 | 温岭市现代晶体有限公司 | Light filter |
| CN104765228A (en) * | 2015-03-03 | 2015-07-08 | 信华精机有限公司 | Optical filter switching device |
| CN104880889A (en) * | 2015-04-28 | 2015-09-02 | 努比亚技术有限公司 | Camera device and mobile terminal |
| CN108873570A (en) * | 2018-06-25 | 2018-11-23 | 湖北华中光电科技有限公司 | A kind of visible light or near infrared light switching mechanism based on electromagnetic drive |
| CN113099080A (en) * | 2021-03-04 | 2021-07-09 | 新思考电机有限公司 | Iris diaphragm assembly, driving and image pickup device, and electronic apparatus |
-
2013
- 2013-01-15 CN CN 201320030984 patent/CN202995221U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605175A (en) * | 2013-11-28 | 2014-02-26 | 温岭市现代晶体有限公司 | Light filter |
| CN103605175B (en) * | 2013-11-28 | 2016-01-13 | 温岭市现代晶体有限公司 | A kind of optical filter |
| CN104765228A (en) * | 2015-03-03 | 2015-07-08 | 信华精机有限公司 | Optical filter switching device |
| CN104880889A (en) * | 2015-04-28 | 2015-09-02 | 努比亚技术有限公司 | Camera device and mobile terminal |
| CN108873570A (en) * | 2018-06-25 | 2018-11-23 | 湖北华中光电科技有限公司 | A kind of visible light or near infrared light switching mechanism based on electromagnetic drive |
| CN113099080A (en) * | 2021-03-04 | 2021-07-09 | 新思考电机有限公司 | Iris diaphragm assembly, driving and image pickup device, and electronic apparatus |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20170115 |