CN202472190U - Microminiature aperture apparatus - Google Patents
Microminiature aperture apparatus Download PDFInfo
- Publication number
- CN202472190U CN202472190U CN2012200348891U CN201220034889U CN202472190U CN 202472190 U CN202472190 U CN 202472190U CN 2012200348891 U CN2012200348891 U CN 2012200348891U CN 201220034889 U CN201220034889 U CN 201220034889U CN 202472190 U CN202472190 U CN 202472190U
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- CN
- China
- Prior art keywords
- shutter
- shutter portion
- pedestal
- permanent magnet
- cam hole
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a microminiature aperture apparatus, belonging to photographic equipment. A cover plate is buckled with a base, a driving portion is arranged on the base, a Hall sensor is in fixed connection with the base, and a first shutter portion and a second shutter portion are in fixed connection with the base by pins. The apparatus is advantaged by the novel structure where the first and the second shutter portions each has a pair of shutters capable of moving in a folding way by overlap and expansion so that the width of each shutter can be narrowed and the dimension of the whole aperture becomes smaller.
Description
Technical field
The utility model belongs to photographic equipment, refers in particular to a kind of iris apparatus.
Background technology
Development along with digital technology; Combine the product of photographing module to be pushed out more and more on the small type mobile devices such as mobile communication terminal; Monitoring photographing device is not in order to expose or in order minimizing the space to be set simultaneously, and small-sized or subminiature camera module is used more and more.
The microminiature camera module uses mechanical shutter devices in order to guarantee high-res, particularly along with the consumer to mobile phone or keep watch on photography resolution require increasingly highly, it is essential that the employing that can realize the mechanical shutter of high image quality photography has become.
Correspondingly; For compact mobile device or small-sized microminiature monitoring photographing device; It is essential that the subminiaturization of camera module has also become; And then be applicable to camera module shutter device size reduce also become more and more important, but in the past the iris apparatus that is used for this microminiature camera module all has than how many bigger single shutters of light hole or a pair of shutter of corresponding configuration.The situation of single shutter, shutter need be to a sideway swivel of light hole when light hole was opened, and at least will have the space that be equivalent to shutter area on the pedestal this moment, so just dwindling of base size is restricted.Two blades overlapped the corresponding size of area when the situation of a pair of shutter will guarantee closure certainly, and therefore the space that blade left rotation and right rotation motion back stops in the time of also will guaranteeing to open is come compared with top single shutter structure, and base size does not have big difference.Because the size of pedestal receives the restriction of blade size, technology in the past can't be applicable in the subminiaturized day by day mobile device.
Summary of the invention
The utility model provides a kind of microminiature iris apparatus, to solve the problem that existing iris apparatus can't be suitable for the microminiature photographic equipment.
The technical scheme of the utility model is: the utility model is made up of pedestal, cover plate, drive division, Hall element, the first shutter portion, the second shutter portion; Cover plate and pedestal snapping; Driving part is on pedestal; Hall element is fixedly connected with pedestal, and the first shutter portion, the second shutter portion are fixedly connected with pedestal through bearing pin; Pedestal is made up of light hole, zone of action, driving space three parts; Drive division is made up of electromagnet, permanent magnet, travelling arm, cam follower, and electromagnet is fixedly connected with pedestal, and permanent magnet is positioned at the Hall element below; And be fixedly connected with pedestal; Travelling arm and permanent magnet are rotationally connected, and cam follower is fixedly connected with travelling arm, and electromagnet is made up of magnetic core, coil; Coil and magnetic core solderless wrapped connection, permanent magnet two ends have raising axle, lower convexity axle; The first shutter portion comprises, second shutter of first shutter of the first shutter portion, the first shutter portion, the first shutter portion patchhole one, the first shutter portion patchhole two, the first shutter portion cam hole one, the first shutter portion cam hole two; The second shutter portion comprises, second shutter of first shutter of the second shutter portion, the second shutter portion, the second shutter portion patchhole one, the second shutter portion patchhole two, the second shutter portion cam hole one, the second shutter portion cam hole two; The cam follower and the first shutter portion cam hole one, the first shutter portion cam hole two, the second shutter portion cam hole one, the second shutter portion cam hole two are pegged graft.
The advantage of the utility model is: novel structure; First and second shutter portion possesses a pair of shutter with the folding mode motion of can be overlapping and launching respectively because be; Thereby can make the narrowed width of each shutter, and then the size of overall optical circle is dwindled more.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the utility model drive division;
Fig. 3 is that the A of Fig. 2 is to synoptic diagram;
Fig. 4 is the structural representation of first shutter of the utility model first shutter portion;
Fig. 5 is the structural representation of second shutter of the utility model first shutter portion;
Fig. 6 is the structural representation of first shutter of the utility model second shutter portion;
Fig. 7 is the structural representation of second shutter of the utility model second shutter portion;
Fig. 8 is the closed light hole view of first and second shutter portion of the utility model.
Embodiment
The utility model is made up of pedestal 1, cover plate 2, drive division 3, Hall element 4, the first shutter portion 5, the second shutter portion 6; Cover plate 2 and pedestal 1 snapping; Drive division 3 is positioned on the pedestal 1; Hall element 4 is fixedly connected with pedestal 1, and the first shutter portion 5, the second shutter portion 6 are fixedly connected with pedestal 1 through bearing pin; Pedestal 1 is made up of light hole 101, zone of action 102, driving space 103 3 parts; Drive division 3 is made up of electromagnet 301, permanent magnet 302, travelling arm 303, cam follower 304, and electromagnet 301 is fixedly connected with pedestal 1, and permanent magnet 302 is positioned at Hall element 4 belows; And be fixedly connected with pedestal 1; Travelling arm 303 is rotationally connected with permanent magnet 302, and cam follower 304 is fixedly connected with travelling arm 303, and electromagnet 301 is made up of magnetic core 3011, coil 3012; Coil 3012 and magnetic core 3011 solderless wrapped connections, there are raising axle 3021, lower convexity axle 3022 in permanent magnet 302 two ends; The first shutter portion 5 comprises, second shutter 502 of first shutter 501 of the first shutter portion, the first shutter portion, the first shutter portion patchhole 1, the first shutter portion patchhole 2 5021, the first shutter portion cam hole 1, the first shutter portion cam hole 2 5022; The second shutter portion 6 comprises, second shutter 602 of first shutter 601 of the second shutter portion, the second shutter portion, the second shutter portion patchhole 1, the second shutter portion patchhole 2 6021, the second shutter portion cam hole 1, the second shutter portion cam hole 2 6022; The cam follower 304 and the first shutter portion cam hole 1, the first shutter portion cam hole 2 5022, the second shutter portion cam hole 1, the second shutter portion cam hole 2 6022 are pegged graft.
Pedestal forms light hole and light hole periphery and satisfies the respective activity zone that first and second shutter portion can free folding light hole; Cover plate is to make rotatablely moving of first and second shutter portion not receive to interfere; Separable with pedestal; Drive division produces the driving force that first and second shutter portion is rotated motion, comprises electromagnet, permanent magnet and travelling arm.
Electromagnet comprises the coil that the magnetic core that is the U font and magnetic core one side are spooled line; An end and permanent magnet are contiguous in the magnetic core two ends at this moment; Permanent magnet is cylindrical; The upper and lower side center forms the upper and lower part protruding axis that can insert patchhole in the pedestal respectively, and to be benchmark in the middle of the permanent magnet, magnetize respectively and be different the magnetic pole N utmost point, the S utmost point in both sides; The anglec of rotation of the Hall element perception permanent magnet of the inwall of permanent magnet through being arranged at pedestal is controlled the degree of opening that first and second shutter portion changes light hole.
Travelling arm one side is connected in the upper ledge axle, meets at right angles with the length direction of permanent magnet, and the cam follower of side is about parallel direction with the length direction of permanent magnet in addition, and cam follower inserts four cam holes of first and second shutter portion simultaneously.At this moment, travelling arm is done clockwise with the rotation of permanent magnet and rotation counterclockwise, and cam follower causes the expansion of the one the second shutter portions and the action of contraction along with cam hole slides.The first shutter portion comprises first and second shutter, and first and second shutter is the overlapping light hole side that is positioned at when light hole is open.
On the contrary, simultaneously to the light hole side shifting, first shutter rotates to the angle bigger than second shutter to first and second shutter when light hole is closed, and promptly in the angle of cam follower rotation, first shutter is to move than the rotation of the second shutter faster speed.At this moment, also there is the overlapping field of first and second shutter of part in first and second shutter in the state of closed light hole.This is in order to prevent that first and second shutter gap from having light to pass through light hole incident.
One side of first and second shutter has can insert the patchhole that same aixs cylinder rises, the insertable cam hole of the cam follower of travelling arm.Each cam hole of first and second shutter is arranged by rectilinear direction.At this moment, cam hole has with travelling arm and reaches the possible angular range of spinning movement counterclockwise different angle mutually in the direction of the clock, because cam hole has the angle of inequality, first shutter can be to rotate than the second shutter faster speed during light hole folding.The rotational speed that is first and second shutter can be regulated according to the angle of change cam hole.The second shutter portion is disposed at the light hole opposite of the first shutter portion that is the center, with the first shutter portion, identically disposes two, i.e. first and second shutter, and mode of motion is also identical with the first shutter portion.
First and second shutter section does not possess overlapping distensible first shutter and second shutter of dwindling, compared with in the past single shutter or about the product of a shutter is respectively arranged, can form littler size, the size of microminiature iris apparatus is further reduced.At first, when adding electric current by direction of coil, the two ends of magnetic core produce different magnetic poles towards magnetic respectively, between magnetic core and permanent magnet electromagnetic force take place, and permanent magnet is along rotation counterclockwise.Along with the cam follower of travelling arm is pressed rotation counterclockwise with permanent magnet, first and second shutter rotates mobile to the left side and the right side of pedestal respectively simultaneously.At this moment, first shutter of first and second shutter portion is overlapping so that light hole open with the both sides that move to pedestal than the rotation of the second shutter faster speed., add two ends that electric current then can make magnetic core from the opposite direction of coil and produce magnetic pole opposite when open when making light hole closed from the light hole opened state.Permanent magnet electromagnetic force according to this rotates in the direction of the clock, and cam follower is rotation in the direction of the clock also.First and second shutter portion is to the rotating closed light hole in the center of light hole.At this moment, first and second shutter is the same when open with light hole, and first shutter is to move than the rotation of the second shutter faster speed.
Claims (1)
1. microminiature iris apparatus; Form by pedestal, cover plate, drive division, Hall element, the first shutter portion, the second shutter portion; It is characterized in that: cover plate and pedestal snapping; Driving part is on pedestal, and Hall element is fixedly connected with pedestal, and the first shutter portion, the second shutter portion are fixedly connected with pedestal through bearing pin; Pedestal is made up of light hole, zone of action, driving space three parts; Drive division is made up of electromagnet, permanent magnet, travelling arm, cam follower, and electromagnet is fixedly connected with pedestal, and permanent magnet is positioned at the Hall element below; And be fixedly connected with pedestal; Travelling arm and permanent magnet are rotationally connected, and cam follower is fixedly connected with travelling arm, and electromagnet is made up of magnetic core, coil; Coil and magnetic core solderless wrapped connection, permanent magnet two ends have raising axle, lower convexity axle; The first shutter portion comprises, second shutter of first shutter of the first shutter portion, the first shutter portion, the first shutter portion patchhole one, the first shutter portion patchhole two, the first shutter portion cam hole one, the first shutter portion cam hole two; The second shutter portion comprises, second shutter of first shutter of the second shutter portion, the second shutter portion, the second shutter portion patchhole one, the second shutter portion patchhole two, the second shutter portion cam hole one, the second shutter portion cam hole two; The cam follower and the first shutter portion cam hole one, the first shutter portion cam hole two, the second shutter portion cam hole one, the second shutter portion cam hole two are pegged graft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200348891U CN202472190U (en) | 2012-02-03 | 2012-02-03 | Microminiature aperture apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200348891U CN202472190U (en) | 2012-02-03 | 2012-02-03 | Microminiature aperture apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202472190U true CN202472190U (en) | 2012-10-03 |
Family
ID=46920336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200348891U Expired - Fee Related CN202472190U (en) | 2012-02-03 | 2012-02-03 | Microminiature aperture apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202472190U (en) |
-
2012
- 2012-02-03 CN CN2012200348891U patent/CN202472190U/en not_active Expired - Fee Related
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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: 20121003 Termination date: 20160203 |