CN202929340U - Optical filter switching device for photographic lens - Google Patents
Optical filter switching device for photographic lens Download PDFInfo
- Publication number
- CN202929340U CN202929340U CN201220647255.3U CN201220647255U CN202929340U CN 202929340 U CN202929340 U CN 202929340U CN 201220647255 U CN201220647255 U CN 201220647255U CN 202929340 U CN202929340 U CN 202929340U
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- China
- Prior art keywords
- protecgulum
- permanent magnet
- slide
- circuit board
- optical
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Abstract
Provided is an optical filter switching device for a photographic lens, characterized by comprising a front cover shell, a slider, an outer cover, and a circuit board, wherein the center of the front cover shell is provided with a front cover through hole; the front cover shell is internally provided with an installation area; two side edges of the front cover shell are a first side edge and a second side edge which are respectively provided with a metal coil having certain number of turns and a metal with magnetism; the installation area is provided with the slider having two open pores; two ends of the slider are respectively provides with a permanent magnet; the outer cover is used for being combined with the front cover shell; and the circuit board is provided with a circuit board through hole corresponding to the front cover through hole of the front cover shell. When one of the metal coils is electrified, the magnetic field generated by the metal coil sucks the permanent magnet at one end. By controlling the electrification of the metal coil, the function of driving the slider can be realized. In addition, the employment of the magnetic metal makes the first side edge/second side edge and the permanent magnet unlikely to loosen due to the disappearance of the attraction when the metal coil current disappears.
Description
Technical field
The utility model is relevant for optical-filter switcher, especially a kind of optical-filter switcher of phtographic lens.
Background technology
Its purpose of optical filter is to make the light source that passes through to have specific character after ejaculation.As often having the invisible light that human eye can't be seen in normal light source; can the invisible light in incident light source be filtered out by this optical filter; and incident light source directive charge coupled cell (the Charge-coupled Device after filtering; referred to as: CCD) or complementary metal oxide semiconductor (CMOS) (Complementary Metal Oxide Semiconductor; referred to as: the CMOS) Image sensor apparatus of image sensor etc., so as to the reduction brightness of specific degrees.Can use the optical filter that only allows infrared ray to pass through, then infrared ray is shown on Image sensor apparatus again or infrared night-vision glasses.As from the foregoing, optical filter is to be used on device for image mostly, as video camera, camera.On prior art, device for image is being used an only alone tablet filter of optical filter Chang Buhui, but so as to specific switching construction, make each optical filter can respectively be subjected to the driving of specific device and conversion, therefore make device for image have different demands and application for different environmental energies.
According to the demand, someone proposes a kind of switching construction of optical filter, uses CD-ROM drive motor as the power output source that switches, and coordinates the control of electronic circuit, makes the lamellar body that carries two tablet filters slide in particular space, switch.But this kind mode Yin Mada occupies particular space, so the integral body of device is larger, gradually is not accepted for the demand of audio and video products in recent years.Do less and less as camera, relevant spare part also should dwindle gradually.
Separately someone proposes a kind of mode of using the wire coil energising to produce magnetic force, slides in particular space, switches as controlling the lamellar body that carries two tablet filters and two permanent magnets.Though this kind mode reduces the volume of device, but shortcoming need to be lasting switching on and produce magnetic force for wire coil, energising causes outside the situation of waste electric power for a long time, also can produce unnecessary heat, the electronic installation operation around these heat can affect.And during the wire coil no power, represent that namely this lamellar body is not controlled and constraint by any device, meeting arbitrarily be rocked because of power of nature (gravity), and then causes the inconvenience in use.
Therefore, need a kind of new filter plate switching construction of design to improve its problem.
The utility model content
So the purpose of this utility model is for solving the problem on above-mentioned prior art, the utility model proposes a kind of optical-filter switcher of phtographic lens, its purpose is to improve existing optical filter switching structure, use the setting of tool magnetic metal, make wire coil not need to need to continue energising as prior art when producing magnetic field and reach the effect that continues absorption.Another purpose is circuit board is hidden in the optical-filter switcher of phtographic lens of the present utility model, make the optical-filter switcher of phtographic lens of the present utility model be able to be made in modular mode, in addition also can coordinate the design of more small-sized camera or photographic goods, reach the purpose of saving the single unit system space.
For achieving the above object, the utility model proposes a kind of optical-filter switcher of phtographic lens, comprising:
Protecgulum shell, this protecgulum shell center have the protecgulum through hole, are provided with the installation region in this protecgulum shell; This protecgulum shell dual-side is first side and second side, and this first side and this second side are respectively arranged with the wire coil of the specific number of turns;
Slide is the rectangle lamellar body, is positioned at this installation region, can hard to bear driving slide to the direction of this first side or this second side; This slide has first perforate corresponding with this protecgulum through hole and the second perforate, and two minor faces arrange respectively permanent magnet, and this each permanent magnet is the wire coil on this first side or this second side respectively;
Enclosing cover is combined with this protecgulum shell, in order to this slide is packaged in the installation region of this protecgulum shell; This enclosing cover and this circuit board have the enclosing cover through hole corresponding with this protecgulum through hole of this protecgulum shell; And
Circuit board has the circuit board through hole corresponding with the protecgulum through hole of this protecgulum shell, and this circuit board is installed on this protecgulum shell mode that should the protecgulum through hole with this circuit board through hole;
By controlling this wire coil energising on this first side and this second side, the moving direction of this slide is controlled in the magnetic field that uses this wire coil to produce, this first perforate on this slide of indirectly control and the position with respect to this protecgulum through hole of this second perforate.
Preferably, the winding direction of two wire coils on this first side and this second side is in the same way, and the magnetic direction that produces after energising is identical; And arrange along the length direction of slide at the two poles of the earth of each permanent magnet, and after referring to that this each permanent magnet is arranged on this slide, each utmost point of this each permanent magnet is towards same direction.
Preferably, also comprise two tool magnetic metals, be arranged at respectively this first side and this second side of this protecgulum shell;
Make the tool magnetic metal of this permanent magnet on first side or second side that is attracted by this wire coil be combined, make after the wire coil current vanishes, can not make the attractive force between this permanent magnet and this first side or second side disappear and break away from.
Preferably, the winding direction of two wire coils on this first side and this second side is oppositely, and the magnetic direction that produces after energising is opposite; And the same utmost point of this each permanent magnet is arranged relatively along the length direction of slide, after referring to that this each permanent magnet is arranged on this slide, and the direction same extremely towards the opposite of each permanent magnet.
Preferably, after this circuit board switches on power, by the specific control circuit on this circuit board, control arbitrary this wire coil generation current sequence of flow or conduction time.
Preferably, this circuit board is adhered on this protecgulum shell, and the electrical pin on this circuit board is connected with external device (ED) or both ends of power.
Preferably, this first perforate and this second perforate are in order to install respectively the optical filter of filter specific wavelengths light.
Preferably, this wire coil periphery that is positioned on this first side and this second side also coats heat shrink films, comes off to prevent this wire coil and this first side and this second side.
Preferably, the two side near this first side and this second side in this installation region has groove, in order to the permanent magnet of two minor faces of accommodating this slide.
Therefore according to technological means of the present utility model, the effect brief description that the utility model can obtain is following listed:
1, improve existing optical filter switching structure, the setting of using the tool magnetic metal makes wire coil not need to need to continue energising as prior art when producing magnetic field and reaches the effect that continues absorption.
2, circuit board is hidden in the optical-filter switcher of phtographic lens provided by the utility model, make the optical-filter switcher of phtographic lens provided by the utility model be able to be made in modular mode, in addition also can coordinate the design of more small-sized camera or photographic goods, reach the purpose of saving the single unit system space.
Can further be understood feature and the advantage thereof of this creation by explanation hereinafter, during reading and please refer to accompanying drawing.
Description of drawings
Fig. 1 is the decomposing schematic representation of the optical-filter switcher of the utility model phtographic lens.
Fig. 2 is the combination stereogram of the optical-filter switcher of the utility model phtographic lens.
Fig. 3 is the slide active situation schematic diagram of the optical-filter switcher of the utility model phtographic lens.
Fig. 4 is another active situation schematic diagram of slide of the optical-filter switcher of the utility model phtographic lens.
Fig. 5 is another combination schematic perspective view of the optical-filter switcher of the utility model phtographic lens.
Fig. 6 is the another combination schematic perspective view of the optical-filter switcher of the utility model phtographic lens.
[main element symbol description]
10, protecgulum shell 11, protecgulum through hole
12, installation region 13, first side
14, second side 15, wire coil
16,16 ', tool magnetic metal 20, slide
21, the first perforate 22, the second perforate
23,23 ', permanent magnet 30, enclosing cover
31, enclosing cover through hole 40, circuit board
41, circuit board through hole 50, heat shrinkage film.
Embodiment
Structure with regard to the optical-filter switcher of phtographic lens provided by the utility model forms, and effect and the advantage that can produce, and coordinates graphicly, lifts preferred embodiment of the present utility model and is described in detail as follows.
Please refer to Fig. 1 and Fig. 2, the optical-filter switcher of phtographic lens of the present utility model comprises:
Wherein interior two side, installation region 12 is provided with groove, in order to the permanent magnet 23,23 ' of slide 20, makes slide 20 12 slips along the installation region.
Enclosing cover 30 with these protecgulum shell 10 combinations, makes this this slide 20 be packaged in the installation region 12 of this protecgulum shell 10; This enclosing cover 30 and this circuit board 40 have the enclosing cover through hole 31 corresponding with the protecgulum through hole 11 of this protecgulum shell 10 and circuit board through hole 41.
Wherein this circuit board 40 is connected with the two ends of each power supply, by the specific control circuit on this circuit board 40, controls 15 generation current sequence of flow or conduction times of arbitrary wire coil.Fig. 3 and Fig. 4 are shown, by controlling wire coil 15 energisings on dual-side, the moving direction of this slide 20, this first perforate 21 on this slide 20 of indirectly control and the position with respect to this protecgulum through hole 11 of the second perforate 22 are controlled in the magnetic field that uses wire coil 15 to produce; And the permanent magnet 23 that is attracted also with tool magnetic metal 16 combinations on nearest side, make after wire coil 15 current vanishes, can not make the attractive force disappearance between side and permanent magnet 23 and become flexible.
Wherein be provided with some grooves on this first side 13 and this second side 14, use so that wire coil 15 is installed on affiliated side easily.
Wherein the winding direction of two wire coils 15 on this first side 13 and this second side 14 is in the same way, and the magnetic direction that produces after energising is identical; And arrange along the length direction of slide 20 at the two poles of the earth of each permanent magnet 23,23 ', and after meaning each permanent magnet 23,23 ' and being arranged on this slide 20, each utmost point of each permanent magnet 23,23 ' is towards same direction; Perhaps
The winding direction of two wire coils 15 on this first side 13 and this second side is oppositely, and the magnetic direction that produces after energising is opposite; And the same utmost point of each permanent magnet 23,23 ' is arranged relatively along the length direction of slide 20, after meaning each permanent magnet 23,23 ' and being arranged on this slide 20, and the direction same extremely towards the opposite of each permanent magnet 23,23 '.
In the utility model, can be to continue energising the conduction time of each wire coil 15, or switch in the special time scope.Wherein each wire coil 15 selects when switching in the special time scope, when wire coil 15 no currents produce magnetic field when adsorbing on this slide 20 corresponding permanent magnet 23, namely play a role with this tool magnetic metal 16 on side, produce suction mutually with corresponding permanent magnet 23, make this slide can not cause when these genus wire coil 15 no currents produce magnetic field loosening.
As shown in Fig. 5, wherein have some holes on this enclosing cover 30, use so that the electrical pin on this circuit board 40 is able to be connected with the two ends of external device (ED) or each wire.
As shown in Fig. 6, wherein be positioned on first side 13 and second side 14 wire coil 15 peripheries and also coat heat shrink films 50, the phenomenon that comes off to reduce wire coil and affiliated side.
Wherein this first perforate 21 and this second perforate 22 are in order to install the optical filter of filter specific wavelengths light, as being to filter visible light or being to filter infrared ray.
The optical-filter switcher of phtographic lens provided by the utility model is being applied in practical application on camera or photographic goods, by the switching construction of optical filter of the present utility model, the optical-filter switcher that makes charge coupled cell in camera or photographic goods or CMOS image sensor be able to by phtographic lens provided by the utility model receives for the light source of specific wavelength.As the camera for special wavelength light demand such as infrared ray night-vision camera.
One of the purpose of this utility model is to improve existing optical filter switching structure, uses the setting of tool magnetic metal, makes wire coil not need to need to continue energising as prior art when producing magnetic field and reaches the effect that continues absorption.
Another purpose is circuit board is hidden in the optical-filter switcher of phtographic lens provided by the utility model, make the optical-filter switcher of phtographic lens provided by the utility model be able to be made in modular mode, in addition also can coordinate the design of more small-sized camera or photographic goods, reach the purpose of saving the single unit system space.
Only the above person, be only preferred embodiment of the present utility model, when not limiting the utility model practical range with this; Therefore all simple equivalences of doing according to the utility model claim and creation description change and modify, all should still belong in the scope that the utility model patent contains.
Claims (9)
1. the optical-filter switcher of a phtographic lens, is characterized in that, comprising:
Protecgulum shell, this protecgulum shell center have the protecgulum through hole, are provided with the installation region in this protecgulum shell; This protecgulum shell dual-side is first side and second side, and this first side and this second side are respectively arranged with the wire coil of the specific number of turns;
Slide is the rectangle lamellar body, is positioned at this installation region, can hard to bear driving slide to the direction of this first side or this second side; This slide has first perforate corresponding with this protecgulum through hole and the second perforate, and two minor faces arrange respectively permanent magnet, and this each permanent magnet is the wire coil on this first side or this second side respectively;
Enclosing cover is combined with this protecgulum shell, in order to this slide is packaged in the installation region of this protecgulum shell; This enclosing cover and this circuit board have the enclosing cover through hole corresponding with this protecgulum through hole of this protecgulum shell; And
Circuit board has the circuit board through hole corresponding with the protecgulum through hole of this protecgulum shell, and this circuit board is installed on this protecgulum shell mode that should the protecgulum through hole with this circuit board through hole;
By controlling this wire coil energising on this first side and this second side, the moving direction of this slide is controlled in the magnetic field that uses this wire coil to produce, this first perforate on this slide of indirectly control and the position with respect to this protecgulum through hole of this second perforate.
2. the optical-filter switcher of phtographic lens as claimed in claim 1, is characterized in that, the winding direction of two wire coils on this first side and this second side is in the same way, and the magnetic direction that produces after energising is identical; And arrange along the length direction of slide at the two poles of the earth of each permanent magnet, and after referring to that this each permanent magnet is arranged on this slide, each utmost point of this each permanent magnet is towards same direction.
3. the optical-filter switcher of phtographic lens as claimed in claim 1, is characterized in that, also comprises two tool magnetic metals, is arranged at respectively this first side and this second side of this protecgulum shell;
Make the tool magnetic metal of this permanent magnet on first side or second side that is attracted by this wire coil be combined, make after the wire coil current vanishes, can not make the attractive force between this permanent magnet and this first side or second side disappear and break away from.
4. the optical-filter switcher of phtographic lens as claimed in claim 1, is characterized in that, the winding direction of two wire coils on this first side and this second side is oppositely, and the magnetic direction that produces after energising is opposite; And the same utmost point of this each permanent magnet is arranged relatively along the length direction of slide, after referring to that this each permanent magnet is arranged on this slide, and the direction same extremely towards the opposite of each permanent magnet.
5. as the optical-filter switcher of claim 1 or 2 or 4 described phtographic lenses, it is characterized in that, after this circuit board switches on power, by the specific control circuit on this circuit board, control arbitrary this wire coil generation current sequence of flow or conduction time.
6. the optical-filter switcher of phtographic lens as claimed in claim 1, is characterized in that, this circuit board is adhered on this protecgulum shell, and the electrical pin on this circuit board is connected with external device (ED) or both ends of power.
7. the optical-filter switcher of phtographic lens as claimed in claim 1, is characterized in that, this first perforate and this second perforate are in order to install respectively the optical filter of filter specific wavelengths light.
8. the optical-filter switcher of phtographic lens as claimed in claim 1, it is characterized in that, this wire coil periphery that is positioned on this first side and this second side also coats heat shrink films, comes off to prevent this wire coil and this first side and this second side.
9. the optical-filter switcher of phtographic lens as claimed in claim 3, is characterized in that, the two side near this first side and this second side in this installation region has groove, in order to the permanent magnet of two minor faces of accommodating this slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220647255.3U CN202929340U (en) | 2012-11-30 | 2012-11-30 | Optical filter switching device for photographic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220647255.3U CN202929340U (en) | 2012-11-30 | 2012-11-30 | Optical filter switching device for photographic lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202929340U true CN202929340U (en) | 2013-05-08 |
Family
ID=48219284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220647255.3U Expired - Fee Related CN202929340U (en) | 2012-11-30 | 2012-11-30 | Optical filter switching device for photographic lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202929340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941527A (en) * | 2014-04-01 | 2014-07-23 | 嘉兴百盛光电有限公司 | Fine double-light-filter switcher |
| CN105739078A (en) * | 2014-12-08 | 2016-07-06 | 安徽昌硕光电子科技有限公司 | Optical device capable for night vision |
| CN106814524A (en) * | 2017-01-12 | 2017-06-09 | 浙江水晶光电科技股份有限公司 | A kind of high light suppresses scene day and night switching module |
-
2012
- 2012-11-30 CN CN201220647255.3U patent/CN202929340U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941527A (en) * | 2014-04-01 | 2014-07-23 | 嘉兴百盛光电有限公司 | Fine double-light-filter switcher |
| CN105739078A (en) * | 2014-12-08 | 2016-07-06 | 安徽昌硕光电子科技有限公司 | Optical device capable for night vision |
| CN106814524A (en) * | 2017-01-12 | 2017-06-09 | 浙江水晶光电科技股份有限公司 | A kind of high light suppresses scene day and night switching module |
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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 |
Granted publication date: 20130508 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |