CN202677044U - Optical filter switching device - Google Patents

Optical filter switching device Download PDF

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Publication number
CN202677044U
CN202677044U CN201220257279.8U CN201220257279U CN202677044U CN 202677044 U CN202677044 U CN 202677044U CN 201220257279 U CN201220257279 U CN 201220257279U CN 202677044 U CN202677044 U CN 202677044U
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CN
China
Prior art keywords
pulling
piece
optical
switching
magnetic energy
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
Application number
CN201220257279.8U
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Chinese (zh)
Inventor
蒋想正
宁浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN LIBO TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN LIBO TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201220257279.8U priority Critical patent/CN202677044U/en
Application granted granted Critical
Publication of CN202677044U publication Critical patent/CN202677044U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Mechanical Light Control Or Optical Switches (AREA)
  • Studio Devices (AREA)
  • Blocking Light For Cameras (AREA)

Abstract

Provided is an optical filter switching device, comprising a housing composed of a pedestal and a cover plate, switching pulling-on pieces inside the housing, and a driving mechanism for driving the switching pulling-on pieces. The optical filter switching device is characterized in that: the driving mechanism comprises a rotary rocker; a rotating shaft of the rotary rocker is installed to a permanent magnet bearing pedestal; two sides of the permanent magnet bearing pedestal and the rotary rocker are parallelly provided with two magnetic energy sheets; a magnetic conductive sheet is arranged between one of the magnetic energy sheets and the permanent magnet bearing pedestal; and the magnetic energy sheet is a slice made by multiple layers of PCB via lamination and compacting. The magnetic energy sheet is extremely thin, occupies small space, and is capable of guiding the rotary rocker to perform accurate fixed-point motion. The rotary rocker pulls the connecting portion with the rotation of the rotary rocker, thereby driving the switching pulling-on pieces and realizing switching effects over the optical filter with a simple structure.

Description

Optical-filter switcher
[technical field]
The utility model relates to the video imaging field, especially relates to a kind of optical-filter switcher.
[background technology]
In existing capture apparatus, for satisfying the demand of in the darker environment of light, taking, all can be provided with an optical-filter switcher in the capture apparatus.This optical-filter switcher can make capture apparatus carry out daytime screening-mode and the shooting at night pattern between switching.Described optical-filter switcher generally comprises the infrared light glass sheet that a visible light glass sheet and that is used for the screening-mode on daytime is used for the shooting at night pattern.Described optical-filter switcher generally comprises a cutoff filter for the screening-mode on daytime, and a white glass for the shooting at night pattern.Described optical-filter switcher generally places between the camera lens and image sensor of capture apparatus, when bright and clear, this optical-filter switcher is arranged at described cutoff filter between the light path of described camera lens and image sensor, and this moment, capture apparatus can be taken normal coloured image; When light was comparatively dim, described optical-filter switcher switched described white glass between camera lens and the image sensor, and this moment, capture apparatus can be taken dim image.
Also have the principle of the drive part employing electromagnetic induction of minority optical-filter switcher, the good coil of cloth around magnetite namely produces magnetic field behind the coil electricity, and the magnetic field of coil can guide the motion of magnetite.Change the swing position of magnetite by changing sense of current, and then realize the handoff functionality of filter glass.But this optical-filter switcher need be fixed on coiling (the about 5mm*3mm*2mm of size) around the magnetite of drives structure, makes product do greatlyr, has increased the volume of product.Have the hidden danger of interfering with customer facility, higher to manufacture process requirement, manufacturing cost is higher.
The functional step that optical-filter switcher need to be finished is: make a slice or two filter plates that filter different light rays, realize switching under different environments for use.
To the main point of optical-filter switcher optimal design be how to design one switch accurately, function-stable, volume be small and exquisite, structural reduction, make simple, driven unit with low cost.
[summary of the invention]
The utility model has proposed a kind of space, drives structure is simple, movement position accurately puts in place optical-filter switcher saved especially for above problem.
The technical solution of the utility model is: a kind of optical-filter switcher, comprise the shell that is consisted of by base and cover plate, the switching pulling-on piece in order to fixing different optical filters in the enclosure, drive the driving mechanism that switches pulling-on piece, it is characterized in that, described driving mechanism comprises a rotation rocking arm that self rotating drive is switched the pulling-on piece linear displacement, rotate permanent magnet bearing seat that the rotation axis of rocking arm is installed in at permanent magnet bearing seat and parallel two the magnetic energy sheets that are provided with in rotation rocking arm both sides, the connected mode series connection of two magnetic energy sheets or in parallel, be provided with a magnetic conduction sheet between one of them magnetic energy sheet and the permanent magnet bearing seat, described magnetic energy sheet is the thin slice that a kind of multi-sheet printed pcb board stacked compression forms.
The slide guide post is arranged on the described base, and cooperating to switch on the pulling-on piece has guide runner, and when the switching pulling-on piece was installed on the base, the cooperation of guide runner and slide guide post can allow the switching pulling-on piece slide smoothly along the direction that presets in the enclosure.
On described base and the cover plate the relative light hole in a pair of position is arranged, be furnished with in turn two different optical filters according to the moving direction that switches pulling-on piece switching on the pulling-on piece, when driving mechanism is static, have and only have an optical filter to aim at light hole.Namely rotate rocking arm when drive switching pulling-on piece to two fixed position, can guarantee the light hole on one of them optical filter alignment housings.
In described switching pulling-on piece bottom individual connecting portion with rotating the rocking arm interlock is arranged.
There is a projection on described rotation rocking arm top, has a horizontal elongated slot on the described connecting portion, and described projection is enclosed within the described elongated slot.Laterally the setting of elongated slot makes projection that certain activity space can be arranged in elongated slot, is unlikely to make optical filter stuck.
The upper end, side of described base is extended with blocks the baffle plate that switches pulling-on piece, and described baffle plate has certain fixedly slide guide effect to switching pulling-on piece.
The beneficial effects of the utility model: the magnetic energy sheet as thin as a wafer, the space that occupies is very little, can guide the rotation rocking arm to do the fixed-point motion that accurately puts in place, and rotate rocking arm self to rotate to spur connecting portion, thereby drive switching pulling-on piece has finally been realized the switching effect to optical filter, and mechanism is simple.
[description of drawings]
Fig. 1 is structural representation of the present utility model.
Wherein: 1, base; 2, cover plate; 3, switch pulling-on piece; 4, driving mechanism; 5, rotate rocking arm; 6, permanent magnet bearing seat; 7, magnetic energy sheet; 8, magnetic conduction sheet; 9, slide guide post; 10, guide runner; 11, light hole; 12, optical filter; 13, connecting portion; 14, projection; 15, elongated slot;
[embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.
The utility model proposes a kind of optical-filter switcher that two magnetic energy sheets drive the rotation rocking arm of using, passing into direction of current in the magnetic energy sheet by change makes the magnetic energy sheet produce magnetic field on two kinds of directions, the magnetic field that produces and the magnetic field of permanent magnet are repelled or are attracted, and then realize permanent magnet toward the deflection of both direction, optical filter is switched.
A kind of optical-filter switcher, comprise the shell that is consisted of by base 1 and cover plate 2, the switching pulling-on piece 3 in order to fixing different optical filters in the enclosure, drive the driving mechanism 4 that switches pulling-on piece 3, it is characterized in that, described driving mechanism 4 comprises a rotation Rocker arm 5 that self rotating drive is switched pulling-on piece 3 linear displacements, the rotation axis 5.1 that rotates Rocker arm 5 is installed on the permanent magnet bearing seat 6, permanent magnet bearing seat 6 with rotate that the Rocker arm 5 both sides are parallel to be provided with two magnetic energy sheets 7, be provided with a magnetic conduction sheet 8 between one of them magnetic energy sheet 7 and the permanent magnet bearing seat 6, described magnetic energy sheet is the thin slice that a kind of multi-layer PCB board stack pressing forms, adopting one deck pcb board one deck dense planting coil is a unit, and a plurality of elementary layers stack the thin slice that compression is made.
Described magnetic energy sheet is a kind of thin slice that is formed by multi-sheet printed pcb board stack pressing.Its advantage is that volume is little, profile rule, dependable performance, but Reusability (being convenient to reclaim the product that return), convenient working etc.The former English full name of described " magnetic energy sheet " is " Fine Pattern Coils ", is called for short " FP-Coils ". definition " magnetic energy sheet " is function and the profile of taking from it, and namely its function is to produce magnetic field energy, profile in the form of sheets, therefore
On the described base 1 slide guide post 9 is arranged, cooperating to switch on the pulling-on piece 2 has guide runner 10, and when switching pulling-on piece 3 was installed on the base 1, the cooperation of guide runner 10 and slide guide post 9 can allow switching pulling-on piece 2 slide smoothly along the direction that presets in the enclosure.
On described base 1 and the cover plate 2 the relative light hole in a pair of position 11 is arranged, the moving direction according to switching pulling-on piece 3 is furnished with two different optical filters 12 in turn on the pulling-on piece 3 switching, when driving mechanism 4 is static, there is and only have an optical filter 12 to aim at light holes 11.Namely rotate Rocker arm 5 and drive when switching 3 to two fixed positions of pulling-on piece, can guarantee the light hole 11 on one of them optical filter 12 alignment housings.
Individual connecting portion 13 with rotating the Rocker arm 5 interlock is arranged in described switching pulling-on piece 3 bottoms.This connecting portion 13 normally active link arrives the rotation Rocker arm 5.
Concrete movable connection method is as follows: there is a projection 14 on described rotation Rocker arm 5 top, has a horizontal elongated slot 15 on the described connecting portion 13, and described projection 14 is enclosed within the described elongated slot 15.Laterally the setting of elongated slot 15 makes projection 14 can certain activity space be arranged in elongated slot 15, is unlikely to make optical filter 12 stuck.
The upper end, side of described base 1 is extended with blocks the baffle plate 16 that switches pulling-on piece 3, and 16 pairs on described baffle plate switches pulling-on piece 3 certain fixedly slide guide effect.There is respectively guide sliding structure described switching pulling-on piece 3 both sides, and a side is that baffle plate 16 plays the fixedly effect of slide guide to it, and an other side is to come slide guide by slide guide post 9 and guide runner 10 structures, and keeping switching pulling-on piece can be according to the default smooth smooth sliding of direction of motion.
In not energising situation, the magnetic energy sheet does not produce magnetic field, thereby rotating Rocker arm 5 is subjected to the attraction of magnetic conduction sheet 8 to produce static force, keep motionless, when giving the energising of magnetic energy sheet, on two parallel magnetic energy sheets direct current is arranged, utilize two rear magnetic fields that produce of magnetic energy sheet energising with the magnetic field interaction of permanent magnet permanent magnet and rocking handle to be rotated, and then drive the pulling-on piece moving linearly, realize the switching of optical filter.

Claims (6)

1. optical-filter switcher, comprise the shell that is consisted of by base and cover plate, the switching pulling-on piece in order to fixing different optical filters in the enclosure, drive the driving mechanism that switches pulling-on piece, it is characterized in that, described driving mechanism comprises a rotation rocking arm that self rotating drive is switched the pulling-on piece linear displacement, rotate permanent magnet bearing seat that the rotation axis of rocking arm is installed in at permanent magnet bearing seat and parallel two the magnetic energy sheets that are provided with in rotation rocking arm both sides, the connected mode series connection of two magnetic energy sheets or in parallel, be provided with a magnetic conduction sheet between one of them magnetic energy sheet and the permanent magnet bearing seat, described magnetic energy sheet is the thin slice that a kind of multi-sheet printed pcb board stacked compression forms.
2. described optical-filter switcher according to claim 1 is characterized in that the slide guide post is arranged on the described base, and cooperating to switch on the pulling-on piece has guide runner.
3. described optical-filter switcher according to claim 2, it is characterized in that, on described base and the cover plate the relative light hole in a pair of position is arranged, the moving direction according to the switching pulling-on piece is furnished with two different optical filters in turn on the pulling-on piece switching, when driving mechanism is static, there is and only have an optical filter to aim at light hole
4. described optical-filter switcher according to claim 1 is characterized in that, the connecting portion with rotation rocking arm interlock is arranged in described switching pulling-on piece bottom.
5. described optical-filter switcher according to claim 4 is characterized in that there is a projection on described rotation rocking arm top, has a horizontal elongated slot on the described connecting portion, and described projection is enclosed within the described elongated slot.
6. described optical-filter switcher according to claim 2 is characterized in that, the upper end, side of described base is extended with blocks the baffle plate that switches pulling-on piece.
CN201220257279.8U 2012-06-01 2012-06-01 Optical filter switching device Expired - Fee Related CN202677044U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220257279.8U CN202677044U (en) 2012-06-01 2012-06-01 Optical filter switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220257279.8U CN202677044U (en) 2012-06-01 2012-06-01 Optical filter switching device

Publications (1)

Publication Number Publication Date
CN202677044U true CN202677044U (en) 2013-01-16

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CN201220257279.8U Expired - Fee Related CN202677044U (en) 2012-06-01 2012-06-01 Optical filter switching device

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102722064A (en) * 2012-06-01 2012-10-10 深圳市立博电子有限公司 Optical filter switcher
CN106405990A (en) * 2016-11-20 2017-02-15 东莞市维斗科技股份有限公司 Multilayer light filter linear motion IR-CUT switch
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102722064A (en) * 2012-06-01 2012-10-10 深圳市立博电子有限公司 Optical filter switcher
CN106405990A (en) * 2016-11-20 2017-02-15 东莞市维斗科技股份有限公司 Multilayer light filter linear motion IR-CUT switch
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

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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: 20130116

Termination date: 20160601