CN203535359U - Camera optical filter switching device - Google Patents
Camera optical filter switching device Download PDFInfo
- Publication number
- CN203535359U CN203535359U CN201320531923.0U CN201320531923U CN203535359U CN 203535359 U CN203535359 U CN 203535359U CN 201320531923 U CN201320531923 U CN 201320531923U CN 203535359 U CN203535359 U CN 203535359U
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- gear
- slide plate
- filter
- optical filter
- video camera
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Abstract
The utility model discloses a camera optical filter switching device. The camera optical filter switching device comprises a pedestal. A slide sheet capable of sliding back and forth on the pedestal, a driving mechanism, and a positioning mechanism are arranged on the pedestal. The slide sheet is fixedly provided with first filtering glass and second filtering glass which are located in the same plane, and the outer periphery of the slide sheet is provided with a transmission gear along the circumferential direction. The driving mechanism comprises a motor, a worm gear, and a power-assisted gear. The transmission gear on the slide sheet is engaged with the power-assisted gear. The power-assisted gear is engaged with the worm gear. The output shaft of the motor is sleeved by the end part of the worm gear. The motor drives the worm gear to rotate, and the worm gear further drives the power-assisted gear and the transmission gear to rotate, thereby driving the first filtering glass and the second filtering glass on the slide sheet to rotate. The positioning mechanism comprises a positioning magnet which is arranged on the slide sheet. The camera optical filter switching device utilizes the positioning magnet and positioning sheets for automatic locking and positioning and ensures that the slide sheet can be located and positioned automatically when the motor is out of voltage supply.
Description
Technical field
The utility model relates to the accessory of video camera (or photographic equipment) camera lens, is specifically related to optical filter of video camera switch.
Background technology
In existing video camera (or photographic equipment), for meet the demand of taking under condition bright and clear and that light is darker simultaneously, in video camera, all an optical-filter switcher can be set, it uses two different tablet filters in condition bright and clear and that light is darker, by the switching of two tablet filters, realization all can obtain good video pictures under condition bright and clear and that light is darker, for example, this optical-filter switcher make video camera carry out daytime screening-mode and shooting at night pattern between switching.
At present, optical-filter switcher is generally placed between the camera lens and image sensor of video camera, and two tablet filters of optical-filter switcher are generally cutoff filter and white glass, is respectively used to screening-mode and shooting at night pattern on daytime.Well-lighted time, optical-filter switcher is placed in cutoff filter between camera lens and the light path of image sensor, and now video camera can be taken normal coloured image; When light is comparatively dim, optical-filter switcher switches to white glass between camera lens and image sensor, and now video camera can be taken dim image.
Optical-filter switcher of the prior art, its internal drive generally adopts the principle of electromagnetic induction, and the good coil of cloth around magnet, produces magnetic field after coil electricity, and the magnetic field of coil can guide the motion of magnet.By changing sense of current, change the swing position of magnet, and then realize the handoff functionality of filter glass.By swinging magnet, rotate about 90 degree (left and right) and then drive filter supporter rotation to be greater than the position of 60 degree (left and right), thereby realizing the switching of two tablet filters.The major defect of above-mentioned type of drive is: 1, this optical-filter switcher, coiling (big or small about 5mm*3mm*2mm) need be fixed on around the magnetite of drives structure, and make product do greatlyr, increased the volume of product; 2, its driving force is less, can not switch thick optical filter, and easy card machine, puts after all magnet and revolves that to turn 90 degrees institute's work little; 3, the corresponding structure self-lock force of this type of drive is very little, is not suitable in environment, using vibrating frequently, easily because the strenuous vibration of filter supporter causes its displacement, thereby causes position location out of true; 4, complex structure, higher to manufacture process requirement, manufacturing cost and assembly cost are higher.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of for camera lens, save that space, drives structure are simple, registration and the good optical filter of video camera switch of self-lock ability, solve deficiency of the prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of optical filter of video camera switch, comprise base, base is provided with slide plate, driving mechanism and the detent mechanism that can slidably reciprocate on base, on slide plate, be fixed with the first filter glass and the second filter glass, the first filter glass and the second filter glass are positioned at same plane, and the extension of slide plate is along being circumferentially with transmission gear; Described driving mechanism comprises motor, gear on worm and power-assisted gear, transmission gear on slide plate and the engagement of power-assisted gear, power-assisted gear and gear on worm engagement, the end of gear on worm is sheathed on the output shaft of motor, the rotation of driven by motor gear on worm, gear on worm and then drive power-assisted gear and transmission gear are rotated, thereby drive the first filter glass and the second filter glass on slide plate to rotate; Described detent mechanism comprises phase magnet, and described phase magnet is located on slide plate, prevents when slide plate strenuous vibration, drives the first filter glass and the second filter glass that are positioned on slide plate to move, and realizes automatic lockout location.
Further, this optical filter of video camera switch also comprises spacer, for stoping the slip of slide plate, slide plate is rotated in certain angle.Preferably, described spacer is provided with two, and these two spacers are located at respectively the position, the left and right sides of the upper end face of slide plate, limits respectively the left and right maximum rotation angle of slide plate.
Further, described motor is direct current generator.
Further, described the first filter glass and the parallel placement of the second filter glass.
Further, described the first filter glass and the second filter glass are respectively cutoff filter and light full impregnated eyeglass (white glass), are respectively used to screening-mode and shooting at night pattern on daytime.
Further, described power-assisted gear adopts double-layer gear, and one deck is spur gear, and another layer is spiral gear, and spur gear and spiral gear are fixedly installed togather, and gear on worm is meshed with spiral gear, and the transmission gear on slide plate is meshed with spur gear.
In the utility model, this optical filter of video camera switch is that motor drives gear on worm anyway to turn, and gear on worm drives the transmission gear on power-assisted gear and slide plate to rotate, and then the first filter glass and the second filter glass that make to be positioned on slide plate slide.
The utility model adopts said structure, compared with prior art, has the following advantages: 1, adopt direct current generator, gear on worm and main force's gear collocation to realize driving mechanism, its volume is small and exquisite; 2, outside is directly rotated to motor voltage signal, and neutral gear (gear on worm and main force's gear) is according to mechanics principle, and the resistance that reduces the slip of slide plate there will not be slide plate to get stuck; 3, use phase magnet and spacer to carry out automatic lockout location, guarantee in the situation that motor does not have voltage to supply with slide plate automatic lockout location; 4, in the utility model, cost of parts is cheap, and assembles simple, convenient, fastly, has good practicality.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of optical filter of video camera switch of the present utility model;
Fig. 2 is the reverse side schematic diagram of optical filter of video camera switch of the present utility model.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
As a specific embodiment, see figures.1.and.2, optical filter of video camera switch of the present utility model, it comprises base 100, this base 100 comprises integrated lens mount and drain pan.Base 100 is provided with slide plate 5, driving mechanism and the detent mechanism that can slidably reciprocate on base 100, on slide plate 5, be fixed with the first filter glass 6 and the second filter glass 7, the first filter glass 6 and the second filter glass 7 are positioned at same plane, and the extension of slide plate 5 (along circumferentially) is provided with transmission gear 8(arc straight-tooth); Described driving mechanism comprises motor 1, gear on worm 2 and power-assisted gear 3, transmission gear 8 on slide plate 5 and 3 engagements of power-assisted gear, power-assisted gear 3 and gear on worm 2 engagements, the end of gear on worm 2 is sheathed on the output shaft of motor 1, motor 1 drives gear on worm 2 rotations, gear on worm 2 and then drive power-assisted gear 3 and transmission gear 8 are rotated, thereby drive the first filter glass 6 and the second filter glass 7 on slide plate 5 to rotate; Described detent mechanism comprises phase magnet 9, the first spacer 10 and the second spacer 11, described phase magnet 9 is located on slide plate 5, guaranteed that slide plate 5 is when strenuous vibration, the first filter glass 6 and the second filter glass 7 on slide plate 5 and slide plate 5 can not move, and realize automatic lockout location.
Wherein, described phase magnet 9 is located on slide plate 5, and phase magnet 9 is in order to prevent that when slide plate 5 strenuous vibration, slide plate 5 and the first filter glass 6 and the second filter glass 7 that are positioned on slide plate 5 move, in addition, phase magnet 9 arranges the switching of optical filter without any impact.Meanwhile, in view of performance and the life-span of magnet, magnetic can weaken gradually under long-time use procedure and hot environment, and this is that the performance of magnet own is limit, so phase magnet 9 is located on slide plate 5 position away from motor 1.Even if after the some time, the magnetic of magnet weakens even disappearance like this, can not exert an influence to the switching of optical filter yet.
The first spacer 10 and the second spacer 11 for stoping the slip of slide plate 5, rotate slide plate 5 in certain angle.The first spacer 10 and the second spacer 11 are located at respectively the position, the left and right sides of the upper end face of slide plate 5, limit respectively the left and right maximum rotation angle of slide plate 5.
Described motor 1 is direct current generator 1, and for example adopting model is the direct current generator of 0408/4X8, and its diameter of axle is 0.7MM, and driving voltage is 1.8V-12V.
Described the first filter glass 6 and the parallel placement of the second filter glass 7.Described the first filter glass 6 and the second filter glass 7 are respectively cutoff filter and light full impregnated eyeglass (white glass), are respectively used to screening-mode and shooting at night pattern on daytime.
Described power-assisted gear 3 adopts double-layer gear, and one deck is spur gear, and another layer is spiral gear, and spur gear and spiral gear are fixedly installed togather, and gear on worm 2 is meshed with spiral gear, and the transmission gear 8 on slide plate 5 is meshed with spur gear.
Optical filter of video camera switch of the present utility model is that motor drives gear on worm anyway to turn, and gear on worm drives the transmission gear on power-assisted gear and slide plate to rotate, and then the first filter glass and the second filter glass that make to be positioned on slide plate slide.During concrete use, outside is directly to motor voltage signal rotation, and neutral gear is according to mechanics principle, and the resistance that reduces the slip of slide plate there will not be slide plate to get stuck.In the utility model, use magnet and spacer to carry out automatic lockout location and guarantee in the situation that motor does not have voltage to supply with, slide plate automatic lockout location.In the utility model, Assembly of the parts is simple, convenient, fast.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (7)
1. an optical filter of video camera switch, is characterized in that: comprise base, base is provided with slide plate, driving mechanism and the detent mechanism that can slidably reciprocate on base;
On slide plate, be fixed with the first filter glass and the second filter glass, the first filter glass and the second filter glass are positioned at same plane, and the extension of slide plate is along being circumferentially with transmission gear;
Described driving mechanism comprises motor, gear on worm and power-assisted gear, transmission gear on slide plate and the engagement of power-assisted gear, power-assisted gear and gear on worm engagement, the end of gear on worm is sheathed on the output shaft of motor, the rotation of driven by motor gear on worm, gear on worm and then drive power-assisted gear and transmission gear are rotated, thereby drive the first filter glass and the second filter glass on slide plate to rotate;
Described detent mechanism comprises phase magnet, and described phase magnet is located on slide plate.
2. optical filter of video camera switch according to claim 1, is characterized in that: this optical filter of video camera switch also comprises spacer.
3. optical filter of video camera switch according to claim 2, is characterized in that: described spacer is provided with two, and these two spacers are located at respectively the position, the left and right sides of the upper end face of slide plate.
4. optical filter of video camera switch according to claim 1, is characterized in that: described motor is direct current generator.
5. optical filter of video camera switch according to claim 1, is characterized in that: described the first filter glass and the parallel placement of the second filter glass.
6. optical filter of video camera switch according to claim 1, is characterized in that: described power-assisted gear adopts double-layer gear, and one deck is spur gear, and another layer is spiral gear, and spur gear and spiral gear are fixedly installed togather; Gear on worm is meshed with spiral gear, and the transmission gear on slide plate is meshed with spur gear.
7. optical filter of video camera switch according to claim 1, is characterized in that: described the first filter glass and the second filter glass are respectively cutoff filter and light full impregnated eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531923.0U CN203535359U (en) | 2013-08-29 | 2013-08-29 | Camera optical filter switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531923.0U CN203535359U (en) | 2013-08-29 | 2013-08-29 | Camera optical filter switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535359U true CN203535359U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531923.0U Expired - Fee Related CN203535359U (en) | 2013-08-29 | 2013-08-29 | Camera optical filter switching device |
Country Status (1)
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| CN (1) | CN203535359U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626850B (en) * | 2014-09-01 | 2018-06-11 | 鴻海精密工業股份有限公司 | Camera module |
| CN108474933A (en) * | 2016-01-11 | 2018-08-31 | 徕卡显微系统复合显微镜有限公司 | Optical instrument with the part stent that can enclose pivoting |
| CN110347004A (en) * | 2019-07-29 | 2019-10-18 | 深圳市钒德电子有限公司 | Magnetic kinetoplast changeover module, optical-filter switcher and filming apparatus |
| CN111812917A (en) * | 2019-04-10 | 2020-10-23 | 佳能株式会社 | Optical device |
| CN111929894A (en) * | 2020-07-24 | 2020-11-13 | 光朗(海南)生物科技有限责任公司 | VR glasses with adjustable |
| US11178321B2 (en) | 2019-04-10 | 2021-11-16 | Canon Kabushiki Kaisha | Optical apparatus |
-
2013
- 2013-08-29 CN CN201320531923.0U patent/CN203535359U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626850B (en) * | 2014-09-01 | 2018-06-11 | 鴻海精密工業股份有限公司 | Camera module |
| CN108474933A (en) * | 2016-01-11 | 2018-08-31 | 徕卡显微系统复合显微镜有限公司 | Optical instrument with the part stent that can enclose pivoting |
| CN111812917A (en) * | 2019-04-10 | 2020-10-23 | 佳能株式会社 | Optical device |
| US11178321B2 (en) | 2019-04-10 | 2021-11-16 | Canon Kabushiki Kaisha | Optical apparatus |
| US11196905B2 (en) | 2019-04-10 | 2021-12-07 | Canon Kabushiki Kaisha | Image-capturing apparatus for reducing a number of components of an optical element switching mechanism |
| US11503191B2 (en) | 2019-04-10 | 2022-11-15 | Canon Kabushiki Kaisha | Image-capturing apparatus with holding member for holding optical member |
| CN110347004A (en) * | 2019-07-29 | 2019-10-18 | 深圳市钒德电子有限公司 | Magnetic kinetoplast changeover module, optical-filter switcher and filming apparatus |
| CN111929894A (en) * | 2020-07-24 | 2020-11-13 | 光朗(海南)生物科技有限责任公司 | VR glasses with adjustable |
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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: 20140409 Termination date: 20140829 |
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| EXPY | Termination of patent right or utility model |