CN102313956A - Optical device automatic switching device and photography equipment - Google Patents
Optical device automatic switching device and photography equipment Download PDFInfo
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- CN102313956A CN102313956A CN201110269783XA CN201110269783A CN102313956A CN 102313956 A CN102313956 A CN 102313956A CN 201110269783X A CN201110269783X A CN 201110269783XA CN 201110269783 A CN201110269783 A CN 201110269783A CN 102313956 A CN102313956 A CN 102313956A
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- follower gear
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Abstract
The invention provides an optical device automatic switching device and photography equipment; the optical device automatic switching device comprises a base; a driving motor, a driven gear and a driving gear which is meshed with the driven gear are arranged on the base; the driving gear is fixed on a motor output shaft of the driving motor; at least two fixing pieces for fixing filter discs are arranged on the driven gear; and the fixing pieces are distributed on the driven gear in a circumferential direction. Because a gear structure is adopted, the invention has a compact structure; in addition, the filter discs are integrated with a reducing gear, so that the device has a small thickness; a force saving principle of a gear reducing mechanism is utilized, so that the same torque output can be realized by a smaller motor; and consequently, the equipment has a smaller size, so that the economy and the reliability of the device are greatly improved.
Description
Technical field
The present invention relates to digital photography, shooting product device field, especially relate to a kind of two or three filter disc switching device shifters and photographic equipment of band handoff functionality that is applied on type digital camera day and night or the video camera.
Background technology
The visible light that the normal eye sees is in the 320nm-760nm scope, and exceeds the part of 760nm, is known as infrared light, and general human eye can't see.This a part of light in back behind entering digital camera or the video camera inside, can disturb the colour imaging in the daytime of sensitive chip, causes consequences such as focus offset, color distortion.In colour phhotograpy in the daytime normally or shooting process; Usually need before phtographic lens, install the infrared filter disc of a slice additional; Its cutoff frequency 760nm or more than; With the infrared light part in the filtering sun or other light source, but such device has also just been lost the sensitization function to infrared light at night, thereby can't form images at the night of dark.Therefore; Digital camera or video camera with type double-purpose functional day and night shot good colour picture in order can to use by day the time can shoot respond well infrared black-and-white photograph again at night; Just need a filter disc switching device shifter; Make when infrared filter disc exists, only to allow the light of the following wavelength of 760nm to get into the color distortion of avoiding the photo on daytime, to evening then allow the infrared ray of the above wavelength of 760nm to get into to reach night vision effect preferably.
What existing infrared filter disc conversion equipment was common has two kinds: a kind of adelphotaxy through magnet and coil is realized; Like one Chinese patent application number is 200320127940.4; A kind of " the infrared filter automatic starting device of video camera " disclosed (Fig. 1); Its structure contains filter supporter, optical filter magnetic coil groups, photoresistance, optical filter balladeur train, infrared filter and optical filter; Utilize the switch of photoresistance control optical filter magnetic coil groups, thereby the balladeur train that is equiped with infrared fileter and optical filter can be moved up and down.Use the light line traffic control, can control moving of infrared filter balladeur train and optical filter automatically, reach the effect that all can make a video recording under different types of illumination condition.
Another kind is to drive through micromachine to realize; Like " a kind of infrared filter driving mechanism and the camera " of number of patent application 200720172329.1 (Fig. 2); Its design comprises drive motor, is fixed on filter support and rotating limit device on the motor output shaft; Its design is to adopt the direct current motor that rotatablely moves to drive the filter support, thereby the control filter automaticallyes switch.But the deficiency that this design exists is that the position of filter disc when motor is not worked is unfixing, and filter disc can rock before camera lens back and forth when slightly rocking, and influences the attractive in appearance of product.
The existing technical scheme complex structure takes up space bigger, is difficult to realize miniaturization Design, is not easy to be installed on portable digital video camera or the DV.In addition, the prior art scheme adopts motor direct-drive, needs motor that bigger output torque is arranged, otherwise stuck easily, this makes the miniaturization of motor that limitation arranged, and the occupy-place and the volume of tilting mechanism still dislike bigger than normal simultaneously.
Summary of the invention
Big for solving the prior art installation volume, cost is high, and moment is big; The technical matters that function is few, the present invention provides a kind of optical device automatic switching control equipment, comprises base; The driving gear that said base is provided with drive motor, follower gear and is meshed with it; Said driving gear is fixed on the motor output shaft of said drive motor, and said follower gear is provided with at least two fixtures that are used for fixing optical device, and said fixture circumferentially is distributed on the said follower gear.
Wherein, the number of teeth of said driving gear is less than the number of teeth of said follower gear.
Wherein, said fixture is the anchor ear structure.
Wherein, said follower gear also comprises optical texture, and said optical texture is circular hole or slit.
Wherein, also comprise the magnet locating device, the magnet locating device comprises magnet and at least one iron prop, and said magnet is fixed on the said base, and said iron prop is fixed on the said engaged wheel excircle.
The present invention also provides a kind of photographic equipment; Comprise filter disc, camera lens and optical device automatic switching control equipment; Said optical device automatic switching control equipment comprises base; The driving gear that said base is provided with drive motor, follower gear and is meshed with it, said driving gear are fixed on the motor output shaft of said drive motor, and said follower gear is provided with at least two fixtures that are used for fixing optical device; Said fixture circumferentially is distributed on the said follower gear; Said filter disc is fixed in the fixture of said optical device automatic switching control equipment, and said optical device automatic switching control equipment is fixedly connected with said camera lens, and said filter disc is positioned on the input path of said camera lens.
Wherein, the number of teeth of said driving gear is less than the number of teeth of said follower gear.
Wherein, also be provided with optical texture on the said follower gear, said optical texture is circular hole or slit.
Wherein, also comprise the magnet locating device, the magnet locating device comprises magnet and at least one iron prop, and said magnet is fixed on the said base, and said iron prop is fixed on the said engaged wheel excircle.
Wherein, the back side of said base is provided with mounting flange, and said base is fixed through said mounting flange and said camera lens.
The invention has the beneficial effects as follows: adopt the structure of driving gear and follower gear engaged transmission, driving gear is arranged on the drive motor on the output shaft, rotates when drive motor drives driving gear; Because follower gear is meshed with driving gear; Follower gear rotates thereupon, and the fixture that is used for fixing optical device such as filter disc circumferentially is distributed on the engaged wheel, and each fixture is in the process with the follower gear rotation; The position can substitute mutually, realizes the automatic switchover of the filter disc on the different fixing part.Driving gear is driven by micromachine, and the filter disc of a plurality of different-effects can be installed in the follower gear, the direct engaged transmission of driving gear and follower gear; Both realized the compactness of structure, filter disc and reduction gearing unite two into one, and make that the thickness of this equipment is little; Utilized the laborsaving principle of gear reduction again; Can use littler motor to realize identical moment output, thereby make the volume of equipment littler, improve economy, the reliability of device greatly.
Description of drawings
Fig. 1 is the structural drawing of infrared filter automatic starting device of a kind of video camera of prior art;
Fig. 2 is a kind of infrared filter driving mechanism of prior art and the structural drawing of camera;
Fig. 3 is the stereoscopic view of automatic switching control equipment one embodiment of the present invention;
Fig. 4 is the inside three-dimensional view of automatic switching control equipment one embodiment of the present invention;
Fig. 5 is the rear view of automatic switching control equipment of the present invention;
Fig. 6 is the inside three-dimensional view of another embodiment of automatic switching control equipment of the present invention;
Fig. 7 is the inside three-dimensional structure diagram of the another embodiment of automatic switching control equipment of the present invention.
Label declaration:
1. motor 2. driving gears 3. follower gears 4. bases 5. loam cakes 51. motor cover 7. magnet 11. motor output shafts 31. filter,primaries 32. second filter discs 33. the 3rd filter disc 41. datum axles 42. mounting flanges 43. light holes 61. iron props 62. iron props 331. small sircle holes 332. slits
Embodiment
By specifying technology contents of the present invention, structural attitude, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
Consult Fig. 3 and Fig. 4, embodiments of the invention at first provide a kind of device of realizing that many filter discs automatically switch, and comprise drive motor 1, be fixed on the driving gear 2 on the motor output shaft 11, and the follower gear 3 that is meshed with it.Inner at follower gear; Be provided with three fixtures that are used for fixing filter disc that circumferentially are uniformly distributed with, this fixture adopts the anchor ear structure, and each anchor ear structure adopts the hoop sheet of two half-circle projection shapes; Can fix the filter disc of three different performances according to actual needs respectively; In the embodiment of Fig. 4, be fixed with filter,primary 31, the second filter discs 32, the three filter discs 33 respectively in three fixtures.Driving gear 2, follower gear 3 and drive motor 1 are arranged on the base 4, and follower gear is around datum axle 41 rotations, and datum axle 41 is parts of base 4; Have light hole 43 on the base 4, before automatic switching control equipment of the present invention was installed on camera lens in use, light hole 43 was aimed at camera lens; When rotating as for light hole 43 relatively by the fixing filter disc of each fixture, each filter disc filters to the incident ray of camera lens, when follower gear rotates; Filter disc 31-33 rotates to the camera lens place successively; Its axle center and camera lens axis coinciding guaranteeing its axle center on the light path of camera lens, thereby play filter action of different nature.The central motion track of filter disc 31-33 is a circle, and its relative position is mutually 120 angles.Described driving gear 2 directly is fixed on the motor output shaft 11, in the present embodiment, the number of teeth of the number of teeth of driving gear 2 less than follower gear 3 is set, and reaching the effect of deceleration force amplifier, thereby makes the motor can be further microminiaturized.Described follower gear 3 is meshed with driving gear 2, and when motor rotated, driving gear also drove the follower gear rotation; Both velocity ratios and both all gear ratios are inversely proportional to; And the output torque of follower gear, then be the motor output torque N doubly, N is above-mentioned all gear ratios here.When the motor reverse rotation, follower gear is opposite spin thereupon also.When follower gear rotates; The filter disc 31-33 that is positioned on the driven tooth internal fixation part also turns round around the axle center of follower gear thereupon; When follower gear rotation 120 is spent; The filter disc in back replaces the position of previous filter disc, just keeps off before described camera lens, realizes the filter disc effect that it is specific.
Certainly; Switching device shifter of the present invention is not limited in and in engaged wheel, is provided with three and circumferentially is uniformly distributed with the fixture that is used for fixing filter disc; The quantity of fixture can only be two, also can in actual conditions, select for use as required for four even more; Each fixture can not be to be distributed in the follower gear yet; Can on circumferentially, be arranged at arbitrarily in the follower gear, only need make the position of each fixture guarantee that it can make the filter disc that is fixed in wherein before ad-hoc location is positioned at the input path of camera lens, can realize the effect that it filters to the incident ray of camera lens when rotating with engaged wheel.The fixing filter disc of different-effect in the different fixed part is realized diversified filter effect.In the automatic switching control equipment of the present invention in addition; The structure of follower gear also is not limited only to diagram; Grinding tooth on the follower gear can not need to cover fully whole circumference; For example can be as shown in Figure 7, grinding tooth only is distributed on the part circumference, gets final product before making needed filter disc rotate to camera lens through the rotation that motor is set in use.The profile of tooth of driving gear and follower gear also not necessarily need be set to the straight-tooth structure among the figure in addition, can also be designed to helical teeth, or even curved tooth cylindrical gear, and the optical device that only needs both engaged transmission to make to be fixed on the follower gear rotates and gets final product.
In the present embodiment; Fixing three filter discs in the automatic switching control equipment, can be by following scheme setting: filter,primary 31 be the IR-cut filter disc, and second filter disc 32 is a compensating filter; The 3rd filter disc 33 can for sky to reduce cost; When its focal length compensating action to infrared light can be weaker than the corresponding compensation filter disc, 33 of the 3rd filter discs can be the infrared filter disc (comparing with filter,primary 31) of the different cutoff wavelengths of a slice, or the compensating filter of different refractivity (comparing with second filter disc 32).Three filter discs are mutually 120 degree angles, and it is inner to be positioned at described follower gear, and when static, the optical axis of filter,primary 31 overlaps with the optical axis of camera lens, before filter,primary 31 is positioned at the input path of camera lens, plays the effect of filtering IR.Follower gear before second filter disc 32 is come the camera lens light path, plays the effect of open IR after being rotated counterclockwise 120 degree, compensates the focus offset of IR simultaneously.And after follower gear continues to be rotated counterclockwise 120 degree; The 3rd filter disc 33 begins to play a role; The 3rd filter disc 33; Can strengthen the ultramarine glass sheet of photochrome texture or the combination of the infrared filter disc of sky filter disc UVA/UVB+ such as be one according to the purposes flexible design, also can be a far filter disc that ends.
In one embodiment; The 3rd filter disc fixture of the present invention can also directly be designed to optical texture; Fixedly filter disc can not realized optical effect, for example consults Fig. 6, becomes one the fixedly small sircle hole 331 of bore is arranged the 3rd filter disc anchor designs; Play the effect of shrinking aperture, the period that daylight is strong especially by day can be improved the exposure of camera effectively; The structure of the 3rd filter disc fixture can also structure as shown in Figure 7 be designed to the shape of a slit 332, cooperates the speed of motor, plays the effect of shutter at the volley, promotes the imaging effect of camera to moving object.
See also Fig. 5 and Fig. 3, automatic switching control equipment of the present invention adopts overall construction design, and device case is made up of base 4, loam cake 5, and wherein base is provided with motor cover 51; See that from the side base becomes L shaped with motor cover, before base 4 is fastened on the light path of camera lens; Sound construction is reliable, installs simple and easyly, and part count is few; Because camera lens itself has height, motor cover can be placed in this section space, improves space availability ratio.The crust of the device of present embodiment can all adopt the plastic cement moulding, and is to adapt to production in enormous quantities, with low cost.
Back in the another side of datum axle 41, be designed with mounting flange 42 at base 4, this mounting flange 42 is complementary with the camera lens size; Can directly be fastened on base and whole device on the camera lens; Mounting flange is provided with around light hole, and mounting flange is buckled in and just in time makes light hole relative with camera lens on the camera lens like this, and follower gear 3 makes filter disc relative with light hole 43 through rotation; Thereby be positioned at before the input path of camera lens, play the effect of optical filtering.
See also Fig. 6, the present invention can adopt stepper motor or Driven by Ultrasonic Motors, can realize the accurate location of follower gear, reaches cutting off self-lock of filter disc position.Also can adopt cheap drag cup motor or other magneto, if adopt drag cup motor or other magneto, then can the additional magnet detent mechanism; Comprise iron prop 61 and 62, and magnet 7, said magnet 7 is fixed on the said base 4; Said iron prop 61 is fixed on the said fixture; Said magnet 7 is after said drive motor 1 is out of service, and as shown in Figure 6,1 work of drag cup motor drives driving gear 2 rotations; Through the engagement of driving gear and follower gear, further drive datum axle 41 rotations of follower gear 3 around base 4; During initial position, the optical axis of filter disc 31 overlaps with the optical axis of camera lens, and iron prop 61 attracts each other with magnet 7, and filter disc is fixed on this initial position; After follower gear is rotated counterclockwise 120 °, make the center of circle of filter disc 32 come the camera lens place, the optical axis of filter disc overlaps with the optical axis of camera lens, attracts each other through iron prop 62 and magnet simultaneously, is fixed on another position; Otherwise follower gear turns clockwise after 120 °, makes filter disc 31 get back to the camera lens front position, and its center of circle overlaps with the camera lens center of circle, attracts each other through iron prop 61 and magnet simultaneously, is fixed on initial position.
Through the fixture on the follower gear being located with the magnetic of iron prop 61 is fixing.When the filter disc on fixture rotates to preposition, 61 one-tenth minimum states that attract each other of distance of magnet 7 and magnetic post, thus after the motor outage, filter disc can not depart from its latched position because of vibration, transportation or other reason.And when electric motor starting, need overcome the resistance of magnet detent mechanism, could change the position of filter disc.
The control of above-mentioned drive motor can be realized by the program that weaves in advance, like the switching signal round the clock that provides according to clock signal, or adopts a photosensitive device, exports the switching that realizes between daytime and night according to it.
The present invention also provides a kind of photographic equipment that comprises that camera, video camera etc. are used to photograph; In this photographic equipment, comprise camera lens, filter disc and above-mentioned filter disc automatic switching control equipment; When mounted; Filter disc is installed in the fixture in the automatic switching control equipment, and before making filter disc when rotating with follower gear, be positioned at the input path of camera lens, before automatic switching control equipment can be fastened on camera lens through the mounting flange on its base.Concrete structure preceding text are existing to be described, and repeats no more here.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. optical device automatic switching control equipment; It is characterized in that: comprise base; The driving gear that said base is provided with drive motor, follower gear and is meshed with it; Said driving gear is fixed on the motor output shaft of said drive motor, and said follower gear is provided with at least two fixtures that are used for fixing optical device, and said fixture circumferentially is distributed on the said follower gear.
2. according to the said optical device automatic switching control equipment of claim 1, it is characterized in that: the number of teeth of said driving gear is less than the number of teeth of said follower gear.
3. according to the said optical device automatic switching control equipment of claim 1, it is characterized in that: said fixture is the anchor ear structure.
4. according to the said optical device automatic switching control equipment of claim 1, it is characterized in that: also be provided with optical texture on the said follower gear, said optical texture is circular hole or slit.
5. according to the said optical device automatic switching control equipment of claim 1; It is characterized in that: also comprise the magnet locating device; The magnet locating device comprises magnet and at least one iron prop, and said magnet is fixed on the said base, and said iron prop is fixed on the said engaged wheel excircle.
6. photographic equipment; It is characterized in that: comprise filter disc, camera lens and optical device automatic switching control equipment; Said optical device automatic switching control equipment comprises base; The driving gear that said base is provided with drive motor, follower gear and is meshed with it, said driving gear are fixed on the motor output shaft of said drive motor, and said follower gear is provided with at least two fixtures that are used for fixing optical device; Said fixture circumferentially is distributed on the said follower gear; Said filter disc is fixed in the fixture of said optical device automatic switching control equipment, and said optical device automatic switching control equipment is fixedly connected with said camera lens, and said filter disc is positioned on the input path of said camera lens.
7. according to the said photographic equipment of claim 6, it is characterized in that: the number of teeth of said driving gear is less than the number of teeth of said follower gear.
8. according to the said photographic equipment of claim 6, it is characterized in that: also be provided with optical texture on the said follower gear, said optical texture is circular hole or slit.
9. according to the said photographic equipment of claim 6, it is characterized in that: also comprise the magnet locating device, the magnet locating device comprises magnet and at least one iron prop, and said magnet is fixed on the said base, and said iron prop is fixed on the said engaged wheel excircle.
10. according to the said photographic equipment of claim 6, it is characterized in that: the back side of said base is provided with mounting flange, and said base is fixed through said mounting flange and said camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110269783XA CN102313956A (en) | 2011-08-26 | 2011-09-13 | Optical device automatic switching device and photography equipment |
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|---|---|---|---|
| CN201110249165 | 2011-08-26 | ||
| CN201110249165.9 | 2011-08-26 | ||
| CN201110269783XA CN102313956A (en) | 2011-08-26 | 2011-09-13 | Optical device automatic switching device and photography equipment |
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| CN102313956A true CN102313956A (en) | 2012-01-11 |
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| CN201110269783XA Pending CN102313956A (en) | 2011-08-26 | 2011-09-13 | Optical device automatic switching device and photography equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364176A (en) * | 2012-12-06 | 2013-10-23 | 西安工业大学 | Testing system for laser induced damage threshold |
| CN103713445A (en) * | 2012-10-02 | 2014-04-09 | 日本精密测器株式会社 | Filter switching device, diaphragm device and camera |
| CN105467721A (en) * | 2016-01-26 | 2016-04-06 | 深圳誉品光电技术有限公司 | Optical filter day-and-night switching device and night vision photography instrument |
| CN105466468A (en) * | 2014-09-10 | 2016-04-06 | 河南平原光电有限公司 | Day-night switching positioning mechanism |
| CN107920190A (en) * | 2017-10-26 | 2018-04-17 | 北京农业智能装备技术研究中心 | Harvester applied to the crops multispectral image of agricultural robot |
| CN108495017A (en) * | 2018-06-02 | 2018-09-04 | Oppo（重庆）智能科技有限公司 | The control method of camera module, electronic device and electronic device |
| CN112204443A (en) * | 2019-02-25 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Optical filter device, imaging system, and moving object |
| CN113422900A (en) * | 2021-08-23 | 2021-09-21 | 深圳市泰冠鑫科技有限公司 | Camera capable of automatically replacing lens |
| WO2021226801A1 (en) * | 2020-05-11 | 2021-11-18 | 南昌欧菲华光科技有限公司 | Imaging apparatus and mobile terminal |
| WO2023166903A1 (en) * | 2022-03-02 | 2023-09-07 | Ｐｈｃ株式会社 | Analysis device |
| TWI818457B (en) * | 2022-03-04 | 2023-10-11 | 圓展科技股份有限公司 | Image caputuring module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103713445A (en) * | 2012-10-02 | 2014-04-09 | 日本精密测器株式会社 | Filter switching device, diaphragm device and camera |
| CN103364176A (en) * | 2012-12-06 | 2013-10-23 | 西安工业大学 | Testing system for laser induced damage threshold |
| CN103364176B (en) * | 2012-12-06 | 2016-01-20 | 西安工业大学 | A kind of laser damage threshold test macro |
| CN105466468A (en) * | 2014-09-10 | 2016-04-06 | 河南平原光电有限公司 | Day-night switching positioning mechanism |
| CN105466468B (en) * | 2014-09-10 | 2017-12-01 | 河南平原光电有限公司 | A kind of Day-night shift detent mechanism |
| CN105467721A (en) * | 2016-01-26 | 2016-04-06 | 深圳誉品光电技术有限公司 | Optical filter day-and-night switching device and night vision photography instrument |
| CN107920190A (en) * | 2017-10-26 | 2018-04-17 | 北京农业智能装备技术研究中心 | Harvester applied to the crops multispectral image of agricultural robot |
| CN108495017A (en) * | 2018-06-02 | 2018-09-04 | Oppo（重庆）智能科技有限公司 | The control method of camera module, electronic device and electronic device |
| CN112204443A (en) * | 2019-02-25 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Optical filter device, imaging system, and moving object |
| WO2021226801A1 (en) * | 2020-05-11 | 2021-11-18 | 南昌欧菲华光科技有限公司 | Imaging apparatus and mobile terminal |
| CN113422900A (en) * | 2021-08-23 | 2021-09-21 | 深圳市泰冠鑫科技有限公司 | Camera capable of automatically replacing lens |
| CN113422900B (en) * | 2021-08-23 | 2021-11-05 | 深圳市泰冠鑫科技有限公司 | Camera capable of automatically replacing lens |
| WO2023166903A1 (en) * | 2022-03-02 | 2023-09-07 | Ｐｈｃ株式会社 | Analysis device |
| TWI818457B (en) * | 2022-03-04 | 2023-10-11 | 圓展科技股份有限公司 | Image caputuring module |
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Application publication date: 20120111 |