CN204422841U - A kind of double switching device of optical fiber - Google Patents
A kind of double switching device of optical fiber Download PDFInfo
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- CN204422841U CN204422841U CN201520035225.0U CN201520035225U CN204422841U CN 204422841 U CN204422841 U CN 204422841U CN 201520035225 U CN201520035225 U CN 201520035225U CN 204422841 U CN204422841 U CN 204422841U
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Abstract
The utility model discloses a kind of double switching device of optical fiber, for video camera, described double switching device of optical fiber comprises the first drive motor of the first filter supporter and correspondence thereof, and second second drive motor of filter supporter and correspondence thereof, be arranged side by side before and after described first filter supporter and the second filter supporter, described first drive motor drives the optical filter in the first filter supporter to switch, and described second drive motor drives the optical filter in the second filter supporter to switch.By arranging two row's optical filters, making for any scene, having at most two pieces of optical filters to work simultaneously.Two row's filter supporter are driven by independent drive motor respectively, can provide more filter set syntypes, with the application of satisfied different scene.
Description
Technical field
The utility model belongs to CCTV camera technical field, particularly relates to a kind of double switching device of optical fiber.
Background technology
Gun shaped video camera is the one in safety monitoring class video camera, is applicable to light inadequate or cannot install the area of light fixture night, only monitor scenery position or mobile time, generally adopt gun type camera.
Video monitoring requires 24 hours continuous firings, wishes that monitored picture is colored by day in the sufficient situation of illumination, as long as then black and white monitored picture is just passable at night, therefore general gun shaped video camera all needs color/monochrome translation function.Common black and white conversion is switched by the two optical filter of driven by motor to realize, and wherein a slice is applicable to daytime, and filtering infrared ray, avoids colour cast; Another sheet is applicable to evening, saturating ultrared while compensating light path difference.The optical filter being applicable to daytime uses blue glass or optical glass to add the mode of IR cut film mostly, is used for filtering infrared ray; The optical filter being applicable to evening uses common optical glass or crystal mostly, is used for compensating light path.
As shown in Figure 1, the filtering apparatus of existing gun shaped video camera is arranged in housing 1, comprises filtering apparatus housing 2, drive motor 3, filter supporter 4, and is arranged on the first optical filter 5 and the second optical filter 6 in filter supporter 4.Filtering apparatus housing 2 is arranged on housing 1, the frame 4 of optical filter is arranged on filtering apparatus housing 2, and move left and right under the driving of drive motor 3, thus drive the first optical filter 5, second optical filter 6 to switch before imageing sensor, realize the normal photographing in different time sections.
Quick-fried table is continued at recent domestic PM2.5, under the situation that haze seriously causes traffic hazard to take place frequently, three optical filter schemes are arisen at the historic moment, as shown in Figure 2, three optical filters add the cut-off of a slice visible ray on the basis of Fig. 1, the optical filter 7 of infrared permeable, still can normally effectively work under haze weather, has anti-fog effect.
But prior art can only have a tablet filter in work under same state, and by structural limitations, the optical filter limited amount that single filter supporter can be carried, switchable state is few.Polarized light is eliminated for needs, strong frontlighting scene can not adapt to completely.
Summary of the invention
The purpose of this utility model is to provide a kind of double switching device of optical fiber, can only have a tablet filter in work, can not adapt to the problem of complex work scene completely to solve existing count protocol under same state.
To achieve these goals, to terminate scheme as follows for the utility model:
A kind of double switching device of optical fiber, for video camera, described double switching device of optical fiber comprises the first drive motor of the first filter supporter and correspondence thereof, and second second drive motor of filter supporter and correspondence thereof, be arranged side by side before and after described first filter supporter and the second filter supporter, described first drive motor drives the optical filter in the first filter supporter to switch, and described second drive motor drives the optical filter in the second filter supporter to switch.
Wherein, described first filter supporter, the second filter supporter, be at least provided with a tablet filter respectively.Described first filter supporter, the second filter supporter are provided with the lens frame for installing described optical filter, arranging in described lens frame has a glue groove.The utility model filter supporter arranges multiple optical filter, is convenient to combine, have two optical filters to meet the demand of different monitoring scene corresponding to gate.
First drive motor described in the utility model, the second drive motor are at least one in solenoid valve, direct current generator, stepper motor, select different drive motor to drive according to the quantity of optical filter.
The utility model two is arranged filter supporter installation site and is had following combination:
Before described first filter supporter and the second filter supporter are all arranged on camera lens;
Or before described first filter supporter is arranged on camera lens, described second filter supporter is arranged within camera lens.
Or, before described first filter supporter is arranged on camera lens, after described second filter supporter is arranged on camera lens;
Or described first filter supporter and the second filter supporter are all arranged within camera lens;
Or described first filter supporter is arranged within camera lens, after described second filter supporter is arranged on camera lens;
Or, after described first filter supporter and the second filter supporter are all arranged on camera lens.
The application of all video cameras is met by combinations thereof.
Further, described double switching device of optical fiber is fixedly mounted on lid, described first filter supporter is connected with the motor screw on the first drive motor, second filter supporter is connected with the motor screw on the second drive motor, described first filter supporter and the second filter supporter are also flexibly connected by the litter be arranged on lid with between lid, be convenient to slide handover, or be flexibly connected by the guide rail be arranged on lid, be convenient to slide handover.The fixed form of filter supporter and lid, according to the design variation of lid, is not limited to above-mentioned two kinds of modes.
The utility model preferably, described first filter supporter is provided with three tablet filter A1, A2, A3, be respectively AR-Bai Bo-AR optical filter, visible ray cutoff filter, dim light optical filter, described second filter supporter is also provided with three tablet filter B1, B2, B3, is respectively AR-Bai Bo-AR optical filter, the white glass of IR-/blue glass-AR optical filter, the white glass of IR-/blue glass-PL optical filter.
Further, described double switching device of optical fiber corresponds to imageing sensor window, has following combination:
Described optical filter A1 and B1 combines, and is applicable to universal night;
Described optical filter A1 and B2 combines, and is applicable to common daytime;
Described optical filter A1 and B3 combines, and is applicable to charge bayonet socket and gateway application;
Described optical filter A2 and B1 combines, and is applicable to greasy weather application;
Described optical filter A3 and B2 combines, and is applicable to electronic police application, for strong frontlighting scene, needs the environment exposing reduction by two grades;
Described optical filter A3 and B3 combines, and is applicable to electronic police application, for strong frontlighting scene or the scene needing elimination polarized light.
By above-mentioned setting, the monitoring lighting requirements of all application scenarioss under meeting existing weather conditions preferably.
The utility model proposes a kind of double switching device of optical fiber, by arranging two row's optical filters, making for any scene, have at most two pieces of optical filters to work simultaneously.Two row's filter supporter are driven by independent drive motor respectively, can provide more filter set syntypes, with the application of satisfied different scene.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the switching device of optical fiber of existing gun shaped video camera;
Fig. 2 is the another kind of structural representation of the switching device of optical fiber of existing gun shaped video camera;
Fig. 3 is the structured flowchart of the double switching device of optical fiber of the utility model;
Fig. 4 is the schematic diagram of the double optical filter of the utility model;
Fig. 5 is a kind of example structure schematic diagram of the present utility model;
Fig. 6 is the side view of the utility model embodiment;
Fig. 7 is the installation diagram of the utility model embodiment.
Embodiment
Be described in further details technical solutions of the utility model below in conjunction with drawings and Examples, following examples are not formed restriction of the present utility model.
As shown in Figure 3, a kind of double switching device of optical fiber of the utility model comprises the first drive motor of the first filter supporter and correspondence thereof, and second second drive motor of filter supporter and correspondence thereof, be arranged side by side before and after first filter supporter and the second filter supporter, first drive motor drives the optical filter in the first filter supporter to switch, and the second drive motor drives the optical filter in the second filter supporter to switch.
The optical filter quantity that first filter supporter and the second filter supporter are carried can adjust according to different demands, is at least equipped with one piece of optical filter.In fact the optical filter limited amount that each filter supporter is arranged is in the structure of video camera, and what in current practical application, the quantity of optical filter was conventional is two panels, also has the design arranging three tablet filters.If place 4 pieces even optical filter of greater number, then need to make corresponding adjustment to the structure of video camera protecgulum.First filter supporter and the second filter supporter are provided with the lens frame of installing optical filter, and arranging in each lens frame has a glue groove, and a glue groove puts glue, and optical filter is adhesive in lens frame, and the present embodiment is not limited to concrete optical filter quantity of carrying.
Below so that each filter supporter to carry three tablet filters to be described in detail, as shown in Figure 4, the first filter supporter is equipped with three optical filters A1, A2, A3, the second filter supporter is equipped with three optical filters B1, B2, B3.But no matter two filter supporter carry how many optical filters, a unique window is only had corresponding to camera lens and imageing sensor (Sense), optical filter before this window then has following array mode: A1-B1, A1-B2, A1-B3, A2-B1, A2-B2, A2-B3, A3-B1, A3-B2, A3-B3.
In the application of reality, by arranging suitable optical filter, meet the requirement of application scenarios.List a kind of embodiment below, each optical filter arranges as follows:
A1:AR-Bai Bo-AR optical filter;
A2: visible ray cutoff filter;
A3:ND4 dim light optical filter;
B1:AR-Bai Bo-AR optical filter;
The white glass of B2:IR-/blue glass-AR optical filter;
The white glass of B3:IR-/blue glass-PL optical filter.
Wherein, AR is antireflection anti-reflection film, and IR refers to infrared ray cut film, and ND2 refers to that dim light 50%, ND4 refers to that dim light 75%, ND8 refers to that dim light 87.25%, PL refers to polarized light cut film.
Then can be combined into following application:
1), A1-B1: universal night is applied, and can increase infrared or white light light filling;
2), A1-B2: common daytime is applied, the scene higher for general ambient brightness or colored low photograph, and wherein low photograph refers to that ambient light is more weak, and illumination is lower;
3), A1-B3: charge bayonet socket and gateway are applied, or other needs the scene eliminating polarized light, and polarizing filter can be used as ND2 in any case and use;
4), A2-B1: the greasy weather is applied, and does optics Penetrating Fog; Or coordinate infrared light filling, for night monitoring, at this time only pay close attention to light filling region;
5), A3-B2: electronic police is applied, and for strong frontlighting scene, needs the environment exposing reduction by two grades;
6), A3-B3: electronic police is applied, and for strong frontlighting scene or the scene needing elimination polarized light, can be equivalent to ND8, makes exposure reduce third gear.
It should be noted that, combinations thereof is a kind of embodiment, and selection and the collocation of optical filter can include but not limited to above design.Such as in bayonet socket, the alert equipment of electricity, usually need collocation one piece of ND filter, to realize dimming effect.Then before being closely close to camera lens, the first filter supporter is placed in face position, embeds ND2, ND4 or ND8 filter, to promote image effect; Meanwhile, the second filter supporter of arranging in pairs or groups at camera lens rear, carries conventional cutoff filter, white glass combination, realizes diurnal pattern and switch.
First drive motor and second drive motor of the present embodiment are selected from solenoid valve, direct current generator and stepper motor according to the quantity of driven optical filter.Solenoid valve only can drive the optical filter within single 2 pieces; Direct current generator equally only can drive the optical filter within 2 pieces, but driving moment is greater than solenoid valve, can be used for the optical filter combination driving eyeglass relatively large; Stepper motor accurately drives by collocation sensor and locates lens position, is mainly used in driving 2 pieces with upper filter, uses stepper motor to drive picture frame fine positioning movements simultaneously, avoids the collision of picture frame and support, thus improves device serviceable life.
Such as: the first filter supporter is equipped with 2 tablet filters, the second filter supporter is equipped with 3 tablet filters, then the first drive motor can select solenoid valve, or direct current generator, or stepper motor, and the second drive motor then should select stepper motor.
In the application of reality, light enters imageing sensor imaging by optical filter, and therefore the particular location of optical filter has multiple choices, can before camera lens, or after camera lens, or in camera lens.And there is in double switching device of optical fiber of the present utility model double filter supporter, therefore two row's filter supporter have following integrated mode:
(1) two arranges all before the lens: look video camera space layout situation and select, be preferably used on bayonet socket, electronic police video camera.
(2) one come camera lens before, another comes in camera lens: look video camera space layout situation and select, be preferably used on bayonet socket, electronic police video camera, ball machine.
(3) one come camera lens before, after another comes camera lens: be preferably used on bayonet socket, electronic police video camera, bayonet socket, the alert equipment of electricity need collocation one piece of ND filter, usually to realize dimming effect.In fact before can being closely close to camera lens, row's switching device of optical fiber is placed in face position, embeds ND2, ND4 or ND8 filter, to promote image effect.Meanwhile, conventional cutoff filter of can arranging in pairs or groups after camera lens, white glass combine, and realize diurnal pattern and switch.
(4) two rows are all in camera lens: look video camera space layout situation and select, be preferably used on ball machine and all-in-one.
(5) one come in camera lens, after another comes camera lens: be preferably used on ball machine, all-in-one, cylinder machine, hemisphere, gunlock, bayonet socket, electronic police video camera, camera lens light path design difficulty can be increased in view of placing two row's optical filter devices in camera lens, affect limited camera lens inner structure layout, therefore automatic/hand zoom lens is all only with row's switching device of optical fiber usually simultaneously.In this case, can in conjunction with camera lens and complete machine matching structure layout, reserved certain space allowance between camera lens and Senser, places row's switching device of optical fiber, can realize the application of double optical filter equally.
(6) two rows are all after camera lens: main application product: be preferably used on gunlock, cylinder machine, dome type camera, the Main Bottleneck of this location layout scheme is rear lens focus problem, therefore the support carrying eyeglass will be accomplished as far as possible thin.Filter thickness is generally 0.21 ~ 0.5mm, for the optical filter of 0.21mm, the thickness that support posts optical filter can accomplish that 0.5mm is even thinner, thus two row optical filters gross thickness can management and control within 1mm, certain two row filter supporter between need maintenance one determining deviation.
The utility model, for double 6 optical filter step motor type schemes, parallelly on original single filtering apparatus basis adds another single filter supporter and forms double switching device of optical fiber.As shown in Fig. 5, Fig. 6, Fig. 7, comprise the first drive motor 301 of the first filter supporter 401 and correspondence thereof, and with the second filter supporter 402 placed side by side before and after the first filter supporter 401 and the second corresponding drive motor 302 thereof.The filter thickness that the present embodiment can use according to reality, flexibly adjustment filter supporter thickness, simultaneously reserved four edge point glue grooves 30 in lens frame.First filter supporter 401 is connected with the first drive motor 301 by motor screw 10, and the second filter supporter 402 is connected with the second drive motor 302 by motor screw 20.First filter supporter 401 and the second filter supporter 402 can also be flexibly connected by the litter be arranged on lid 1 with between lid 1, are convenient to slide handover; Or be flexibly connected by the guide rail be arranged on lid 1, be convenient to slide handover.Two drive motor 3 (301,302) are divided into both sides to put, and reduce device integral thickness, increase the adaptive faculty to topology layout.
Usual double switching device of optical fiber of the present utility model is fixed on lid 1, as shown in Figure 7.Lid 1 is between camera lens and imageing sensor, and light enters imageing sensor imaging after entering filtering apparatus by camera lens again.
It should be noted that, the present embodiment illustrate only filter supporter situation transversely arranged in lid, and optical filter is the horizontal switching that horizontally slips in filter supporter; If be longitudinally arranged in lid by filter supporter, optical filter longitudinally slides up and down switching in filter supporter, also can reach technique effect of the present utility model equally; Even filter supporter is set to circle, optical filter rotates switching in filter supporter.The utility model is not limited to the shape of filter supporter and the switching mode of optical filter.
The application that the utility model has at most 2 pieces of optical filters to work under achieving the same state of video camera simultaneously, has greatly enriched optical filter array configuration, improves camera application scene adaptive faculty.
Above embodiment is only in order to illustrate the technical solution of the utility model but not to be limited; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.
Claims (8)
1. a double switching device of optical fiber, for video camera, it is characterized in that, described double switching device of optical fiber comprises the first drive motor of the first filter supporter and correspondence thereof, and second second drive motor of filter supporter and correspondence thereof, be arranged side by side before and after described first filter supporter and the second filter supporter, described first drive motor drives the optical filter in the first filter supporter to switch, and described second drive motor drives the optical filter in the second filter supporter to switch.
2. double switching device of optical fiber according to claim 1, is characterized in that, described first filter supporter, the second filter supporter, be at least provided with a tablet filter respectively.
3. double switching device of optical fiber according to claim 2, is characterized in that, described first filter supporter, the second filter supporter is provided with the lens frame for installing described optical filter, and arranging in described lens frame has a glue groove.
4. double switching device of optical fiber according to claim 1, is characterized in that, described first drive motor, the second drive motor are at least one in solenoid valve, direct current generator, stepper motor.
5. double switching device of optical fiber according to claim 1, is characterized in that, before described first filter supporter and the second filter supporter are all arranged on camera lens;
Or before described first filter supporter is arranged on camera lens, described second filter supporter is arranged within camera lens;
Or, before described first filter supporter is arranged on camera lens, after described second filter supporter is arranged on camera lens;
Or described first filter supporter and the second filter supporter are all arranged within camera lens;
Or described first filter supporter is arranged within camera lens, after described second filter supporter is arranged on camera lens;
Or, after described first filter supporter and the second filter supporter are all arranged on camera lens.
6. double switching device of optical fiber according to claim 5, it is characterized in that, described double switching device of optical fiber is fixedly mounted on lid, described first filter supporter is connected with the motor screw on the first drive motor, second filter supporter is connected with the motor screw on the second drive motor, described first filter supporter and the second filter supporter are also flexibly connected by the litter be arranged on lid with between lid, be convenient to slide handover, or be flexibly connected by the guide rail be arranged on lid, be convenient to slide handover.
7. double switching device of optical fiber according to claim 5, it is characterized in that, described first filter supporter is provided with three tablet filter A1, A2, A3, be respectively AR-Bai Bo-AR optical filter, visible ray cutoff filter, dim light optical filter, described second filter supporter is also provided with three tablet filter B1, B2, B3, is respectively AR-Bai Bo-AR optical filter, the white glass of IR-/blue glass-AR optical filter, the white glass of IR-/blue glass-PL optical filter.
8. double switching device of optical fiber according to claim 7, is characterized in that, described double switching device of optical fiber corresponds to imageing sensor window, has following combination:
Described optical filter A1 and B1 combines, and is applicable to universal night;
Described optical filter A1 and B2 combines, and is applicable to common daytime;
Described optical filter A1 and B3 combines, and is applicable to charge bayonet socket and gateway application;
Described optical filter A2 and B1 combines, and is applicable to greasy weather application;
Described optical filter A3 and B2 combines, and is applicable to electronic police application, for strong frontlighting scene, needs the environment exposing reduction by two grades;
Described optical filter A3 and B3 combines, and is applicable to electronic police application, for strong frontlighting scene or the scene needing elimination polarized light.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105242485A (en) * | 2015-11-20 | 2016-01-13 | 重庆盾银科技有限公司 | Multi-spectrum filter switching device for image imaging device |
| CN105739222A (en) * | 2016-03-15 | 2016-07-06 | 浙江水晶光电科技股份有限公司 | Stepping glass sheet switching module |
| CN106444228A (en) * | 2016-11-20 | 2017-02-22 | 东莞市维斗科技股份有限公司 | Cycloidal motion IR-CUT switcher for multi-layer optical filter |
| CN108551549A (en) * | 2018-07-05 | 2018-09-18 | 佛山小诺电子科技有限公司 | A kind of backsight backup camera of achievable night vision effect |
| CN108956465A (en) * | 2018-07-27 | 2018-12-07 | 天津大学 | A kind of plug in construction for oil field reinjection water on-line monitoring |
| WO2020063329A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳市大疆创新科技有限公司 | Control apparatus, output apparatus, photographing apparatus, control method and program |
| CN112203065A (en) * | 2020-10-10 | 2021-01-08 | Oppo广东移动通信有限公司 | Image generation device, electronic apparatus, and image generation method |
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| CN113984203A (en) * | 2020-07-27 | 2022-01-28 | 深圳中科飞测科技股份有限公司 | Filter wheel device, optical detection system and working method of filter wheel device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242485A (en) * | 2015-11-20 | 2016-01-13 | 重庆盾银科技有限公司 | Multi-spectrum filter switching device for image imaging device |
| CN105242485B (en) * | 2015-11-20 | 2018-01-09 | 重庆盾银科技有限公司 | A kind of multispectral optical filter switching device for image image device |
| CN105739222A (en) * | 2016-03-15 | 2016-07-06 | 浙江水晶光电科技股份有限公司 | Stepping glass sheet switching module |
| CN106444228A (en) * | 2016-11-20 | 2017-02-22 | 东莞市维斗科技股份有限公司 | Cycloidal motion IR-CUT switcher for multi-layer optical filter |
| CN108551549A (en) * | 2018-07-05 | 2018-09-18 | 佛山小诺电子科技有限公司 | A kind of backsight backup camera of achievable night vision effect |
| CN108956465A (en) * | 2018-07-27 | 2018-12-07 | 天津大学 | A kind of plug in construction for oil field reinjection water on-line monitoring |
| WO2020063329A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳市大疆创新科技有限公司 | Control apparatus, output apparatus, photographing apparatus, control method and program |
| CN111263915A (en) * | 2018-09-28 | 2020-06-09 | 深圳市大疆创新科技有限公司 | Control device, output device, imaging device, control method, and program |
| US11256158B2 (en) | 2018-09-28 | 2022-02-22 | SZ DJI Technology Co., Ltd. | Control device, output device, imaging device, control method and program |
| CN113984203A (en) * | 2020-07-27 | 2022-01-28 | 深圳中科飞测科技股份有限公司 | Filter wheel device, optical detection system and working method of filter wheel device |
| CN112203065A (en) * | 2020-10-10 | 2021-01-08 | Oppo广东移动通信有限公司 | Image generation device, electronic apparatus, and image generation method |
| CN113694388A (en) * | 2021-07-19 | 2021-11-26 | 西安交通大学 | Photon treatment handle and optical filter rotation switching device thereof |
| CN113694388B (en) * | 2021-07-19 | 2022-12-09 | 西安交通大学 | Photon treatment handle and optical filter rotation switching device thereof |
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