CN202475619U - Night vision system for eliminating stray light - Google Patents
Night vision system for eliminating stray light Download PDFInfo
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- CN202475619U CN202475619U CN2012200347386U CN201220034738U CN202475619U CN 202475619 U CN202475619 U CN 202475619U CN 2012200347386 U CN2012200347386 U CN 2012200347386U CN 201220034738 U CN201220034738 U CN 201220034738U CN 202475619 U CN202475619 U CN 202475619U
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Abstract
The utility model discloses a night vision system for eliminating stray light. The night vision system for eliminating stray light comprises a camera, an infrared light supplement device, a controller and a display. The camera, the infrared light supplement device and the display are both connected with the controller, wherein the camera comprises a picture frame, a first optical filter used for enabling visible light to be penetrated, a second optical filter used for enabling infrared to be penetrated, a switch motor and a charge coupled device (CCD) image collecting device. The controller is used for controlling the switch motor according to ambient brightness and switching the first optical filter to the right ahead direction of the CCD image collecting device or switching the second optical filter to the right ahead direction of the CCD image collecting device and controlling the infrared light supplement device to supplement light at the same time. The night vision system for eliminating stray light switches the second optical filter to the right ahead direction of the CCD image collecting device at night and only infrared is allowed to penetrate and visible light is prevented from penetrating. Therefore, visible light directly shot from the opposite direction can be eliminated and clear images can be received by the night vision system at night.
Description
Technical field
The utility model relates to the safety monitoring technical field, particularly a kind of night vision system that is used to eliminate veiling glare.
Background technology
CCD (Charge-coupled Device, charge coupled cell) is a kind of semiconductor device, can be converted into digital signal to optical image.Because CCD technical development comparative maturity also has characteristics such as cost is low, property is good in batches, the life-span is long, has been widely used in the monitoring camera-shooting technical field at present.
Existing night vision supervisory control system generally comprises video camera, infrared light compensating apparatus and controller; Said video camera all is connected with controller with infrared light compensating apparatus, and this controller is used to control camera photography and controls infrared light compensating apparatus according to ambient brightness and carry out light filling.But existing night vision supervisory control system is not separated the infrared light in the night vision supervisory control system; Make video camera directly by the visible light direct projection; Because all light all can shine on the CCD of video camera; Make that the exposure meeting of video camera is excessive, cause the image meeting a vast expanse of whiteness of video camera, cannot see the object of its shooting.
In view of this, the utility model provides a kind of night vision system that is used to eliminate veiling glare.
The utility model content
In view of the weak point of above-mentioned prior art, the purpose of the utility model is to provide a kind of night vision system that is used to eliminate veiling glare, and the interference that can eliminate veiling glare makes the shooting function obtain distinct image.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of night vision system that is used to eliminate veiling glare; Comprise video camera, be used for replenishing infrared light compensating apparatus, controller and the display screen of infrared light; Said video camera, infrared light compensating apparatus and display screen all are connected with said controller, said video camera comprises picture frame, be used for seeing through visible light first filter, be used for the ccd image harvester that sees through ultrared second filter, be used to switch the switching motor of said first filter and second filter and be used to gather video image; Said first filter and second filter are positioned on the same plane, and are positioned at the place ahead of said ccd image harvester, and said switching motor is positioned at a side of said picture frame, and are connected with said controller.
The above-mentioned night vision system that is used for eliminating veiling glare also comprises the first sensor that is used for testing environment brightness, and said first sensor is connected with controller.
The above-mentioned night vision system that is used for eliminating veiling glare is used to detect second transducer with the infrared light of the identical wave band of infrared light compensating apparatus, and said second transducer is connected with controller.
The above-mentioned night vision system that is used for eliminating veiling glare is coated with the first individual layer nanometer film that is used for seeing through visible light on said first filter, the thickness of the said first individual layer nanometer film is 1uA.
The above-mentioned night vision system that is used for eliminating veiling glare is coated with on said second filter and is used for seeing through the ultrared second individual layer nanometer film, and the thickness of the said second individual layer nanometer film is 1uA.
The above-mentioned night vision system that is used for eliminating veiling glare, said infrared light compensating apparatus is infrared LED lamp or infrared laser device.
Compared to prior art; The night vision system that the utility model provides is used to eliminate veiling glare comprises video camera, is used for replenishing infrared light compensating apparatus, controller and the display screen of infrared light; Said video camera, infrared light compensating apparatus and display screen all are connected with said controller; Wherein, said video camera comprise picture frame, be used for seeing through visible light first filter, be used for the ccd image harvester that sees through ultrared second filter, be used to switch the switching motor of said first filter and second filter and be used to gather video image; Said first filter and second filter are positioned on the same plane; And be positioned at the place ahead of said ccd image harvester; Said switching motor is positioned at a side of said picture frame, and is connected with said controller, and said controller is used for according to ambient brightness control switching motor said first filter being switched to the dead ahead of ccd image harvester; Perhaps said second filter is switched to the dead ahead of ccd image harvester, control infrared light compensating apparatus light filling simultaneously.The night vision system that is used to eliminate veiling glare that the utility model provides switches to first filter dead ahead of ccd image harvester when environment is brighter, only allow visible light transmissive, makes it can obtain colour picture clearly; When at night; Second filter is switched to the dead ahead of ccd image harvester; Only allow infrared ray to see through the prevention visible light transmissive; And control infrared light compensating apparatus light filling, thus eliminated the interference of veiling glare of visible light (such as auto lamp) wave band and other wave band of opposite direct projection video camera, make night vision system no matter still can both obtain distinct image by day at night.
Description of drawings
Fig. 1 is used to eliminate the structural representation of the night vision system of veiling glare for the utility model.
Fig. 2 is used for eliminating the sectional view of the night vision system video camera of veiling glare for the utility model.
Fig. 3 is used to eliminate the circuit theory diagrams of the night vision system of veiling glare for the utility model.
Fig. 4 is used for eliminating the night vision system video camera imaging signal schematic representation of veiling glare for the utility model.
Embodiment
For the purpose, technical scheme and the effect that make the utility model is clearer, clear and definite, below develop simultaneously embodiment to the utility model further explain with reference to accompanying drawing.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 1 and Fig. 2; The night vision system that the utility model embodiment provides is used to eliminate veiling glare comprises video camera 11, is used for replenishing infrared light compensating apparatus 21, controller 31 and the display screen 41 of infrared light, and said video camera 11, infrared light compensating apparatus 21 all are connected with said controller 31 with display screen 41.Said infrared light compensating apparatus 21 is infrared LED lamp or infrared laser device, and the signal emission infrared ray that is used for sending according to controller 31 carries out light filling.
Wherein, said video camera 11 comprise picture frame 111, be used for seeing through first filter 112 of visible light, the ccd image harvester 115 that is used for seeing through ultrared second filter 113, is used to switch the switching motor 114 of said first filter 112 and second filter 113 and is used to gather video image; Said first filter 112 and second filter 113 are positioned on the same plane; And be positioned at the place ahead of said ccd image harvester 115; Said switching motor 114 is positioned at a side of said picture frame 111; And be connected with said controller 31; Said controller 31 is used for according to ambient brightness control switching motor 114 said first filter 112 being switched to the dead ahead of ccd image harvester 115, perhaps said second filter 113 is switched to the dead ahead of ccd image harvester 115, controls infrared light compensating apparatus 21 light fillings simultaneously.
In other embodiments, the utility model also can switch first filter 112 and second filter 113 through manual mode according to ambient light illumination.
In the specific implementation, be coated with the first individual layer nanometer film that is used for seeing through visible light on said first filter 112, the thickness of the said first individual layer nanometer film is 1uA.Wherein, this first individual layer nanometer film only allows the light of 380nm ~ 780nm wavelength to pass through, and the light of its commplementary wave length all ends.Be coated with on said second filter 113 and be used for seeing through the ultrared second individual layer nanometer film, the thickness of the said second individual layer nanometer film is 1uA.The said second individual layer nanometer film only allows to pass through with the light of infrared light compensating apparatus 21 identical wavelength, and the light of its commplementary wave length all ends.
Among the utility model embodiment; The described night vision system that is used to eliminate veiling glare also comprises the first sensor 51 that is used for testing environment brightness and second transducer 61 that is used to detect with the infrared light of infrared light compensating apparatus 21 identical wave bands; As shown in Figure 3, said first sensor 51 all is connected with controller 31 with second transducer 61.Said first sensor 51 can testing environment be that the light (voltage is lower than 1V) or the information of dark (voltage is higher than 1V) are passed to controller 31, carries out corresponding work through controller 31 control video cameras 11 with infrared light compensating apparatus 21.
The utility model embodiment provides, and to be used to eliminate the operation principle of night vision system of veiling glare following:
During the current environment light; By first sensor 51 luminance signal is transferred to controller 31; Controller 31 is with this information notice video camera 11 and infrared light compensating apparatus 21; And control is before switching motor 114 switches to ccd image harvester 115 with first filter 112, and only let radiation of visible light this moment to ccd image harvester 115, thereby can obtain the image of beautiful color; After infrared light compensating apparatus 21 is learnt and is the information of bright environment simultaneously,, stop luminous, energy-conserving and environment-protective with the power supply of closing infrared light filling lamp.
When current environment is dark; By first sensor 51 luminance signal is transferred to controller 31; Controller 31 is with this information notice video camera 11 and infrared light compensating apparatus 21; And control is before switching motor 114 switches to ccd image harvester 115 with second filter 113, and the illumination of only conveying the identical wavelength of infrared light compensating apparatus 21 this moment is mapped on the ccd image harvester 115, makes ccd image harvester 115 can obtain the image of high brightness; Open infrared light compensating apparatus 21 simultaneously and make infrared light filling lamp luminous, carry out the dark illumination.Night vision system is operated in this pattern following time; Owing to only allow the illumination identical to be mapped on the ccd image harvester 115, just can eliminate visible light (such as the auto lamp) wave band of opposite direct projection and the interference of other band of light with the wavelength of infrared light compensating apparatus 21.
And under the night vision environment; After the second transducer device detects the infrared light that light compensating apparatus sends outside the equal red, this signal is sent to controller, controller notice video camera starts the solar eclipse inhibit feature; Surpass certain threshold value [like TH2_X during with infrared imaging; This threshold value can be adjusted at (between 0.1V ~ 1V) according to user's actual needs] brightness signal Y become black level, the luminance signal with area B (area B) and area A (regional A) part improves simultaneously, the highlights during meeting can just become black like this; Improved the brightness of other parts of whole image, as shown in Figure 4.
In sum; The night vision system that the utility model provides is used to eliminate veiling glare comprises video camera, is used for replenishing infrared light compensating apparatus, controller and the display screen of infrared light; Said video camera, infrared light compensating apparatus and display screen all are connected with said controller; Wherein, said video camera comprise picture frame, be used for seeing through visible light first filter, be used for the ccd image harvester that sees through ultrared second filter, be used to switch the switching motor of said first filter and second filter and be used to gather video image; Said first filter and second filter are positioned on the same plane; And be positioned at the place ahead of said ccd image harvester; Said switching motor is positioned at a side of said picture frame, and is connected with said controller, and said controller is used for according to ambient brightness control switching motor said first filter being switched to the dead ahead of ccd image harvester; Perhaps said second filter is switched to the dead ahead of ccd image harvester, control infrared light compensating apparatus light filling simultaneously.The night vision system that is used to eliminate veiling glare that the utility model provides switches to first filter dead ahead of ccd image harvester when environment is brighter, only allow visible light transmissive, makes it can obtain colour picture clearly; When at night; Second filter is switched to the dead ahead of ccd image harvester; Only allow infrared ray to see through the prevention visible light transmissive; And control infrared light compensating apparatus light filling, thus eliminated the interference of veiling glare of visible light (such as auto lamp) wave band and other wave band of opposite direct projection video camera, make night vision system no matter still can both obtain distinct image by day at night.
It is understandable that; Concerning those of ordinary skills; Can be equal to replacement or change according to the technical scheme and the utility model design thereof of the utility model, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (6)
1. night vision system that is used to eliminate veiling glare; Comprise video camera, be used for replenishing infrared light compensating apparatus, controller and the display screen of infrared light; Said video camera, infrared light compensating apparatus and display screen all are connected with said controller; It is characterized in that, said video camera comprises picture frame, be used for seeing through visible light first filter, be used for the ccd image harvester that sees through ultrared second filter, be used to switch the switching motor of said first filter and second filter and be used to gather video image; Said first filter and second filter are positioned on the same plane, and are positioned at the place ahead of said ccd image harvester, and said switching motor is positioned at a side of said picture frame, and are connected with said controller.
2. the night vision system that is used to eliminate veiling glare according to claim 1 is characterized in that, also comprises the first sensor that is used for testing environment brightness, and said first sensor is connected with controller.
3. the night vision system that is used to eliminate veiling glare according to claim 1 is characterized in that, is used to detect second transducer with the infrared light of the identical wave band of infrared light compensating apparatus, and said second transducer is connected with controller.
4. the night vision system that is used to eliminate veiling glare according to claim 1 is characterized in that, is coated with the first individual layer nanometer film that is used for seeing through visible light on said first filter, and the thickness of the said first individual layer nanometer film is 1uA.
5. the night vision system that is used to eliminate veiling glare according to claim 1 is characterized in that, is coated with on said second filter to be used for seeing through the ultrared second individual layer nanometer film, and the thickness of the said second individual layer nanometer film is 1uA.
6. the night vision system that is used to eliminate veiling glare according to claim 1 is characterized in that, said infrared light compensating apparatus is infrared LED lamp or infrared laser device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200347386U CN202475619U (en) | 2012-02-03 | 2012-02-03 | Night vision system for eliminating stray light |
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| CN2012200347386U CN202475619U (en) | 2012-02-03 | 2012-02-03 | Night vision system for eliminating stray light |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259969A (en) * | 2013-04-18 | 2013-08-21 | 奇瑞汽车股份有限公司 | Night vision system and vehicle |
| CN103716515A (en) * | 2013-12-10 | 2014-04-09 | 浙江宇视科技有限公司 | Camera capable of preventing infrared virtual focus and control method of camera |
| CN104410794A (en) * | 2014-12-23 | 2015-03-11 | 深圳市保千里电子有限公司 | Digital camera with night vision function |
| CN104735330A (en) * | 2015-04-13 | 2015-06-24 | 成都科美光电科技有限公司 | Night-vision device capable of cleaning and filling in light automatically |
| CN107623831A (en) * | 2017-08-12 | 2018-01-23 | 四川精视科技有限公司 | A kind of building visual phone imaging device full-color round the clock |
| CN108200322A (en) * | 2018-02-01 | 2018-06-22 | 天津天地伟业信息系统集成有限公司 | A kind of empty burnt solution of video camera camera lens under white-black pattern |
| CN109963086A (en) * | 2018-07-30 | 2019-07-02 | 华为技术有限公司 | Be time-multiplexed light filling imaging device and method |
| CN111246186A (en) * | 2020-01-21 | 2020-06-05 | 重庆金康新能源汽车有限公司 | Vehicle-mounted camera system and method |
| CN113691730A (en) * | 2021-09-03 | 2021-11-23 | 浙江宇视科技有限公司 | Task switching control method and device for camera, medium and electronic equipment |
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2012
- 2012-02-03 CN CN2012200347386U patent/CN202475619U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259969A (en) * | 2013-04-18 | 2013-08-21 | 奇瑞汽车股份有限公司 | Night vision system and vehicle |
| CN103716515A (en) * | 2013-12-10 | 2014-04-09 | 浙江宇视科技有限公司 | Camera capable of preventing infrared virtual focus and control method of camera |
| CN103716515B (en) * | 2013-12-10 | 2018-01-16 | 浙江宇视科技有限公司 | It is a kind of to avoid infrared empty burnt video camera and its control method |
| CN104410794A (en) * | 2014-12-23 | 2015-03-11 | 深圳市保千里电子有限公司 | Digital camera with night vision function |
| CN104735330A (en) * | 2015-04-13 | 2015-06-24 | 成都科美光电科技有限公司 | Night-vision device capable of cleaning and filling in light automatically |
| CN107623831A (en) * | 2017-08-12 | 2018-01-23 | 四川精视科技有限公司 | A kind of building visual phone imaging device full-color round the clock |
| CN108200322A (en) * | 2018-02-01 | 2018-06-22 | 天津天地伟业信息系统集成有限公司 | A kind of empty burnt solution of video camera camera lens under white-black pattern |
| CN109963086A (en) * | 2018-07-30 | 2019-07-02 | 华为技术有限公司 | Be time-multiplexed light filling imaging device and method |
| CN109963086B (en) * | 2018-07-30 | 2020-06-16 | 华为技术有限公司 | Time division multiplexing supplementary lighting imaging device and method |
| US11470262B2 (en) | 2018-07-30 | 2022-10-11 | Huawei Technologies Co., Ltd. | Time division multiplexing fill light imaging apparatus and method |
| CN111246186A (en) * | 2020-01-21 | 2020-06-05 | 重庆金康新能源汽车有限公司 | Vehicle-mounted camera system and method |
| CN113691730A (en) * | 2021-09-03 | 2021-11-23 | 浙江宇视科技有限公司 | Task switching control method and device for camera, medium and electronic equipment |
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