CN201662673U - Light supplementing device of camera - Google Patents
Light supplementing device of camera Download PDFInfo
- Publication number
- CN201662673U CN201662673U CN2009203127704U CN200920312770U CN201662673U CN 201662673 U CN201662673 U CN 201662673U CN 2009203127704 U CN2009203127704 U CN 2009203127704U CN 200920312770 U CN200920312770 U CN 200920312770U CN 201662673 U CN201662673 U CN 201662673U
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- China
- Prior art keywords
- video camera
- filling plate
- light
- lower house
- light filling
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Abstract
The utility model relates to camera shooting equipment, in particular to a light supplementing device of a camera. The light supplementing device comprises a casing and a camera base, wherein the casing comprises a lower casing and a casing cover which are movably connected; a cavity is formed in the lower casing; the camera base is arranged in the cavity; a light supplementing plate is also arranged on the camera base; at least one infrared lamp is arranged on the light supplementing plate; and the surface of the casing cover adopts tempered light-filtering glass. The light supplementing device can shoot clear feature image of human face even under the interference of strong backlight (visible light) in the surroundings. In addition, the light supplementing device has the advantages of low cost and investment, easy realization, simple and convenient operation, convenient installation, easy popularization and wide application range.
Description
Technical field
The utility model relates to a kind of picture pick-up device.
Background technology
Video camera on the home market is based on CCD (Charge Coupled Device, charge-coupled image sensor) imaging technique at present.Its groundwork principle is: the image process lens focus of subject is on the CCD chip, CCD is according to the electric charge of the power accumulation corresponding proportion of light, and the electric charge of each pixel accumulation is under the video time sequence control, and pointwise moves outward, after filtering, processing and amplifying, form vision signal output; This vision signal is connected to the video inputs of monitor or television machine, just can see the video image identical with original image.Its major advantage has: sharpness, and sensitivity, reliability improves greatly; It is little to distort; In light weight, volume is little; Diamagnetic, anti-vibration, shock resistance, the life-span is long etc.
At present, in actual applications, often need to solve the blur-free imaging problem in the backlight environment; And this technology mainly realizes by automatic gain control and the combination of bias light compensation dual mode at present.
Automatic gain control: all video cameras all have a handle to be amplified to the video amplifier that can use level from the signal of CCD, and its amplification quantity is gain, is equivalent to higher sensitivity, can make it sensitive under low-light; Yet amplifier will transship in the environment of light photograph, make the vision signal distortion.Therefore, need utilize automatic gain control AGC (the Automatic Gain Control) circuit of video camera to remove to survey the level of vision signal, switch AGC in time, thereby video camera can be worked in bigger illumination range, this is dynamic range, promptly when low-light (level), increase the gain of video camera automatically, thereby the intensity that improves picture signal obtains distinct image.
Bias light compensation: usually, the AGC working point of video camera is to determine by the content average treatment to whole visual field, if but comprise a very bright background area and a very dark foreground target (promptly said " backlight environment ") in the visual field, then the AGC working point of determining this moment might be suitable inadequately for foreground target, opens the demonstration situation that bias light compensation might improve foreground target in theory; But when bias light compensation when opening, video camera only averages to determine its AGC working point to a sub regions of whole visual field, if when this moment, foreground target was positioned at this subregion, the visuality of foreground target is expected to improvement on principle so; But in actual applications, foreground target not necessarily is positioned at subregion to situation just often, foreground target moves, or the like; These situations have brought difficulty all for the requirement that utilizes automatic gain control and bias light compensation to solve clear shooting in the backlight environment.Even if use wide dynamic technology can realize the clear shooting of backlight environment, but its dynamic range is still limited, and price is high, so limited the range of application of wide dynamic technique greatly and promote the use of.
Summary of the invention
The objective of the invention is to avoid the deficiencies in the prior art a kind of low cost, low input to be provided, to be easy to realize, easy and simple to handle, be convenient to the video camera light compensating apparatus that is easy to promote is installed.
For achieving the above object, the technical scheme that the present invention takes is: a kind of video camera light compensating apparatus, include housing, and camera base, described housing includes lower house and cap, and cap and lower house flexibly connect; Be provided with cavity in lower house, camera base is arranged in the cavity, also is provided with the light filling plate on the camera base, is provided with at least one infrared lamp on the light filling plate, and the capping of described cap is the tempering filter glass.
When video camera was installed on the camera base, described infrared lamp and video camera were arranged on the same side of light filling plate;
Infrared lamp can be welded on and also can be movably connected on the light filling plate on the light filling plate, such as clamping or be threaded.
The tempering filter glass plays by infrared light, the effect of block visible light.
Further, on the light filling plate of a side that is provided with infrared lamp, be electroplate with at least one layer of silvery white powder.
Further, the thickness of described tempering filter glass is 1～6mm.
Further, described light filling plate is provided with through hole, and described video camera is located in the through hole of light filling plate.
Further, described lower house and cap are to be made by aluminium alloy, and being provided with oxidation processes on lower house and cap surface has matt layer.Lower house and cap also can be made by other materials.
Further, the infrared lamp on the described light filling plate is provided with 6～24, and the radiation angle of infrared lamp is 30～90 degree.Be preferably 60 degree.
Further, on described light filling plate, also be provided with at least one air vent.
Further, described air vent is circumference uniform distribution or symmetrical distribution on the light filling plate.Air vent distributes with other forms and also can.
Further, described lower house is provided with louvre, also is provided with at least one in the outer face of lower house and beats the glue groove, also is provided with screen printing pattern in the outer face of lower house.
Further, described tempering filter glass is provided with screen printing pattern.
The beneficial effects of the utility model are: in the backlight environment, when the strong backlight (visible light) of background passes through filter glass, most visible light is had only the infrared light of wavelength more than 830nm of small part to enter video camera by filtering (the following light percent of pass of 800nm is not higher than 5%).Have the people to stand before video camera, distance is when being no more than 2.5m, and then the infrared light that sends of the infrared lamp on the light filling plate is radiated at this people on the face by filter glass, and again after remarkable face reflects, this infrared light returns into to video camera by filter glass again; Thereby reach the interference of the strong backlight (visible light) that is not subjected in the environment, still can the clear people's of photographing face feature image purpose.Its low cost, low drop into, be easy to realize, easy and simple to handle, be convenient to install, be easy to promote and large-scale application
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is the structural representation of the utility model light filling plate.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
Embodiment 1: as Fig. 1, and Fig. 2, shown in Figure 3, a kind of video camera light compensating apparatus includes housing 1, and camera base 2 is provided with video camera 3 on camera base 2, and described housing 1 includes lower house 11 and cap 12, and cap 12 flexibly connects with lower house 11; Be provided with cavity in lower house 11, camera base 2 is arranged in the cavity, also is provided with light filling plate 4 on the camera base 2, is provided with at least one infrared lamp 5 on light filling plate 4, and infrared lamp 5 and video camera 3 are arranged on the same side of light filling plate 4; The capping of described cap 12 is a tempering filter glass 13, filter glass 13 and described video camera 3 corresponding settings.On the light filling plate 4 of a side that is provided with infrared lamp 5, be electroplate with at least one layer of silvery white powder.The thickness of described tempering filter glass 13 is 2mm.Described light filling plate 4 is provided with through hole, and described video camera 3 is located in the through hole of light filling plate 4.Described lower house 11 and cap 12 are to be made by aluminium alloy, and being provided with oxidation processes on lower house 11 and cap 12 surfaces has matt layer.Infrared lamp 5 on the described light filling plate 4 is provided with 12, and the radiation angle of infrared lamp is 60 degree.On described light filling plate 4, also be provided with at least one air vent 41.Described air vent 41 is to be symmetrically distributed in the centre of light filling plate 4, is circle distribution in the edge of light filling plate 4.Described lower house 11 is provided with louvre 14, also is provided with four in the outer face of lower house 11 and beats the glue groove, also is provided with screen printing pattern in the outer face of lower house 11.The tempering filter glass 13 on described cap surface is provided with screen printing pattern.
During operation, at first video camera 3 is carried out the setting of AGC heavy exposure in advance, debugged lens focus.To light filling plate 4,12 850nm, the infrared lamp of 60 ° of firing angles is according to the preformed hole on the light filling plate, and circumference uniform distribution welds.Filter glass 13 is carried out tempering handle silk-screen cartoon smiling face pattern.To housing 1, machine according to Structural Design Requirement, housing 1 is provided with louvre 14, and housing 1 all surface oxidation treatment makes it have matt effect, and the lower house outer face has four to beat the glue groove, and centre, lower cover outer face silk-screen has pattern.According to the good position of structure card and with the assembling that is threaded, usefulness is threaded in the cavity body of the lower house that is fixed in housing 1 again video camera 3 and light filling plate 4.Filter glass 13 is built in the loam cake 12 of housing 1, the pattern of front silk-screen outwardly.The loam cake 12 of housing 1 is connected with lower house 11 internal and external threads screws, be assembled into complete machine.In four grooves of complete machine lower house 11 outer faces, stamp glue, be pasted on glass before outlet of financial institution (bank) sales counter.To the logical DC12V power supply of going up of complete machine, the attach signal output line gets final product operate as normal.
Embodiment 2: identical with embodiment 1, the infrared lamp that different is on the described light filling plate is provided with 6, and the radiation angle of infrared lamp is 30 degree.The thickness of described tempering filter glass is 2mm.
Embodiment 3: identical with embodiment 1, the infrared lamp that different is on the described light filling plate is provided with 24, and the radiation angle of infrared lamp is 90 degree.The thickness of described tempering filter glass is 6mm.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a video camera light compensating apparatus includes housing, and camera base is characterized in that, described housing includes lower house and cap, and cap and lower house flexibly connect; Be provided with cavity in lower house, camera base is arranged in the cavity, also is provided with the light filling plate on the camera base, is provided with at least one infrared lamp on the light filling plate; The capping of described cap is the tempering filter glass.
2. video camera light compensating apparatus as claimed in claim 1 is characterized in that, is electroplate with at least one layer of silvery white powder on the light filling plate of a side that is provided with infrared lamp.
3. video camera light compensating apparatus as claimed in claim 1 is characterized in that, the thickness of described tempering filter glass is 1～6mm.
4. video camera light compensating apparatus as claimed in claim 1 is characterized in that, described light filling plate is provided with through hole, and described video camera is located in the through hole of light filling plate.
5. video camera light compensating apparatus as claimed in claim 1 is characterized in that described lower house and cap are to be made by aluminium alloy, and being provided with oxidation processes on lower house and cap surface has matt layer.
6. video camera light compensating apparatus as claimed in claim 1 is characterized in that, the infrared lamp on the described light filling plate is provided with 6～24, and the radiation angle of infrared lamp is 30～90 degree.
7. as the arbitrary described video camera light compensating apparatus of claim 1 to 6, it is characterized in that, on described light filling plate, also be provided with at least one air vent.
8. video camera light compensating apparatus as claimed in claim 7 is characterized in that, described air vent is circumference uniform distribution or symmetrical distribution on the light filling plate.
9. as the arbitrary described video camera light compensating apparatus of claim 1 to 6, it is characterized in that described lower house is provided with louvre, also be provided with at least one in the outer face of lower house and beat the glue groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203127704U CN201662673U (en) | 2009-10-19 | 2009-10-19 | Light supplementing device of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203127704U CN201662673U (en) | 2009-10-19 | 2009-10-19 | Light supplementing device of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662673U true CN201662673U (en) | 2010-12-01 |
Family
ID=43233091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203127704U Expired - Fee Related CN201662673U (en) | 2009-10-19 | 2009-10-19 | Light supplementing device of camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902607A (en) * | 2019-12-30 | 2020-03-24 | 未来机器人（深圳）有限公司 | Unmanned forklift and visual recognition device thereof |
| CN112764291A (en) * | 2021-02-08 | 2021-05-07 | 杭州海康威视数字技术股份有限公司 | Video camera |
-
2009
- 2009-10-19 CN CN2009203127704U patent/CN201662673U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902607A (en) * | 2019-12-30 | 2020-03-24 | 未来机器人（深圳）有限公司 | Unmanned forklift and visual recognition device thereof |
| CN112764291A (en) * | 2021-02-08 | 2021-05-07 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN112764291B (en) * | 2021-02-08 | 2022-04-29 | 杭州海康威视数字技术股份有限公司 | Video camera |
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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: 20101201 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |