CN201750487U - Infrared camera with stable image brightness - Google Patents
Infrared camera with stable image brightness Download PDFInfo
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- CN201750487U CN201750487U CN2009202206060U CN200920220606U CN201750487U CN 201750487 U CN201750487 U CN 201750487U CN 2009202206060 U CN2009202206060 U CN 2009202206060U CN 200920220606 U CN200920220606 U CN 200920220606U CN 201750487 U CN201750487 U CN 201750487U
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- camera lens
- infrared camera
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Abstract
The utility model discloses an infrared camera with stable image brightness. The infrared camera comprises a camera lens mounted in the front of the camera, a camera main board used for processing photoelectric signals, an optical filter with central wavelength ranging from 900 to 1000 nm, and an infrared light source of which the emission wavelength is matched with the central wavelength of the optical filter, wherein the infrared light source is arranged on the circumference of the camera lens, and the optical filter is mounted between the camera lens and an image sensor on the camera main board. The camera provided by the utility model has good imaging effect, maintains the stable image brightness in daytime and at night, and is applicable to image analysis and treatment in all-weather and complicated weather environments.
Description
Technical field
The utility model relates to a kind of camera, relates in particular to a kind of infrared camera.
Background technology
At present, the camera of selling on the market has the employing infrared technique mostly, to satisfy the imaging requirements under the dim light situation.But, present camera imaging effect instability, especially when the two class special circumstances that light is very bright or light is very dark occurring, the brightness of image is extremely unstable, imaging results can be bright partially, dark partially or local shade occurs, chat for common video, video conference, application such as video monitoring, such camera can satisfy basic demand, but for the very high intelligent image analysis field of imaging stability requirement, in particular for the vehicle intelligent graphical analysis, the security protection intelligent monitoring, the mobile tracking shooting is first-class, this camera just can't meet the demands, and serious meeting causes misjudgment.
Summary of the invention
The main technical problems to be solved in the utility model is that a kind of infrared camera with stable image brightness is provided.
For solving the problems of the technologies described above, the utility model provides a kind of infrared camera with stable image brightness, comprise: be installed in the infrared light supply that shooting procephalic camera lens, the camera mainboard that is used to handle photosignal, centre wavelength are complementary in the centre wavelength of the filter of 900-1000nm and emission wavelength and filter, described infrared light supply is arranged on the periphery of camera lens, and described filter is installed between the imageing sensor on camera lens and the camera mainboard.
Camera adopts the some infrared light supplies with specific bandwidth to launch light, the camera lens of camera obtains the reflection ray for the treatment of imaging object, and filtering light outside the particular light ray bandwidth with filter, the camera mainboard obtains the light within the particular light ray bandwidth and carries out imaging.The utility model camera imaging effect is good, no matter day and night, all keeps stable image brightness, is suitable for the image analysis processing under the round-the-clock and complicated weather environment.
Description of drawings
Fig. 1 is the camera structure figure among a kind of embodiment of the utility model.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by embodiment.
Please refer to Fig. 1, infrared camera comprises camera lens 1, filter 2, illuminating source 4, lamp plate 5, camera mainboard 6, shell 7, camera power line and video signal cable 8 etc.The camera lens 1 of camera is installed in the camera front portion, can regulate distance of camera lens by the screw socket rotation mode, do not interspace between camera lens and head shell, camera lens can adopt optics single board computer camera lens, has the specification that satisfies imaging requirements, interface mode, focal length, aperture, the angle of visual field, parameter such as image-forming range recently.Filter 2 is installed between camera lens 1 and the camera mainboard epigraph transducer, and is positioned at the front end of camera mainboard epigraph transducer, so that imageing sensor receives the light signal that filter sees through.Filter adopts the single-pass narrow band pass filter, has parameters such as centre wavelength that satisfying filters requires, centre wavelength transmitance, peak transmittance, half-band width, cutoff rate.The centre wavelength of filter is 900nm-1000nm, and preferred centre wavelength is 910nm-970nm, for example 940nm.Centre wavelength transmitance＞the 85%-95% of filter, peak transmittance＞85%-95%, half-band width 10nm-50nm, cutoff rate T＜0.01%-1%, thickness 2mm-8mm.Infrared light supply is connected on the lamp plate, stretches out from camera front shell hole, is distributed in the periphery of camera lens.Infrared light supply is a plurality of infrared, have parameters such as the pipe pressure that satisfies luminous requirement, operating current, emission wavelength, lighting angle, lamp wall radius, be evenly distributed on the periphery of camera lens, the centre wavelength of its emission wavelength and filter is complementary, the emission wavelength that is infrared light supply is consistent with the centre wavelength of filter, so that filter only sees through the light of this wave band.Lamp plate can adopt two-sided pcb board, is reserved with the interface of several infrarede emitting diodes on it.The camera mainboard comprises digital signal processing chip, imageing sensor etc., and wherein digital signal processing chip can adopt the high-definition image process chip.The power line of camera can be given lamp plate and camera main board power supply simultaneously.The fixed interface place of shell and lamp plate and camera mainboard can adopt the damping screw socket, fixation, and have antihunt action.
The camera lens of camera is accepted the Infrared of target object reflection, and the mating plate processing that filters after filtration.The filter and the infrarede emitting diode of camera are complementary, and filter can filter out the light beyond the infrarede emitting diode wavelength bandwidth, keep the infrarede emitting diode wavelength bandwidth with interior light.By the cooperation of infrarede emitting diode and filter, the realization camera is made a video recording under environment with dark light.
In order to prevent light leak, to improve image quality, in another embodiment, camera also comprises filter guard circle 3, and as shown in Figure 1, filter guard circle 3 is installed in the periphery of filter 2, in order to prevent the peripheral light leak of filter.
The filter and the infrarede emitting diode of camera are complementary, and filter can filter out the light beyond the infrarede emitting diode wavelength bandwidth, keep the infrarede emitting diode wavelength bandwidth with interior light.By adopting emission wavelength is that 900-1000nm scope infrared light supply and centre wavelength are the filter of 900-1000nm, and infrared light supply and filter are matched, and for example, the centre wavelength of filter is 940nm, and the emission wavelength of infrared light supply also is 940nm.The negative effect of the part infrared wavelength of natural daylight and the infrared wavelength mutual superposition of infrared light supply is very little, even can ignore, and the brightness of image in camera daytime and evening is relatively stable.When frequent variations appears in the light intensity of natural daylight, can guarantee the stability of camera brightness of image.
Camera of the present utility model can be used for the very high intelligent image analysis field of imaging stability requirement, in particular for vehicle intelligent graphical analysis, security protection intelligent monitoring, the mobile tracking first-class field of making a video recording.
Above content be in conjunction with concrete execution mode to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (7)
1. infrared camera with stable image brightness, comprise the camera mainboard that is installed in the procephalic camera lens of shooting and is used to handle photosignal, it is characterized in that also comprising: the infrared light supply that centre wavelength is complementary in the centre wavelength of the filter of 900-1000nm and emission wavelength and filter, described infrared light supply is arranged on the periphery of camera lens, and described filter is installed between the imageing sensor on camera lens and the camera mainboard.
2. infrared camera as claimed in claim 1 is characterized in that, the centre wavelength of described filter is 910-970nm.
3. infrared camera as claimed in claim 2 is characterized in that, described filter is the single-pass narrow band pass filter, and the centre wavelength of described filter is 940nm.
4. infrared camera as claimed in claim 3 is characterized in that, the centre wavelength transmitance of described filter is greater than 85%, and peak transmittance is greater than 85%, and half-band width is 10-50nm, and cutoff rate is less than 1%.
5. infrared camera as claimed in claim 3 is characterized in that the emission wavelength of described infrared light supply is 940nm.
6. infrared camera as claimed in claim 1 is characterized in that, described infrared light supply is a plurality of light-emitting diodes, and described a plurality of light-emitting diodes are evenly distributed on the camera lens periphery.
7. as each described infrared camera in the claim 1 to 6, it is characterized in that also comprise the filter guard circle, described filter guard circle is installed in the filter periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202206060U CN201750487U (en) | 2009-10-30 | 2009-10-30 | Infrared camera with stable image brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202206060U CN201750487U (en) | 2009-10-30 | 2009-10-30 | Infrared camera with stable image brightness |
Publications (1)
| Publication Number | Publication Date |
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| CN201750487U true CN201750487U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202206060U Expired - Fee Related CN201750487U (en) | 2009-10-30 | 2009-10-30 | Infrared camera with stable image brightness |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997610A (en) * | 2014-04-30 | 2014-08-20 | 辽宁卓异装备制造股份有限公司 | Night-vision camera device and focusing method thereof |
| CN104660896A (en) * | 2015-02-06 | 2015-05-27 | 福建福特科光电股份有限公司 | Camera shooting method and device of day and night lens without IR-Cut (infrared-cut) switcher |
| CN104848800A (en) * | 2015-06-17 | 2015-08-19 | 中国地质大学（武汉） | Multi-angle three dimensional imaging apparatus based on line laser scanning |
| CN109697422A (en) * | 2018-12-19 | 2019-04-30 | 深圳市瑞立视多媒体科技有限公司 | Optics motion capture method and optics motion capture cameras |
-
2009
- 2009-10-30 CN CN2009202206060U patent/CN201750487U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997610A (en) * | 2014-04-30 | 2014-08-20 | 辽宁卓异装备制造股份有限公司 | Night-vision camera device and focusing method thereof |
| CN104660896A (en) * | 2015-02-06 | 2015-05-27 | 福建福特科光电股份有限公司 | Camera shooting method and device of day and night lens without IR-Cut (infrared-cut) switcher |
| CN104660896B (en) * | 2015-02-06 | 2017-12-29 | 福建福特科光电股份有限公司 | Exempt from the image capture method and device of the day and night type camera lens of IR Cut switch |
| CN104848800A (en) * | 2015-06-17 | 2015-08-19 | 中国地质大学（武汉） | Multi-angle three dimensional imaging apparatus based on line laser scanning |
| CN109697422A (en) * | 2018-12-19 | 2019-04-30 | 深圳市瑞立视多媒体科技有限公司 | Optics motion capture method and optics motion capture cameras |
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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: 20110216 Termination date: 20151030 |
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| EXPY | Termination of patent right or utility model |