CN106454052A - Double-band trapped wave camera module and method for acquiring image with same - Google Patents
Double-band trapped wave camera module and method for acquiring image with same Download PDFInfo
- Publication number
- CN106454052A CN106454052A CN201610998541.7A CN201610998541A CN106454052A CN 106454052 A CN106454052 A CN 106454052A CN 201610998541 A CN201610998541 A CN 201610998541A CN 106454052 A CN106454052 A CN 106454052A
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- China
- Prior art keywords
- light
- biobelt
- camera module
- cmos sensor
- narrow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Abstract
The invention provides a double-band trapped wave camera module and a method for acquiring an image with same. The double-band trapped wave camera module comprises a complementary metal-oxide-semiconductor (CMOS) and a lens group, wherein double-band trapped wave filtering pieces are arranged at the rear end of the lens group and the front end of the CMOS. According to the double-band trapped wave camera module and the method for acquiring the image with same, as the double-band trapped wave filtering pieces are added, the image can be acquired under a long illumination situation by using the camera module, the reliability of a system is not affected, and the cost can be effectively lowered.
Description
Technical field
The present invention relates to photographic head technical field, more particularly to a kind of biobelt trap camera module and adopted using the module
The method of collection image.
Background technology
Traditional camera module, carries out image procossing using cmos sensor, but, cmos sensor is to visible light wave
Section and the infrared band beyond visible light part can all produce reaction so that photographic head is produced bright by the image that camera lens is gathered
Aobvious colour cast is obvious with the state difference of actual object.
In order to solve the problems, such as infrared light to camera module interference, in one tablet filter of lens group rear end increase, so that
Light beyond visible ray, such as infrared light are filtered out, it is ensured that the image of collection is consistent with color in kind.But, low
In the case of illumination, take pictures in order to hidden, infrared illumination is generally adopted, optical filter now has just become obstruction, this when
Generally remove optical filter using mechanical system to realize the image acquisition under low-light (level).However, mechanical system removes optical filter certainly
Can so introduce the mechanical part that impact is produced on system reliability, because the introducing of mechanical part so that camera module system
Response speed and power consumption be all affected.
Content of the invention
For this purpose, the technical problem to be solved is：There is provided a kind of biobelt trap camera module and using the mould
The method of group collection image so that the camera module not only can gather image in low light situations, and not have an effect on
The reliability of system, effectively reduces cost.
Then, the invention provides a kind of biobelt trap camera module, including cmos sensor and lens group, wherein,
In lens group rear end, cmos sensor front end, one biobelt notch filtering light piece is set.
Further, above-mentioned biobelt trap camera module, also includes one with narrow-band spectrum in low-light (level) situation
The lower infrared LED lamp as supplementary light source.
Wherein, the cmos sensor under normal illumination is color mode, and the cmos sensor under low-light (level) is white-black pattern.
Present invention also offers a kind of gather image method using biobelt trap camera module, including：
It is color mode cmos sensor to be arranged under normal illumination, is white-black pattern under low-light (level)；
Under normal illumination, lens group rear end is arranged on, the biobelt notch filtering light piece of cmos sensor front end passes through visible ray and narrow
The infrared light of band spectrum, and be imaged on cmos sensor；
Under low-light (level), the biobelt notch filtering light piece of lens group rear end, cmos sensor front end is arranged on through the red of narrow-band spectrum
Outer light, and be imaged on cmos sensor.
Further, the method for above-mentioned collection image, also includes：
Under low-light (level), with narrow-band spectrum for opening as the infrared LED lamp for supplementing light source in low light situations,
Illumination is provided for obtaining image.
Also include：It is that the image for collecting under normal illumination carries out white balance parameter adjustment, red to reduce narrow-band spectrum
Impact of the outer light to image aberration.
Biobelt trap camera module of the present invention and the method for gathering image using the module, are fallen into by setting up biobelt
The mode of ripple optical filter so that the camera module not only can gather image in low light situations, but also do not affect be
The reliability of system, effectively reduces cost.
Description of the drawings
Fig. 1 is the structural representation of biobelt trap camera module described in the embodiment of the present invention；
Fig. 2 passes through rate response curve for the light intensity of biobelt trap camera module shown in Fig. 1.
Specific embodiment
Below, describe the present invention in conjunction with accompanying drawing.
As shown in figure 1, a kind of biobelt trap camera module is present embodiments provided, including cmos sensor 1 and camera lens
Group 2, wherein, is additionally provided with a biobelt notch filtering light piece 3 in 2 rear end of lens group, 1 front end of cmos sensor.
In order to obtain the effect of image in the case of increasing low-light (level), above-mentioned biobelt trap camera module can also be further
Including one with narrow-band spectrum in low light situations as the infrared LED lamp 4 for supplementing light source.
Wherein, under normal illumination, cmos sensor 1 is set to color mode, under low-light (level), cmos sensor 1 is arranged
For white-black pattern.
Under normal illumination, not only there is visible ray, but also there are infrared portions, be that this part of infrared light is double
It is limited in smaller bandwidth with notch filtering light piece 3, cmos sensor 1 now is imaged also and can be subject to the part infrared light
Affect and colour cast is produced, on software, image is processed by the later stage, this part infrared light supply can be reduced to image
Impact.
Under low-light (level), infrared LED lamp 4 is turned on, the light source falls just in this infrared arrowband, this arrowband maximum
The luminous energy launched by the guarantee light source of limit returns photographic head.The bandwidth of the light source meet biobelt notch filtering light piece 3 by band
Width, ensure that the reflected light of object is as far as possible many and is imaged on cmos sensor 1 by lens group 2.While we are CMOS
White-black pattern is set to, because human eye is to colored and insensitive in the case of low-light (level).
The present embodiment additionally provides one kind and gathers image method using above-mentioned biobelt trap camera module, including：
It is color mode cmos sensor to be arranged under normal illumination, is white-black pattern under low-light (level)；
Under normal illumination, lens group rear end is arranged on, the biobelt notch filtering light piece of cmos sensor front end passes through visible ray and narrow
The infrared light of band spectrum, and be imaged on cmos sensor；
Under low-light (level), the biobelt notch filtering light piece of lens group rear end, cmos sensor front end is arranged on through the red of narrow-band spectrum
Outer light, and be imaged on cmos sensor.
Further, said method, also includes：
Under low-light (level), with narrow-band spectrum for opening as the infrared LED lamp for supplementing light source in low light situations,
Illumination is provided for obtaining image.
Also include：It is that the image for collecting under normal illumination carries out white balance parameter adjustment, red to reduce narrow-band spectrum
Impact of the outer light to image aberration.
Biobelt in biobelt trap camera module described in the present embodiment, refers to visible ray and the two frequency bands of infrared light.
Wherein, notch filtering light piece, generally also referred to as band hinders or band inhibition filter.It can pass through most wavelength, but
By in particular range of wavelengths（Stopband）Light decay reduce to extremely low level.
The light intensity of above-mentioned biobelt trap camera module is illustrated in figure 2 by rate response curve, wherein vertical pivot represents light
Strong percent of pass, transverse axis represents the wavelength of light source.
In sum, biobelt trap camera module described in the embodiment of the present invention and the side using module collection image
Method, by way of setting up biobelt notch filtering light piece so that the camera module not only can gather figure in low light situations
Picture, but also the reliability of system is not affected, effectively reduce cost.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement that is made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of biobelt trap camera module, including cmos sensor and lens group, it is characterised in that lens group rear end,
Cmos sensor front end arranges a biobelt notch filtering light piece.
2. biobelt trap camera module according to claim 1, it is characterised in that also include with narrow-band spectrum
For in low light situations as the infrared LED lamp for supplementing light source.
3. the biobelt trap camera module according to claims 1 or 2, it is characterised in that the CMOS under normal illumination
Sensor is color mode, and the cmos sensor under low-light (level) is white-black pattern.
4. a kind of using biobelt trap camera module collection image method, it is characterised in that to include：
It is color mode cmos sensor to be arranged under normal illumination, is white-black pattern under low-light (level)；
Under normal illumination, lens group rear end is arranged on, the biobelt notch filtering light piece of cmos sensor front end passes through visible ray and narrow
The infrared light of band spectrum, and be imaged on cmos sensor；
Under low-light (level), the biobelt notch filtering light piece of lens group rear end, cmos sensor front end is arranged on through the red of narrow-band spectrum
Outer light, and be imaged on cmos sensor.
5. according to claim 4 collection image method, it is characterised in that also include：
Under low-light (level), with narrow-band spectrum for opening as the infrared LED lamp for supplementing light source in low light situations,
Illumination is provided for obtaining image.
6. according to claim 4 collection image method, it is characterised in that also include：It is to gather under normal illumination
To image carry out white balance parameter adjustment, to reduce impact of the narrow-band spectrum infrared light to image aberration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998541.7A CN106454052A (en) | 2016-11-14 | 2016-11-14 | Double-band trapped wave camera module and method for acquiring image with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998541.7A CN106454052A (en) | 2016-11-14 | 2016-11-14 | Double-band trapped wave camera module and method for acquiring image with same |
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| CN106454052A true CN106454052A (en) | 2017-02-22 |
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| CN201610998541.7A Pending CN106454052A (en) | 2016-11-14 | 2016-11-14 | Double-band trapped wave camera module and method for acquiring image with same |
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Cited By (4)
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|---|---|---|---|---|
| CN106713878A (en) * | 2017-03-24 | 2017-05-24 | 陈兵 | Novel image sensor |
| CN106791343A (en) * | 2017-03-28 | 2017-05-31 | 深圳市石代科技有限公司 | Camera head and system |
| CN107613173A (en) * | 2017-09-30 | 2018-01-19 | 杭州雄迈集成电路技术有限公司 | A kind of dual camera imaging acquisition system |
| CN107959776A (en) * | 2017-11-28 | 2018-04-24 | 信利光电股份有限公司 | A kind of depth camera device and electronic equipment |
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| TWM524478U (en) * | 2016-01-05 | 2016-06-21 | 正崴精密工業股份有限公司 | Camera modules with dual band spectrum |
| CN105763774A (en) * | 2016-02-29 | 2016-07-13 | 联想(北京)有限公司 | Camera module, electronic device and image acquisition method |
| CN205666883U (en) * | 2016-03-23 | 2016-10-26 | 徐鹤菲 | Support compound imaging system and mobile terminal of formation of image of near infrared and visible light |
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| US20050023465A1 (en) * | 2003-07-30 | 2005-02-03 | Helmuth Eggers | Device for improving visibility in motor vehicles |
| CN102075683A (en) * | 2009-11-20 | 2011-05-25 | 三星电子株式会社 | Digital image processing apparatus and photographing method of digital image processing apparatus |
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| CN106713878A (en) * | 2017-03-24 | 2017-05-24 | 陈兵 | Novel image sensor |
| CN106791343A (en) * | 2017-03-28 | 2017-05-31 | 深圳市石代科技有限公司 | Camera head and system |
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Application publication date: 20170222 |
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