CN101515055A - CCD fine motion device of infrared night-vision all-in-one machine - Google Patents
CCD fine motion device of infrared night-vision all-in-one machine Download PDFInfo
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- CN101515055A CN101515055A CNA2008100722464A CN200810072246A CN101515055A CN 101515055 A CN101515055 A CN 101515055A CN A2008100722464 A CNA2008100722464 A CN A2008100722464A CN 200810072246 A CN200810072246 A CN 200810072246A CN 101515055 A CN101515055 A CN 101515055A
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- inching gear
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Abstract
The invention relates to a CCD fine motion device of an infrared night-vision all-in-one machine. The CCD fine motion device comprises a lens and CCD; a fine motion device matched with the CCD drives the CCD to do fine motion; in the fine motion device, an optical sensing circuit senses the ray change and transmits a changed signal to a signal processing circuit; the signal processing circuit transmits the signal to a fine motion drive circuit; the fine motion drive circuit drives the fine motion device to act and drive the CCD to do fine motion; the fine motion device can be a piezoelectric ceramic fine motion device or an electromagnetic fine motion device; a CCD fine motion method is adopted to solve the problem of different imaging positions caused by different frequencies of infrared ray and white light so as to influence the definition of an image; therefore, the image can always keep being imaged on the CCD so as to achieve the same clear effect of the image in daytime and nighttime.
Description
Technical field:
The invention belongs to technical field of security and protection, relate to a kind of infrared night vision all-in-one, especially relevant with the CCD inching gear of infrared night vision all-in-one.
Background technology:
Infrared night vision all-in-one on the market adopts the mode of single-lens fixed-focus mostly, the shortcoming of this type of video camera maximum is that the sharpness at daytime and night is different, the also sharpness at night is undesirable, its main cause is the defective that designs, its principle of work and flow process are as shown in Figure 1, wherein 1 is camera lens, and 2 is CCD, must regulate camera lens 1 and makes it to be imaged on 21 places on the CCD in order to obtain distinct image.In process of production, can only white light be light source the basis focus.But when night, light source transfers the ultrared frequency of infrared ray (wavelength 880nm) to and is starkly lower than white light.To the refractive index difference with a kind of medium light, and the little principle of the refractive index of frequency low light when being light source with infrared ray, will not accumulate in 21 places with object image-forming according to different frequency, but in 22 positions of the back of CCD.Obviously, such night vision image sharpness just reduces greatly.If is that light source is harmonized and assembled with the infrared ray, be not difficult to release that to obtain during for light source at white light be unsharp image.This is the principle defective that this type of machine exists.
Summary of the invention:
The objective of the invention is to overcome above-mentioned contradiction of the prior art, allow infrared night vision one function can both obtain distinct image night by day.
For reaching above-mentioned purpose, the present invention adopts following technical scheme:
The CCD inching gear of infrared night vision all-in-one comprises camera lens and CCD, cooperates with described CCD to be provided with inching gear drive CCD fine motion.
Described inching gear is changed by light sensing circuit induction light and variable signal is reached signal processing circuit, and signal processing circuit reaches fine motion with signal and promotes circuit, and fine motion promotes circuit and drives the inching gear action and drive the CCD fine motion.
Described inching gear is the piezoelectric ceramics inching gear, and described CCD is fixed on the piezoelectric ceramic piece, and piezoelectric ceramic piece connects fine motion and promotes circuit.
Described inching gear is the electromagnetism inching gear, and described CCD is fixed on the flexure strip, and this flexure strip connects a coil, and coil cooperates with a magnet in addition, and magnet connects fine motion and promotes circuit.
Adopt technique scheme, thereby the present invention adopts the method solution of CCD fine motion to cause the different problems that influence the sharpness of image of image space owing to infrared ray is different with the white light frequency, it specifically adopts to cooperate with CCD and is provided with an inching gear, thereby promote circuit by fine motion and drive inching gear action drive CCD fine motion, make image energy keep being imaged on all the time on the CCD, reach daytime and image at night effect equally clearly.
Description of drawings:
Fig. 1 is a prior art fundamental diagram of the present invention;
Fig. 2 is a workflow diagram of the present invention;
Fig. 3 is a fundamental diagram of the present invention;
Fig. 4 is the structural drawing of piezoelectric ceramics fine motion method of the present invention;
Fig. 5 is an electromagnetism microfarad structural drawing of the present invention;
Fig. 6 is the assembly drawing of electromagnetism fine motion method of the present invention.
Embodiment:
Below in conjunction with drawings and Examples the present invention is described in further detail.
Consult Fig. 2-shown in Figure 6, the CCD inching gear of infrared night vision all-in-one, it comprises camera lens 1 and CCD2, cooperates with described CCD2 to be provided with an inching gear and to drive the CCD fine motion.
Its workflow as shown in Figure 2, described inching gear is changed by light sensing circuit 4 induction light and variable signal is reached signal processing circuit 5, signal processing circuit 5 reaches fine motion with signal and promotes circuit 6, and fine motion promotes circuit 6 and drives inching gear 3 actions and drive the CCD2 fine motion.Its principle of work as shown in Figure 3, inching gear 3 action drives CCD from 21 fine motion to 22 places, is imaged on 22 places when guaranteeing infrared light sources.
In practice process, inching gear can adopt the piezoelectric ceramics inching gear, and its principle adds that according to piezoelectric ceramics voltage has these characteristics of fine motion, as shown in Figure 4, described CCD2 is fixed on the piezoelectric ceramic piece 31, and piezoelectric ceramic piece 31 connects fine motion and promotes circuit 6.During work, light sensing circuit 4 induction light change and variable signal are reached signal processing circuit 5, signal processing circuit 5 reaches fine motion with signal and promotes circuit 6, fine motion promotes circuit 6 making alives and gives piezoelectric ceramic piece, have the characteristics of variation in thickness and drive CCD2 fine motion fixed thereon after the piezoelectric ceramic piece pressurization, it is moved at 21 and 22 places.
Inching gear also can adopt the electromagnetism inching gear, and described CCD2 is fixed on the flexure strip 32, and this flexure strip 32 connects a coil 33, and coil 33 cooperates with a magnet 34 in addition, and magnet 34 connects fine motion and promotes circuit 6.During work, light sensing circuit 4 induction light change and variable signal are reached signal processing circuit 5, signal processing circuit 5 reaches fine motion with signal and promotes circuit 6, fine motion promotes circuit 6 and drives magnet 33 and coil 32 suction foldings, drive CCD2 fine motion fixed thereon, it is moved at 21 and 22 places.
Adopt technique scheme; thereby the present invention adopts the method solution of CCD fine motion to cause the different problems that influence the sharpness of image of image space owing to infrared ray is different with the white light frequency; it specifically adopts to cooperate with CCD and is provided with an inching gear; thereby promote circuit by fine motion and drive inching gear action drive CCD fine motion; make image energy keep being imaged on the CCD all the time; reach daytime and image at night effect equally clearly; in the dual mode in the practice; the piezoelectric ceramics method is simple in structure; but the fine motion amount is little; control is linear poor; electromagnetism fine motion method fine motion amount is controlled well greatly; but complex structure can be selected above-mentioned other similar mode of two kinds of diverse ways according to different needs in practice, can drive the CCD fine motion and promptly belongs to the scope of protection of the invention as long as satisfy.The present invention is used for automatic fine tuning, makes all-in-one realize the dynamic aggregating state, improves the quality of machine.
Claims (4)
1, the CCD inching gear of infrared night vision all-in-one comprises camera lens and CCD, it is characterized in that: cooperate with described CCD to be provided with inching gear drive CCD fine motion.
2, the CCD inching gear of infrared night vision all-in-one as claimed in claim 1, it is characterized in that: described inching gear is changed by light sensing circuit induction light and variable signal is reached signal processing circuit, signal processing circuit reaches fine motion with signal and promotes circuit, and fine motion promotes circuit and drives the inching gear action and drive the CCD fine motion.
3, the CCD inching gear of infrared night vision all-in-one as claimed in claim 1 or 2 is characterized in that: described inching gear is the piezoelectric ceramics inching gear, and described CCD is fixed on the piezoelectric ceramic piece, and piezoelectric ceramic piece connects fine motion and promotes circuit.
4, the CCD inching gear of infrared night vision all-in-one as claimed in claim 1 or 2, it is characterized in that: described inching gear is the electromagnetism inching gear, and described CCD is fixed on the flexure strip, and this flexure strip connects a coil, coil cooperates with a magnet in addition, and magnet connects fine motion and promotes circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100722464A CN101515055A (en) | 2008-12-01 | 2008-12-01 | CCD fine motion device of infrared night-vision all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100722464A CN101515055A (en) | 2008-12-01 | 2008-12-01 | CCD fine motion device of infrared night-vision all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101515055A true CN101515055A (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100722464A Pending CN101515055A (en) | 2008-12-01 | 2008-12-01 | CCD fine motion device of infrared night-vision all-in-one machine |
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| CN (1) | CN101515055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544232A (en) * | 2016-06-27 | 2018-01-05 | 诺基亚技术有限公司 | Holographic imaging apparatus and method and holographic microscope system and method |
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2008
- 2008-12-01 CN CNA2008100722464A patent/CN101515055A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544232A (en) * | 2016-06-27 | 2018-01-05 | 诺基亚技术有限公司 | Holographic imaging apparatus and method and holographic microscope system and method |
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Open date: 20090826 |