CN103700678B - A kind of liquid crystal base electricity adjusts spatial resolution full color imaging detection chip - Google Patents
A kind of liquid crystal base electricity adjusts spatial resolution full color imaging detection chip Download PDFInfo
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Abstract
The invention discloses a kind of liquid crystal base electricity and adjust spatial resolution full color imaging detection chip, comprise ceramic package, metallic support and heating panel, drive control and image pre-processing module, face battle array full color imaging detector, and face battle array electrically-controlled liquid crystal lenticule, drive control and image pre-processing module, face battle array full color imaging detector, and face battle array electrically-controlled liquid crystal lenticule is arranged in ceramic package, ceramic package rear portion is fixedly installed on metallic support and heating panel top, drive control and image pre-processing module is fixedly installed on ceramic package rear portion and metallic support and heating panel junction, face battle array full color imaging detector is set in parallel in and drives control and image pre-processing module top, face battle array electrically-controlled liquid crystal lenticule is set in parallel in battle array full color imaging detector top, face.Compact conformation of the present invention, easy to use, covering visible light spectral coverage, and there is the spatial resolution of electric tune face battle array full color imaging detector, certainty of measurement is high, target and environment adaptability is good feature.
Description
Technical field
The invention belongs to imaging detection technical field, more specifically, relate to a kind of liquid crystal base electricity and adjust spatial resolution full color imaging detection chip.
Background technology
In the last few years, large face battle array full color imaging Detection Techniques, were applied widely in military and civilian field, its huge market capacity and wide commercial promise, promoted continuous advancement and the development of this technology.At present, along with optical imagery observation, remote sensing, supervision, navigation, the developing rapidly of guidance and image information technology, under complex background environment, efficient detection, obtain, identify and process image object technology, receive extensive concern and attention.Under the new ideas of development, new theory and new method support, the light-sensitive array scale of full color imaging sniffer is at continuous enlargement, the photoelectric sensitivity of light-sensitive material is in further lifting, physical dimension and quality are also in rapid reduction, just walk abreast or sequential modulation towards having many spatial resolutions, local high spatial resolution solidifies with the covert compatibility of peripheral space resolution victory or switches fast, to the target in false, camouflage, hiding, stealthy, deception, antagonism or complex background environment, there is the future development of strong discovery and identification capability.
Up to now, in the detection of many spatial resolutions Integral imaging, take the U.S. as main flow device or the equipment of Typical Representative, main employing has the imaging device concurrent working of different resolution, the multiresolution photosensor chip of aperture beam splitting type is worked in coordination with altogether, the hybrid chip be spliced into by different array scale photosensor chip under being placed in same optics framework is parallel extracts image information, realized the imaging detection of sequential or space-variant spatial resolution by complicated optical system, adopt the modes such as the varifocal optical system of great dynamic range to work.In addition, based on many spatial resolution integration measures of integrated micronano optical, such as to light-sensitive device coupling binary diffraction structure, microprism and wedge, Fourier transform assembly, the methods such as holography, diffraction or interference beam-splitting structure, also in fast development.
Many spatial resolutions Integral imaging detection framework as above, what all need configuration complex precise raises clothes, driving or sweep mechanism.Volume and the quality of equipment are relatively large, and response speed is low, and the change-over time between different resolution mode is long, and reliability is difficult to significantly promote.Responsive to the monkey wrench in transport, lift-off, high-speed motion or adverse circumstances, also there is requisite Mechanical Moving link in some, be not suitable for fast or the dynamic object of rapid change or scene, imaging performance is relatively limited, and this situation is difficult to the breakthrough having matter in a short time.In other words, its defect or deficiency are mainly reflected in the volume of photoelectric imaging device, quality, power consumption, concurrency, switch speed, the complexity of auxiliary system and reliability, and the aspect such as targeted cache motion or environmental suitability.How to realize miniaturized even dexterous many spatial resolutions Integral imaging detection, by theories such as modern micronano optical, photoelectricity and chip electronic, incorporate in the full color imaging framework of integration, realize that multiresolution imaging pattern is compatible, parallel model or switchable dexterity detection, in modern efficient energy optical imaging field, there is extensive and urgent demand.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of liquid crystal base electricity and adjust spatial resolution full color imaging detection chip, its object is to the spatial resolution realizing automatically controlled modulation target image, and possess covering visible light spectral coverage, range of dynamic measurement is large, certainty of measurement is high, target and good environmental adaptability, volume and quality are little, easily mate with other optical/optoelectronic/mechanical structure the feature be coupled.
For achieving the above object, according to one aspect of the present invention, provide a kind of liquid crystal base electricity and adjust spatial resolution full color imaging detection chip, comprise ceramic package, metallic support and heating panel, drive control and image pre-processing module, face battle array full color imaging detector, and face battle array electrically-controlled liquid crystal lenticule, drive control and image pre-processing module, face battle array full color imaging detector, and face battle array electrically-controlled liquid crystal lenticule is arranged in ceramic package, ceramic package rear portion is fixedly installed on metallic support and heating panel top, drive control and image pre-processing module is fixedly installed on ceramic package rear portion and metallic support and heating panel junction, face battle array full color imaging detector is set in parallel in and drives control and image pre-processing module top, face battle array electrically-controlled liquid crystal lenticule is set in parallel in battle array full color imaging detector top, face, and by the perforate of ceramic package face by out exposed for its light entrance face, drive control and image pre-processing module, face battle array full color imaging detector, and the coaxially order setting of face battle array electrically-controlled liquid crystal lenticule, face battle array electrically-controlled liquid crystal lenticule comprises M × N number of unit microlens, wherein M and N is positive integer, face battle array full color imaging detector is divided into M × N number of sub-face battle array full color imaging detector, the quantity of this sub-area array infrared detector is identical with lenticular quantity in the battle array electrically-controlled liquid crystal lenticule of face, every height face battle array full color imaging detector comprises P × Q photosensitive unit, wherein P and Q is positive integer, face battle array electrically-controlled liquid crystal lenticule is for receiving the infrared light from target outgoing, and this infrared light is converged in the photosensitive unit of correspondence of different sub-faces battle array full color imaging detector in the battle array full color imaging detector of face, drive control and image pre-processing module for provide for face battle array full color imaging detector drive and adjustment signal, photosensitive unit is the signal of telecommunication for performing opto-electronic conversion to infrared light under the effect of driving and adjustment signal, and this signal of telecommunication is sent to drive control and image pre-processing module, drive control and image pre-processing module also for carrying out preliminary treatment to the signal of telecommunication, with image data generating, and this view data is exported.
Preferably, infrared light from diverse location is converged on different sub-face battle array full color imaging detectors by unit microlens, from diverse location but the infrared light being in equidirectional converged in the photosensitive unit at same position place in the battle array full color imaging detector of different sub-faces by unit microlens.
Preferably, control is driven and image pre-processing module carries out preliminary treatment employing to the signal of telecommunication is asymmetric correction method.
Preferably, the side of ceramic package is provided with drives control signal output port, control is driven and image pre-processing module is supplied to driving and the adjustment signal of face battle array full color imaging detector for exporting, the side of ceramic package is provided with the first indicator light, the connection of this lamp drives control for display and image pre-processing module is in normal operating conditions, the side of ceramic package is provided with detector and drives control signal input port, for driving and the adjustment signal of input face battle array full color imaging detector, the side of ceramic package is provided with the second indicator light, this lamp is connected and is in normal operating conditions for display surface battle array full color imaging detector.
The side of ceramic package is provided with lenticule and drives control signal input port, for the lenticular driving of input face battle array electrically-controlled liquid crystal and adjustment signal;
The side of ceramic package is provided with the 3rd indicator light, and this lamp is connected and is in normal operating conditions for display surface battle array electrically-controlled liquid crystal lenticule.
Preferably, the bottom surface of ceramic package is provided with photoelectric measurement signal output port, for the photoelectric respone signal of output face battle array full color imaging detector, the bottom surface of ceramic package is provided with the 4th indicator light, this lamp is connected and is in normal signal output state for display surface battle array full color imaging detector, the bottom surface of ceramic package is provided with the input of photoelectric respone signal and full-colour image data-out port, for control and image pre-processing module are driven in the input of the photoelectric respone signal of full color imaging detector, and by full-colour image data from driving control and image pre-processing module output, the bottom surface of ceramic package is provided with the 5th indicator light, the connection of this lamp drives control for display and image pre-processing module is in normal data output state.
Preferably, the side of ceramic package is provided with power port, and for accessing power line to be connected with external power source, the side of ceramic package is provided with the 6th indicator light, and this lamp is connected and connected for display power supply.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1, spatial resolution can be adjusted by electricity, owing to passing through coupling surface battle array electrically-controlled liquid crystal lenticule and face battle array full color imaging detector, be embodied as the automatically controlled modulation of picture detector array scale and corresponding spatial resolution, so the present invention has the advantage that electricity adjusts single-chip Spatial resolution;
2, certainty of measurement is high, and because the present invention adopts face battle array electrically-controlled liquid crystal lenticule and face battle array full color imaging detector, they all have high array scale and mixed integrated and have high structural stability, so the present invention has the high advantage of certainty of measurement;
3, range of dynamic measurement is large, and owing to present invention employs the face battle array electrically-controlled liquid crystal lenticule of Jiao's length and clear aperature electricity modulation, it has the feature of dynamic zoom and electricity tune spatial resolution, so the present invention has the large advantage of range of dynamic measurement.
4, target and good environmental adaptability, can the face battle array electrically-controlled liquid crystal lenticule of electric modulation owing to present invention employs optical property, environmentally can carry out Fast transforms with target conditions to incident light wave, so the present invention has the advantage of target and good environmental adaptability.
5, easy to use, owing to present invention employs integrated battle array electrically-controlled liquid crystal lenticule, face battle array full color imaging detector and driving the control architectural framework such with pretreatment module, patch conveniently so the present invention has, the advantage be easily coupled with optical system, other electronics and mechanical device.
Accompanying drawing explanation
Fig. 1 is the structural representation that liquid crystal base of the present invention electricity adjusts spatial resolution full color imaging detection chip.
Fig. 2 is the principle schematic that liquid crystal base of the present invention electricity adjusts spatial resolution full color imaging detection chip.
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein:
1-drives control signal output port, 2-first indicator light, 3-drives control and image pre-processing module, 4-detector drives control signal input port, 5-second indicator light, 6-face battle array full color imaging detector, 7-lenticule drives control signal input port, 8-the 3rd indicator light, 9-face battle array electrically-controlled liquid crystal lenticule, 10-the 4th indicator light, 11-photoelectric measurement signal output port, 12-the 5th indicator light, the input of 13-photoelectric respone signal and full-colour image data-out port, 14-power port, 15-ceramic package, 16-metallic support and heating panel, 17-the 6th indicator light.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each execution mode of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Figure 1, liquid crystal base electricity of the present invention adjusts spatial resolution full color imaging detection chip to comprise ceramic package 15, metallic support and heating panel 16, drive control and image pre-processing module 3, face battle array full color imaging detector 6 and face battle array electrically-controlled liquid crystal lenticule 9.
Drive control and image pre-processing module 3, face battle array full color imaging detector 6 and face battle array electrically-controlled liquid crystal lenticule 9 be arranged in ceramic package 15.
Ceramic package 15 rear portion is fixedly installed on metallic support and heating panel 16 top, drive control and image pre-processing module 3 is fixedly installed on ceramic package 15 rear portion and metallic support and heating panel 16 junction, face battle array full color imaging detector 6 is set in parallel in and drives control and image pre-processing module 3 top, face battle array electrically-controlled liquid crystal lenticule 9 is set in parallel in battle array full color imaging detector 6 top, face, and by the facial perforate of ceramic package 15 by out exposed for its light entrance face, drive control and image pre-processing module 3, face battle array full color imaging detector 6, and the coaxial order of face battle array electrically-controlled liquid crystal lenticule 9 is arranged.
Face battle array electrically-controlled liquid crystal lenticule 9 comprises M × N number of unit microlens, and wherein M and N is positive integer.
Face battle array full color imaging detector 6 is divided into M × N number of sub-face battle array full color imaging detector, the quantity of this sub-area array infrared detector is identical with lenticular quantity in face battle array electrically-controlled liquid crystal lenticule 9, every height face battle array full color imaging detector comprises P × Q photosensitive unit, and wherein P and Q is positive integer.Infrared light from diverse location is converged on different sub-face battle array full color imaging detectors by unit microlens, from diverse location but the infrared light being in equidirectional converged in the photosensitive unit at same position place in the battle array full color imaging detector of different sub-faces by unit microlens.
This infrared light for receiving the infrared light from target outgoing, and converges in the photosensitive unit of correspondence of different sub-faces battle array full color imaging detector in face battle array full color imaging detector 6 by face battle array electrically-controlled liquid crystal lenticule 9.
Drive control and image pre-processing module 3 for provide for face battle array full color imaging detector 6 drive and adjustment signal.
Photosensitive unit be used for drive and adjustment signal effect under to infrared light perform opto-electronic conversion be the signal of telecommunication, and this signal of telecommunication is sent to drive control and image pre-processing module 3.
Drive control and image pre-processing module 3 also for carrying out preliminary treatment to the signal of telecommunication, with image data generating, and this view data is exported.Specifically, what carry out preliminary treatment employing to the signal of telecommunication is asymmetric correction method.
The side of ceramic package 15 is provided with drives control signal output port 1, drives control and image pre-processing module 3 is supplied to driving and the adjustment signal of face battle array full color imaging detector 6 for exporting.
The side of ceramic package 15 is provided with the first indicator light 2, and the connection of this lamp drives control for display and image pre-processing module 3 is in normal operating conditions.
The side of ceramic package 15 is provided with detector and drives control signal input port 4, for driving and the adjustment signal of input face battle array full color imaging detector 6.
The side of ceramic package 15 is provided with the second indicator light 5, and this lamp is connected and is in normal operating conditions for display surface battle array full color imaging detector 6.
The side of ceramic package 15 is provided with lenticule and drives control signal input port 7, for driving and the adjustment signal of input face battle array electrically-controlled liquid crystal lenticule 9.
The side of ceramic package 15 is provided with the 3rd indicator light 8, and this lamp is connected and is in normal operating conditions for display surface battle array electrically-controlled liquid crystal lenticule 9.
The bottom surface of ceramic package 15 is provided with photoelectric measurement signal output port 11, for the photoelectric respone signal of output face battle array full color imaging detector 6.
The bottom surface of ceramic package 15 is provided with the 4th indicator light 10, and this lamp is connected and is in normal signal output state for display surface battle array full color imaging detector 6.
The bottom surface of ceramic package 15 is provided with the input of photoelectric respone signal and full-colour image data-out port 13, for by the photoelectric respone signal of full color imaging detector input drive control and image pre-processing module 3, and by full-colour image data from drive control and image pre-processing module 3 export.
The bottom surface of ceramic package 15 is provided with the 5th indicator light 12, and the connection of this lamp drives control for display and image pre-processing module 3 is in normal data output state.
The side of ceramic package 15 is provided with power port 14, for accessing power line to be connected with external power source.
The side of ceramic package 15 is provided with the 6th indicator light 17, and this lamp is connected and connected for display power supply.
Below with reference to Fig. 2, operation principle of the present invention is described:
Face battle array full color imaging detector and the more panchromatic detector of array scale lowered electrically-controlled liquid crystal microlens array hybrid integrated, the electricity formed in chip adjusts spatial resolution full color imaging detection framework.The compound mode of liquid crystal device and panchromatic detector for: under divided large, medium and small spatial resolution pattern, every unit liquid crystal microlens is corresponding with 2 × 2 yuan of detectors, 4 × 4 yuan of detectors or 8 × 8 yuan of detectors etc. respectively.For unit liquid crystal microlens, incident light wave is by the sub-plane wave front characterized with inclination angle Φ of discrete formation, and converged on its focal plane by liquid crystal microlens orientation, focal beam spot converts photoelectric respone signal to by the panchromatic detector being placed in this.
Driven the liquid crystal microlens of control by the voltage signal that amplitude is different, its optical collection ability is different.This situation can use the curved surface profile refractive micro lenses that conventional surface curvature is different, has different clear aperatures and optical collection ability equivalent, as its equivalent automatically controlled state-A of illustrated liquid crystal microlens array ,-B ,-C etc.The liquid crystal microlens with different structure size formed, to the light action region of different size be had and form the convergence hot spot with different structure size, as illustrated typical large (-A), in (-B), little (-C) dimension cells lenticule light action district, and incident light wave converge formed typical focal spot-A ,-B ,-C etc.
By to stacked arrangement and have large, medium and small array scale the electrode structure sequence power on of liquid crystal microlens, monolithic full color imaging detector can be made to present different array scale, namely present different spatial resolutions, realize adjusting the detection of spatial resolution full color imaging based on the electricity of electrically-controlled liquid crystal.At liquid crystal microlens not powering state, full color imaging detector will present array scale or the spatial resolution form of its intrinsic.
Utilize the electric control zooming characteristic of liquid crystal microlens, according to target and background, can increase or reduce the measurement of dip angle scope of sub-plane wave front on the one hand, thus increase or the measuring range before reducing light wave, reduce the optical crosstalk noise between liquid crystal microlens.On the other hand, by adjust specific light wave the degree that converges by liquid crystal microlens, the light wave variation that environment or antagonism factor because of burst are brought out can be made, obtain adjustment to a certain extent and calibration, thus improve the accuracy and adaptive capacity to environment of measuring light wave, thus possess certain error correcting capability.
Below briefly introduce operating process of the present invention:
During operation, first connect with parallel signal line and drive control signal output port 1, detector and drive control signal input port 4 and liquid crystal microlens drives control signal input port 7; With parallel data line connect photoelectric respone signal output port 11 and photoelectric respone signal input and full-colour image data-out port 13; Power line is connected on power port 14.Then electric power starting instruction is sent into by parallel communication line (control signal output port 1 is driven in access simultaneously), chip starts self-inspection, now the first indicator light 2, second indicator light 5, the 3rd indicator light 8, the 4th indicator light 10, the 5th indicator light 12, the 6th indicator light 17 hook switch flash.Self-inspection is extinguished by rear 5th indicator light 12 and the 6th indicator light 17, and chip enters operating state.After sending into work order by parallel communication line, chip starts to carry out photoelectric respone signal measurement.Photoelectric respone signal is inputted by photoelectric measurement signal output port 11 and photoelectric respone signal and full-colour image data-out port 13 feeding drives control and image pre-processing module 3, now the 4th indicator light 10 and the 5th indicator light 12 hook switch flash again.Full-colour image data after driving control and image pre-processing module 3 process export finally by the input of photoelectric respone signal and full-colour image data-out port 13.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. liquid crystal base electricity adjusts a spatial resolution full color imaging detection chip, comprises ceramic package, metallic support and heating panel, drives control and image pre-processing module, face battle array full color imaging detector and face battle array electrically-controlled liquid crystal lenticule, it is characterized in that,
Drive control and image pre-processing module, face battle array full color imaging detector and face battle array electrically-controlled liquid crystal lenticule be arranged in ceramic package;
Ceramic package rear portion is fixedly installed on metallic support and heating panel top;
Drive control and image pre-processing module is fixedly installed on ceramic package rear portion and metallic support and heating panel junction;
Face battle array full color imaging detector is set in parallel in and drives control and image pre-processing module top;
Face battle array electrically-controlled liquid crystal lenticule is set in parallel in battle array full color imaging detector top, face, and by the perforate of ceramic package face by out exposed for its light entrance face;
Drive control and the coaxially order setting of image pre-processing module, face battle array full color imaging detector and face battle array electrically-controlled liquid crystal lenticule;
Face battle array electrically-controlled liquid crystal lenticule comprises M × N number of unit microlens, and wherein M and N is positive integer;
Face battle array full color imaging detector is divided into M × N number of sub-face battle array full color imaging detector, the quantity of this sub-face battle array full color imaging detector is identical with lenticular quantity in the battle array electrically-controlled liquid crystal lenticule of face, every height face battle array full color imaging detector comprises P × Q photosensitive unit, and wherein P and Q is positive integer;
This infrared light for receiving the infrared light from target outgoing, and converges in the photosensitive unit of correspondence of different sub-faces battle array full color imaging detector in the battle array full color imaging detector of face by face battle array electrically-controlled liquid crystal lenticule;
Drive control and image pre-processing module for provide for face battle array full color imaging detector drive and adjustment signal;
Photosensitive unit be used for drive and adjustment signal effect under to infrared light perform opto-electronic conversion be the signal of telecommunication, and this signal of telecommunication is sent to drive control and image pre-processing module;
Drive control and image pre-processing module also for carrying out preliminary treatment to the signal of telecommunication, with image data generating, and this view data is exported;
The side of ceramic package is provided with the first indicator light, and the connection of this lamp drives control for display and image pre-processing module is in normal operating conditions;
The side of ceramic package is provided with the second indicator light, and this lamp is connected and is in normal operating conditions for display surface battle array full color imaging detector;
The side of ceramic package is provided with the 3rd indicator light, and this lamp is connected and is in normal operating conditions for display surface battle array electrically-controlled liquid crystal lenticule;
The bottom surface of ceramic package is provided with the 4th indicator light, and this lamp is connected and is in normal signal output state for display surface battle array full color imaging detector;
The bottom surface of ceramic package is provided with the 5th indicator light, and the connection of this lamp drives control for display and image pre-processing module is in normal data output state;
The side of ceramic package is provided with the 6th indicator light, and this lamp is connected and connected for display power supply;
During operation, first connect with parallel signal line and drive control signal output port, detector and drive control signal input port and liquid crystal microlens drives control signal input port, with parallel data line connect photoelectric respone signal output port and photoelectric respone signal input and full-colour image data-out port, power line is connected on power port, then electric power starting instruction is sent into by parallel communication line, chip starts self-inspection, now the first indicator light, second indicator light, 3rd indicator light, 4th indicator light, 5th indicator light, 6th indicator light hook switch flash, self-inspection is by rear 5th indicator light, and the 6th indicator light extinguish, chip enters operating state, after sending into work order by parallel communication line, chip starts to carry out photoelectric respone signal measurement, photoelectric respone signal is by photoelectric measurement signal output port, and photoelectric respone signal inputs and full-colour image data-out port feeding drives control and image pre-processing module, now the 4th indicator light, and the 5th indicator light hook switch flash again, full-colour image data after driving control and image pre-processing module process export finally by the input of photoelectric respone signal and full-colour image data-out port.
2. liquid crystal base electricity according to claim 1 adjusts spatial resolution full color imaging detection chip, it is characterized in that, infrared light from diverse location is converged on different sub-face battle array full color imaging detectors by unit microlens, from diverse location but the infrared light being in equidirectional converged in the photosensitive unit at same position place in the battle array full color imaging detector of different sub-faces by unit microlens.
3. liquid crystal base according to claim 1 electricity adjusts spatial resolution full color imaging detection chip, it is characterized in that, what drive that control and image pre-processing module carry out preliminary treatment employing to the signal of telecommunication is asymmetric correction method.
4. liquid crystal base electricity according to claim 1 adjusts spatial resolution full color imaging detection chip, it is characterized in that,
The side of ceramic package is provided with drives control signal output port, drives control and image pre-processing module is supplied to driving and the adjustment signal of face battle array full color imaging detector for exporting;
The side of ceramic package is provided with detector and drives control signal input port, for driving and the adjustment signal of input face battle array full color imaging detector;
The side of ceramic package is provided with lenticule and drives control signal input port, for the lenticular driving of input face battle array electrically-controlled liquid crystal and adjustment signal.
5. liquid crystal base electricity according to claim 1 adjusts spatial resolution full color imaging detection chip, it is characterized in that,
The bottom surface of ceramic package is provided with photoelectric measurement signal output port, for the photoelectric respone signal of output face battle array full color imaging detector;
The bottom surface of ceramic package is provided with the input of photoelectric respone signal and full-colour image data-out port, for control and image pre-processing module are driven in the input of the photoelectric respone signal of full color imaging detector, and by full-colour image data from driving control and image pre-processing module output.
6. liquid crystal base electricity according to claim 1 adjusts spatial resolution full color imaging detection chip, and it is characterized in that, the side of ceramic package is provided with power port, for accessing power line to be connected with external power source.
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