CN208691390U - A kind of supplementary lighting sources, light supplementing device of camera and video camera - Google Patents
A kind of supplementary lighting sources, light supplementing device of camera and video camera Download PDFInfo
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- CN208691390U CN208691390U CN201821393681.2U CN201821393681U CN208691390U CN 208691390 U CN208691390 U CN 208691390U CN 201821393681 U CN201821393681 U CN 201821393681U CN 208691390 U CN208691390 U CN 208691390U
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Abstract
The utility model discloses a kind of supplementary lighting sources, light supplementing device of camera and video cameras, supplementary lighting sources include main light filling part and colour mixture light filling part, the sending light of the main light filling part is in first band, the sending light of colour mixture light filling part is in second band, the sending light of colour mixture light filling part is mixed with the sending light of the main light filling part, forms exposure compensating light.The supplementary lighting sources of the utility model in first band by adjusting the wavelength of main light filling part, improve the discrimination for treating reference object, the utility model on the basis of main light filling part also by being arranged colour mixture light filling part, the color with the sending mixed mixed light of light of main light filling part is adjusted by the sending light of colour mixture light filling part, the color for the exposure compensating light for issuing supplementary lighting sources is softer, avoids to artificial into dazzle.
Description
Technical field
The utility model relates to technical field of video monitoring, more particularly to a kind of supplementary lighting sources, light supplementing device of camera
And video camera.
Background technique
At present in the video camera of recognition of face, vehicle identification and night color image, since night ambient light is serious
Deficiency, most of video camera carries out light filling usually using white light, but the light that light compensating lamp issues not only can be to artificial at certain
Dazzle influence the discrimination of face and license plate and since face and license plate can all reflect the light of certain wave band.
Thus, it is desirable to have a kind of technical solution come overcome or at least mitigate in the drawbacks described above of the prior art at least one
It is a.
Utility model content
The purpose of this utility model is to provide a kind of supplementary lighting sources to lack to overcome or at least mitigate the above-mentioned of the prior art
At least one of fall into.
To achieve the above object, the utility model provides a kind of supplementary lighting sources, and supplementary lighting sources include main light filling part and mix
The sending light of color light filling part, the main light filling part is in first band, and the sending light of colour mixture light filling part is in
Second band, the sending light of colour mixture light filling part are mixed with the sending light of the main light filling part, form exposure compensating light.
Further, the first band is 650nm~850nm, and the second band is 450nm~620nm or white
Wave band locating for light.
Further, the central wavelength of the sending light of the main light filling part is 730nm, the hair of colour mixture light filling part
The central wavelength of light is 580nm and/or 460nm out.
Further, the sending light of colour mixture light filling part is white light, wherein the reference color temperature of the white light is
2700k~6500k.
Further, the main light filling part and colour mixture light filling part are LED chip, and the main light filling part is corresponding
The corresponding LED chip of LED chip and colour mixture light filling part is encapsulated in a thermally conductive board group, and the thermally conductive board group is installed to light filling
On installation base plate, wherein the thermally conductive board group includes thermally conductive articulamentum and heat-radiating substrate, and two LED chips, which pass through, to be led
Thermal connection layer is fixed on heat-radiating substrate.
Further, the irradiation zone of the main light filling part and colour mixture light filling part is in cone-shaped, two irradiated sites
The light for the overlapping range that domain is formed is the exposure compensating light, and the overlapping range closes on the main light filling part and colour mixture is mended
The setting of light part.
Further, the main light filling part and colour mixture light filling part are LED chip, wherein multiple main light fillings
The corresponding LED chip alternating of the corresponding LED chip in part and multiple colour mixture light fillings part is arranged apart on light filling installation base plate.
Further, the corresponding LED chip in colour mixture light filling part is blue-light LED chip or ultraviolet leds chip.
Further, the power consumption of the corresponding LED chip in the main light filling part is 0.5W~3W, colour mixture light filling part
The power consumption of corresponding LED chip is 0.05W~1W.
Further, the main light filling part and colour mixture light filling part connect in parallel or serial fashion, wherein in parallel
In the case of connection: the main light filling part and colour mixture light filling part are each by corresponding encapsulated circuit pin and the light filling
The current control circuit of source outer connects；In the case of series connection: the main light filling part and colour mixture light filling part
The both ends of the series circuit of composition are connect by encapsulated circuit pin with the current control circuit outside the supplementary lighting sources.
Further, colour mixture light filling part is coated in the phosphor powder layer outside the main light filling part.
The utility model also provides a kind of light supplementing device of camera, and light supplementing device of camera includes supplementary lighting sources, lens, benefit
Light installation base plate and current control circuit, in which: the supplementary lighting sources are arranged in the one or both sides of the camera lens of video camera, described
Supplementary lighting sources go out in light optical path to set the lens, and the electric current that the current control circuit control is conveyed to the supplementary lighting sources is big
Small, the supplementary lighting sources are mounted on video camera by the light filling installation base plate, wherein the supplementary lighting sources are as described above
Supplementary lighting sources.
Further, the current control circuit includes main light filling control circuit and colour mixture light filling control circuit, the master
The output end of light filling control circuit connects the encapsulated circuit pin of the main light filling part, the colour mixture light filling control circuit it is defeated
Outlet connects the encapsulated circuit pin of colour mixture light filling part.
Further, the main light filling control circuit is input to the current strength and the colour mixture of the first light filling chip
Light filling control circuit be input to the ratio of the current strength size of the colour mixture light filling control circuit scope control be 1:10~
1:200。
The utility model also provides a kind of video camera, and video camera includes supplementary lighting sources as described above.
The supplementary lighting sources of the utility model are improved by adjusting the wavelength of main light filling part in first band to be captured
The discrimination of object, the utility model also by the way that colour mixture light filling part is arranged on the basis of main light filling part, pass through colour mixture
The sending light of light filling part come adjust with main light filling part sending the mixed mixed light of light color, issue supplementary lighting sources
Exposure compensating light color it is softer, avoid to artificial into dazzle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of video camera provided by the utility model；
Fig. 2 a is the structure composition schematic diagram of one embodiment of supplementary lighting sources of encapsulating structure shown in FIG. 1；
Fig. 2 b is the structure composition schematic diagram of another embodiment of supplementary lighting sources of encapsulating structure shown in FIG. 1；
Fig. 2 c is the side view of the supplementary lighting sources of encapsulating structure shown in Fig. 2 b；
Fig. 2 d is the structure composition schematic diagram of the another embodiment of supplementary lighting sources of encapsulating structure shown in FIG. 1；
Fig. 3 is a kind of electrical block diagram of supplementary lighting sources shown in Fig. 2 a and Fig. 2 b；
Fig. 4 is another electrical block diagram of supplementary lighting sources shown in Fig. 2 a and Fig. 2 b；
Fig. 5 is the schematic diagram of the main light filling control circuit in supplementary lighting sources shown in FIG. 1；
Fig. 6 is the schematic diagram of the colour mixture light filling control circuit in supplementary lighting sources shown in FIG. 1.
Specific embodiment
In the accompanying drawings, same or similar element is indicated using same or similar label or there is same or like function
Element.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " perpendicular in the description of the present invention,
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as to scope of protection of the utility model
Limitation.
As shown in Figure 1, light compensating lamp provided by the present embodiment includes supplementary lighting sources 1, lens 2, light filling installation base plate 3 and electricity
Flow control circuit, in which: supplementary lighting sources 1 are arranged in 4 one or both sides of camera lens of video camera, in the insufficient feelings of ambient light
Reference object is treated under shape carries out light filling.Going out in light optical path for supplementary lighting sources 1 sets lens 2, to reach the effect of optically focused by lens 2
Fruit, to improve the utilization rate and light intensity of supplementary lighting sources 1.Lens 2 generally use total internal reflection lens, can effectively adjust light filling light
The propagation path for the light that source issues can rationalize bigizationner using light-source brightness in this way, can also pass through the design of lens
To meet the light-emitting angle of camera lens.Lens 2 are fixedly installed to the shell of the front end assemblies 5 of video camera using mode for dispensing glue.Electricity
Flow control circuit controls the size of current for being conveyed to supplementary lighting sources, to control the luminous intensity of supplementary lighting sources.Supplementary lighting sources 1 pass through
Light filling installation base plate 3 is mounted on the front end assemblies 5 of video camera, and the specific implementation of light filling installation base plate 3 is in following reality
Applying in example to be specifically described in detail.
In one embodiment, supplementary lighting sources 1 are arranged to by the combination shape of main light filling part 11 and colour mixture light filling part 12
The sending light of formula, main light filling part 11 is in first band, and the sending light of colour mixture light filling part 12 is in second band, colour mixture
The sending light of light filling part 12 is mixed with the sending light of main light filling part 11, forms exposure compensating light.The light filling light of the present embodiment
The discrimination for treating reference object is improved, the present embodiment is also logical by adjusting the wavelength of main light filling part in first band in source
Setting colour mixture light filling part on the basis in main light filling part is crossed, is adjusted by the sending light of colour mixture light filling part and main benefit
The color of the sending mixed exposure compensating light of light of light part, the color for the mixed light for issuing supplementary lighting sources is softer,
It avoids to artificial into dazzle.
Preferably, the irradiation zone of main light filling part 11 and colour mixture light filling part 12 is in cone-shaped, main light filling part 11
The light for the overlapping range that irradiation zone and the irradiation zone of colour mixture light filling part 12 are formed is the exposure compensating light, and described heavy
Folded range is closed on the main light filling part 11 and colour mixture light filling part 12 and is arranged.
Those of ordinary skill in the art could be aware that: the colour of skin of face is generally divided into yellow, black and brown, license plate
General to use blue bottom wrongly written or mispronounced character, the face and license plate of the different colours of skin have different degrees of reflection category to the spectrum of different wave length
Property.
One group of experimental data is shown: the face of different colours of skin reflectivity highest when wavelength is 650nm, after 650nm
Face reflectivity gradually decreases.Reflectivity is higher, and under the conditions of of the same race, the light quantity received by video camera acquisition chip is more,
It is easier to be identified, so selection wavelength is greater than the light source of 650nm.
Another group of experimental data is shown: the white font of license plate to the spectral reflectivity of 400nm~800nm entire scope all
It is relatively high, and blue bottom is higher to spectral reflectivity of the central wavelength near 450nm, and to 600nm~800nm wave band
Reflectivity is very low, and since 800nm, reflectivity is begun to ramp up again.Therefore, it in order to preferably differentiate license plate number, needs to make vehicle
The background color of board and the reflective contrast of font component are big.Using the supplementary lighting sources between 600~800nm, the background color of license plate is anti-
Light rate is low, and the reflecting rate of font is high, contrast both in this way be it is highest, light source using this wavelength band is to setting vehicle
The video camera of board carries out light filling, is conducive to the identification of license plate number.
Therefore, the identification demand of the present embodiment comprehensive face and license plate, by the waveband selection of supplementary lighting sources 1 be 650nm~
850nm, is also beneficial to improve the identification to face and license plate at the case where can improving existing white light dazzling (dazzle) in this way.
It should be noted that the spectrum that wave band is 650nm~850nm is concentrated mainly on red light region.In actual application
In, the light source of this wave band in road occupation is easy that driver or pedestrian is made to be mistakenly considered traffic when viewing at a distance
Red light in lamp misleads pedestrian.
According to the correlation theory of colorimetry, by being mixed into the light of other colors in a kind of light source of color, thus it is possible to vary
The color of current light.In order to avoid the supplementary lighting sources 1 of wave band between above-mentioned 650nm~850nm are mistakenly considered in traffic lights by people
Red light, the present embodiment is by the way of colour mixture light filling.And the first band that main light filling part 11 issues light is set as
650nm~850nm, the light issued by colour mixture light filling part 12 issue light with main light filling part 11 and mix, this colour mixture light filling
Mode can cover the feux rouges that main light filling part 11 issues, therefore, both avoid misleading user, and clear knowledge can be reached
The demand of others' face and license plate.
In order to keep supplementary lighting sources 1 not shown in red, the color for the light that colour mixture light filling part 12 issues can be white,
White light is mixed into feux rouges, can the red of feux rouges showed is thin out, shoal, and existing red traffic light hair can be different from
Red out.Colour mixture light filling part 12 issues the implementation of white light, such as: the capable of emitting white light of blue chip laser fluorescence powder, purple
Outer ray laser fluorescent powder also issues white light.
The quantity of colour mixture light filling part 12 can be 1 or more (such as 2).The colour temperature of colour mixture light filling part 12 exists
Between 2700k~6500k.Main light filling part 11 is combined with the colour mixture light filling part 12 for issuing white light, can remove red aeration phenomenon,
Dazzle is not generated, the recognition success rate for improving video camera is conducive to.Light compensating lamp provided by the present embodiment is in practical applications, main
Will be there are two types of application mode: one is recognitions of face and Car license recognition mode, use the main light filling part 11 of 650nm~850nm
As the supplementary lighting sources of monitoring device, the power bracket of main light filling part 11 is 0.5W~3W, the power of colour mixture light filling part 12
Range is 0.05W~1W, white light power consumption very little.Another kind is can to close 650nm~850nm's under night full color mode
Main light filling part 11, supplementary lighting sources of the colour mixture light filling part 12 as video camera.The present embodiment can be in same video camera
Realize night color mode and the multiple functions such as recognition of face and Car license recognition mode.
In one embodiment, in order to keep supplementary lighting sources 1 not shown in red, the face for the light that colour mixture light filling part 12 issues
Color is also possible to other colors, such as issues the light of 450nm~620nm wave band.Specifically, such as: such as central wavelength is 580nm
Yellow light, the color of finally mixed light is orange-yellow.Also such as: the central wavelength of the sending light of colour mixture light filling part 12 is
The color of the mixed light in the main light filling part 11 of the blue light of 460nm, last colour mixture light filling part 12 and 650nm~850nm wave band
It is purple light or inclined blue light.Human eye has different susceptibilitys, sense of the human eye to the feux rouges of 730nm for the light of different colours
Backscatter extinction logarithmic ratio is 0.00052, and human eye is 0.06 to the photosensitive coefficient of the blue light of 460nm, as long as so being mixed into very low power indigo plant
Light can then blend purple light and inclined blue light, and the identification of license plate is not also impacted.
As shown in Figure 2 a, in one embodiment, main light filling part 11 and colour mixture light filling part 12 are LED chip, are mended
Radiant 1 uses encapsulating structure.
Such as: the corresponding LED chip of the corresponding LED chip in main light filling part 11 and colour mixture light filling part 12 is encapsulated in one
In thermally conductive board group, the thermally conductive board group is installed on light filling installation base plate, wherein the thermally conductive board group includes thermally conductive articulamentum
(such as: Eutectic Layer or elargol layer) 6 and heat-radiating substrate 7, the corresponding LED chip in main light filling part 11 and colour mixture light filling part 12
Corresponding LED chip passes through thermally conductive articulamentum 6 fixed on heat-radiating substrate 7.Wherein, the main body of effect of thermally conductive articulamentum 6
It is present: main light filling part 11 and colour mixture light filling part 12 to be connected on heat-radiating substrate 7, heat-radiating substrate 7 is welded in light filling installation
On substrate 3.
Thermally conductive articulamentum 6 has capacity of heat transmission, can enhance the heat-sinking capability of device in this way.Heat-radiating substrate 7 can be adopted
With ceramic substrate, ceramic substrate has excellent heat-sinking capability, and temperature capability is high, mends as main light filling part 11 and colour mixture
The operating temperature of supplementary lighting sources 1 can be effectively reduced in the heat-radiating substrate of light part 12.
Light filling installation base plate 3 is using aluminum substrate, then aluminum substrate is screwed to the front end for being mounted on video camera
On component 5.At this point, the heat distributed in 12 luminescence process of main light filling part 11 and colour mixture light filling part is conducted from heat-radiating substrate 7
To light filling installation base plate 3, then pass through the front end assemblies 5 that light filling installation base plate 3 is transmitted to video camera, finally by front end assemblies 5
Shell heat is scattered in the external environment of video camera.
In one embodiment, as shown in Fig. 2 b and Fig. 2 c, main light filling part 11 and colour mixture light filling part 12 are LED
Chip, supplementary lighting sources 1 are encapsulating structure, wherein multiple main light filling parts 11 and multiple colour mixture light fillings part 12 alternately separate cloth
It sets on substrate.That is, it is the main light filling chip of 3W and more power are that the encapsulating structure, which may include a power,
The colour mixture light filling chip of 0.05W.The encapsulating structure also may include the main light filling chip and more power that more power are 1.5W
It is the colour mixture light filling chip of 0.05W, main light filling chip and colour mixture light filling chip alternating are arranged apart on substrate.The present embodiment
Encapsulating structure uses COB (chip on board) form, and substrate is the aluminum substrate 3 that is mentioned above, main light filling chip at this time and
Colour mixture light filling chip is directly electrically connected aluminum substrate 3, to save the elargol and encapsulated layer in conventional encapsulation.
In one embodiment, as shown in Figure 2 d, colour mixture light filling part 12 is coated in the fluorescence outside main light filling part 11
Bisque 16.For example, the color for the light that main light filling part 11 issues is red, then can choose phosphor powder layer 16, fluorescence is utilized
The light that bisque 16 issues is mixed with the feux rouges that main light filling part 11 issues, and the color of the exposure compensating light formed in this way can make one
The light that main light filling part issues slightly is seen or be can't see to eye, to also function to the effect for weakening red exposure.
In one embodiment, in encapsulating structure, main light filling part 11 and colour mixture light filling part 12 can be using in Fig. 3
The parallel way connection shown, at this point, main light filling part 11 has the first encapsulated circuit pin 13, colour mixture light filling part 12 has
Second encapsulated circuit pin 14.Main light filling part 11 and colour mixture light filling part 12 each by corresponding encapsulated circuit pin and are mended
Current control circuit connection outside radiant 1, that is, main light filling part 11 passes through the first encapsulated circuit pin 13 and supplementary lighting sources
Current control circuit connection outside 1；Colour mixture light filling part 12 passes through outside the second encapsulated circuit pin 14 and supplementary lighting sources 1
Current control circuit connection.
In one embodiment, main light filling part 11 and colour mixture light filling part 12 can also be using the series systems in Fig. 4
Connection, at this point, the both ends for the series circuit that main light filling part 11 and colour mixture light filling part 12 are constituted are drawn by third encapsulated circuit
Foot 15 is connect with the current control circuit outside supplementary lighting sources 1.
In one embodiment, current control circuit includes main light filling control circuit 8 and colour mixture light filling control circuit 9,
In, for main light filling control circuit 8 in such a way that constant current drives, control is input to the size of the current strength of main light filling part 11, should
It is main light filling current strength that current strength, which is hereinafter referred to as, to control the luminous intensity of main light filling part 11.Colour mixture light filling control electricity
Road 9 is also in a manner of constant current driving, and control is input to the size of the current strength of colour mixture light filling part 12, and the current strength is hereafter
Referred to as colour mixture light filling current strength, to control the luminous intensity of colour mixture light filling part 12.Main light filling current strength and colour mixture are mended
The scope control of the ratio of photo-current intensity size is 1:10~1:200, in practice it has proved that the proportional region both will not make white light too
It is dazzling, and feux rouges can be hidden.
Fig. 5 shows a kind of implementation of main light filling control circuit 8, as shown in figure 5, main light filling control circuit 8 has
There are main light filling input terminal IR and main light filling output end, IRLEDO+ is the anode of main light filling output end, and IRLEDO- is that main light filling is defeated
The cathode of outlet, the positive IRLEDO+ and cathode IRLEDO- of main light filling output end are used to connect the electric current of main light filling part 11
Input terminal.
The model of main light filling control circuit 8 including the first constant-current driven chip UG1, the first constant-current driven chip UG1 can be with
It is SYHV12ABC.In figure, the foot 1 of the first constant-current driven chip UG1 is switch output pin, and foot 2 is earth-return pin, and foot 3 is
Test pin, foot 4 are chip operation enable pins, and foot 5 is chip input voltage pin, and foot 6 is LED current detection pin.
For foot 1 by the main light filling input terminal IR of diode D16 connection, diode D16 is two pole of afterflow of asynchronous DCDC chip
Pipe.Foot 6 is used to solve the resistance station of radiation problem by the main light filling input terminal IR of resistance R247 connection, resistance R247.Foot 4 is logical
The PWM pin MAIN LED CTL A1 for crossing resistance R246 connection peripheral control unit, the PWM of foot 4 is conveyed to by peripheral control unit
Signal controls the size of current that main light filling control circuit 8 exports.Resistance R246 is used to solve the resistance station of radiation problem.Foot
5 all connect main light filling input terminal IR, and foot 2 and foot 3 are all grounded.Current limit circuit 81 is set between foot 6 and main light filling input terminal IR,
Foot 6 and current-limiting circuit 81 indirectly.Current-limiting circuit 81 is used to control the current maxima flowed through on main light filling part 11.Specifically
Ground, current-limiting circuit 81 include the first resistor R249 and second resistance R248 being connected in parallel, first resistor R249 and second resistance
0.125 Ω of resistance value after R248 is in parallel.The current strength for flowing through main light filling part 11 is 0.1/0.125 (A)=0.8A.Main light filling
Input terminal IR is grounded by the first filter circuit 82, and the first filter circuit 82 includes the first capacitor C273 and second being connected in parallel
Capacitor C270 is filtered main light filling input terminal IR, prevents input voltage unstable.Foot 1 passes through the first storage capacitor L2 connection
Output end IRLEDO-.Current stabilization circuit 83 is set between output end IRLEDO+ and IRLEDO-.Current stabilization circuit 83 includes being connected in parallel
Third capacitor C274 and the 4th capacitor C269 guarantees main light filling part 11 for inhibiting the current ripples of main light filling part 11
Electric current is stablized.
Fig. 6 shows a kind of implementation of colour mixture light filling control circuit 9, as shown in fig. 6, colour mixture light filling control circuit
9 have colour mixture light filling input terminal VIN and colour mixture light filling output end, and LED+ is the anode of colour mixture light filling output end, and LED- is colour mixture
The cathode of light filling output end, colour mixture light filling output head anode LED+ and cathode LED- are used to connect the electric current of colour mixture light filling part 12
Input terminal.
Colour mixture light filling control circuit 9 includes the second constant-current driven chip UW2, and the model of the second constant-current driven chip UW2 can
To be TPS54201.In figure, the foot 1 of the second constant-current driven chip UW2 is earth-return pin, and foot 2 is switch output pin, foot 3
It is power input pin, foot 4 is output current feedback pin, and foot 5 is constant-current driven chip model selection pin, and foot 6 is boosting
Pin, foot 6 control SW output signal.
The second filter circuit 91 is set between colour mixture light filling input terminal VIN and ground, the second filter circuit 91 includes being connected in parallel
Third capacitor C7 and the 4th capacitor C8, colour mixture light filling input terminal VIN is filtered, prevents input voltage unstable.Foot 2 passes through
Second storage capacitor L3 connection output end LED+.Foot 6 is connected between foot 2 and the second storage capacitor L3 by boost capacitor C6.
Boost capacitor C6 has boosting, and the upper tube of control colour mixture light filling control circuit 9 is opened.Foot 3 connects colour mixture light filling input terminal
VIN.Foot 4 is also grounded by capacitor C9 by resistance R3 connection output end LED-, foot 4.Resistance R3 and capacitor C9 composition RC filtering
Circuit and foot 4 constitute a pole, guarantee loop bandwidth and stability.Foot 5 connects the PWM pin of peripheral control unit, by outer
Portion's controller is conveyed to the pwm signal of foot 5, controls the size of current that main light filling control circuit 8 exports.The duty ratio of PWM determines
The size of electric current is exported, the electric current of the warm white in the present embodiment is 1mA, and the duty ratio of PWM is 1%.
Flying capcitor C10 between colour mixture light filling output head anode LED+ and colour mixture light filling negative pole of output end LED-, capacitor
C10 reduces current fluctuation, guarantees that colour mixture light filling part 12 works as far as possible and marking for stablizing the colour mixture light filling current strength of output
Quasi- constant current mode prevents colour mixture light filling part 12 from flashing.Output end LED- is grounded by resistance R4, and resistance R4 is for detecting
The size of current of colour mixture light filling part 12 is flowed through, guarantees that the current strength size for flowing through colour mixture light filling part 12 is the electric current of setting
Value, flows through the current strength I=0.2V/R4 of colour mixture light filling part 12.
It should be noted that when main light filling part 11 and colour mixture light filling part 12 are connected using parallel way shown in Fig. 3
When connecing, the first encapsulated circuit pin 13 of packaging part connect main light filling control circuit 8 main light filling output end IRLEDO+,
IRLEDO-.Also, the colour mixture light filling output end of the second encapsulated circuit pin 14 connection colour mixture light filling control circuit 9 of packaging part
LED+、LED-。
When main light filling part 11 is connected with colour mixture light filling part 12 using the series system in Fig. 4, the third envelope of packaging part
Dress circuit pin 15 connects main light filling output end IRLEDO+, IRLEDO- of main light filling control circuit 8.
In a specific embodiment, it is the light of 700nm~760nm, 700~760nm that main light filling part 11, which selects wave band,
What the main light filling part 11 of wave band issued is infrared light, and color is red.Colour mixture light filling part 12 uses colour temperature for the warm of 3000K
White light, color are yellow, therefore, the color of light after main light filling part 11 mixing of 3000K warm white and 700~760nm wave band
It is that warm white colour cast is yellow, on the one hand which can solve the dazzling problem of glare caused by simple white light, on the other hand, colour mixture light filling
The red exposure problem that can solve simple 700-760nm wave band afterwards, prevents from being mistaken as crossing red light.In addition to this, this kind of colour mixture
Light filling mode is conducive to improve the contrast under face and the infrared light filling effect of license plate.Preferably, main light filling control circuit 8 inputs
Current strength to main light filling part 11 is 800mA, and colour mixture light filling control circuit 9 is input to the current strength of 3000K warm white
For 5~10mA.
Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited
System.Those skilled in the art should understand that: it is possible to modify the technical solutions described in the foregoing embodiments, or
Person's equivalent replacement of some of the technical features；These are modified or replaceed, and do not make the essence of corresponding technical solution de-
Spirit and scope from various embodiments of the utility model technical solution.
Claims (18)
1. a kind of supplementary lighting sources characterized by comprising the supplementary lighting sources (1) include that main light filling part (11) and colour mixture are mended
The sending light of light part (12), the main light filling part (11) is in first band, the hair of colour mixture light filling part (12)
Light is in second band out, and the sending light of colour mixture light filling part (12) and the sending light of the main light filling part (11) are mixed
It closes, forms exposure compensating light.
2. supplementary lighting sources as described in claim 1, which is characterized in that the first band is 650nm~850nm, described the
Two wave bands are wave band locating for 450nm~620nm or white light.
3. supplementary lighting sources as described in claim 1, which is characterized in that the middle cardiac wave of the sending light of the main light filling part (11)
The central wavelength of a length of 730nm, the sending light of colour mixture light filling part (12) are 580nm and/or 460nm.
4. supplementary lighting sources as claimed in claim 2, which is characterized in that the sending light of colour mixture light filling part (12) is white
Light, wherein the reference color temperature of the white light is 2700k~6500k.
5. supplementary lighting sources as described in claim 1, which is characterized in that the main light filling part (11) and colour mixture light filling part
(12) irradiation zone is in cone-shaped, and the light for the overlapping range that two irradiation zones are formed is the exposure compensating light, and institute
It states overlapping range and closes on the main light filling part (11) and colour mixture light filling part (12) setting.
6. the supplementary lighting sources as described in any one of claims 1 to 5, which is characterized in that the main light filling part (11) and mixed
Color light filling part (12) is LED chip, and the corresponding LED chip of the main light filling part (11) and colour mixture light filling part (12) are right
The LED chip answered is encapsulated in a thermally conductive board group, and the thermally conductive board group is installed on light filling installation base plate, wherein described to lead
Hot plate group includes thermally conductive articulamentum (6) and heat-radiating substrate (7), and two LED chips pass through thermally conductive articulamentum (6) and are fixed to
On heat-radiating substrate (7).
7. the supplementary lighting sources as described in any one of claims 1 to 5, which is characterized in that the main light filling part (11) and mixed
Color light filling part (12) is LED chip, wherein multiple main corresponding LED chips of light filling part (11) and multiple colour mixtures
The corresponding LED chip alternating in light filling part (12) is arranged apart on light filling installation base plate.
8. supplementary lighting sources as claimed in claim 6, which is characterized in that the corresponding LED chip in colour mixture light filling part is indigo plant
Light LED chip or ultraviolet leds chip.
9. supplementary lighting sources as claimed in claim 7, which is characterized in that the corresponding LED chip in colour mixture light filling part is indigo plant
Light LED chip or ultraviolet leds chip.
10. supplementary lighting sources as claimed in claim 6, which is characterized in that the power consumption of the corresponding LED chip in the main light filling part
For 0.5W~3W, the power consumption of the corresponding LED chip in colour mixture light filling part is 0.05W~1W.
11. supplementary lighting sources as claimed in claim 7, which is characterized in that the power consumption of the corresponding LED chip in the main light filling part
For 0.5W~3W, the power consumption of the corresponding LED chip in colour mixture light filling part is 0.05W~1W.
12. supplementary lighting sources as claimed in claim 6, which is characterized in that the main light filling part (11) and colour mixture light filling part
(12) it connects in parallel or serial fashion, wherein in the case of being connected in parallel: the main light filling part (11) and colour mixture light filling
Partially (12) are connect each by the corresponding encapsulated circuit pin current control circuit external with the supplementary lighting sources (1)；String
In the case of connection connection: the both ends of the series circuit of the main light filling part (11) and colour mixture light filling part (12) composition pass through envelope
The dress circuit pin current control circuit external with the supplementary lighting sources (1) is connect.
13. supplementary lighting sources as claimed in claim 7, which is characterized in that the main light filling part (11) and colour mixture light filling part
(12) it connects in parallel or serial fashion, wherein in the case of being connected in parallel: the main light filling part (11) and colour mixture light filling
Partially (12) are connect each by the corresponding encapsulated circuit pin current control circuit external with the supplementary lighting sources (1)；String
In the case of connection connection: the both ends of the series circuit of the main light filling part (11) and colour mixture light filling part (12) composition pass through envelope
The dress circuit pin current control circuit external with the supplementary lighting sources (1) is connect.
14. the supplementary lighting sources as described in any one of claims 1 to 5, which is characterized in that colour mixture light filling part (12) is
Phosphor powder layer (16) coated in the main light filling part (11) outside.
15. a kind of light supplementing device of camera, which is characterized in that including supplementary lighting sources (1), lens (2), light filling installation base plate (3)
And current control circuit, in which: the supplementary lighting sources (1) are arranged in the one or both sides of the camera lens (4) of video camera, the light filling
Going out in light optical path for light source (1) is set the lens (2), and the current control circuit control is conveyed to the supplementary lighting sources (1)
Size of current, the supplementary lighting sources (1) are mounted on video camera by the light filling installation base plate (3), wherein the light filling light
Source (1) is supplementary lighting sources (1) described in any one of claims 1 to 11.
16. light supplementing device of camera as claimed in claim 15, which is characterized in that the current control circuit includes main light filling
The output end of control circuit (8) and colour mixture light filling control circuit (9), the main light filling control circuit (8) connects the main light filling
The output end of the partially encapsulated circuit pin of (11), the colour mixture light filling control circuit (9) connects colour mixture light filling part
(12) encapsulated circuit pin.
17. light supplementing device of camera as claimed in claim 16, which is characterized in that main light filling control circuit (8) input
The colour mixture light filling is input to the current strength of the main light filling part (11) and the colour mixture light filling control circuit (9) to control
The scope control of the ratio of the current strength size of circuit (9) is 1:10~1:200.
18. a kind of video camera, which is characterized in that including the supplementary lighting sources (1) as described in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393681.2U CN208691390U (en) | 2018-08-28 | 2018-08-28 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393681.2U CN208691390U (en) | 2018-08-28 | 2018-08-28 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
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| Publication Number | Publication Date |
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| CN208691390U true CN208691390U (en) | 2019-04-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110445990A (en) * | 2019-08-13 | 2019-11-12 | 浙江大华技术股份有限公司 | A kind of light compensating apparatus and camera system |
| WO2020043141A1 (en) * | 2018-08-28 | 2020-03-05 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN112034665A (en) * | 2020-09-15 | 2020-12-04 | Oppo（重庆）智能科技有限公司 | Flash lamp assembly and electronic equipment |
| CN113298066A (en) * | 2021-05-13 | 2021-08-24 | 广州文远知行科技有限公司 | Image acquisition control method and device, sensor and storage medium |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020043141A1 (en) * | 2018-08-28 | 2020-03-05 | 杭州海康威视数字技术股份有限公司 | Video camera |
| CN110445990A (en) * | 2019-08-13 | 2019-11-12 | 浙江大华技术股份有限公司 | A kind of light compensating apparatus and camera system |
| CN110445990B (en) * | 2019-08-13 | 2022-06-21 | 浙江大华技术股份有限公司 | Light filling device and shooting system |
| CN112034665A (en) * | 2020-09-15 | 2020-12-04 | Oppo（重庆）智能科技有限公司 | Flash lamp assembly and electronic equipment |
| CN112034665B (en) * | 2020-09-15 | 2022-05-17 | Oppo（重庆）智能科技有限公司 | Flash lamp assembly and electronic equipment |
| CN113298066A (en) * | 2021-05-13 | 2021-08-24 | 广州文远知行科技有限公司 | Image acquisition control method and device, sensor and storage medium |
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