CN205485220U - Light -emitting diode (LED) fill light - Google Patents
Light -emitting diode (LED) fill light Download PDFInfo
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- CN205485220U CN205485220U CN201521075946.0U CN201521075946U CN205485220U CN 205485220 U CN205485220 U CN 205485220U CN 201521075946 U CN201521075946 U CN 201521075946U CN 205485220 U CN205485220 U CN 205485220U
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- led
- light
- cup
- convex lens
- optical transmission
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- 230000003287 optical effect Effects 0.000 claims description 28
- 239000013589 supplement Substances 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides a light -emitting diode (LED) fill light, including casing and circuit control module, the LED lamp of setting in casing inside, the front end of casing is equipped with anti - light cup and diaphanous window, and circuit control module and LED lamp are connected, diaphanous window and anti - light cup's the export setting that cooperatees, the last convex lens that are equipped with of diaphanous window, the power of LED lamp is 5 -50W. The beneficial effects of the utility model are that this light -emitting diode (LED) fill light is used for can improving vehicle number plate recognition when road monitoring made a video recording night rates, reaches the requirement of intelligent license plate retrieval to image definition, light filling lamp power is low, and is energy -concerving and environment -protective, the light that jets out is even soft, does not influence driver's sight, can guarantee driver's safe driving, and the security is high.
Description
Technical field
This utility model belongs to monitoring camera field of illuminating device, especially relates to a kind of LED light supplement lamp.
Background technology
Present stage night movement vehicle license plate identification is mainly auxiliary by bayonet socket camera, electronic police (essence is still bayonet socket camera)
Helping flash lighting to realize, but both the above equipment price is high, mounting process is complicated, is not suitable for extensive universal, it is impossible to reach
The requirement of all standing is monitored to safe city.Common high-definition monitoring camera identifies that moving vehicle car plate relies primarily on Chang Liang night
Light source light filling, but vehicle strong illumination cannot be suppressed, solving picture conditions of streaking, discrimination is extremely low.Tradition light compensation method uses
, all there is power consumption big in Halogen light (more than power 500W), LED white light (more than power 80W), it is impossible to suppression vehicle high light,
Cannot solve moving vehicle picture conditions of streaking, Car license recognition rate is low.Halogen lamp light color is unfavorable to Car license recognition, discrimination
Being only capable of reaching 30%, car plate definition is the highest, and service life is short, and power consumption is high, and caloric value is big, starts moment to monitoring system
System impact is big, easily causes equipment failure rate and raises.Power 80W above LED white light is favourable to Car license recognition, but LED light
Concentrating, skewness, light beam mid portion is brighter, substantially shades in both sides, can only identify light beam brighter position car plate, it is impossible to cover
Cover whole road surface, it is impossible to suppression vehicle high light, it is impossible to solve moving vehicle picture conditions of streaking, discrimination is less than 50%, car plate
Definition is permissible, but lamp from dazzling, easily cause vehicle accident, do not meet traffic safety code requirement.
Patent 201210185097.9 discloses a kind of traffic monitoring light-supplementary lamp, belongs to traffic monitoring photographic means neck
Territory.Being provided with housing, be provided with circuit control module in housing, circuit control module is electrically connected with the flash lamp tube installed on a mirror
Connecing, upper cover is fixed on housing, and illuminator forms a strip luminous body that can launch strip light with flash lamp tube, can send out
The shell end of the strip luminous body front portion penetrating strip light is fixed with a convex lens, and it not only can control light-illuminating
The spot size in region, and the more important thing is and the light intensity of hot spot different parts can be controlled, even if being photographed object
The intensity of light reflection of different parts different, also can obtain being photographed the overall clear pictures of object.
Patent 201220369577.6 discloses a kind of LED light supplement lamp, and described light compensating lamp includes LED packaging body, described
LED packaging body is arranged in a housing, and the front end of described housing is provided with reflection shield and optical transmission window, described housing upper and lower
End face offers louvre, housing connects and arranges a cover body, built on stilts setting between this cover body and housing.This LED light supplement lamp structure
Reasonable in design, length in service life and can using as light compensating lamp, which raises the work efficiency of LED light source, can protect simultaneously
Card brightness, light efficiency and stroboscopic requirement, it is possible to improve in the case of effectively reducing assembly cost stroboscopic duration accurately control and
Light filling effect so that it is go for traffic monitoring design requirement.
How to use a kind of light compensation method with low cost night, both can suppress vehicle strong illumination, and can identify again
Moving vehicle car plate, is the difficult problem in monitoring trade, does not has successful case the most so far, along with the intellectuality of high-definition monitoring is deep
Degree application, social need is more urgent.
Utility model content
The purpose of this utility model is to provide and a kind of identifies vehicle license plate in motion night for common high-definition camera
Light compensating lamp, improves car license plate recognition rate, reaches the license plate intelligently retrieval requirement to image definition, light compensating lamp power simultaneously
Low, driver safety can also be protected while energy-conserving and environment-protective to drive.
The technical solution of the utility model is:
LED light supplement lamp, including housing and be arranged on the circuit control module of enclosure interior, LED, the front end of housing is provided with
Reflector and optical transmission window, circuit control module is connected with LED, and described optical transmission window matches with the outlet of reflector and sets
Putting, described optical transmission window is provided with convex lens, and the power of described LED is 5-50W.
This utility model LED light supplement lamp uses the convex lens matched with optical transmission window, and convex lens matches with reflector
The light dissipated emitted by LDE lamp is concentrated and becomes parallel rays, make the light in range of exposures be evenly distributed, brightness one
Cause.This utility model people finds through numerous studies, and the LED using power to be 5-50W can either meet with convex lens combination
The requirement of number plate of vehicle identification, again it can be avoided that light is too strong, causes picture conditions of streaking.And this utility model LED light filling
The source light that lamp is provided is soft, and driver is in driving procedure, and driver and LED are apart from the light luminance one not existed together
Cause, driver's sight line will not be affected due to light change, cause security incident.
Preferably, the power of described LED is 10-30W.
It is furthermore preferred that the power of described LED is 20W.
Described optical transmission window is circular, and described convex lens is diameter planoconvex lens identical with optical transmission window, and described plano-convex is saturating
The plane of mirror is that light injects face, and the convex surface of described planoconvex lens is light outgoing plane, the horizontal edge of described planoconvex lens with
The medial wall of optical transmission window is connected.
This utility model uses the interphase interaction of planoconvex lens, planoconvex lens and reflector, light LED sent
Localization effects is good, and in the region that LED light supplement lamp is irradiated to, light is evenly distributed, and further increases the effect that light is concentrated.
The convex surface of described convex lens is hemisphere face or half ellipsoidal surface.
Described convex lens also includes the cylindrical sides perpendicular with plane and the ring surface with plane parallel, cylindrical
One end of side is adjacent with plane, and the other end of cylindrical sides is connected with the cylindrical of ring surface, the inner circle of described ring surface
Being connected with convex surface, described cylindrical sides is connected with the medial wall of optical transmission window.
Cylindrical sides and ring surface and the plane of convex lens constitute one be looped around bottom convex lens have certain
The cylinder of height.This cylinder not only facilitates the installation of convex lens, makes the connection between convex lens and optical transmission window more firm
Gu, yet further enhances the light collecting effect of convex lens.Just having the convex lens of routine, some light may be at the edge of convex lens
Directly injection, does not has light collecting effect, and is provided with a cylinder being integrally machined with convex lens in the bottom of convex lens, portion
Point it is mapped to the light of meniscus edge, through cylindrical side wall and the repeatedly refraction of ring surface and reflection, is returned to reflector
In, through the reflection of reflector, again penetrate from other parts of convex lens.
Described ring surface inner circle radius is the 80-96% of ring surface exradius.
This utility model research worker finds through great many of experiments, and ring surface inner circle radius is the 80-96% of exradius
Time, light collecting effect is best, can either directly penetrate from the edge of convex lens by preventing portion light splitter, again it can be avoided that ring surface inner circle
And the distance between cylindrical is excessive, light is directed through ring surface injection.
The 1/2-1/3 that distance is planoconvex lens focal length between described convex lens plane and LED.
Described LED is regular polygon or circle, and the center of described LED is on the axis of convex lens.
The limit number of described regular polygon is more than or equal to 4, the drift angle of described regular polygon and the ring surface cylindrical of convex lens
On the same taper seat with concave lens focus as summit.
So can be further ensured that by the light of convex lens be directional light, and uniform light is soft in irradiation area.
At the bottom of described reflector includes glass and wall of cup, being a circular flat at the bottom of described cup, wall of cup is a frustum of a cone sidewall, at the bottom of cup
Being connected with smooth excessiveness between wall of cup small end, the outlet of reflector is the big end of wall of cup, and the middle part at the bottom of cup is provided with matches with LED
Hole.
The light of LED injection reflects, finally except directly through the multiple reflections of reflective wall of cup and the repeatedly refraction of convex lens
Connecting outside the light of convex lens injection, other major part light enter in convex lens after the reflection of reflector base plane.
Reflector interacts with convex lens and further increases the effect that light is concentrated.LED is made also to be able under relatively low power
Reach clearly to identify the effect of number plate of vehicle.
The outside diameter of described wall of cup is identical with the ring surface outside diameter of convex lens.
The front end of described housing is additionally provided with dark slide, and dark slide is connected with housing, and dark slide is provided with optical transmission window.
The light being provided for guarantee LED injection of dark slide is all through convex lens.
This utility model has the advantage that with good effect:
1, LED power is low, energy-conserving and environment-protective；
2, number plate of vehicle identification is clear, without picture conditions of streaking；
3, the light in range of exposures is evenly distributed, and brightness is consistent, does not affect driver's sight line, and safety is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the side view of this utility model reflector
Fig. 3 is the top view of this utility model reflector
Fig. 4 is the side view of this utility model convex lens
Fig. 5 is the top view of this utility model convex lens
In figure:
1, housing 2, circuit control module 3, LED 4, electric wire 5, reflector
6, at the bottom of optical transmission window 7, convex lens 8, dark slide 51, cup 52, wall of cup
521, wall of cup small end 522, the big end of wall of cup 71, plane 72, convex surface 73, cylindrical sides
74, ring surface 741, ring surface inner circle 742, ring surface cylindrical
Detailed description of the invention
As it is shown in figure 1, this utility model one LED light supplement lamp, including housing 1 be arranged on the circuit control within housing 1
Molding block 2 and the LED 3 that power is 5-50W, circuit control module 2 is connected, before housing 1 by electric wire 4 with LED 3
End is provided with reflector 5 and optical transmission window 6, and optical transmission window 6 matches with the outlet of reflector 5 setting, installation on optical transmission window 6
There is convex lens 7.
As shown in Figure 4, Figure 5, convex lens 7 can be diameter and the identical planoconvex lens of optical transmission window 6.The plane of planoconvex lens
71 inject face for light, and the convex surface 72 of planoconvex lens is light outgoing plane, and the horizontal edge of planoconvex lens is interior with optical transmission window 6
Sidewall is connected.The convex surface 72 of planoconvex lens can be hemisphere face, it is also possible to for half ellipsoidal surface.
Can be provided with a lighttight dark slide 8 in the front end of housing 1, dark slide 8 is connected with housing 1, in shading
The middle part of plate 8 is provided with a circular optical transmission window 6, and the edge of convex lens 7 is connected with the medial wall of optical transmission window 6, by convex
Lens 7 are fixedly mounted on optical transmission window 6.Dark slide 8 and convex lens 7 can also be integrally machined molding by glass, in shading
Side within plate 8 housing 1 is covered with photomask.
Convex lens 7 can also include the cylindrical sides 73 perpendicular with plane 71 and the ring surface paralleled with plane 71
74, one end of cylindrical sides 73 is adjacent with plane 71, and the other end of cylindrical sides 73 is connected with ring surface cylindrical 742,
Ring surface inner circle 741 is connected with convex surface 72, and cylindrical sides 73 is connected with the medial wall of optical transmission window 6.Also it is equivalent to
Being provided with a cylinder bottom the planoconvex lens of hemispherical or semielliptical shape, cylindrical being integrally machined with planoconvex lens forms.
The light that part can be penetrated by cylindrical sides 73 and ring surface 74 from planoconvex lens edge reflects through multiple reflections, to reflective
On cup, finally penetrate from the middle part of convex lens 7.Preferably, the radius of ring surface inner circle 741 is ring surface cylindrical 742 radius
80-96%.
The 1/2-1/3 that distance is planoconvex lens focal length between convex lens 7 plane 71 and LED 3.LED 3 is the most polygon
Shape or circle, the center of LED 3 is on the axis of convex lens 7.
Preferably, LED 3 is regular polygon, and the limit number of regular polygon is more than or equal to 4, the drift angle of described regular polygon
With the ring surface cylindrical 742 of convex lens 7 on the same taper seat with convex lens 7 focus as summit.
As shown in Figure 2 and Figure 3, reflector 5 include glass at the bottom of 51 and wall of cup 52, at the bottom of cup, 51 is a circular flat, and wall of cup 52 is one
Frustum of a cone sidewall, at the bottom of cup, between 51 with wall of cup small end 521, smooth excessiveness is connected, and the outlet of reflector 5 is the big end of wall of cup 522, cup
The middle part at the end 51 is provided with the hole matched with LED 3.Wall of cup big end 522 diameter is identical with ring surface cylindrical 742 diameter.
The work process of this example: this utility model LED light supplement lamp is arranged on the monitoring crossbeam of road, light from
In LED 3 after injection, through reflector 5 and the multiple reflections of convex lens 7 or refraction, the light that LED 3 sends is gathered into parallel
Light beam, adjust the installation site of LED light supplement lamp and direction of illumination, make the intense irradiation region of LED light supplement lamp clap with video camera
Take the photograph clear area to overlap.By adjusting the strong illumination of camera shutter suppression automobile front lamp, make the vehicle in monitored picture
Number plate is high-visible.
Above an embodiment of the present utility model is described in detail, but described content is the most of the present utility model
Preferred embodiment, it is impossible to be considered for limiting practical range of the present utility model.All made according to this utility model application range
Impartial change and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (10)
1.LED light compensating lamp, including housing and be arranged on the circuit control module of enclosure interior, LED, the front end of housing is provided with instead
Light cup and optical transmission window, circuit control module is connected with LED, it is characterised in that: described optical transmission window goes out with reflector
Mouth matches setting, and described optical transmission window is provided with convex lens, and the power of described LED is 5-50W.
LED light supplement lamp the most according to claim 1, it is characterised in that: described optical transmission window is circular, and described convex lens is
Diameter planoconvex lens identical with optical transmission window, the plane of described planoconvex lens is that light injects face, the convex surface of described planoconvex lens
For light outgoing plane, the horizontal edge of described planoconvex lens is connected with the medial wall of optical transmission window.
LED light supplement lamp the most according to claim 2, it is characterised in that: the convex surface of described convex lens is hemisphere face or half ellipse
Sphere.
LED light supplement lamp the most according to claim 3, it is characterised in that: described convex lens also includes perpendicular with plane
Cylindrical sides and the ring surface with plane parallel, one end of cylindrical sides is adjacent with plane, another of cylindrical sides
End is connected with ring surface cylindrical, and described ring surface inner circle is connected with convex surface, and described cylindrical sides is interior with optical transmission window
Sidewall is connected.
LED light supplement lamp the most according to claim 4, it is characterised in that: described ring surface inner circle radius is ring surface cylindrical
The 80-96% of radius.
6. according to the LED light supplement lamp described in claim 2-5 any one, it is characterised in that: described convex lens plane and LED
Between the 1/2-1/3 that distance is planoconvex lens focal length.
LED light supplement lamp the most according to claim 6, it is characterised in that: described LED is regular polygon or circle, described
The center of LED is on the axis of convex lens.
LED light supplement lamp the most according to claim 7, it is characterised in that: the limit number of described regular polygon is more than or equal to 4,
The drift angle of described regular polygon and the ring surface cylindrical of convex lens are on the same taper seat with concave lens focus as summit.
9. according to the LED light supplement lamp described in claim 1-5 any one, it is characterised in that: at the bottom of described reflector includes glass and
Wall of cup, is a circular flat at the bottom of described cup, and wall of cup is a frustum of a cone sidewall, is connected with smooth excessiveness between wall of cup small end at the bottom of cup,
The outlet of reflector is the big end of wall of cup, and the middle part at the bottom of cup is provided with the hole matched with LED.
LED light supplement lamp the most according to claim 9, it is characterised in that: described wall of cup outside diameter and the annular of convex lens
Face outside diameter is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075946.0U CN205485220U (en) | 2015-12-21 | 2015-12-21 | Light -emitting diode (LED) fill light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075946.0U CN205485220U (en) | 2015-12-21 | 2015-12-21 | Light -emitting diode (LED) fill light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205485220U true CN205485220U (en) | 2016-08-17 |
Family
ID=56661457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075946.0U Expired - Fee Related CN205485220U (en) | 2015-12-21 | 2015-12-21 | Light -emitting diode (LED) fill light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205485220U (en) |
-
2015
- 2015-12-21 CN CN201521075946.0U patent/CN205485220U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20171221 |