CN205402366U - Low -power LED light filling lamp - Google Patents
Low -power LED light filling lamp Download PDFInfo
- Publication number
- CN205402366U CN205402366U CN201521074741.0U CN201521074741U CN205402366U CN 205402366 U CN205402366 U CN 205402366U CN 201521074741 U CN201521074741 U CN 201521074741U CN 205402366 U CN205402366 U CN 205402366U
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- Prior art keywords
- cup
- wall
- light
- convex lens
- led
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Abstract
The utility model provides a low -power LED light filling lamp, including casing and circuit control module, the LED lamp of setting in casing inside, the front end of casing is equipped with reflection of light cup and diaphanous window, and circuit control module and LED lamp are connected, is the power of LED lamp 5 50W, the setting that reflection of light cup exports and diaphanous window cooperatees, reflection of light cup is including bottom of cup and wall of cup, the bottom of cup is a circular plane, and the wall of cup is a frustum of a cone lateral wall, level and smoothly between bottom of cup and the wall of cup tip excessively is connected, and the export of reflecting light glass is the wall of cup main aspects, and the middle part of bottom of cup is equipped with the hole with LED lamp matched with. The beneficial effects of the utility model are that this LED light filling lamp 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
The utility model belongs to monitoring camera field of illuminating device, especially relates to a kind of low-power 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 lamp LED (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 traffic 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 reflective mirror forms a strip illuminator that can launch strip light with flash lamp tube, can send out
The shell end of the strip illuminator front portion penetrating strip light is fixed with 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 operating 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 demand 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:
Low-power LED light supplement lamp, including housing and be arranged on the circuit control module of enclosure interior, LED, before housing
End is provided with reflector and optical transmission window, and circuit control module is connected with LED, and the power of described LED is 5-50W, described
Reflector outlet matches with optical transmission window setting, at the bottom of described reflector includes glass and wall of cup, is a circular flat at the bottom of described cup,
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, and the outlet of reflector is the big end of wall of cup, at the bottom of cup
Middle part be provided with the hole matched with LED.
Light emitted by LED is concentrated the light beam becoming parallel by reflector, makes LED also can under relatively low power
More visible light filling effect is enough provided.At the bottom of the utility model LED and cup at grade, the light that part is mapped on wall of cup
Line, through the multiple reflections of wall of cup, at the bottom of eventually impinging glass on, from the parallel light formed by the refraction at the bottom of cup at the bottom of being perpendicular to glass
Bundle.The utility model LED light supplement lamp light in irradiation area is soft and is evenly distributed.Will not due to light change and impact department
The sight line of machine, security is high.
Described reflector also includes installing fin, installs smooth excessiveness between one end end big with wall of cup of fin and is connected, peace
The other end of dress fin is connected with housing.
Can be affixed directly on housing at the bottom of reflector cup, it is also possible to wall of cup be provided around install fin, by peace
Dress fin is connected with housing.The smooth excessiveness installed between fin end big with wall of cup is connected, it is also possible to changes and is radiated at connection
The radiation direction at place, makes to concentrate in the middle part of light alignment reflector.
Described installation fin is paralleled with at the bottom of cup, and described installation fin closes with the matching form of housing, described installation fin
Middle part be provided with a diameter more than the circular hole of the big end of wall of cup, between described circular hole end big with wall of cup, smooth excessiveness is connected, described
Fixing between outer ledge and the housing of fin connection is installed.
The outer ledge of described installation fin is provided with installing hole, and the edge of described housing is provided with the female screw thread of band
Hole, described installation fin is bolted and is fixed on housing.
Easy installation and removal with bolts, is connected firmly and easy access.
At the bottom of described cup, wall of cup and installation fin be integrally machined shaping.
The cup end, wall of cup and installation fin can be directly integrally machined shaping by the metal material that ductility is good.Can also be by
Plastics or other macromolecular materials use mold injection to form.Then at the bottom of cup, be coated with reflective painting on wall of cup and installation fin
Layer.Preferably employing aluminium foil direct pressing to form, preparation is simple, and production cost is low.
Described optical transmission window is provided with convex lens, and described convex lens are diameter planoconvex spotlight identical with optical transmission window, described
The plane of planoconvex spotlight is that light injects face, and the convex surface of described planoconvex spotlight is light outgoing plane, the plane of described planoconvex spotlight
Edge is connected with the madial wall of optical transmission window, and the convex surface of described convex lens is hemisphere face or half ellipsoidal surface.
Convex lens match with reflector to concentrate the light dissipated emitted by LDE lamp becomes parallel rays, makes irradiation
In the range of light be evenly distributed, brightness is consistent.The source light that the utility model LED light supplement lamp is provided is soft, driver
In driving procedure, the light luminance that driver does not exists together with LED distance is consistent, will not affect driver due to light change
Sight line, causes security incident.
Described convex lens also include 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 ring surface cylindrical, and described ring surface inner circle is with convex
Face is connected, and described cylindrical sides is connected with the madial wall of optical transmission window, described wall of cup outside diameter and the ring of convex lens
Shape face outside diameter is identical.
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.
The utility model researcher 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 spotlight focal length between at the bottom of described convex lens plane and reflector cup.
At the bottom of LED is arranged on glass, thus the distance be equivalent between convex lens plane and LED to be planoconvex spotlight burnt
Away from 1/2-1/3.
Described LED is regular polygon or circle, and the center of described LED is on the axis of convex lens, described the most polygon
The limit number of shape is more than or equal to 4, and the drift angle of described regular polygon and the ring surface cylindrical of convex lens are same burnt with convex lens
On the some taper seat for summit.
So can be further ensured that by the light of convex lens be directional light, and uniform light is soft in irradiation area.
The front end of described housing is additionally provided with shadow shield, and shadow shield is connected with housing, and shadow shield is provided with optical transmission window.
The light being provided for guarantee LED injection of shadow shield is all through convex lens.
The 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 security is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the side view of the utility model reflector
Fig. 3 is the top view of the utility model reflector
Fig. 4 is the side view of the utility model convex lens
Fig. 5 is the top view of the 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, shadow shield 51, cup 52, wall of cup
53, fin 521, wall of cup small end 522, the big end of wall of cup 71, plane 72, convex surface are installed
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, the utility model one low-power LED light supplement lamp, including housing 1 be arranged within housing 1
Circuit control module 2 and the LED 3 that power is 5-50W, circuit control module 2 is connected, at shell by electric wire 4 with LED 3
The front end of body 1 is provided with reflector 5 and optical transmission window 6, and optical transmission window 6 matches with the outlet of reflector 5 setting.Such as Fig. 2, Fig. 3
Shown in, 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 the centre of 51 at the bottom of cup is provided with one and LED
The hole that lamp 3 matching form closes, LED 3 is arranged in hole.Wall of cup 52 is a frustum of a cone sidewall, at the bottom of cup 51 with wall of cup small end 521 it
Between smooth excessiveness connect, at the bottom of cup between 51 and wall of cup small end 521 exist an annular cambered surface, the outlet of reflector 5 is wall of cup
Big end 522.Reflector 5 can be affixed directly at the internally installed LED of housing 13.Reflector 5 can also include installing fin
53, it is connected with housing 1 by installing fin 53.Smooth excessiveness between fin 53 one end end big with wall of cup 522 is installed be connected, peace
The other end of dress fin 53 is connected with housing 1.Install fin 53 can be parallel with at the bottom of cup 51 and with the shape phase of housing 1
The plane coordinated, is provided with the diameter circular hole more than the big end of wall of cup 522, circular hole and the big end of wall of cup at the middle part installing fin 53
Between 522, smooth excessiveness connects, and installs fixing between outer ledge and the housing 1 of fin 53 connection.Fin 53 can be installed
Outer ledge be provided with installing hole, be provided with the female screwed hole of band at the edge of housing, fin 53 be installed by bolt even
Connect and be fixed on housing 1.
The cup end 51, wall of cup 53 and installation fin 53 can be integrated machine-shaping.Reflector 5 can be by the good gold of ductility
Belong to material and be directly integrally machined shaping, it is also possible to used mold injection to form by plastics or other macromolecular materials, be then coated with
Upper reflecting coating.Preferably employ aluminium foil directly to process, the ductility requirement of processing can either be met, be made without again anti-
The coating process of light coating, preparation is simple, and production cost is low.
On the optical transmission window 6 of the utility model LED light supplement lamp, convex lens 7 can be installed.As shown in Figure 4, Figure 5, convex lens
Mirror 7 can be diameter and the identical planoconvex spotlight of optical transmission window 6.The plane 71 of planoconvex spotlight injects face for light, planoconvex spotlight
Convex surface 72 is light outgoing plane, and the horizontal edge of planoconvex spotlight is connected with the madial wall of optical transmission window 6.The convex surface of planoconvex spotlight
72 can be hemisphere face, it is also possible to for half ellipsoidal surface.
Can be provided with a lighttight shadow shield 8 in the front end of housing 1, shadow shield 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 madial wall of optical transmission window 6, by convex
Lens 7 are fixedly mounted on optical transmission window 6.Shadow shield 8 and convex lens 7 can also be integrally machined shaping by glass, in shading
One end 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 madial wall of optical transmission window 6.Also it is equivalent to
Being provided with a cylinder bottom the planoconvex spotlight of hemispherical or semielliptical shape, cylindrical being integrally machined with planoconvex spotlight forms.
The light that part can be penetrated by cylindrical sides 73 and ring surface 74 from planoconvex spotlight 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%.
Distance between convex lens 7 plane 71 and LED 3, namely distance between 51 at the bottom of convex lens 7 plane 71 and cup
1/2-1/3 for convex lens 7 focal length.LED 3 is regular polygon or circle, and 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.
The course of work of this example: the 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 the utility model application range
Impartial change and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (7)
1. low-power LED light supplement lamp, including housing and be arranged on the circuit control module of enclosure interior, LED, the front end of housing
Being provided with reflector and optical transmission window, circuit control module is connected with LED, it is characterised in that: the power of described LED is 5-
50W, the outlet of described reflector matches with optical transmission window setting, at the bottom of described reflector includes glass and wall of cup, is one at the bottom of described cup
Circular flat, 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, and the outlet of reflector is wall of cup
Big end, the middle part at the bottom of cup is provided with the hole matched with LED, and described optical transmission window is provided with convex lens, and described convex lens are straight
Footpath planoconvex spotlight identical with optical transmission window, the plane of described planoconvex spotlight is that light injects face, and the convex surface of described planoconvex spotlight is
Light outgoing plane, the horizontal edge of described planoconvex spotlight is connected with the madial wall of optical transmission window, and the convex surface of described convex lens is
Hemisphere face or half ellipsoidal surface, described convex lens also include the cylindrical sides perpendicular with plane and the annular with plane parallel
Face, one end of cylindrical sides is adjacent with plane, and the other end of cylindrical sides is connected with ring surface cylindrical, described ring surface
Inner circle is connected with convex surface, and described cylindrical sides is connected with the madial wall of optical transmission window, and described wall of cup outside diameter is with convex
The ring surface outside diameter of lens is identical, and described ring surface inner circle radius is the 80-96% of ring surface exradius.
Low-power LED light supplement lamp the most according to claim 1, it is characterised in that: described reflector also includes installing fin,
Installing smooth excessiveness between one end end big with wall of cup of fin to be connected, the other end installing fin is connected with housing.
Low-power LED light supplement lamp the most according to claim 2, it is characterised in that: described installation fin is paralleled with at the bottom of cup,
Described installation fin closes with the matching form of housing, and the middle part of described installation fin is provided with the diameter circle more than the big end of wall of cup
Hole, between described circular hole end big with wall of cup, smooth excessiveness is connected, the company of fixing between outer ledge and the housing of described installation fin
Connect.
Low-power LED light supplement lamp the most according to claim 3, it is characterised in that: the outer ledge of described installation fin sets
Having installing hole, the edge of described housing to be provided with the female screwed hole of band, described installation fin is bolted and is fixed on
On housing.
Low-power LED light supplement lamp the most according to claim 4, it is characterised in that: at the bottom of described cup, wall of cup and installation fin one
Body machine-shaping.
Low-power LED light supplement lamp the most according to claim 1, it is characterised in that: described convex lens plane and reflector cup
Distance at the end is the 1/2-1/3 of planoconvex spotlight focal length.
Low-power LED light supplement lamp the most according to claim 1, it is characterised in that: described LED is regular polygon or circle
Shape, the center of described LED is on the axis of convex lens, and the limit number of described regular polygon is more than or equal to 4, described regular polygon
Drift angle and the ring surface cylindrical of convex lens on the same taper seat with concave lens focus as summit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074741.0U CN205402366U (en) | 2015-12-21 | 2015-12-21 | Low -power LED light filling lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074741.0U CN205402366U (en) | 2015-12-21 | 2015-12-21 | Low -power LED light filling lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205402366U true CN205402366U (en) | 2016-07-27 |
Family
ID=56449515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521074741.0U Expired - Fee Related CN205402366U (en) | 2015-12-21 | 2015-12-21 | Low -power LED light filling lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205402366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907612A (en) * | 2015-12-21 | 2017-06-30 | 威海市公安局文登分局 | Low-power LED light supplement lamp |
-
2015
- 2015-12-21 CN CN201521074741.0U patent/CN205402366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907612A (en) * | 2015-12-21 | 2017-06-30 | 威海市公安局文登分局 | Low-power LED light supplement lamp |
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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 |
Granted publication date: 20160727 Termination date: 20171221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |