CN104948943B - LED lamp and its reflector - Google Patents
LED lamp and its reflector Download PDFInfo
- Publication number
- CN104948943B CN104948943B CN201410126164.9A CN201410126164A CN104948943B CN 104948943 B CN104948943 B CN 104948943B CN 201410126164 A CN201410126164 A CN 201410126164A CN 104948943 B CN104948943 B CN 104948943B
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- side wall
- led lamp
- light
- sidewall
- angle
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
- F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A kind of LED lamp reflector, it offers horn-like reflection cavity, reflection cavity includes big opening end and the osculum end opposite with big opening end, the light source hole being connected with reflection cavity is offered on osculum end, the cavity wall of reflection cavity is by successively end to end the first side wall, second sidewall, third side wall and the 4th side wall composition, and the first side wall and third side wall are arranged relative to the axisymmetrical of light source hole, second sidewall and the 4th side wall are the cambered surface being bent outwardly, and second sidewall and the 4th side wall are arranged relative to axisymmetrical, the maximum angle of emergence of the light reflected through the first side wall or third side wall is the first side wall or third side wall and optical axis included angle, the maximum angle of emergence of the light reflected through second sidewall or the 4th side wall is the angle of second sidewall and the 4th side wall between the tangent line and axis on light-emitting window.A kind of LED lamp using above-mentioned LED lamp reflector is additionally provided simultaneously.Have beam angle wider using the LED lamp of above-mentioned LED lamp reflector, the larger feature of shadow surface.
Description
Technical field
The present invention relates to lighting engineering, more particularly to a kind of LED lamp and its reflector.
Background technique
Now with the maturation of LED chip and packaging technology, LED luminance requires the need for being sufficient for each lighting area
It asks, LED solid-state lighting has become trend.Compared with conventional lamp, there is LED lamp energy-saving and environmental protection, safety, colour developing to refer to
The performance characteristics such as number is high, the service life is long.The distinguishing features such as LED lamp also has small in size simultaneously, and light efficiency is high, and energy consumption is small.LED lamp
The every field of scientific experiment, production, life is widely applied to its apparent advantage, such as road, tunnel, landscape, room
The application of the illuminators such as interior household, commercial advertisement, industry manufacture.
Luminous from incandescent lamp, metal halid lamp etc. is unlike 360 degree of omnidirectional conventional light sources, for traditional
LED lamp is determined luminous diversity by the structure of its chip package, as Lambertian, Quartering shot type, bat type and light-focusing type are several
Kind.Therefore it in concrete application field, for the industry or national standard for meeting the field, needs to carry out secondary optical design, especially
It is high-power LED light source, so that the illumination range of LED, light distribution, illumination etc. meet the demand of the sector illumination.
Carry out LED application secondary optical design in, due to light emitting angle most of light of LED be without reflector and
What direct irradiation was gone out, this is according to very big at the optical energy loss of LED lamp.
Summary of the invention
Based on this, it is necessary to provide a kind of lesser LED lamp of optical energy loss and its reflector.
A kind of LED lamp reflector, the LED lamp reflector offer horn-like reflection cavity, the reflection cavity packet
Big opening end and the osculum end opposite with the big opening end are included, the big opening end is the light-emitting window of the reflection cavity, the light-emitting window
For rectangle, the light source hole being connected with the reflection cavity is offered on the osculum end, the light source hole is for accommodating LED light
The cavity wall in source, the reflection cavity is made of successively end to end the first side wall, second sidewall, third side wall and the 4th side wall,
The first side wall and the third side wall are planar structure, and the first side wall with the third side wall relative to described
The axisymmetrical of light source hole is arranged, and the first side wall and the third side wall are equal with the angle between the axis, described
Second sidewall and the 4th side wall are the cambered surface being bent outwardly, and the second sidewall and the 4th side wall are relative to institute
Axisymmetrical setting is stated, the second sidewall and the 4th side wall are between the tangent line and the axis on the light-emitting window
Angle is equal；
Wherein, the maximum angle of emergence of the light reflected through the first side wall or the third side wall is the first side wall
Or the third side wall and the optical axis included angle, the maximum of the light reflected through the second sidewall or the 4th side wall are emitted
Angle is the angle of the second sidewall and the 4th side wall between the tangent line and the axis on the light-emitting window.
The angle between the first side wall and the third side wall and the axis is greater than in one of the embodiments,
The angle of the second sidewall and the 4th side wall between the tangent line and the axis on the light-emitting window, and it is less than institute
Twice for stating the angle of second sidewall and the 4th side wall between the tangent line and the axis on the light-emitting window.
The angle between the first side wall and the third side wall and the axis is 60 in one of the embodiments,
± 2 degree, the maximum angle of emergence of the light reflected through the first side wall and the third side wall is 60 ± 2 degree.
The tangent line and institute of the second sidewall and the 4th side wall on the light-emitting window in one of the embodiments,
Stating the angle between axis is 44 ± 2 degree, the maximum angle of emergence of the light reflected through the second sidewall and the 4th side wall
It is 44 ± 2 degree.
The opposite sides of the outer surface of the LED lamp reflector is equipped with positioning column in one of the embodiments, institute
One end integrated setting of positioning column is stated on the outer surface of the reflector, the other end of the positioning column is equipped with inner bolt hole.
Two positioning columns are respectively arranged on the first side wall and the third side wall in one of the embodiments,
Outside, and the positioning column is located at the periphery of the light-emitting window.
The LED lamp reflector is made of ABS material in one of the embodiments,.
A kind of LED lamp, comprising:
Above-mentioned LED lamp reflector；And
The LED light source is contained in the light source hole, the optical axis weight of the axis of the light source hole and the LED light source
It closes, the light of the LED light source is reflected through the LED lamp reflector, is emitted from the light-emitting window.
The LED light source includes LED lamp bead and substrate in one of the embodiments, and the substrate is set to the light
In source aperture, the LED lamp bead is set on the substrate, and the light that the LED light source issues is reflected through the LED lamp reflector
120 ± 5 × 90 ± 5 degree of hot spot is formed afterwards.
In above-mentioned LED lamp, pass through the first side wall, second sidewall, the third side wall and the 4th on its LED lamp reflector
The light that side wall issues LED light source reflects, and ultimately forms the hot spot that one and half light intensity angles are 120 ± 5 × 90 ± 5 degree, light
Beam angle is wider, and shadow surface is larger, and illumination is more uniform, and then reduces the loss of luminous energy.
Detailed description of the invention
Fig. 1 is the explosive view of LED lamp in present pre-ferred embodiments；
Fig. 2 is the structural schematic diagram of LED lamp reflector in LED lamp shown in FIG. 1；
Fig. 3 is the cross-sectional view of LED lamp reflector in LED lamp shown in FIG. 1；
Fig. 4 is the cross-sectional view of another angle of LED lamp reflector in LED lamp shown in FIG. 1；
Fig. 5 is the curve of light distribution figure of LED lamp shown in FIG. 1；
Fig. 6 is the Illumination Distribution figure of LED lamp shown in FIG. 1；
Fig. 7 is the distribution curve of illumination figure of LED lamp shown in FIG. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to Fig. 1, the LED lamp 10 in present pre-ferred embodiments, including LED lamp reflector 100 and LED light source
200。
Referring to Figure 2 together, LED lamp reflector 100 offers horn-like reflection cavity 110.Reflection cavity 110 includes big
Mouth end 111 and the osculum end 113 opposite with big opening end 111.Big opening end 111 is the light-emitting window of reflection cavity 110, and light-emitting window is square
Shape.The light source hole 113a being connected with reflection cavity 110 is offered on osculum end 113.Light source hole 113a is for accommodating LED light source
The axis of 200, light source hole 113a and the optical axis coincidence of LED light source 200.The light that LED light source 200 issues is through reflection cavity 110
It is projected after cavity wall reflection from light-emitting window.
Specifically in the present embodiment, LED lamp reflector 100 is by ABS(acrylonitrile-butadiene-styrene copolymer
Acrylonitrile butadiene Styrene copolymers) material is made.ABS material has high-intensitive, low weight
The characteristics of.This kind of material is opaque material, nontoxic, tasteless, and has tough, hard, rigid characteristic concurrently.Therefore, LED lamp reflects
Device 100 has stronger hardness and rigidity, guarantees the service life of LED lamp reflector 100.
The cavity wall of reflection cavity 110 is by successively end to end the first side wall 115a, second sidewall 115b, third side wall 115c
And the 4th side wall 115d composition.The first side wall 115a and third side wall 115c is planar structure, second sidewall 115b and the 4th
Side wall 115d is the cambered surface being bent outwardly.The top side of the first side wall 115a and third side wall 115c correspond to going out for rectangle
Optical port short side.The top side of second sidewall 115b and the 4th side wall 115d correspond to the light-emitting window long side of rectangle.
Also referring to Fig. 3, the first side wall 115a and third side wall 115c is set relative to the axisymmetrical of light source hole 113a
It sets.Angle between the first side wall 115a and third side wall 115c and axis is equal.Through the first side wall 115a or third side wall
The maximum angle of emergence of the light of 115c reflection is the first side wall 115a or third side wall 115c and optical axis included angle.
Referring to Figure 4 together, second sidewall 115b and the 4th side wall 115d is the cambered surface being bent outwardly.Second sidewall
115b and the 4th side wall 115d is arranged relative to axisymmetrical.The distance between second sidewall 115b and the 4th side wall 115d are by small
Mouth end 113 is gradually increased to 111 direction of big opening end.The tangent line and axis of second sidewall 115b and the 4th side wall 115d on light-emitting window
Angle between line is equal.The maximum angle of emergence of the light of second sidewall 115b or the 4th side wall 115d reflection is second sidewall
The angle of 115b and the 4th side wall 115d between the tangent line and axis on light-emitting window.
Angle between the first side wall 115a and third side wall 115c and axis is greater than second sidewall 115b and the 4th side wall
Angle of the 115d between the tangent line and axis on light-emitting window, and it is less than second sidewall 115b and the 4th side wall 115d in light out
Twice of the angle between tangent line and axis on mouth.
Specifically in the present embodiment, the angle between the first side wall 115a and third side wall 115c and axis is 60 ± 2 degree,
The maximum angle of emergence of the light reflected through the first side wall 115a and third side wall 115c is 60 ± 2 degree, so that LED light source 200 is sent out
Light out is emitted to substantially 120 degree of angle of area after the first side wall 115a of reflection cavity 110 and third side wall 115c reflection
In domain.
The angle of second sidewall 115b and the 4th side wall 115d between the tangent line and axis on light-emitting window is 44 ± 2 degree,
The maximum angle of emergence of the light reflected through second sidewall 115b and the 4th side wall 115d is 44 ± 2 degree, so that LED light source 200 is sent out
Light out is emitted to substantially 90 degree of angle of region after the second sidewall 115b of reflection cavity 110 and the 4th side wall 115d reflection
Interior, the light for finally issuing above-mentioned LED forms 120 × 90 degree of hot spot after reflection cavity 110.
It is appreciated that angle is not limited to 60 between the first side wall 115a and third side wall 115c and the optical axis of LED light source 200
± 2 degree, it can determine and be pressed from both sides between the first side wall 115a and third side wall 115c and the optical axis of LED light source 200 according to light distribution needs
Angle size.Meanwhile second sidewall 115b and the 4th side wall 115d are between the tangent line on light-emitting window and the optical axis of LED light source 200
Angle is not limited to 44 ± 2 degree, can determine second sidewall 115b and the 4th side wall 115d on light-emitting window according to light distribution needs
The size of angle between tangent line and axis.
It should be pointed out that the shape of LED lamp reflector 100 can be the shapes such as fang platform or rotary table.Specifically at this
In embodiment, LED lamp reflector 100 is also substantially horn-like, and the middle part of LED lamp reflector 100 offers horn-like
Reflection cavity 110, the shape of reflection cavity 110 and the shape of LED lamp reflector 100 match.Meanwhile above-mentioned LED lamp is anti-
Emitter 100 can also be made of other materials, be not limited to ABS material.
Referring to Fig. 1, LED light source 200 includes LED lamp bead 210 and substrate 230.Substrate 230 is set to light source hole
In 113a, LED lamp bead 210 is set on substrate 230.
Referring to Fig. 3, the opposite sides of the outer surface of LED lamp reflector 100 is equipped with positioning column 130.Positioning
For one end integrated setting of column 130 on the outer surface of reflector, the other end of positioning column 130 is equipped with inner bolt hole.LED lamp is anti-
Emitter 100 can positioning column 130 by threaded fastener and thereon be fixed in external fixator, such as LED lamp 10
Lamp housing.Threaded fastener wears the lamp housing of LED lamp 10, and is screwed with the inner bolt hole on positioning column 130, to realize to LED
The installation of lamp reflector 100.
Specifically in the present embodiment, LED lamp reflector 100 is substantially compatible with reflection cavity 110 horn-like, and two
A positioning column 130 is respectively arranged on the outside of the first side wall 115a and third side wall 115c, and positioning column 130 is located at the week of light-emitting window
Edge.The axisymmetrical of two 130 facing light sources hole 113a of positioning column, to facilitate installation and alignment to LED lamp reflector 100
Deng operation.
It is appreciated that LED lamp reflector 100 can also be directly fixed in external fixator by long spiro nail, at this time
Positioning column 130 can also save.
It uses the LED(power of Cree XP-E for 3W), is mounted on LED lamp reflector 100, to reflect LED lamp
Device 100 carries out simulation light distribution, please refer to fig. 5, its corresponding light distribution in 1 meter of remote test position as shown in figure 5, measure
Highest illuminance can achieve 45lux.And the LED lamp 10 forms long 3 meters, wide 2 meters of hot spot.Meanwhile above-mentioned LED light
It is as shown in FIG. 6 and 7 to have 10 Illumination Distributions, it can be seen that the hot spot of above-mentioned LED lamp 10 meets uniform illumination requirement.
Therefore, in road curb lamp, greening street lamp, the practical applications such as garden landscape street lamp, above-mentioned LED lamp 10 meet shadow surface it is big,
The light distributions demand such as uniform-illumination, improves the utilization rate of luminous energy.
In above-mentioned LED lamp 10, by the first side wall 115a on its LED lamp reflector 100, second sidewall 115b,
The light that third side wall 115c and the 4th side wall 115d issue LED light source 200 reflects, and ultimately forms one and half light intensity angles and is
120 ± 5 × 90 ± 5 degree of hot spot, beam angle is wider, and shadow surface is larger, and illumination is more uniform, and then reduces the damage of luminous energy
It loses.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of LED lamp reflector, which is characterized in that the LED lamp reflector offers horn-like reflection cavity, described
Reflection cavity includes big opening end and the osculum end opposite with the big opening end, and the big opening end is the light-emitting window of the reflection cavity, institute
Stating light-emitting window is rectangle, the light source hole being connected with the reflection cavity is offered on the osculum end, the light source hole is for receiving
Hold LED light source, the cavity wall of the reflection cavity is by successively end to end the first side wall, second sidewall, third side wall and the 4th side
Wall composition, the first side wall and the third side wall are planar structure, and the first side wall and the third side wall phase
Axisymmetrical setting for the light source hole, the angle phase between the first side wall and the third side wall and the axis
It is the cambered surface being bent outwardly Deng, the second sidewall and the 4th side wall, and the second sidewall and the 4th side wall
It is arranged relative to the axisymmetrical, the tangent line of the second sidewall and the 4th side wall on the light-emitting window and the axis
Angle between line is equal；
Wherein, the maximum angle of emergence of the light reflected through the first side wall or the third side wall is the first side wall or institute
The angle between third side wall and the axis is stated, the maximum of the light reflected through the second sidewall or the 4th side wall goes out
Firing angle is the angle of the second sidewall and the 4th side wall between the tangent line and the axis on the light-emitting window；
Angle between the first side wall and the third side wall and the axis is greater than the second sidewall and the described 4th
Angle of the side wall between the tangent line and the axis on the light-emitting window, and it is less than the second sidewall and the 4th side
Twice of angle of the wall between the tangent line and the axis on the light-emitting window；
Angle between the first side wall and the third side wall and the axis is 60 ± 2 degree, through the first side wall and
The maximum angle of emergence of the light of the third side wall reflection is 60 ± 2 degree；
The angle of the second sidewall and the 4th side wall between the tangent line and the axis on the light-emitting window is 44 ± 2
Degree, the maximum angle of emergence of the light reflected through the second sidewall and the 4th side wall are 44 ± 2 degree.
2. LED lamp reflector according to claim 1, which is characterized in that the outer surface of the LED lamp reflector
Opposite sides is equipped with positioning column, and one end integrated setting of the positioning column is described fixed on the outer surface of the reflector
The other end of position column is equipped with inner bolt hole.
3. LED lamp reflector according to claim 2, which is characterized in that two positioning columns are respectively arranged on described
The outside of the first side wall and the third side wall, and the positioning column is located at the periphery of the light-emitting window.
4. LED lamp reflector according to claim 1, which is characterized in that the LED lamp reflector is by ABS material
It is made.
5. a kind of LED lamp characterized by comprising
LED lamp reflector as described in Claims 1 to 4 any one；And
The LED light source is contained in the light source hole, the optical axis coincidence of the axis of the light source hole and the LED light source, institute
The light for stating LED light source is reflected through the LED lamp reflector, is emitted from the light-emitting window.
6. LED lamp according to claim 5, which is characterized in that the LED light source includes LED lamp bead and substrate, described
Substrate is set in the light source hole, and the LED lamp bead is set on the substrate, described in the light warp that the LED light source issues
120 ± 5 × 90 ± 5 degree of hot spot is formed after the reflection of LED lamp reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126164.9A CN104948943B (en) | 2014-03-28 | 2014-03-28 | LED lamp and its reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126164.9A CN104948943B (en) | 2014-03-28 | 2014-03-28 | LED lamp and its reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948943A CN104948943A (en) | 2015-09-30 |
| CN104948943B true CN104948943B (en) | 2019-01-15 |
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ID=54163842
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126164.9A Active CN104948943B (en) | 2014-03-28 | 2014-03-28 | LED lamp and its reflector |
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| Country | Link |
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| CN (1) | CN104948943B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761808A (en) * | 2010-02-05 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED lighting lamp |
| US20110273894A1 (en) * | 2006-01-05 | 2011-11-10 | Illumitex, Inc. | Separate Optical Device for Directing Light from an LED |
| CN102466201A (en) * | 2010-11-16 | 2012-05-23 | 海洋王照明科技股份有限公司 | Lamp reflector and portable lamp |
| CN203442682U (en) * | 2013-07-12 | 2014-02-19 | 蒋建华 | Light reflector with long-distance light projection |
-
2014
- 2014-03-28 CN CN201410126164.9A patent/CN104948943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110273894A1 (en) * | 2006-01-05 | 2011-11-10 | Illumitex, Inc. | Separate Optical Device for Directing Light from an LED |
| CN101761808A (en) * | 2010-02-05 | 2010-06-30 | 海洋王照明科技股份有限公司 | LED lighting lamp |
| CN102466201A (en) * | 2010-11-16 | 2012-05-23 | 海洋王照明科技股份有限公司 | Lamp reflector and portable lamp |
| CN203442682U (en) * | 2013-07-12 | 2014-02-19 | 蒋建华 | Light reflector with long-distance light projection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948943A (en) | 2015-09-30 |
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