CN102840490B - Light emitting diode (LED) illuminating lamp with circular light spot changed to be ellipse light spot and optical designing method - Google Patents
Light emitting diode (LED) illuminating lamp with circular light spot changed to be ellipse light spot and optical designing method Download PDFInfo
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- CN102840490B CN102840490B CN201210362759.5A CN201210362759A CN102840490B CN 102840490 B CN102840490 B CN 102840490B CN 201210362759 A CN201210362759 A CN 201210362759A CN 102840490 B CN102840490 B CN 102840490B
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Abstract
The invention discloses a light emitting diode (LED) floodlight with a circular light spot changed to be an ellipse light spot and an optical designing method. The LED floodlight mainly consists of three groups of LED light source modules; each of the irradiating light spots of every group of the LED light source module is in the shape of a circle with the same dimension, and the light intensity of the light spot is gradually reduced from the center to the periphery; every group of the LED light source module consists of more than one LED light source module, wherein one group of LED light source module is fixed without movement, another two groups of LED light source modules can be overturned within a certain angle, so that the center of the circular light spot formed by three groups of LED light source modules is located on one straight line; another two circular light spots can move towards two sides at the same direction along the straight line, thereby realizing the transformation between the circular light spot and the ellipse light spot. By adopting the floodlight and the design method, the transformation among different shapes of the light spots can be realized on one lamp structure to meet the special using requirement.
Description
Technical field
The present invention relates to a kind of LED illumination lamp, more particularly, it relates to a kind of hot spot can be ellipse by circular transform
LED illumination lamp and its optical design method.
Background technology
As LED more and more applies the illumination in the lighting of every field, to LED illumination lamp as light source
Require also more and more higher.Such as, some application scenarios need circular irradiation hot spot, some application scenarios to need square irradiation
Hot spot, the application scenario also having need oval irradiation hot spot, etc..For the LED illumination with single irradiation light spot shape
Lamp and its optical design method such as realize single circular or ellipse-shaped light in the more of current field of LED illumination appearance
Speckle.But in the application scenario having, then need to irradiate the change that hot spot can do certain rule.Such as a kind of emerging railway letter
Signal lamp, it is desirable to oval irradiation hot spot can be transformed to as requested from initial circular irradiation hot spot.It is this can be in difference
The functional requirement for entering line translation between light spot shape realizes also seldom occurring in field of LED illumination on a light fixture at present.
The content of the invention
The present invention is solution above-mentioned technical problem, there is provided a kind of circular light spot is changed into the LED illumination lamp of oval hot spot, energy
It is enough to realize the conversion between different light spot shapes is realized on a fitting structure, to meet special use requirement.
The present invention also provides the optical design method that a kind of circular light spot is changed into the LED illumination lamp of oval hot spot, passes through
The method, it is possible to achieve the oval spot-shape of conversion needed for arbitrarily, it is simple and convenient.
To reach above-mentioned purpose, the technical solution used in the present invention is as follows：
Circular light spot is changed into the LED illumination lamp of oval hot spot, is mainly made up of three groups of LED light source modules, described every
The irradiation hot spot of group LED light source module is that size is identical, the circle that light intensity is successively decreased from center to periphery, every group of LED light
Source module is made up of more than one LED light source module, and one of which LED light source module is maintained static, remaining two groups of LED light
Source module can be overturn in certain angle, so that the center of circle of circular light spot formed by three groups of LED light source modules is located at
On straight line, and two of which circular light spot can along described straight line to opposite two side shifting, realize circular light spot with it is ellipse
Conversion between circular light spot.
Three groups of LED light source modules surround a circular lamp panel, wherein two groups of LED light source modules that can do flip-flop movement
Pacify positioned at two side positions of the fixed LED light source module, and the LED light source module for each being included adjacent to each other
Dress.
The quantity of the LED light source module included by every group of LED light source module is identical with composition.
The upset of the LED light source module realizes that by a switching mechanism switching mechanism includes：Screw mandrel,
Silk braid outside screw mandrel, the screw mandrel lower end arrange the motion of an end motion for being used to drive LED light source module, the fortune
Motivation structure can move up and down with screw mandrel, so as to the one end for driving LED light source module moves up and down；The silk braid lower end,
The periphery of the motion arranges one to be used to connect the connecting seat of LED light source module rotating hinge, the LED light source module
One end with screw mandrel screw move up and down while, the LED light source module can be spun upside down around the rotating hinge.
Also include for controlling the current controller of every group of LED light source module input current.
Circular light spot is changed into the optical design method of the LED illumination lamp of oval hot spot, using above-mentioned LED illumination lamp,
The movement of the circular light spot formed by three groups of LED light source modules is changed into the effect of oval hot spot realizing circular light spot
Really, design procedure is as follows：
First, by the flip angle of adjustment two groups of LED light source modules, make three groups of LED light source modules institute shape
Into three initial circular single-spots overlap on the initial circular hot spot of predetermined illuminating lamp；
Then, two groups of LED light source modules are overturn, is always positioned at three circular light spots its center of circle in moving process
On straight line, and two circular light spots being formed of two groups of LED light source modules respectively along the straight line to the fixation not
Opposite two side shifting of the fixed circular light spot formed by that group of dynamic LED light source module；
It is in above-mentioned hot spot moving process, described two to determine according to the size of the oval hot spot of required conversion
Circular light spot relative to amount of movement from the fixed circular light spot to opposite two side shifting.
In the major axis of the oval hot spot for requiring to be transformed into relative to the angle of light fixture it is, the distance of light fixture and face to be illuminated
For, the radius of initial circular hot spot isWhen, described two circular light spots are respectively along the straight line to the fixed circular light spot
Opposite two side shifting when amount of movement。
The technical solution adopted in the present invention, when initial circular hot spot is formed, first by adjusting two groups of LED light source moulds
The angle that group is overturn in vertical direction so that three circular light spots coincide together.Then make to form center irradiation hot spot
One LED light source module is maintained static, make the irradiation hot spot formed by two other LED light source module relative to center spot to
Opposite both sides move towards, and the center of circle of three circular light spots is always positioned on straight line when mobile.So that initial circular
Hot spot is transformed to oval hot spot.The movement of this hot spot is also to make LED light source mould by certain structure is designed on light fixture
Group is done in certain angle and overturns to realize.The size of the angular range of the upset and the oval hot spot of required conversion it
Between set up mutual relation.Therefore, it is without pole-change that method for designing provided by the present invention can cause the conversion of this hot spot
The variation of form, or fixed value.Meanwhile, in order that in conversion process the illumination of hot spot be unlikely to occur it is womp
Or prominent dark situation, the rule that the circular light spot that three LED light source modules are formed successively decreases from center to periphery according to luminous intensity.
Equally, above-mentioned rule is also realizing by being controlled to the angle that LED light source module overturns, it is also possible to while using control
The method of the input current on LED light source module processed is coordinating realization.In order to the structure and optics that reduce LED illumination lamp set
The complexity of meter, makes three groups of LED light source modules surround a circular lamp panel, wherein two groups of LED light source modules for being capable of flip-flop movement
The LED light source module for each being included is mounted adjacent.That is, the LED light source mould in the LED light source module that can be overturn per group
Block is near installation.
Description of the drawings
Fig. 1 is the structural representation of LED illumination lamp of the present invention；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is profiles of the Fig. 2 along B-B direction；
Fig. 4（1）It is single-spot schematic diagram when three LED light source modules irradiate respectively in Fig. 2；
Fig. 4（2）It is that two groups of LED light source modules are located at the initial circular hot spot schematic diagram irradiated during a of position in Fig. 3；
Fig. 5（1）It is Fig. 4（1）The single-spot surface of intensity distribution；
Fig. 5（2）It is Fig. 4（2）The initial circular hot spot surface of intensity distribution；
Fig. 6 is that two groups of LED light source modules are located at the oval hot spot schematic diagram irradiated during the b of position in Fig. 3；
Fig. 7 is that two groups of LED light source modules are located at the oval hot spot schematic diagram irradiated during the c of position in Fig. 3；
Fig. 8 is the oval hot spot surface of intensity distribution of Fig. 7；
Fig. 9 is to determine the method schematic diagram of hot spot amount of movement.
Specific embodiment
One is done to LED illumination lamp provided by the present invention and optical design method below by way of the drawings and specific embodiments
Detailed description.
Fig. 1, Fig. 2 are the structural representations of the LED illumination lamp that circular light spot disclosed by the invention is changed into oval hot spot.By
Three groups of LED light source module compositions.In the present embodiment, every group of LED light source module 11,12 is made up of two LED light source modules 1,
And three groups of LED light source modules surround a circular lamp panel.The quantity of specifically used LED light source module 1 can be according to the power of light fixture
Size and dimensional requirement are determining.
In three groups of LED light source modules, one of which LED light source module 11 is maintained static, remaining two groups of LED light source module
12 can do flip-flop movement in certain angle by the switching mechanism 10 arranged on light fixture.This two groups can be done flip-flop movement
LED light source module that LED light source module 12 is included 1 is adjacent to each other near installing, to reduce the complexity of fitting structure, and just
Just control it.
Shown in Fig. 3, switching mechanism 10 includes：7 are threaded on screw mandrel 2, screw mandrel 2, outside screw mandrel 2, silk braid 3 is set with.Screw mandrel
2 lower end connects a motion 4.A termination of LED light source module 12 is fixed on motion 4.Exist screw mandrel 2 is screwed
When moving up and down in silk braid 3, motion 4 can move up and down with screw mandrel 2, but motion 4 does not do rotation fortune with screw mandrel 2
It is dynamic.The up and down motion of motion 4 drives one end of LED light source module to move up and down.In the lower end of silk braid 3, motion 4
Periphery is installed by one connecting seat 5.Connecting seat 5 is used for the rotating hinge 6 for installing LED light source module 12.Moved up and down in screw mandrel 2
In journey, connecting seat 5 is maintained static, one end of LED light source module 12 with screw mandrel 2 screw move up and down when, can be around rotation pivot
Axle 6 does upper and lower flip-flop movement.The diverse location of three LED light source module upsets illustrated in Figure 3 illustrates hot spot by circle
Three states when being changed into of different shapes oval.
For the clearer change for representing the hot spot during LED light source module 12 overturns, Fig. 4（1）It is to be given
Single-spot schematic diagram when three LED light source modules individually irradiate.Fig. 4（2）It is two groups of LED light source modules 12 in Fig. 3
Positioned at position a when light fixture irradiation initial circular hot spot schematic diagram.Fig. 4（2）Shown initial circular hot spot is Fig. 4（1）In three
The superposition of individual single-spot.That is initial circular hot spot weight of the three initial circular single-spots of three LED light source modules with light fixture
It is combined.The original state is realized by overturning two groups of LED light source modules 12 in a suitable angle, is such as schemed
A positions shown in 3.
Fig. 5（1）It is Fig. 4（1）The single-spot surface of intensity distribution, it is womp in order to avoid occurring in light spot shape conversion process
Or prominent dark phenomenon, the rule change that its distribution is successively decreased from center to periphery according to luminous intensity.Fig. 5（2）It is Fig. 4（2）Just
The beginning circular light spot surface of intensity distribution, is Fig. 4（1）In three single-spots superposition, therefore, and according to luminous intensity from center to
The rule change that periphery is successively decreased.
Fig. 6 and Fig. 7 are the two kinds of ellipse-shaped lights irradiated when two groups of LED light source modules 12 are located at position b and c respectively in Fig. 3
Speckle schematic diagram.Two groups of LED light source modules 12 are overturn by switching mechanism, two circles for being formed this two groups of LED light source modules 12
Shape hot spot is moved.And three circular light spots its center of circle during change is always positioned on straight line.Two circles
The opposite both sides translation of the circular light spot formed to fixed LED light source module 11 respectively along this straight line by shape hot spot.Upset
Angle it is different, the shape difference of the oval hot spot of formation.
Fig. 8 is the surface of intensity distribution of the oval hot spot of Fig. 7, and in figure, outside curve represents the major axis of ellipse-shaped light speckle
On light distribution, internal curve represents the light distribution in the short axle of ellipse-shaped light speckle.Wherein, the light distribution in short axle
With the surface of intensity distribution of single-spot, the regularity of distribution on major axis is gradually successively decreased from center to periphery for luminous intensity.Horizontal seat in figure
MarkRepresent the angle of the radius relative to light fixture of initial circular hot spot.In the present embodiment, light fixture and the distance of face to be illuminated are 20 meters
Far.
Fig. 9 is determining the method schematic diagram of hot spot amount of movement according to specific requirement.Due to LED lamp when in use, its
Size is very little for its distance with face to be illuminated, is almost negligible, and therefore, it can LED lamp
It is approximate as point source.If the major axis of required oval hot spot relative to the angle of light fixture P is, light fixture P with shone
The distance in face is, the center of circle O of initial circular hot spot, radius is, then, two circular light spots are respectively along its center of circle place
Opposite two side shifting from straight line to fixed circular light spot when amount of movement。
Above-mentioned specific embodiment is only intended to the method for designing for illustrating the present invention, can not be used for limiting the guarantor of the present invention
Shield scope.For deformation and conversion under the thought guidance of technical solution of the present invention, should all be attributed to the scope of the present invention
Within.
Claims (6)
1. circular light spot is changed into the LED illumination lamp of oval hot spot, it is characterised in that be made up of three groups of LED light source modules, per group
The irradiation hot spot of the LED light source module is that size is identical, the circle that light intensity is successively decreased from center to periphery, per group of LED
Light source module is made up of plural LED light source module, and one of which LED light source module is maintained static, remaining two groups of LED
Light source module can be overturn in certain angle, so that the center of circle position of circular light spot formed by three groups of LED light source modules
On straight line, and two of which circular light spot can along described straight line to opposite two side shifting, realize circular light spot with
Conversion between oval hot spot, three groups of LED light source modules surround a circular lamp panel, wherein two groups can be done flip-flop movement
LED light source module be located at fixed LED light source module two side positions, and the LED light source module for each being included that
This adjacent installation.
2. circular light spot according to claim 1 is changed into the LED illumination lamp of oval hot spot, it is characterised in that per group of institute
The quantity for stating the LED light source module included by LED light source module is identical with composition.
3. circular light spot according to claim 1 is changed into the LED illumination lamp of oval hot spot, it is characterised in that can do
The upset of the LED light source module of flip-flop movement realizes that by a switching mechanism switching mechanism includes：Screw mandrel, silk
Silk braid outside bar, the screw mandrel lower end arrange one for driving an end motion of the LED light source module that can do flip-flop movement
Motion, the motion can move up and down with screw mandrel, so as to drive the LED light source module that can do flip-flop movement
One end move up and down；One is arranged in the periphery of the silk braid lower end, the motion is used to connect the rotation of LED light source module
The connecting seat of pivot, can do flip-flop movement LED light source module one end with screw mandrel screw move up and down while,
Can spin upside down around the rotating hinge.
4. circular light spot according to claim 1 is changed into the LED illumination lamp of oval hot spot, it is characterised in that also include
For controlling the current controller of per group of LED light source module input current.
5. circular light spot is changed into the optical design method of the LED illumination lamp of oval hot spot, it is characterised in that will using such as right
Arbitrary described LED illumination lamp in 1 to 4 is sought, the movement of the circular light spot formed by three groups of LED light source modules is come real
Existing circular light spot is changed into the effect of oval hot spot, and design procedure is as follows：
First, by the flip angle of adjustment two groups of LED light source modules, make what three groups of LED light source modules were formed
Three initial circular single-spots overlap on the initial circular hot spot of predetermined illuminating lamp；
Then, two groups of LED light source modules are overturn, makes three circular light spots its center of circle in moving process be always positioned at one
On straight line, and two circular light spots that two groups of LED light source modules are formed are respectively along the straight line to fixed that group
Opposite two side shifting of the fixed circular light spot formed by LED light source module；
In above-mentioned hot spot moving process, described two circles are determined according to the size of the oval hot spot of required conversion
Hot spot relative to amount of movement from the fixed circular light spot to opposite two side shifting.
6. circular light spot according to claim 5 is changed into the optical design method of the LED illumination lamp of oval hot spot, and which is special
Levy and be, in the major axis of the oval hot spot for requiring to be transformed into relative to the angle of light fixture be, the distance of light fixture and face to be illuminated
For, the radius of initial circular hot spot isWhen, described two circular light spots are respectively along the straight line to the fixed circular light spot
Opposite two side shifting when amount of movement。
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| CN201210362759.5A CN102840490B (en) | 2012-09-25 | 2012-09-25 | Light emitting diode (LED) illuminating lamp with circular light spot changed to be ellipse light spot and optical designing method |
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| CN201210362759.5A CN102840490B (en) | 2012-09-25 | 2012-09-25 | Light emitting diode (LED) illuminating lamp with circular light spot changed to be ellipse light spot and optical designing method |
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| CN102840490B true CN102840490B (en) | 2017-04-19 |
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| CN104819403A (en) * | 2014-10-22 | 2015-08-05 | 深圳市科曼医疗设备有限公司 | Lighting assembly of operating lamp, operating lamp and light spot adjusting method for operating lamp |
| CN104344264B (en) * | 2014-11-25 | 2016-06-29 | 嘉兴并升照明电器有限公司 | A kind of light is to adjustable LED lamp |
| CN110529760A (en) * | 2019-08-22 | 2019-12-03 | 南通大学 | A kind of production method of shadowless lamp LED annular light source and its radiator structure |
| CN111336414B (en) * | 2020-03-16 | 2022-04-08 | 广东省半导体产业技术研究院 | Design method of uniform light spot and illumination device of uniform light spot |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469841A (en) * | 2007-12-28 | 2009-07-01 | 富士迈半导体精密工业（上海）有限公司 | Illuminating apparatus |
| US7832901B2 (en) * | 2008-03-24 | 2010-11-16 | Cooper Technologies Company | Beam adjustment mechanism for an LED light fixture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006060905A1 (en) * | 2004-12-07 | 2006-06-15 | Elumen Lighting Networks Inc. | Assembly of light emitting diodes for lighting applications |
| CN101561108B (en) * | 2008-04-14 | 2013-05-01 | 浙江大学 | LED lamp with controllable illumination direction and patterns |
| CN201265822Y (en) * | 2008-09-28 | 2009-07-01 | 广州市雅江光电设备有限公司 | Substrate working angle adjustable LED lamp |
| CN101929621B (en) * | 2009-06-18 | 2012-11-21 | 鸿富锦精密工业（深圳）有限公司 | LED light source structure |
| CN201672404U (en) * | 2010-05-10 | 2010-12-15 | 鹤山丽得电子实业有限公司 | Embedded lamp with adjustable angle |
| CN202195436U (en) * | 2011-08-16 | 2012-04-18 | 宁波科拓进出口有限公司 | LED (light-emitting diode) indoor lamp |
-
2012
- 2012-09-25 CN CN201210362759.5A patent/CN102840490B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469841A (en) * | 2007-12-28 | 2009-07-01 | 富士迈半导体精密工业（上海）有限公司 | Illuminating apparatus |
| US7832901B2 (en) * | 2008-03-24 | 2010-11-16 | Cooper Technologies Company | Beam adjustment mechanism for an LED light fixture |
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Effective date of registration: 20190621 Address after: 201100 Shanghai city Minhang District Shuying Road No. 1280 Co-patentee after: Shanghai Sansi Technology Co., Ltd. Patentee after: Shanghai Sansi Tecnology Co., Ltd., Co-patentee after: Jiashan Sansi Photoelectric Technology Co., Ltd. Co-patentee after: PUJIANG SANSI PHOTOELECTRIC TECHNOLOGY CO., LTD. Address before: 201100 Shanghai city Minhang District Shuying Road No. 1280 Co-patentee before: Shanghai Sansi Technology Co., Ltd. Patentee before: Shanghai Sansi Tecnology Co., Ltd., Co-patentee before: Jiashan Sansi Photoelectric Technology Co., Ltd. |