CN103807627B - Light emitting module and illumination device with light emitting module - Google Patents
Light emitting module and illumination device with light emitting module Download PDFInfo
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- CN103807627B CN103807627B CN201210454363.3A CN201210454363A CN103807627B CN 103807627 B CN103807627 B CN 103807627B CN 201210454363 A CN201210454363 A CN 201210454363A CN 103807627 B CN103807627 B CN 103807627B
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Abstract
The invention relates to a light emitting module (10), which comprises a circuit board (1), at least three light sources (2) and at least three optical devices (3), wherein the light source (2) are arranged at one side of the circuit board (1), and each optical device (3) is respectively matched with each light source (2). The light emitting module is characterized in that the three optical devices (3) are used for respectively generating sub-spots, and at least parts of sub-spots are overlapped to form uniform spots. The invention also relates to an illumination device with the light emitting module.
Description
Technical field
The present invention relates to a kind of light emitting module and the illuminator including the light emitting module.
Background technology
LED light module has the advantages that efficient energy-saving, therefore occupies an leading position in current lighting field.With photograph
The development of bright technology, the modification lamp with LED as light source has progressively substituted fluorescent lamp and has been widely used in various occasions.For example
In LED light module as backlight, each LED light source equipped with independent lens, for realizing predetermined light distribution figure
Case, this lens are, for example, the Vespertilio aerofoil profile lens being widely used（Batwing lens）.This lens are in the prior art
Substantially axisymmetrically design, that is to say, that lens are used to receive the inner surface of incident illumination and the outer surface as exit facet all has
It is related to the symmetrical profile of central axis.
When only having the lens that a this complete axial symmetry is designed on light emitting module, single lens can be passed through
Bat-wing hot spot symmetrically is realized, therefore this lens limit to a certain extent the brightness of light emitting module in other words
Light output amount.When arrange on circuit boards to improve the brightness of light emitting module it is multiple be furnished with this lens light source when, very
It is difficult to obtain uniform hot spot.Therefore need to further improve existing light emitting module, particularly LED light module,
To meet the requirement of user.
The content of the invention
To solve above-mentioned technical problem, the present invention proposes a kind of new light emitting module.The light emitting module has structure
Simply, the big advantage of energy-efficient, range of exposures.
A kind of light emitting module is proposed according to the present invention, including the circuit board with marginal area and middle section, is arranged on
At least three light sources of the circuit board side and at least three optics of each light source are associated with respectively, its feature exists
In it is that, for producing sub-light speckle, the sub-light speckle is least partially overlapped uniform to constitute that the plurality of optics is separately designed
Hot spot.
In the design of the present invention, each light source produces the hot spot of itself through the optics attached troops to a unit, and these hot spots are made
Sub-light speckle common combination for light emitting module forms the hot spot of closing, wherein preferably having one between two neighboring sub-light speckle
Individual overlapping region.Thus by means of three, four or multiple optics can be formed for example triangle, tetragon, circle or
The uniform hot spot of other shapes.
In one of the invention preferred design, the light source is arranged as annular array, and the optics sets
Count for making the light beam through the perimeter of each annular array described in the optics directive annular more than described in directive
The light beam of the middle section of array.In the case, through each optics towards the annular array perimeter
Luminous flux is more than the luminous flux towards its middle section.Because the arrangement of multiple optics is circularized, and each optics
Asymmetrical sub-light speckle can be realized, therefore these sub-light speckles can be combined into a complete and uniform hot spot naturally.
In one of the invention preferred design, the optics is lens, the lens have first axle,
Perpendicular to second axle and the 3rd axle of the first axle, first and second axis limit goes out the basal plane of the lens, and institute
The 3rd axle is stated perpendicular to the basal plane.Preferably, the lens include the plane of incidence, the plane of incidence the lens, by institute
The first curve is formed on the first vertical for stating first axle and the 3rd axis limit, first curve is with regard to the 3rd axle
It is asymmetric.In traditional light emitting module, the lens installed on circuit board are often symmetric design, such as sphere lenses.This
Plant lens and generally there is a unique optical axis, it is most of on the direction of circuit board through the light of this lens outgoing
Extend, this can only realize a kind of uniform light spots centered on optical axis.Light emitting module of the invention has asymmetric design
Lens, by means of this asymmetrical lens can by from the emergent light of light source towards desired irradiation area.These
Emergent light extends respectively along such as two optical axises, targetedly to form the sub-light speckle for covering specific region.
In one of the invention preferred design, the optics includes first towards the middle section
The sub- plane of incidence and the second sub- plane of incidence towards the perimeter, the first sub- plane of incidence and the second sub- plane of incidence are put down
Connect to form the asymmetrical arc plane of incidence slidingly, the plane of incidence is with regard to by second axle and the 3rd axis limit
Two verticals are asymmetric.Incident illumination from light source is divided into two groups towards different directions by the first and second sub- planes of incidence
Emergent light, through the perimeter of the light directive annular array of the second sub- plane of incidence, it is possible thereby to increase the irradiation of light emitting module
Area.Preferably, the described first sub- plane of incidence and the second sub- plane of incidence are symmetrical respectively about first vertical.
In one of the invention preferred design, the first sub- plane of incidence forms second on first vertical
Curve, the second sub- plane of incidence forms the 3rd curve on first vertical, second curve and described 3rd bent
Line smoothly connects to form first curve, has the first angle between second curve and the first axle, and described the
There is the second angle, first angle is more than second angle between three curves and the first axle.It may thereby be ensured that
Most of light of light source is in the perimeter of the second sub- plane of incidence directive annular array, a small amount of light directive annular array
Centre region.
In one of the invention preferred design, second curve and the 3rd curve are that batten is bent
Line.The shape of the first and second sub- planes of incidence can also be adjusted according to application requirement.
In one of the invention preferred design, the plane of incidence of the optics first, second son are incident
Face and the circuit board limit the accommodating chamber for accommodating the light source.Can be as high as possible by means of the optics of such design
Effect ground obtains the incident illumination from light source.
In one of the invention preferred design, the optics includes exit facet, and the exit facet is in institute
State the 4th curve of formation, threeth axial symmetry of the 4th curve with regard to second lens on the first vertical.It is preferred that
Ground, the exit facet is sphere.
In of the invention another is preferably designed, at least three optics is uniform in circumferential direction
Arrangement.The optics for circularizing of uniformly arranging in circumference combines can the sub-light speckle of respective generation and to be superimposed as brightness higher
Annular, preferably circular hot spot, it is possible thereby under the premise of guaranteeing that light distribution is uniform improve light emitting module brightness.
The invention further relates to a kind of illuminator, it is characterised in that including above-mentioned light emitting module.Light in light emitting module
When source is LED light source, this illuminator can serve as the illuminator with LED as backlight, and with uniform illumination
Effect.
It should be understood that the general description of the above and the following detailed description are all enumerated and illustrative, it is therefore an objective to
In order to provide further instruction to claimed invention.
Description of the drawings
Accompanying drawing constitutes the part of this specification, is used to help further understand the present invention.These accompanying drawings illustrate this
Bright embodiment, and be used for illustrating the principle of the present invention together with description.Identical part identical label in the accompanying drawings
Represent.Illustrate in figure：
Fig. 1 shows the sectional view of the first embodiment of light emitting module of the invention 10；
Fig. 2 shows the perspective bottom view of the optics 3 in Fig. 1；
Fig. 3 shows the first profile of the optics 3 in Fig. 1；
Fig. 4 shows the second profile of the optics 3 in Fig. 1；
Fig. 5 shows the light distribution figure of the first embodiment of light emitting module of the invention 10.
Specific embodiment
In being discussed in more detail below, with reference to the accompanying drawing for the part for forming this specification, wherein, illustrate in an exemplary manner
The specific embodiment of the present invention can be implemented.With regard to figure, such as " push up ", " bottom ", " interior ", " outward " directional terms refer to institute
The direction of the accompanying drawing of description uses.Because the component of the embodiment of the present invention can be placed on many different directions, so direction
Term is merely to illustrate, without the meaning of any restriction.It should be understood that other embodiments can be used, and not
Structure or logical changes can be carried out on the premise of the scope of the present invention.So, it is described below in detail and is understood not to
The restricted meaning, and the present invention is defined by the appended claims.
If it should be understood that especially indicated without other, the feature of different exemplary embodiment described herein
Can be bonded to each other.
Fig. 1 shows the sectional view of the first embodiment of light emitting module of the invention 10, and the light emitting module 10 includes
Circuit board 1 and at least three arranges light source 2 on the circuit card 1, and wherein each light source 2 is respectively provided with the optics for being designed as lens
Device 3, therefore lens correspondingly have in the present embodiment label " 3 ".
For light emitting module 10, in order on the one hand guarantee to reach predetermined brightness, on the other hand can also realize uniform
Hot spot, therefore obtained using the method being combined in circumferential direction to multiple sub-light speckles one it is complete and uniform
Hot spot, wherein two neighboring sub-light speckle is overlapped at least in part.In the present embodiment, the number of light source 2 and matched lens 3
Amount is respectively 6, and these lens 3 of light source 2/ are evenly arranged circularize array in the circumferential（Two for being oppositely arranged only are shown in figure
The lens 3 of individual light source 2/）.
Lens 3 have an Internal periphery of asymmetric design, and the light that two light sources 2 being arranged in pairs send is through the lens attached troops to a unit
3 mostly directive should " lens to " both sides, the perimeter R2 of i.e. unshowned annular array." perimeter " here is referred to
Circumferentially around the region outside annular array.Correspondingly, the region that annular array is limited inside it be properly termed as " in
Centre region " R1.In the case, the light beam through each lens 3 directive perimeter R2 is more than the light of directive middle section R1
Beam.
Additionally, in order to obtain the incident illumination from light source 2 as efficiently as possible, can be by the plane of incidence of lens 3 and circuit
Plate 1 limits the accommodating chamber for accommodating light source 2.
Can identify exactly with reference to the axonometric chart and the first and second profiles of the lens 3 illustrated in Fig. 2-4
The asymmetric profile of the plane of incidence of mirror 3, wherein Fig. 3 and Fig. 4 is perpendicular to one another two section.
By as can be seen that the plane of incidence projection in the horizontal plane of lens 3 has water-drop-shaped profile, also just saying in Fig. 2, enter
The SPL that face forms smooth closure on the bottom surface of lens 3 is penetrated, the closed curve is water-drop-shaped.As shown in Figure 3 and Figure 4,
With first axle X, perpendicular to the second axle Y and the 3rd axle Z of first axle X, the first and second axle X, Y limits lens 3 to lens 3
Basal plane X-Y, and the 3rd axle Z is perpendicular to basal plane X-Y.
The first curve is formed on the first vertical X-Z that the asymmetrical plane of incidence of lens 3 figure 3 illustrates, first is bent
Line is asymmetric with regard to the 3rd axle Z.In the present invention, the plane of incidence includes the first sub- plane of incidence for illustrating in figs. 3 and 4 and only exists
The second sub- plane of incidence illustrated in Fig. 3.First sub- incident surface A 1 forms the second curve on the first vertical X-Z, and the second son enters
Penetrate face A2 and the 3rd curve is formed on the first vertical X-Z, second and the 3rd curve smoothing that can be limited by SPL
Ground connection forms the first curve.
In order that from the predetermined region of the light beam directive of light source 2, i.e. zone line, lens 3 are especially designed with court
To middle section R1（Referring to Fig. 1）The first sub- incident surface A 1 and towards perimeter R2（Referring to Fig. 1）The second sub- plane of incidence
A2.The first angle α 1 is formed between second curve and first axle X, the second angle α 2 is formed between the 3rd curve and first axle X, the
One angle α 1 is more than the second angle α 2.It is possible thereby to obtain the first relatively small sub- incident surface A 1 of area and area is relatively large
The second sub- incident surface A 2.
Additionally, lens 3 also include exit facet A3, the first vertical X-Z that the exit facet of sphere figure 3 illustrates is designed as
The curve of profile identical the 4th and the 5th curve are formed with the first vertical Z-Y illustrated in Fig. 4, that is to say, that either
The 5th curve that the 4th curve that exit facet A3 is formed on the first vertical X-Z is still formed on the first vertical Z-Y, all
It is symmetrical with regard to the 3rd axle Z.
Fig. 5 shows the light distribution figure of the first embodiment of light emitting module of the invention 10.Due to implementing first
In example, light emitting module equipped with the complete hot spot illustrated in six light sources, therefore Fig. 5 is combined by six sub- hot spots.
This six sub- hot spots are uniformly distributed in the circumferential, and overlapped in respective neighboring region, it is possible thereby to constitute an envelope
The ring-shaped light spot for closing.This can be according to the brightness of light source or the first angle α 1（Referring to Fig. 3）The hot spot for being adjusted to circle is bright
Degree is higher, and is evenly distributed, while also avoiding forming dark space between two neighboring sub-light speckle.
In unshowned one embodiment, it is also possible to be equipped with other quantity for light emitting module according to practical situations
Light source and corresponding lens, such as three groups light sources and lens, four groups of light sources and lens etc..
The hot spot that can also be realized as needed is sub come the plane of incidence, the i.e. first sub- plane of incidence of adjustment and second for adjusting lens
The profile of the plane of incidence, for example, can change the height of the plane of incidence, it is also possible in the base of lens on the direction of the 3rd axle of lens
Change the width of the plane of incidence in the plane that face, i.e. lens base are located.
Although in addition, a kind of special characteristic for disclosing embodiments of the invention in only with respect to numerous embodiments or
Aspect, but as required by any given or application-specific, these features or aspect can be with the one of other embodiment
Or multiple further features or aspect are combined.
The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications made within the spirit and principles in the present invention, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Reference number
1 circuit board
2 light sources
3 optics/lens
10 light emitting modules
The sub- planes of incidence of A1 first
The sub- planes of incidence of A2 second
A3 exit facets
The angles of α 1 first
The angles of α 2 second
The middle section of R1 annular arrays
The perimeter of R2 annular arrays
The first axle of X optics
Second axle of Y optics
3rd axle of Z optics
The basal plane of X-Y optics
First vertical of X-Z optics
Second vertical of Y-Z optics
Claims (9)
1. a kind of light emitting module (10), including circuit board (1), at least three light sources (2) for being arranged on the circuit board (1) side
At least three optics (3) of each light source (2) are associated with respectively, it is characterised in that at least three optics
(3) separately design is that, for producing sub-light speckle, the sub-light speckle is least partially overlapped to constitute uniform hot spot, and the light source is arranged
Annular array is classified as, the optics (3) is designed for making through each annular array described in optics (3) directive
Perimeter (R2) light beam more than annular array described in directive middle section (R1) light beam, the optics (3)
It is lens, the lens have first axle (X), perpendicular to second axle (Y) and the 3rd axle (Z) of the first axle (X), described
One axle (X) and the second axle (Y) limit the basal plane (X-Y) of the lens, and the 3rd axle (Z) perpendicular to the basal plane
(X-Y), the lens include the plane of incidence, the plane of incidence the lens, by the first axle (X) and the 3rd axle
(Z) the first curve is formed on the first vertical (X-Z) for limiting, first curve is asymmetric with regard to the 3rd axle (Z), institute
Stating optics (3) also includes exit facet (A3), and it is bent that the exit facet (A3) forms the 4th on first vertical (X-Z)
Line, the 4th curve is symmetrical with regard to the 3rd axle (Z).
2. light emitting module (10) according to claim 1, it is characterised in that the optics (3) is included towards described
The first sub- plane of incidence (A1) and the towards the perimeter (R2) second sub- plane of incidence (A2) of middle section (R1), described
The one sub- plane of incidence (A1) and the second sub- plane of incidence (A2) smoothly connect and form the arc plane of incidence, the plane of incidence with regard to by
The second vertical (Y-Z) that second axle (Y) and the 3rd axle (Z) limit is asymmetric.
3. light emitting module (10) according to claim 2, it is characterised in that the first sub- plane of incidence (A1) and described
The two sub- planes of incidence (A2) are symmetrical respectively about first vertical (X-Z).
4. light emitting module (10) according to claim 3, it is characterised in that the first sub- plane of incidence (A1) is described
The second curve is formed on one vertical (X-Z), the second sub- plane of incidence (A2) forms on first vertical (X-Z)
Three curves, second curve and the connection of the 3rd curve smoothing ground form first curve, second curve and institute
State and have between first axle (X) the first angle (α 1), there is the second angle (α between the 3rd curve and the first axle (X)
2), first angle (α 1) is more than second angle (α 2).
5. light emitting module (10) according to claim 4, it is characterised in that second curve and the 3rd curve are
SPL.
6. light emitting module (10) according to claim 2, it is characterised in that the first sub- plane of incidence (A1), described
The two sub- planes of incidence (A2) and the circuit board (1) limit the accommodating chamber for accommodating the light source (2) jointly.
7. light emitting module (10) according to claim 1, it is characterised in that the exit facet (A3) is sphere.
8. light emitting module (10) according to claim 1, it is characterised in that at least three optics (3) is in week
Uniformly arrange on direction.
9. a kind of illuminator, it is characterised in that include the light emitting module (10) according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210454363.3A CN103807627B (en) | 2012-11-13 | 2012-11-13 | Light emitting module and illumination device with light emitting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210454363.3A CN103807627B (en) | 2012-11-13 | 2012-11-13 | Light emitting module and illumination device with light emitting module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807627A CN103807627A (en) | 2014-05-21 |
| CN103807627B true CN103807627B (en) | 2017-05-10 |
Family
ID=50704795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210454363.3A Expired - Fee Related CN103807627B (en) | 2012-11-13 | 2012-11-13 | Light emitting module and illumination device with light emitting module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807627B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626698A (en) * | 2018-07-12 | 2018-10-09 | 厦门佰明光电股份有限公司 | Light extraction reflects cup structure and composite structure and its light |
| CN109541848B (en) * | 2019-01-04 | 2021-07-06 | 惠州市华星光电技术有限公司 | Lens for LED light source |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749592A (en) * | 2008-12-22 | 2010-06-23 | 欧阳杰 | LED lamp lighting method with high effective exposure rate |
| FI20095567A0 (en) * | 2009-05-22 | 2009-05-22 | Ooo Optogan | Manufacture of a light source |
| CN101625103B (en) * | 2009-06-01 | 2012-01-11 | 江西省晶和照明有限公司 | LED lens and array structure thereof |
| CN102022690B (en) * | 2009-09-11 | 2014-03-12 | 玉晶光电股份有限公司 | Optical lens |
| CN202109279U (en) * | 2011-06-23 | 2012-01-11 | 南昌大学 | LED illuminating device capable of improving edge light leakage |
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2012
- 2012-11-13 CN CN201210454363.3A patent/CN103807627B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807627A (en) | 2014-05-21 |
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Granted publication date: 20170510 Termination date: 20191113 |