CN103032732B - The light source module that the total space is irradiated - Google Patents
The light source module that the total space is irradiated Download PDFInfo
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- CN103032732B CN103032732B CN201210451309.3A CN201210451309A CN103032732B CN 103032732 B CN103032732 B CN 103032732B CN 201210451309 A CN201210451309 A CN 201210451309A CN 103032732 B CN103032732 B CN 103032732B
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Abstract
The invention discloses the light source module that a kind of total space is irradiated, it is characterized in that comprising LED light source, annular spread is in the end face of same plane form light source board, and its light-emitting axis in the same way and stand on this end face; This light source board has the gap of light-permeable; Internal reflection body, is positioned at this end face, is reflexed to by the light portion of described LED light source outgoing and penetrate described gap; And external reflectance body, be positioned at the homonymy of this internal reflection body relative to light source board, extend from the edge of this internal reflection body, by the light portion sideswipe of described LED light source outgoing to the space of this light source board outside; Wherein, this LED light source has and crosses from this external reflectance is external the direct projection light penetrated.This makes the light of unidirectional its outgoing of LED light source at three directional spreding, can mutually adjust more equably, thus can very close to conventional light source at whole 4 π Light distribation spatially.The light source board at LED light source place adopts the form of surface plate, has taken into account the cheap and reliable of structural member cost.
Description
Technical field
The present invention relates to a kind of lighting device, specifically a kind of that utilize LED light source, that there is total space irradiation feature light source module.
Background technology
In illumination, the photoelectric properties of LED light source highlight advantage relative to conventional light source, no matter be photoelectric transformation efficiency, visible light distributes, the aspects such as life-span, all meet or exceed conventional light source such as incandescent lamp, gas discharge fluorescent lamp, in addition the performance of its uniqueness is also had, such as illuminator is little, spectral region controllability is good, voltage is low, heat is little, utilize these performances, LED light source can be readily embodied in small size, on the ligthing paraphernalia of specular removal, such as family expenses, the bulb lamp that commercial field is common, similar with profile, the form that electrical structure is identical, conventional illumination sources is carried out " substituting ", when not doing other facilities and changing, directly replace conventional lamp.This form has obtained general approval, also obtains suitable effect.
From the feature of LED itself, relative to conventional light source, even if there is good compatibility and advantage in electric, usefulness, still there is its limitation.One of them obvious problem is exactly the restriction of LED lighting angle.Because the light-emitting zone of single led light source is 2 π spaces, and most of light intensity concentrates on less conical region, so, if desired obtain similar incandescent lamp, total space illuminating effect that compact fluorescent lamp has, then must process multiple LED light source, special distribution on such as geometric position, undertaken adjusting by secondary optics device or the two combination processes simultaneously, make the illumination effect of single led light fixture, can compare and be evenly distributed in 4 π spaces.
Given this, the optical design of LED lamp develops rapidly, for adapting to the illumination zone in this 4 π space, many schemes are all suggested, and reasonably adjust the light of LED light source transmitting, combine, and make it achieve the goal, obtain certain effect: but some problems can be had at large, such as:
If more adopt the scheme of adjustment LED geometric position, particularly special process is carried out to the space arrangement of LED light source, the LED light source of diverse location is such as made to irradiate different directions, the light-emitting axis of direct each LED light source of adjustment, then can increase complexity and the cost of structural member significantly, also can bring the problem of other heat radiations, cabling, maintainability simultaneously; According to the scheme of LED light source simple arrangement, then can solve the problem of heat radiation, cabling, structural member cost, but but must need to use more secondary optics device, turn increase the cost of optics thus, but also the hidden danger of two aspects can be brought: significantly reduce light efficiency rate, add complexity and the cost of optics.
Summary of the invention
For above LED light source lamp, in the design of total space light structures, structural member is complicated, cost is high and the inefficient problem of optics, and the present invention proposes the light source module that a kind of total space is irradiated, and its technical scheme is as follows:
The light source module that the total space is irradiated, comprising:
LED light source, annular spread is in the end face of same plane form light source board, and its light-emitting axis is in the same way and stand on this end face; This light source board has the gap of light-permeable;
Internal reflection body, is positioned at this end face, is reflexed to by the light portion of described LED light source outgoing and penetrate described gap; And
External reflectance body, is positioned at the homonymy of this internal reflection body relative to light source board, extends from the edge of this internal reflection body, by the light portion sideswipe of described LED light source outgoing to the space of this light source board outside;
Wherein, this LED light source has and crosses from this external reflectance is external the direct projection light penetrated.
As the preferred person of the technical program, improvement can be had in following:
In preferred embodiment, this internal reflection body comprises internal reflection curved surface, and this internal reflection curved surface begins to extend upward from described end face.
In preferred embodiment, this internal reflection curved surface is single-revolution face form, is positioned at the inner ring of this LED light source annular spread.
In preferred embodiment, this external reflectance body comprises an external reflectance curved surface, and this external reflectance curved surface is the form in single-revolution face.
In preferred embodiment, this internal reflection body and the external reflectance body person of being formed in one, and Rotational Symmetry, its symmetry axis is perpendicular to this end face.
In preferred embodiment, have the lens of an annular between this LED light source and this external reflectance body, these lens reflect the direct projection light described in part, make it relative to original pathway side to injection.
In preferred embodiment, it is characterized in that: this LED light source is with the annular spread of positive Circles, described internal reflection body and external reflectance body are positioned at the axial two ends of a round platform body, and wherein this internal reflection body is positioned at the small end of this round platform body, and external reflectance body is positioned at the large end of this round platform body; The end face of this light source board is fixed on the top at the small end place of this round platform body.
In preferred embodiment, the bus of the side of this round platform body is a curve can led continuously.
In preferred embodiment, the central authorities of this light source board, round platform body have the through hole run through.
In preferred embodiment, separately have a cell-shell of revolving body, this cell-shell covers all light coming from this LED light source completely.
The beneficial effect that the technical program is brought is:
1. the program constitutes the form that the total space is irradiated, and makes the light of unidirectional its outgoing of LED light source at three directional spreding, can mutually adjust more equably, thus can very close to conventional light source such as incandescent lamp at whole 4 π Light distribation spatially.Meanwhile, the light source board at LED light source place adopts the form of surface plate, has the simplest structure, therefore, has taken into account the cheap and reliable of structural member cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Fig. 1 is the explosive view of the embodiment of the present invention one;
Fig. 2 is the side view of embodiment illustrated in fig. 1;
Fig. 3 is index path embodiment illustrated in fig. 1;
Fig. 4 is the embodiment of the present invention two side view;
Fig. 5 is the embodiment of the present invention three side view;
Fig. 6 is the embodiment of the present invention four side view;
Fig. 7 is explosive view embodiment illustrated in fig. 6;
Fig. 8 is index path embodiment illustrated in fig. 6;
Fig. 9 is shaft section Light distribation figure embodiment illustrated in fig. 6.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the schematic diagram of the embodiment of the present invention.
The light source module that this total space is irradiated, comprises the light source board 40 of plane, be welded and fixed plurality of LEDs light source 43 at the end face of light source board 40, this plurality of LEDs light source 43 annular spread on light source board 40, and its light-emitting axis all stands on the end face of light source board 40.In light source board 40 gap 41, the gap 41 of light-permeable between this LED light source, as Fig. 1, this gap is positioned at the annular inner race that LED light source 43 is formed.
On light source board 40, have internal reflection body 20 and external reflectance body 30, wherein, as shown in Figure 3, nickel reflector 20 adopts interior reflective surface 21 reflected by the part emergent ray of LED light source 43, become internal reflection light 51, this internal reflection light 51 penetrates gap 41; Be oriented the back side injection of light source board 40.External reflectance body 30 is positioned at the homonymy of this internal reflection body 20 relative to light source board 40, and extend from the edge of internal reflection body 20, by the light portion sideswipe of LED light source 43 outgoing to the space of this light source board 40 outside, become external reflectance light 52, in addition, LED light source 43 also has direct projection light 53, and the feature of this direct projection light is the peripheral outgoing from external reflectance body 30, can not stop by external reflectance body 30 or reflect.
Visible, the program constitutes the form that the similar conventional light source total space is irradiated, because it is that internal reflection light 51, external reflectance light 52 and direct projection light 53 are at three directional spreding respectively that this structure makes the light of its outgoing of unidirectional LED light source 43 be decomposed at least three classes, can mutually adjust more equably, thus can very close to conventional light source such as incandescent lamp at whole 4 π Light distribation spatially.Meanwhile, the light source board 40 at LED light source 43 place adopts the form of surface plate, has the simplest structure, therefore, has taken into account the cheap and reliable of structural member cost.
In the present embodiment, the internal reflection curved surface 21 on internal reflection body 20 is the form in single-revolution face, is positioned at the inner ring of this LED light source 43 annular spread, and this internal reflection curved surface 21 begins to extend upward from the end face of light source board 40; The internal reflection body 20 of this form is easily shaping, takies volume little; And external reflectance body 30 is also similar with internal reflection body 20, comprise an external reflectance curved surface 31, this external reflectance curved surface 31 is also the form in single-revolution face.Consider fixing problem, as Fig. 2, internal reflection body 20 and external reflectance body 30 are positioned at the axial two ends of a round platform body, and wherein internal reflection body 20 is positioned at the small end of this round platform body, and external reflectance body 30 is positioned at the large end of this round platform body; The end face of this light source board 40 is fixed on the top at the small end place of this round platform body, so, light source board 40 is large with the relative FX of internal reflection body 20, and mechanical strength is high, particularly can ensure that it is firm when the diameter of the large end of this truncated cone-shaped bodily form is greater than light source board 40.
Consider shaping problem, internal reflection body 20 and external reflectance body 30 are formed in one and Rotational Symmetry, its symmetry axis perpendicular to the end face of this light source board 40, this form make internal reflection body 20 and external reflectance body 30 can time processing complete; Particularly the bus of the side of the round platform body at the two place be one can lead continuously curve time, processing technology is the simplest.Interior reflective surface 21 and external reflectance face 31 can be processed into the form of minute surface, also can be processed into frosted or various micro-structural, increase its diffuse reflectance, make Light distribation more even.
Embodiment two:
As shown in Figure 4, the schematic diagram of the embodiment of the present invention two, visible the present embodiment and embodiment one similar, plate light source board 40, the some LED light source 43 of positive round annular spread, no matter internal reflection body 20 or external reflectance body 30, all based on same revolving body form, unlike, the side axial of internal reflection body 20 and external reflectance body 30 has crack 33, meaning in circumferential direction, internal reflection body 20 and external reflectance body 30 discontinuous, because the two all adopts the sheet curved body of circumference distribution to form around its central shaft rotary splicing, the internal reflection body 20 of this form and external reflectance body 30 also can be simultaneously shaping, but be divided into the part of several circumference distributions, can be shaping more rapidly by the mode of punching press, further reduction process time and cost.
Embodiment three:
As shown in Figure 4, the side view of the embodiment of the present invention 4, similar with the first two embodiment, plate light source board 40 and the LED light source 43 on it, unlike, independent process has been carried out on the surface of internal reflection body 20 and external reflectance body 30, to such an extent as to the external reflectance curved surface 31 on external reflectance body 30 surface is made up of the unit 34 of multiple circumference, when considering that the quantity of LED light source 43 is few, its layout pitch is more sparse, so may need to process individually on each LED light source 43 outside reflecting surface, therefore take shape in external reflectance body by the form of unit 34.
Embodiment four:
As shown in Figures 6 to 9, the schematic diagram of the embodiment of the present invention four.
As can be seen from Figures 6 and 7, have the lens 60 of an annular in the present embodiment between LED light source 43 and external reflectance body 30, these lens 60 are compensation arrangements, more accurately can adjust the light of LED light source injection.
As shown in Figure 8, the light path schematic diagram of the present embodiment, similarly, internal reflection body 20 makes the light output from LED light source 43 become internal reflection light 51, external reflectance body 30 obtains external reflectance light 52, do not belong to direct projection light 53 via inside and outside reflector person, but due to the existence of lens 60, the part of direct projection light 53 is processed, it is reflected, make it change fine setting light 54 relative to original pathway side into injection, become the solid angle component of a sweetly disposition, to compensate the defect part in whole illumination range.Because the interference suffered by direct projection light 53 between LED light source 43 and external reflectance body 30 is minimum, and luminous flux is large, so select the light output of this part comparatively suitable and simple as trim component, the lens 60 directly installing design additional can obtain.As shown in Figure 9, under the compensation of lens 60, whole embodiment four can have very excellent spatial light intensity distribution curve, very close to the Light distribation of conventional incandescent and fluorescent lamp, has excellent effect.
Can find out from embodiment one to four, through hole 42(Fig. 1 that the form of this inside and outside reflector can make the central authorities of light source board 40 and round platform body have and run through is shown), this through hole has two obvious technique effects: the consumption saving material on the one hand, weight reduction, on the other hand can as the accommodation space of miscellaneous part or the space of radiating convection gas, the latter is most important in the illuminator scheme of small size.
For the technical program, can arrange a cell-shell of the revolution bodily form, this cell-shell covers all light coming from this LED light source completely, makes the light output of whole module more even in solid space.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (10)
1. the light source module of total space irradiation, is characterized in that: comprising:
LED light source, annular spread is in the end face of same plane form light source board, and its light-emitting axis is in the same way and stand on this end face; This light source board has the gap of light-permeable, this gap is positioned at the annular inner race that LED light source is formed;
Internal reflection body, be positioned at this end face, reflexed to by the light portion of described LED light source outgoing and penetrate described gap, the back side towards light source board is penetrated; And
External reflectance body, is positioned at the homonymy of this internal reflection body relative to light source board, extends from the edge of this internal reflection body, by the light portion sideswipe of described LED light source outgoing to the space of this light source board outside;
Wherein, this LED light source has and crosses from this external reflectance is external the direct projection light penetrated.
2. the light source module of total space irradiation according to claim 1, is characterized in that: this internal reflection body comprises internal reflection curved surface, and this internal reflection curved surface begins to extend upward from described end face.
3. the light source module of total space irradiation according to claim 2, is characterized in that: this internal reflection curved surface is single-revolution face form, is positioned at the inner ring of this LED light source annular spread.
4. the light source module of total space irradiation according to claim 1, it is characterized in that: this external reflectance body comprises an external reflectance curved surface, this external reflectance curved surface is the form in single-revolution face.
5. the light source module of total space irradiation according to claim 1, is characterized in that: this internal reflection body and the external reflectance body person of being formed in one, and Rotational Symmetry, its symmetry axis is perpendicular to this end face.
6. the light source module of total space irradiation according to claim 1, it is characterized in that: the lens between this LED light source and this external reflectance body with an annular, these lens reflect the direct projection light described in part, make it relative to original pathway side to injection.
7. the light source module that the total space is irradiated according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that: this LED light source is with the annular spread of positive Circles, described internal reflection body and external reflectance body are positioned at the axial two ends of a round platform body, wherein this internal reflection body is positioned at the small end of this round platform body, and external reflectance body is positioned at the large end of this round platform body; The end face of this light source board is fixed on the top at the small end place of this round platform body.
8. the light source module of total space irradiation according to claim 7, is characterized in that: the bus of the side of this round platform body is a curve can led continuously.
9. the light source module of total space irradiation according to claim 8, is characterized in that: the central authorities of this light source board, round platform body have the through hole run through.
10. the light source module of total space irradiation according to claim 9, it is characterized in that: the cell-shell separately having revolving body, this cell-shell covers all light coming from this LED light source completely.
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| CN201210451309.3A CN103032732B (en) | 2012-11-12 | 2012-11-12 | The light source module that the total space is irradiated |
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| CN201210451309.3A CN103032732B (en) | 2012-11-12 | 2012-11-12 | The light source module that the total space is irradiated |
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| CN103032732B true CN103032732B (en) | 2016-01-20 |
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| CN107477386A (en) * | 2016-06-06 | 2017-12-15 | 吕清淼 | Heat radiating type lamp socket |
| WO2022057880A1 (en) * | 2020-09-21 | 2022-03-24 | 苏州欧普照明有限公司 | Lighting fixture and light source system thereof |
| CN114353013A (en) * | 2020-10-14 | 2022-04-15 | 台州市远大工业设计有限公司 | LED light distribution device and LED combined light source for replacing halogen lamp filament |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839410A (en) * | 2010-04-15 | 2010-09-22 | 北京朗波尔光电股份有限公司 | Space omnidirectional light-emitting diode (LED) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101839410A (en) * | 2010-04-15 | 2010-09-22 | 北京朗波尔光电股份有限公司 | Space omnidirectional light-emitting diode (LED) |
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