CN103307493B - A kind of bar shape LED lamp of symmetrical luminous intensity distribution - Google Patents
A kind of bar shape LED lamp of symmetrical luminous intensity distribution Download PDFInfo
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- CN103307493B CN103307493B CN201210070653.8A CN201210070653A CN103307493B CN 103307493 B CN103307493 B CN 103307493B CN 201210070653 A CN201210070653 A CN 201210070653A CN 103307493 B CN103307493 B CN 103307493B
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- transparent parts
- light source
- luminous intensity
- intensity distribution
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Abstract
The present invention relates to a kind of bar shape LED lamp of symmetrical luminous intensity distribution, substrate is provided with in described lamp housing, described substrate is provided with plurality of LEDs light source, described plurality of LEDs light source arranges along the length direction of lamp body, described LED light source is just to described Transparent Parts, described Transparent Parts is symmetrical about midplane, described midplane was LED light source and the plane perpendicular with described substrate, the inner surface of described Transparent Parts and/or outer surface are the free form surface stretched along the length direction of lamp body, and the light that described LED light source sends is symmetrical about described midplane after described Transparent Parts refraction.The structure of bar shape LED lamp of the present invention is simple, utilizes lens piece to carry out symmetrical luminous intensity distribution to LED light source, does not need extra optical element, improve the utilization ratio of light source, reduce light fixture cost.
Description
Technical field
The present invention relates to strip lamp, more particularly, relate to a kind of bar shape LED lamp of symmetrical luminous intensity distribution.
Background technology
The symmetrical luminous intensity distribution of existing strip LED realizes mainly through two kinds of modes, first kind of way increases a light-distribution lens at the light direction of LED light source, first light is reflected into the light distribution of a certain symmetry angle by light-distribution lens, the translucent cover then through strip lamp penetrates; In second, mode is that be arranged on by LED light source in reflector, the light that LED light source sends, through the mirror-reflection of reflector, realizes the symmetrical luminous intensity distribution of light fixture, thus reaches the design of symmetrical luminous intensity distribution by increasing reflector.There is following defect in these two kinds of luminous intensity distribution designs: 1, installs light-distribution lens or reflector in lamp body structure inside, need enough large space to meet and needs are installed, cause lamp body structure bigger than normal, lightweight, the designing requirement such as volume is little, structure is frivolous of light fixture cannot be met; 2, mounted lens or reflector inside lamp body structure, needs the relative position considering optical component and light source, brings and installs inconvenience, and the not easily shortcoming such as fixing; 3, optical component is too much, and can cause light fixture energy loss in secondary light-distribution, efficiency is low, and cost is high.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of the bar shape LED lamp of prior art, provides a kind of bar shape LED lamp of symmetrical luminous intensity distribution, the structure of this bar shape LED lamp is simple, utilize Transparent Parts for LED light source luminous intensity distribution, decrease optical element, reduce light fixture cost.
The technical solution adopted for the present invention to solve the technical problems is: the bar shape LED lamp constructing a kind of symmetrical luminous intensity distribution, comprise elongated lamp body, described lamp body comprises lamp housing, and the Transparent Parts to fasten with described lamp housing, substrate is provided with in described lamp housing, described substrate is provided with plurality of LEDs light source, described plurality of LEDs light source arranges along the length direction of lamp body, described LED light source is just to described Transparent Parts, described Transparent Parts is symmetrical about midplane, described midplane was LED light source and the plane perpendicular with described substrate, the inner surface of described Transparent Parts and/or outer surface are the free form surface stretched along the length direction of lamp body, the light that described LED light source sends is symmetrical about described midplane after described Transparent Parts refraction.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, described free form surface is the curved surface stretched along the length direction of described lamp body by one or more buses combined in hyperbola, parabola, SPL, circular arc, elliptic arc and line segment.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the inner surface of described Transparent Parts has the crest just protruded to described LED light source and to LED light source.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the inner surface of described Transparent Parts and outer surface are the free form surface stretched by SPL.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the inner surface of described Transparent Parts is plane, and the outer surface of described Transparent Parts is outwardly arc surface.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the inner surface of described Transparent Parts has just to the first trough of described LED light source, the both sides of described first trough have primary peak respectively, the outside of described primary peak has the second trough, and the outside of described second trough has secondary peak.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the height of described primary peak is greater than the height of secondary peak, and the degree of depth of described first trough is greater than the degree of depth of described second trough.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the maximum angle of the light of described LED light source after described Transparent Parts refraction is 35 ~ 155 degree.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the both sides of described lamp housing are provided with seal groove, the opening of described seal groove is opened towards outside to direction obliquely, sealing strip is provided with in described seal groove, the dual-side of described Transparent Parts is provided with inwards to the attaching part that diagonal upward direction is protruded, and described attaching part is buckled in described seal groove and is squeezed between the bottom surface of described attaching part and described seal groove by described sealing strip.
In the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, it is convex stupefied that the inner side of described attaching part has retaining.
Implement the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, there is following beneficial effect: the structure of bar shape LED lamp of the present invention is simple, utilizes lens piece to carry out symmetrical luminous intensity distribution to LED light source, does not need extra optical element, improve the utilization ratio of light source, reduce light fixture cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the schematic diagram of bar shape LED lamp;
Fig. 2 is the decomposing schematic representation of the first embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 3 is the schematic cross-section of the first embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 4 is the schematic cross-section of Transparent Parts in the first embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 5 is the light distribution effect schematic diagram of the first embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 6 is the schematic cross-section of the second embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 7 is the schematic cross-section of Transparent Parts in the second embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 8 is the light distribution effect schematic diagram of the second embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Fig. 9 is the schematic cross-section of Transparent Parts in the 3rd embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Figure 10 is the light distribution effect schematic diagram of the 3rd embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Figure 11 is the schematic cross-section of Transparent Parts in the 4th embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention;
Figure 12 is the light distribution effect schematic diagram of the 4th embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, be the schematic diagram of bar shape LED lamp, it is elongated in shape, can be used for the illumination of the occasions such as showcase.
As shown in Figure 2 and Figure 3, for the schematic diagram of the first embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, this bar shape LED lamp, comprises elongated lamp body, and lamp body comprises lamp housing 1, and the Transparent Parts 2 to fasten with lamp housing 1, lamp housing 1 and Transparent Parts is 2-in-1 surrounds a cavity, for being provided with the substrate 3 of LED light source 31, Transparent Parts 3 had both played the effect of lampshade, play again the effect to LED light source 21 luminous intensity distribution, the two ends of lamp body are also provided with end cap.In the present embodiment, substrate 3 is arranged on the end face of lamp housing inside, and substrate 3 is provided with plurality of LEDs light source 31, and plurality of LEDs light source 31 arranges along the length direction of lamp body, and the density of LED light source 31 can be selected as required.LED light source 31 is just to Transparent Parts 2, Transparent Parts 2 is symmetrical about midplane 4, wherein, midplane 4 was plurality of LEDs light source 31 and the plane perpendicular with substrate 3, the inner surface 21 of Transparent Parts 2 and outer surface 22 are the free form surface stretched along the length direction of lamp body, the light that LED light source 31 sends after Transparent Parts 2 reflects about in flat 4 symmetrical, to realize the symmetrical luminous intensity distribution of bar shape LED lamp.Referring to Fig. 4, in the present embodiment, the inner surface 21 of Transparent Parts 2 and outer surface 22 are the free form surface that SPL is formed along the stretching of lamp body length direction, its light distribution effect as shown in Figure 5, the angle injection of the light that LED light source 31 sends roughly in 80 degree after Transparent Parts 2 reflects, the light that LED light source 31 sends is symmetrical after refraction, and in the scope of illumination angle, illumination is more uniform.Owing to directly utilizing Transparent Parts 2 for LED luminous intensity distribution, do not need extra to arrange light-distribution lens or reflector in the inside of housing 1, the structure of lamp body can be made more compact, reduce the volume and weight of light fixture, reduce the cost of light fixture.
Referring to Fig. 2 and Fig. 3, in order to the quick assembling of light fixture can be realized, and make light fixture have good seal performance, the both sides of lamp housing 1 are provided with seal groove 11, the opening of seal groove 11 is opened towards outside to direction obliquely, sealing strip 5 is provided with in seal groove 11, the dual-side of Transparent Parts 2 is provided with inwards to the attaching part 23 that diagonal upward direction is protruded, Transparent Parts 2 is fastened with lamp housing 1 by attaching part 23 and coordinates, attaching part 23 is buckled in and is squeezed between the bottom surface of attaching part 23 and seal groove 11 by sealing strip 5 in seal groove 11, ensure the excellent sealing of Transparent Parts 2 and housing 1 junction, combine owing to adopting the mode fastened, bonding or adopt the structure be screwed relative to employing glue, I& M is all very convenient, and the volume and weight of favourable reduction light fixture.In order to prevent Transparent Parts 2 and housing 1 from throwing off, have retaining convex stupefied 231 in the inner side of the attaching part 23 of Transparent Parts 2, this retaining is convex stupefied 231 mutually spacing with the edge of seal groove 11, stops Transparent Parts 2 and housing 1 to be thrown off.
As shown in Figure 6 and Figure 7, for the schematic diagram of the second embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, in this embodiment, the inner surface 21 of Transparent Parts 2 and outer surface 22 are all the free form surface formed that stretches, and in order to obtain better light distribution effect, there is at the inner surface 21 of Transparent Parts 2 crest 211 just protruded to LED light source 31 and to LED light source 31.Referring to Fig. 8, be the light distribution effect schematic diagram of the bar shape LED lamp of the present embodiment, the light that LED light source 31 sends is after Transparent Parts 2 reflects, and within the scope mainly concentrating on the light emitting anger of 40 degree, the light distribution of this angular range is even.
Referring to Fig. 9, be the schematic cross-section of Transparent Parts 2 in the 3rd embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, the inner surface 21 of this Transparent Parts 2 is plane, and the outer surface 22 of Transparent Parts 2 is outwardly arc surface.Referring to Figure 10, be the light distribution effect schematic diagram of the bar shape LED lamp of the present embodiment, the light that LED light source 31 sends is after Transparent Parts 2 reflects, and within the scope mainly concentrating on the light emitting anger of 50 degree, the light distribution of this angular range is comparatively even.
Referring to Figure 11, for the schematic cross-section of Transparent Parts in the 4th embodiment of the bar shape LED lamp of symmetrical luminous intensity distribution of the present invention, in order to obtain angular illumination angle, the inner surface 21 of this Transparent Parts 2 is wavy free form surface, wherein inner surface 21 has just to the first trough 212 of LED light source 31, the both sides of the first trough 212 have primary peak 213 respectively, the outside of primary peak 213 has the second trough 214, the outside of the second trough 214 has secondary peak 215, wherein, the height of primary peak 213 is greater than the height of secondary peak 215, the degree of depth of the first trough 212 is greater than the degree of depth of the second trough 214.Referring to Figure 12, be the light distribution effect schematic diagram of the bar shape LED lamp of the present embodiment, the light that LED light source 31 sends is after Transparent Parts 2 reflects, and irradiating angle is at about 150 degree, and the light distribution of this angular range is comparatively even.
In above-mentioned second to the 4th embodiment, in the fastening structure of Transparent Parts 2 and lamp housing 1 and the first embodiment, Transparent Parts 2 is identical with the fastening structure of lamp housing 1, repeat no more, the difference of above-mentioned four embodiments is that the cross sectional shape of Transparent Parts 2 is different, and the angle of the luminous intensity distribution brought thus is different.The bar shape LED lamp of the symmetrical luminous intensity distribution of the present invention, the maximum angle of the light of its LED light source 31 after Transparent Parts 2 reflects is 35 ~ 155 degree, and also namely the irradiating angle of bar shape LED lamp is 35 ~ 155 degree.The cross sectional shape of Transparent Parts 2 is also not limited to above-mentioned concrete shape, inner surface 21 and/or the outer surface 22 of Transparent Parts 2 are free form surface, and this free form surface can for the curved surface stretched along the length direction of lamp body by one or more buses combined in hyperbola, parabola, SPL, circular arc, elliptic arc and line segment.
The bar shape LED lamp of symmetrical luminous intensity distribution of the present invention has the following advantages
1) simplify Design of Luminaires, only need the Transparent Parts designing different free form surface just can realize the symmetrical luminous intensity distribution of strip-shaped LED lamp tool.
2) assembling product is avoided loaded down with trivial details, the feature of not easily installing.
3) reduce manufacturing cost, make product simpler, more frivolous.
4) improve the utilization rate of light, light is sent by LED light source, and the free form surface directly through Transparent Parts reflects, thus reaches the symmetrical luminous intensity distribution design of strip-shaped LED lamp tool, avoids unnecessary optical loss.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (6)
1. the bar shape LED lamp of a symmetrical luminous intensity distribution, it is characterized in that, comprise elongated lamp body, described lamp body comprises lamp housing (1), and the Transparent Parts (2) to fasten with described lamp housing (1), substrate (3) is provided with in described lamp housing (1), described substrate (3) is provided with plurality of LEDs light source (31), described plurality of LEDs light source (31) arranges along the length direction of lamp body, described LED light source (31) is just to described Transparent Parts (2), described Transparent Parts (2) is symmetrical about midplane (4), described midplane (4) was LED light source (31) and the plane perpendicular with described substrate (3), the inner surface (21) of described Transparent Parts (2) and/or outer surface (22) are the free form surface stretched along the length direction of lamp body, the light that described LED light source (31) sends is symmetrical about described midplane (4) after described Transparent Parts (2) refraction,
The inner surface (21) of described Transparent Parts (2) is:
The inner surface (21) of described Transparent Parts (2) has just to first trough (212) of described LED light source (31), the both sides of described first trough (212) have primary peak (213) respectively, the outside of described primary peak (213) has the second trough (214), the outside of described second trough (214) has secondary peak (215), thus makes described LED light source (31) be 150 degree through the irradiating angle of described Transparent Parts (2); The height of described primary peak (213) is greater than the height of secondary peak (215), and the degree of depth of described first trough (212) is greater than the degree of depth of described second trough (214).
2. the bar shape LED lamp of symmetrical luminous intensity distribution according to claim 1, it is characterized in that, described free form surface is the curved surface stretched along the length direction of described lamp body by one or more buses combined in hyperbola, parabola, SPL, circular arc, elliptic arc and line segment.
3. the bar shape LED lamp of symmetrical luminous intensity distribution according to claim 1, is characterized in that, the inner surface (21) of described Transparent Parts (2) and outer surface (22) are the free form surface stretched by SPL.
4. the bar shape LED lamp of symmetrical luminous intensity distribution according to claim 1, is characterized in that, the outer surface (22) of described Transparent Parts (2) is outwardly arc surface.
5. the bar shape LED lamp of the symmetrical luminous intensity distribution according to any one of Claims 1-4, it is characterized in that, the both sides of described lamp housing (1) are provided with seal groove (11), the opening of described seal groove (11) is opened towards outside to direction obliquely, sealing strip (5) is provided with in described seal groove (11), the dual-side of described Transparent Parts (2) is provided with inwards to the attaching part (23) that diagonal upward direction is protruded, described attaching part (23) is buckled in described seal groove (11) and is squeezed between the bottom surface of described attaching part (23) and described seal groove (11) by described sealing strip (5).
6. the bar shape LED lamp of symmetrical luminous intensity distribution according to claim 5, is characterized in that, the inner side of described attaching part (23) has retaining convex stupefied (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070653.8A CN103307493B (en) | 2012-03-16 | 2012-03-16 | A kind of bar shape LED lamp of symmetrical luminous intensity distribution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210070653.8A CN103307493B (en) | 2012-03-16 | 2012-03-16 | A kind of bar shape LED lamp of symmetrical luminous intensity distribution |
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| CN103307493A CN103307493A (en) | 2013-09-18 |
| CN103307493B true CN103307493B (en) | 2016-03-23 |
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| CN101629680A (en) * | 2009-06-29 | 2010-01-20 | 浙江铭洋照明科技股份有限公司 | Led fluorescent tube |
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| CN201764373U (en) * | 2010-07-30 | 2011-03-16 | 黄彭良 | Lamp with connecting device |
| CN101994989A (en) * | 2009-08-20 | 2011-03-30 | 松下电工株式会社 | Optical lens and illumination fixture using the same |
| CN102042556A (en) * | 2009-10-16 | 2011-05-04 | 海洋王照明科技股份有限公司 | Lamp capable of realizing super uniform light spot |
| CN201944775U (en) * | 2010-12-03 | 2011-08-24 | 张治洋 | Irregular lampshade of light emitting diode (LED) lamp |
| CN102182994A (en) * | 2011-04-11 | 2011-09-14 | 浙江捷莱照明有限公司 | Sealing structure for strip-shaped lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952671Y (en) * | 2006-09-21 | 2007-09-26 | 一品光学工业股份有限公司 | Improved structure of light-emitting diode light source device |
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2012
- 2012-03-16 CN CN201210070653.8A patent/CN103307493B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629680A (en) * | 2009-06-29 | 2010-01-20 | 浙江铭洋照明科技股份有限公司 | Led fluorescent tube |
| CN101994989A (en) * | 2009-08-20 | 2011-03-30 | 松下电工株式会社 | Optical lens and illumination fixture using the same |
| CN102042556A (en) * | 2009-10-16 | 2011-05-04 | 海洋王照明科技股份有限公司 | Lamp capable of realizing super uniform light spot |
| CN101788111A (en) * | 2010-01-15 | 2010-07-28 | 上海开腾信号设备有限公司 | Quasi-fluorescence LED illumination monomer and application thereof |
| CN201764373U (en) * | 2010-07-30 | 2011-03-16 | 黄彭良 | Lamp with connecting device |
| CN201944775U (en) * | 2010-12-03 | 2011-08-24 | 张治洋 | Irregular lampshade of light emitting diode (LED) lamp |
| CN102182994A (en) * | 2011-04-11 | 2011-09-14 | 浙江捷莱照明有限公司 | Sealing structure for strip-shaped lamp |
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| CN103307493A (en) | 2013-09-18 |
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