CN103363314A - Stripped LED lamp with dissymmetric light distribution - Google Patents
Stripped LED lamp with dissymmetric light distribution Download PDFInfo
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- CN103363314A CN103363314A CN2012100824356A CN201210082435A CN103363314A CN 103363314 A CN103363314 A CN 103363314A CN 2012100824356 A CN2012100824356 A CN 2012100824356A CN 201210082435 A CN201210082435 A CN 201210082435A CN 103363314 A CN103363314 A CN 103363314A
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- lamp
- led lamp
- light distribution
- bar shape
- transparent member
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Abstract
The invention relates to a stripped LED lamp with dissymmetric light distribution. The stripped LED lamp comprises a rectangular lamp body. The lamp body comprises a lamp shell and clear parts buckled with the lamp shell. The lamp shell is provided with a substrate and the substrate is provided with a plurality of LED light sources. The LED light sources are arranged along the length direction of the lamp body. The LED light sources face the clear parts directly and the inner surfaces and/or external surfaces of the clear parts are the free-form surfaces stretched along the length direction of the lamp body. Light rays emitted from the LED light sources are refracted by the clear parts and emit within an inclined angle on one side of a middle plane. The middle plane penetrates the LED light sources and is vertical to the substrate. With the stripped LED lamp with the dissymmetric light distribution, the clear parts are utilized to distribute lights of the LED light sources to achieve the design of dissymmetric light distribution; extra holders, lens, reflectors and the like are not needed to be mounted in the lamp, so that the stripped LED lamp is lighter and thinner, the loss of the light can be reduced and the cost of lamps can be lowered.
Description
Technical field
The present invention relates to bar shape LED lamp, more particularly, relate to a kind of bar shape LED lamp of asymmetric light distribution.
Background technology
The light-configuration mode of strip-shaped LED lamp tool mainly is divided into symmetrical luminous intensity distribution and asymmetric light distribution.In the design of the luminous intensity distribution of existing bar shape LED lamp, asymmetric light distribution mainly realizes by dual mode, and first kind of way is to reach by led light source and transparent member are offset certain angle; The second way be by one can the anglec of rotation support the strip-shaped LED lamp tool is fixed on the installed surface, then runing rest reaches the asymmetric light distribution design of the different angles of whole strip-shaped LED lamp tool.Mainly there is following shortcoming in this two schemes: 1, led light source is when the inner installation of lamp body structure, need larger lamp body structure could satisfy the angular deflection of led light source, can cause like this lamp body structure of strip-shaped LED lamp tool bigger than normal, can't satisfy lightweight, the design advantage such as volume is little, structure is frivolous of light fixture; If 2, strip-shaped LED lamp tool asymmetric light distribution adopts runing rest to realize, cause whole lamp installation method inconvenience, need to join different runing rests, and also support protrusion, inharmonious, attractive in appearance not with lamp body structure, more difficult installation.
Summary of the invention
The technical problem to be solved in the present invention is, defects for the bar shape LED lamp of the asymmetric light distribution of prior art, a kind of bar shape LED lamp of asymmetric light distribution is provided, the bar shape LED lamp of this asymmetric light distribution is simple in structure, utilize transparent member that led light source is carried out luminous intensity distribution, do not need to increase extra member, the lightening design of favourable and bar shape LED lamp.
The technical solution adopted for the present invention to solve the technical problems is: the bar shape LED lamp of constructing a kind of asymmetric light distribution, comprise elongated lamp body, described lamp body comprises lamp housing, and the transparent member that fastens with described lamp housing, be provided with substrate in the described lamp housing, described substrate is provided with the plurality of LEDs light source, described plurality of LEDs light source is arranged along the length direction of lamp body, described led light source is over against described transparent member, the inner surface of described transparent member and/or outer surface are the free form surface along the length direction stretching of lamp body, the light that described led light source sends directive after the refraction of described transparent member is positioned at an angular range of a side of midplane, described midplane be described led light source and with the perpendicular plane of described substrate.
In the bar shape LED lamp of asymmetric light distribution of the present invention, the curved surface of described free form surface for stretching and form along the length direction of described lamp body by one or more buses that combine in hyperbola, parabola, SPL, circular arc, elliptic arc and the line segment.
In the bar shape LED lamp of asymmetric light distribution of the present invention, described inner surface has the crest that protrudes to described led light source direction, and the summit of described crest is positioned at a side of described midplane.
In the bar shape LED lamp of asymmetric light distribution of the present invention, the both sides of described crest have respectively the first surface of indent and the second curved surface of indent.
In the bar shape LED lamp of asymmetric light distribution of the present invention, the curvature of described first surface is greater than the curvature of described the second curved surface.
In the bar shape LED lamp of asymmetric light distribution of the present invention, described outer surface is level and smooth curved surface.
In the bar shape LED lamp of asymmetric light distribution of the present invention, described angular range is 0 to 90 degree.
In the bar shape LED lamp of asymmetric light distribution of the present invention, described angular range is 30 degree, 40 degree, 60 degree or 80 degree.
In the bar shape LED lamp of asymmetric light 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 the direction under oblique towards the outside, described seal groove is provided with sealing strip in (11), the dual-side of described transparent member is provided with the attaching part that inwards protrudes to diagonal upward direction, and described attaching part is buckled in the described seal groove described sealing strip is squeezed between the bottom surface of described attaching part and described seal groove.
In the bar shape LED lamp of asymmetric light distribution of the present invention, it is protruding stupefied that the inboard of described attaching part has retaining.
Implement the bar shape LED lamp of asymmetric light distribution of the present invention, has following beneficial effect: in the bar shape LED lamp of asymmetric light distribution of the present invention, utilize transparent member that led light source is carried out luminous intensity distribution, to realize the asymmetric light distribution design, no longer need to extra support, lens, reflector etc. be set in lamp interior, so that bar shape LED lamp is more frivolous, and can reduce light loss, reduce the cost of light fixture.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the 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 asymmetric light distribution of the present invention;
Fig. 3 is the schematic cross-section of the first embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention;
Fig. 4 is the schematic cross-section of transparent member of the first embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention;
Fig. 5 is the light distribution effect figure of the first embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention;
Fig. 6 is the schematic cross-section of transparent member of the second embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention;
Fig. 7 is the light distribution effect figure of the second embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, 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.
Such as Fig. 2, shown in Figure 3, schematic diagram for the first embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention, this bar shape LED lamp comprises elongated lamp body, and lamp body comprises lamp housing 1, and the transparent member 2 that fastens with lamp housing 1, lamp housing 1 and transparent member 2 are encircled into a cavity, are used for being provided with the substrate 3 of led light source 31, and transparent member 3 had both played the effect of lampshade, play again the effect to led light source 21 luminous intensity distributions, the two ends of lamp body also are 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 is arranged 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 over against transparent member 2, transparent member 2 is about midplane 4 symmetries, wherein, midplane 4 be plurality of LEDs light source 31 and with the perpendicular plane of substrate 3, the inner surface 21 of transparent member 2 and outer surface 22 are the free form surface along the length direction stretching of lamp body, the light that led light source 31 sends directive after transparent member 2 refractions is positioned at an angular range of a side of midplane 4, also be that the light that led light source 31 sends passes through after transparent member 2 refractions, major part is positioned at an angular range, this angular range is positioned at a side of midplane 4, to realize the asymmetric light distribution of bar shape LED lamp.Referring to Fig. 4, in the present embodiment, the inner surface 21 of transparent member 2 has the crest 211 that protrudes to led light source 211 directions, the summit of crest 211 is positioned at a side of midplane 4, has respectively the first surface 212 of indent and the second curved surface 213 of indent in the both sides of crest 211, wherein, the curvature of first surface 212 is greater than the curvature of the second curved surface 213, the outer surface 22 of transparent member 2 is level and smooth curved surface, and so-called level and smooth curved surface refers to the curved surface smooth transition, does not have crest or trough.The light distribution effect of the bar shape LED lamp of the asymmetric light distribution of the first embodiment as shown in Figure 5, the light that led light source 31 sends most of directive after transparent member 2 refractions departs from the angular range of midplane 4, this angular range is roughly 30 degree, the light that led light source 31 sends is distribution or asymmetrical distribution after refraction, can be for a certain zone that needs illumination, in this angular range, illumination is more uniform.Carry out luminous intensity distribution owing to directly utilizing transparent member 2 for led light source 31, do not need the extra inside at housing 1 that runing rest, light-distribution lens or reflector are set, can make the structure of lamp body more compact, reduce the volume and weight of light fixture, reduce the cost of light fixture, make bar shape LED lamp more frivolous.
Referring to Fig. 2 and Fig. 3, in order to realize the quick assembling of light fixture, 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 the direction under oblique towards the outside, be provided with sealing strip 5 in the seal groove 11, the dual-side of transparent member 2 is provided with the attaching part 23 that inwards protrudes to diagonal upward direction, transparent member 2 fastens with lamp housing 1 by attaching part 23 and cooperates, attaching part 23 is buckled between the interior bottom surface that sealing strip 5 is squeezed in attaching part 23 and seal groove 11 of seal groove 11, guarantee the excellent sealing of transparent member 2 and housing 1 junction, owing to adopting the mode combination that fastens, with respect to adopting the structure that glue is bonding or adopt screw to fix, I﹠ M is all very convenient, and the favourable volume and weight that reduces light fixture.In order to prevent that transparent member 2 and housing 1 from throwing off, have a retaining in the inboard of the attaching part 23 of transparent member 2 protruding stupefied 231, this retaining protruding stupefied 231 is mutually spacing with the edge of seal groove 11, stops transparent member 2 and housing 1 disengagement.
Referring to Fig. 6, sectional view for the transparent member 2 of the second embodiment of the bar shape LED lamp of asymmetric light distribution of the present invention, the cross sectional shape of the cross sectional shape of the transparent member 2 among this embodiment and the transparent member of the first embodiment is similar substantially, be because range of exposures is different, thereby cause the design parameter of curved surface different.The inner surface 21 of this transparent member 2 has the crest 211 that protrudes to led light source 211 directions, the summit of crest 211 is positioned at a side of midplane 4, have respectively the first surface 212 of indent and the second curved surface 213 of indent in the both sides of crest 211, wherein, the curvature of first surface 212 is greater than the curvature of the second curved surface 213, and the outer surface 22 of transparent member 2 is level and smooth curved surface.The light distribution effect of the second embodiment as shown in Figure 7, the light that led light source 31 sends most of directive after transparent member 2 refractions departs from the angular range of midplane 4, this angular range is roughly 60 degree, and the light that led light source 31 sends is distribution or asymmetrical distribution after refraction.
The bar shape LED lamp of asymmetric light distribution of the present invention has following having a few
1) simplifies the design of the bar shape LED lamp of asymmetric light distribution, only needed the transparent member 2 of the different free form surfaces of design just can realize the asymmetric light distribution of strip-shaped LED lamp tool, do not needed lens, reflector and anglec of rotation support.
2) avoid assembling product loaded down with trivial details, be difficult for the characteristics of installing.
3) effectively reduce manufacturing cost, make product simpler, more frivolous.
4) promoted the utilization rate of light, light is sent by led light source, and directly the free form surface through transparent member reflects, thereby reaches the asymmetric light distribution design of strip-shaped LED lamp tool, avoids unnecessary optical loss.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (10)
1. the bar shape LED lamp of an asymmetric light distribution, it is characterized in that, comprise elongated lamp body, described lamp body comprises lamp housing (1), and the transparent member (2) that fastens with described lamp housing (1), be provided with substrate (3) in the described lamp housing (1), described substrate (3) is provided with plurality of LEDs light source (31), described plurality of LEDs light source (31) is arranged along the length direction of lamp body, described led light source (31) is over against described transparent member (2), the inner surface (21) of described transparent member (2) and/or outer surface (22) are the free form surface along the length direction stretching of lamp body, the light that described led light source (31) sends directive after described transparent member (2) refraction is positioned at an angular range of a side of midplane (4), described midplane (4) be described led light source (31) and with the perpendicular plane of described substrate (3).
2. the bar shape LED lamp of asymmetric light distribution according to claim 1, it is characterized in that the curved surface of described free form surface for stretching and form along the length direction of described lamp body by one or more buses that combine in hyperbola, parabola, SPL, circular arc, elliptic arc and the line segment.
3. the bar shape LED lamp of asymmetric light distribution according to claim 1, it is characterized in that, described inner surface (21) has the crest (211) that protrudes to described led light source (211) direction, and the summit of described crest (211) is positioned at a side of described midplane (4).
4. the bar shape LED lamp of asymmetric light distribution according to claim 3 is characterized in that, the both sides of described crest (211) have respectively the first surface (212) of indent and second curved surface (213) of indent.
5. the bar shape LED lamp of asymmetric light distribution according to claim 4 is characterized in that, the curvature of described first surface (212) is greater than the curvature of described the second curved surface (213).
6. the bar shape LED lamp of asymmetric light distribution according to claim 3 is characterized in that, described outer surface (22) is level and smooth curved surface.
7. according to claim 1 to the bar shape LED lamp of 6 each described asymmetric light distributions, it is characterized in that, described angular range is 0 to 90 degree.
8. the bar shape LED lamp of asymmetric light distribution according to claim 7 is characterized in that, described angular range is 30 degree, 40 degree, 60 degree or 80 degree.
9. the bar shape LED lamp of asymmetric light distribution according to claim 7, 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 the direction under oblique towards the outside, be provided with sealing strip (5) in the described seal groove (11), the dual-side of described transparent member (2) is provided with the attaching part (23) that inwards protrudes to diagonal upward direction, and described attaching part (23) is buckled in the described seal groove (11) described sealing strip (5) is squeezed between the bottom surface of described attaching part (23) and described seal groove (11).
10. the bar shape LED lamp of asymmetric light distribution according to claim 9 is characterized in that, the inboard of described attaching part (23) has retaining protruding stupefied (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082435.6A CN103363314B (en) | 2012-03-26 | 2012-03-26 | A kind of bar shape LED lamp of asymmetric light distribution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082435.6A CN103363314B (en) | 2012-03-26 | 2012-03-26 | A kind of bar shape LED lamp of asymmetric light distribution |
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| Publication Number | Publication Date |
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| CN103363314A true CN103363314A (en) | 2013-10-23 |
| CN103363314B CN103363314B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210082435.6A Active CN103363314B (en) | 2012-03-26 | 2012-03-26 | A kind of bar shape LED lamp of asymmetric light distribution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604074A (en) * | 2013-11-28 | 2014-02-26 | 常州市武进区半导体照明应用技术研究院 | Building material lamp |
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| US20120050889A1 (en) * | 2010-08-30 | 2012-03-01 | Edison Opto Corporation | Optical lens |
| CN202165991U (en) * | 2011-08-02 | 2012-03-14 | 海洋王照明科技股份有限公司 | Lens and LED lamp |
| CN102374485A (en) * | 2010-08-24 | 2012-03-14 | 三星Led株式会社 | Optical lens, led module having the optical lens, and lighting apparatus having the led module |
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Patent Citations (9)
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| CN101553691A (en) * | 2006-10-10 | 2009-10-07 | Ibv控股有限公司 | Light |
| KR100936430B1 (en) * | 2009-07-20 | 2010-01-12 | 주식회사 태경컨설턴트 | Bar type lens having dissymmetry section and lighting module for device of lighting street using the same |
| CN101639198A (en) * | 2009-08-24 | 2010-02-03 | 深圳市九拓光电有限公司 | Light-emitting diode lens |
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| CN102374485A (en) * | 2010-08-24 | 2012-03-14 | 三星Led株式会社 | Optical lens, led module having the optical lens, and lighting apparatus having the led module |
| US20120050889A1 (en) * | 2010-08-30 | 2012-03-01 | Edison Opto Corporation | Optical lens |
| CN201944775U (en) * | 2010-12-03 | 2011-08-24 | 张治洋 | Irregular lampshade of light emitting diode (LED) lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103604074A (en) * | 2013-11-28 | 2014-02-26 | 常州市武进区半导体照明应用技术研究院 | Building material lamp |
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| CN103363314B (en) | 2015-08-05 |
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