CN103104848B - Lamp lampshade - Google Patents
Lamp lampshade Download PDFInfo
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- CN103104848B CN103104848B CN201310056948.4A CN201310056948A CN103104848B CN 103104848 B CN103104848 B CN 103104848B CN 201310056948 A CN201310056948 A CN 201310056948A CN 103104848 B CN103104848 B CN 103104848B
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- focal zone
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Abstract
The invention discloses a lamp lampshade which comprises a lamp shell, a cone and a light emitting diode (LED) lamp source. The lamp shell is of a reflective bowl structure and comprises an annular plate, the annular plate is provided with a flat portion, a multiple-reflection portion, a second refection portion and a first reflection portion, and the curvature of the flat portion, the multiple-reflection portion, the second reflection portion and the first reflection portion is sequentially increased; and the LED lamp source is fixedly installed on the lamp shell, the cone is fixedly installed above the LED lamp source in a matched mode, the cone is provided with a parallel reflection surface, an overshot light reflection surface and an internal shot light reflection surface, and the horizontal dip angles of the parallel reflection surface, the overshot light reflection surface and the internal shot light reflection surface are sequentially increased. According to the lamp lampshade, the lamp shell is provided with the cone in a matched mode, primary reflection is conducted through the parallel reflection surface, the overshot light reflection surface and the internal shot light reflection surface, the structures of the flat portion, the multiple-reflection portion, the second reflection portion and the first reflection portion are matched to conduct reflection again, and therefore light emitted by the LED lamp source is even and free of the sense of dazzle light.
Description
Technical field
The present invention relates to lighting technical field, especially relate to a kind of lamp lampshade.
Background technology
These three kinds of lightings of street lamp, headlight for vehicles and Down lamp are while the effective illumination beam of generation, and the illuminator of taper can not meet design requirement because of process of surface treatment, causes the above utilizing emitted light of secondary and uncontrollable light to define dazzling dazzle.Although the light of street lamp is very soft, can illuminate road to passerby, the dazzle that it produces can make people not see road, is one of the main light pollution source in city; Because the brightness of headlight for vehicles is high more than street lamp, so peripheral upwards, the outside dazzle of the effective irradiation light of taper than street lamp dazzle more strongly, more dazzling, thus when automobile meeting, the irradiated driver in opposite and pedestrian usually at the moment a slice grow dim, do not see road above and vehicle condition at all, usually operate miss is caused, as easy as rolling off a log generation traffic accident in flurried.
Although existing lighting apparatus also has the design strengthening lateral margin light, as Taiwan Patent bulletin M306299 LED ring shot-light source structure, it is mainly installed with light-guide device above metal cup body, this inner edge, light-guide device upper end has a cambered surface, and be provided with scarf in outside, light-guide device bottom, the scattering that LED lamp source produces is provided, refracted ray, the curvature mirror of and cambered surface inner by light-guide device, this light is caused to be formed with the phenomenon of critical angle total reflection, impel this light scattering in the outer periphery of light-guide device, change shot-light source structure lateral margin face present more light-source brightness to reach LED, but, the outside of light scattering and road optical element also cannot provide telecurie irradiation.
Summary of the invention
Based on this, be necessary, for above-mentioned background technology Problems existing, to provide a kind of reflective glare light source, the dazzle effectively avoiding small size generation high brightness to cause, dazzling phenomenon, reach the lamp lampshade of light source in active set.
For achieving the above object, the invention discloses a kind of light fixture, it comprises lamp housing, bullet and LED lamp source, described lamp housing is reverberation bowl structure, described lamp housing comprises base plate and annular slab, described annular slab is located in around described base plate, and described annular slab is provided with mild portion, multiple reflections portion, secondary reflection portion and primary event portion, and described mild portion, multiple reflections portion, secondary reflection portion and primary event portion curvature increase successively; Described LED lamp source is fixedly installed on base plate, described bullet is fixed coupling and is arranged on above described LED lamp source, described bullet be provided with parallel reflective faces, on penetrate light reflection face and in penetrate light reflection face, described parallel reflective faces, on penetrate light reflection face and in penetrate light reflection face level inclination increase successively.
Wherein in an embodiment, described lamp housing cross section is roughly in " U " shape.
Wherein in an embodiment, the cross section of described bullet is " V " shape.
Wherein in an embodiment, described bullet downside surface is coated with reflector layer.
Wherein in an embodiment, described lamp lampshade periphery is followed successively by focal zone, middle focal zone and lower focal zone from top to bottom, described upper focal zone and middle focal zone are above described bullet, described lower focal zone is below described bullet, the scattering after lamp housing and bullet reflex that emits beam of described LED lamp source enters in upper focal zone, described middle focal zone be reflection ray through blind area, described LED lamp source emit beam through interior penetrate the reflection of light reflection face after arrive lower focal zone.
Wherein in an embodiment, described upper focal zone range is obtained by cone governor body and backplane pitch.
In sum, lamp lampshade of the present invention is by being provided with bullet in lamp housing coupling, the parallel reflective faces of recycling bullet design, on penetrate light reflection face and in penetrate light reflection face multiple camber structure and carry out just secondary reflection, coordinate the mild portion of lamp housing design, multiple reflections portion, secondary reflection portion and primary event cage structure to carry out secondary reflection again, make the light that sends from LED lamp source evenly, more without dazzling light sensation.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is sectional view of the present invention shown in Fig. 1.
Fig. 3 is principle schematic of the present invention shown in Fig. 2.
Fig. 4 is the principle schematic of light reflection of the present invention shown in Fig. 3.
Fig. 5 is the instrumentation plan of critical projectional angle.
Detailed description of the invention
For feature of the present invention, technological means and the specific purposes reached, function can be understood further, below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
As shown in Figures 1 to 5, lamp lampshade of the present invention comprises lamp housing 10, bullet 20 and LED lamp source 30, described lamp housing 10 is reverberation bowl structure, described lamp housing 10 cross section is roughly in " U " shape, described lamp housing 10 comprises base plate 11 and annular slab 12, described annular slab 12 is located in around described base plate 11, described annular slab 12 is provided with mild portion 121, multiple reflections portion 122, secondary reflection portion 123 and primary event portion 124, and described mild portion 121, multiple reflections portion 122, secondary reflection portion 123 and primary event portion 124 curvature progressively increase successively.
Described LED lamp source 30 is fixedly installed on base plate 11, described bullet 20 is fixed coupling and is arranged on above described LED lamp source 30, the cross section of described bullet 20 is " V " shape, described bullet 20 downside surface is coated with reflector layer, reflect with the light that LED lamp source 30 is launched, reduce the congregational rate of LED lamp source 30 emission of light, reduce optically focused phenomenon.Described bullet 20 is provided with parallel reflective faces 21, on penetrate light reflection face 22 and in penetrate light reflection face 23 multiple camber structure, described parallel reflective faces 21, on penetrate light reflection face 22 and in penetrate light reflection face 23 level inclination increase successively, reflex is carried out in an orderly manner with the light sent LED lamp source 30, make from described parallel reflective faces 21, on penetrate light reflection face 22 and in penetrate the light that light reflection face 23 reflects away and can arrive on annular slab 12, the reflex again of annular slab 12 is utilized to carry out scattering to the light that LED lamp source 30 sends, reduce the glare effects that LED lamp source 30 direct projection causes.
Lamp lampshade of the present invention all edges shaft core direction is followed successively by focal zone 40, middle focal zone 50 and lower focal zone 60 from top to bottom, described upper focal zone 40 and middle focal zone 50 are above described bullet 20, described lower focal zone 60 is below described bullet 20, the scattering after lamp housing 10 and the effect of bullet 20 multiple reflections that emits beam of described LED lamp source 30 enters in the scope of upper focal zone 40, by cone governor body 20 and base plate 11 spacing, upper focal zone 40 scope is changed; Described middle focal zone 50 be reflection ray through blind area, described LED lamp source 30 emits beam and arrives lower focal zone 60 through interior penetrating after light reflection face 23 is reflected.
Through theoretical research for many years and practice, invent dazzle principle analysis theoretical, distinct dazzle light beam and the differentiation of non-dazzle light beam and the concept of critical projectional angle, namely critical projectional angle refers to that, in the Design of Luminaires projected from the top down, light should control crevice projection angle.When light is greater than critical projectional angle trend of purchasing ground, there is some light (i.e. dazzle) directly can inject eyes under normal viewing angle (looking squarely); When being only less than critical projectional angle, all light just directly can not inject eyes under normal viewing angle (looking squarely), can not produce dazzle.
The computing formula of critical projectional angle Φ is: tan Φ=C/(A-B), wherein A is the distance of street lamp to ground, and B is the health height of test person, and C is human body to the vertical range of LED lamp source 30 perpendicular to the straight line on ground.
The present invention is according to above-mentioned theory and critical projectional angle principle after tested, lamp housing 10 and bullet 20 is designed in lamp lampshade, namely bullet 20 and lamp housing 10 is adopted to control lighting angle or the region of LED lamp source 30, meet the requirement of critical projectional angle, illumination beam controls in the effective lighting scope and critical projectional angle of overtesting and test with the reflex of lamp housing 10 by such bullet 20 completely, make effective lighting scope illumination evenly, and dazzle light beam can be changed direction and become and effectively irradiate light, anti-dazzle is effective, effectively can eliminate light pollution thus reach the object of anti-dazzle, designed by critical projectional angle, make scattered beam in upper focal zone 40 evenly, free from glare sense.
LED lamp source 30 emission of light of the present invention, wherein a part of light arrives in the scope of lower focal zone 60 through interior penetrating after light reflection face 23 is reflected; Wherein another part light emission is on bullet 20, roundtrip between bullet 20 and lamp housing 10, form Secondary Emission light, four secondary reflection light, six secondary reflection light and eight secondary reflection light, a part of light emission is to the primary event portion 124 of lamp housing 10 simultaneously, and light direct projection after primary event portion 124 is reflected is gone out; LED lamp source 30 emits beam after the reflection of the Shang She light reflection district of bullet 20, pass through mild portion 121 and reflected in parallel district secondary reflection more again, arrive multiple reflections portion 122, utilize critical projectional angle theoretical emission to enter upper focal zone 40, light in upper focal zone 40 evenly, free from glare sense; Simultaneously LED lamp source 30 emits beam and arrive secondary reflection district after parallel reflective faces 21 reflects, secondary reflection district again secondary reflection laggard enter in the scope of focal zone 40.
In sum, lamp lampshade of the present invention is by being provided with bullet 20 in lamp housing 10 coupling, the parallel reflective faces 21 that recycling bullet 20 designs, on penetrate light reflection face 22 and in penetrate light reflection face 23 multiple camber structure and carry out just secondary reflection, the mild portion 121 coordinating lamp housing 10 to design, multiple reflections portion 122, secondary reflection portion 123 and primary event portion 124 structure carry out secondary reflection again, make the light that sends from LED lamp source 30 evenly, more without dazzling light sensation.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. a lamp lampshade, it is characterized in that: comprise lamp housing, bullet and LED lamp source, described lamp housing is reverberation bowl structure, described lamp housing comprises base plate and annular slab, described annular slab is located in around described base plate, described annular slab is provided with mild portion, multiple reflections portion, secondary reflection portion and primary event portion, and described mild portion, multiple reflections portion, secondary reflection portion and primary event portion curvature increase successively; Described LED lamp source is fixedly installed on base plate, described bullet is fixed coupling and is arranged on above described LED lamp source, described bullet be provided with parallel reflective faces, on penetrate light reflection face and in penetrate light reflection face, described parallel reflective faces, on penetrate light reflection face and in penetrate light reflection face level inclination increase successively;
Described lamp lampshade periphery is followed successively by focal zone, middle focal zone and lower focal zone from top to bottom, described upper focal zone and middle focal zone are above described bullet, described lower focal zone is below described bullet, the scattering after lamp housing and bullet reflex that emits beam of described LED lamp source enters in upper focal zone, described middle focal zone be reflection ray through blind area, described LED lamp source emit beam through interior penetrate the reflection of light reflection face after arrive lower focal zone.
2. lamp lampshade according to claim 1, is characterized in that: described lamp housing cross section is roughly in " U " shape.
3. lamp lampshade according to claim 1, is characterized in that: the cross section of described bullet is " V " shape.
4. lamp lampshade according to claim 1, is characterized in that: described bullet downside surface is coated with reflector layer.
5. lamp lampshade according to claim 1, is characterized in that: described upper focal zone range is obtained by cone governor body and backplane pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056948.4A CN103104848B (en) | 2013-02-22 | 2013-02-22 | Lamp lampshade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056948.4A CN103104848B (en) | 2013-02-22 | 2013-02-22 | Lamp lampshade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104848A CN103104848A (en) | 2013-05-15 |
| CN103104848B true CN103104848B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310056948.4A Expired - Fee Related CN103104848B (en) | 2013-02-22 | 2013-02-22 | Lamp lampshade |
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| CN (1) | CN103104848B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542325A (en) * | 2013-06-14 | 2014-01-29 | 秦彪 | Plate-shaped solid state lighting lamp |
| CN107891800B (en) * | 2017-10-16 | 2020-06-02 | 佛山职业技术学院 | Anti-dazzle automobile headlamp lamp group based on laser illumination and illumination control method thereof |
| WO2022057899A1 (en) * | 2020-09-21 | 2022-03-24 | 苏州欧普照明有限公司 | Lighting lamp and light source system thereof |
| CN212929596U (en) * | 2020-09-21 | 2021-04-09 | 苏州欧普照明有限公司 | Lighting lamp and light source system thereof |
| DE102021100513B3 (en) | 2021-01-13 | 2022-04-21 | Bjb Gmbh & Co. Kg | Reflector for a lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0683355A1 (en) * | 1994-05-20 | 1995-11-22 | Reitter & Schefenacker GmbH & Co. KG | Vehicle lamp |
| US6758582B1 (en) * | 2003-03-19 | 2004-07-06 | Elumina Technology Incorporation | LED lighting device |
| CN102449386A (en) * | 2009-04-06 | 2012-05-09 | 克里公司 | Reflector system for lighting device |
| CN102588787A (en) * | 2012-02-14 | 2012-07-18 | 杭州光锥科技有限公司 | Even high-power light-emitting diode (LED) light source based on reflection and transmission type |
| JP4995989B2 (en) * | 2010-10-12 | 2012-08-08 | パナソニック株式会社 | lamp |
| CN203215318U (en) * | 2013-02-22 | 2013-09-25 | 东莞市友美电源设备有限公司 | Lampshade for lamp |
-
2013
- 2013-02-22 CN CN201310056948.4A patent/CN103104848B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0683355A1 (en) * | 1994-05-20 | 1995-11-22 | Reitter & Schefenacker GmbH & Co. KG | Vehicle lamp |
| US6758582B1 (en) * | 2003-03-19 | 2004-07-06 | Elumina Technology Incorporation | LED lighting device |
| CN102449386A (en) * | 2009-04-06 | 2012-05-09 | 克里公司 | Reflector system for lighting device |
| JP4995989B2 (en) * | 2010-10-12 | 2012-08-08 | パナソニック株式会社 | lamp |
| CN102588787A (en) * | 2012-02-14 | 2012-07-18 | 杭州光锥科技有限公司 | Even high-power light-emitting diode (LED) light source based on reflection and transmission type |
| CN203215318U (en) * | 2013-02-22 | 2013-09-25 | 东莞市友美电源设备有限公司 | Lampshade for lamp |
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| Publication number | Publication date |
|---|---|
| CN103104848A (en) | 2013-05-15 |
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