CN102261620A - LED (light emitting diode) light source reflector - Google Patents
LED (light emitting diode) light source reflector Download PDFInfo
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- CN102261620A CN102261620A CN2011102651200A CN201110265120A CN102261620A CN 102261620 A CN102261620 A CN 102261620A CN 2011102651200 A CN2011102651200 A CN 2011102651200A CN 201110265120 A CN201110265120 A CN 201110265120A CN 102261620 A CN102261620 A CN 102261620A
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- reflector
- light source
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- camber line
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Abstract
The invention discloses an LED (light emitting diode) light source reflector which comprises an LED light source, a base and a reflector, wherein the base is used for mounting and fixing the LED light source; the reflector is fixed on the base through a mounting plane; and when the distance K from the initial point of a side camber line of the reflector to the central point of the light source is larger than or equal to 4mm and less than or equal to 50mm, the side camber line of the reflector meets the cubic curve equation, namely y= ax3+bx2+cx+d, wherein x is the radius of the reflector, y is the height of the reflector, 40mm<=x<=82.9mm, 0.00264<=a<=0.03, minus 3.66<=b<=minus0.4644, 28.5<=c<=180, and minus 2444<=d<=minus 593. The module structure of the reflector provided by the invention can be suitable for requirements of different light beam angles under different conditions, the lighting quality and the light source utilization ratio can be improved, the spacing height ratio and uniformity degree requirements for a light fitting can be met, and the color spot phenomenon in the lighting region is eliminated; and the different structure requirements for light beam angles of the reflector can be realized through studying the confirmed corresponding parameters.
Description
Technical field
The invention belongs to lighting, especially belong to the LED lighting, particularly the reflector of LED lighting.
Background technology
The industrial lighting lamp is the indispensable lighting apparatus of industrial site, and the traditional industry illuminating lamp adopts high-pressure mercury lamp more, and not only power consumption is big, and surface temperature is too high in the light fixture use, has potential safety hazard.LED has cold light source, and advantages such as energy-saving and environmental protection, life-span length, safety adopt the LED light fixture can avoid the defective of conventional lamp.
But because LED has high directivity, the lamp lighting zone is narrow and small, existing LED industrial lighting lamp does not pass through reasonable luminous intensity distribution or employing typical circular reflector, when lamp installation is excessive apart from height ratio, the illumination uniformity is not ideal enough, and there is aberration in the light of LED, and the lamp light source utilization rate is low, so in irradiation area, color spot, blackening can occur, influence normal operation.
For different lighting requirements, usually need different illuminating bundle angles, usually the illuminating bundle angle realizes by the reflector luminous intensity distribution, how in same designing a model, to realize different illuminating bundle angle requirements, convenient design is produced, and satisfying different illuminating bundle angles simultaneously, can also improve lighting quality and light source utilization rate, satisfy lamp installation apart from high uniformity requirement when, eliminate the color spot phenomenon in the field of illumination, the raising lighting quality is that the LED illuminating industry is made great efforts the technical problem that solves always.
Summary of the invention
The present invention discloses a kind of led light source reflector according to the deficiencies in the prior art, the problem to be solved in the present invention provides a kind of irregular curved surface reflector model structure, this reflector model structure can adapt to the requirement of different illuminating bundle angles under different conditions, and can improve lighting quality and light source utilization rate, satisfy lamp installation apart from high uniformity requirement when, eliminate the color spot phenomenon in the field of illumination.
The present invention is achieved through the following technical solutions:
The led light source reflector, comprise led light source, install and fix the base of led light source and be fixed on the reflector of base by mounting plane, wherein: when the starting point of the side camber line of described reflector apart from light source center point during apart from 4mm≤k≤50mm, the side camber line of described reflector satisfies cubic curve equation: y=ax
3+ bx
2+ cx+d, wherein x is the reflector radius, y is a reflector height, 40mm≤x≤82.9mm, 0.00264≤a≤0.03 ,-3.66≤b≤-0.4644,28.5≤c≤180 ,-2444≤d≤-593.
Above-mentioned reflector preferred version is: when the starting point of the side camber line of reflector apart from light source center point during apart from k=40mm, the side camber line of reflector satisfies cubic curve equation: y=ax
3+ bx
2+ cx+d, 40mm≤x≤53.503mm wherein, 0.0247≤a≤0.03 ,-3.66≤b≤-3.3,147≤c≤180 ,-2444≤d≤-2198.
Further preferred reflector side camber line satisfies cubic curve equation y=ax
3+ bx
2+ cx+d, 40mm≤x≤53.503mm wherein, 0.02747≤a≤0.0275 ,-3.656≤b≤-3.652,163.1≤c≤163.3 ,-2444≤d≤-2442.
The starting point of above-mentioned side camber line when reflector is apart from light source center point during apart from k=40mm, reflector height y=40mm～43mm.Led light source emits beam behind the reflector secondary light-distribution, and beam angle is 100 °～106 °.
Another preferred version of above-mentioned reflector is: when the starting point of the side camber line of reflector apart from light source center point during apart from k=50mm, the side camber line of reflector satisfies equation group: y=ax
3+ bx
2+ cx+d, 50mm≤x≤82.9mm, 0.00264≤a≤0.00266 ,-0.467≤b≤-0.4644,28.5≤c≤28.756 ,-600≤d≤-593, wherein x is the reflector radius, y is a reflector height.
When the starting point of the side camber line of reflector apart from light source center point during apart from k=50mm, reflector height y=76mm～82mm.Led light source emits beam behind the reflector secondary light-distribution, and beam angle is 70 °～76 °.
Reflector of the present invention also has following advantage:
1, reflector of the present invention satisfy respectively 1.5 times of lamp installation apart from height ratio, 1 times with interior during apart from height ratio, uniformity of illuminance satisfies architectural lighting design uniformity of illuminance 0.7 above standard more than 0.9 in the operating area.
2, the present invention can manufacture and design reflector 1.5 during apart from height ratio, the uniformity of illuminance of wide-angle industrial lighting lamp more than 0.9, eliminate existing industrial lighting lamp owing to uniformity of illuminance less than the 0.7 blackening phenomenon that produces.
3, because there is aberration in led light source, so there is aberration in irradiation area, led light source makes led light source emergent ray mixed light behind reflector luminous intensity distribution of the present invention, eliminate the aberration phenomenon in the irradiation area.
4, because the brightness value size of any and light source square being inversely proportional to that emit beam on the receiving plane to the distance of this point, so light fixture that tradition does not design through luminous intensity distribution, a part of light does not shine on the working face or shines hypertelorism on the working face in the light source emergent ray, and the efficiency of light energy utilization is low.Led light source is behind reflector luminous intensity distribution of the present invention, and emergent ray is radiated in the working region through beeline, promotes the efficiency of light energy utilization.
5, by changing the pip of article one emergent ray, increase in proportion or dwindle other points on the curvilinear equation, can change reflector side camber line equation of the present invention, thereby produce the reflector that satisfies Different Light size luminous intensity distribution.
In sum, helpfulness of the present invention, reflector model structure of the present invention can adapt to the requirement of different illuminating bundle angles under different conditions, and can improve lighting quality and light source utilization rate, satisfy lamp installation apart from high uniformity requirement when, eliminate the color spot phenomenon in the field of illumination; Can realize the different structure needs of reflector by the relevant parameter of determining to beam angle.
Description of drawings
Fig. 1 is a reflector side camber line sectional structure schematic diagram of the present invention;
Fig. 2 is a side camber line schematic diagram of the present invention;
Fig. 3 is a reflector perspective view of the present invention;
Fig. 4 is reflector one an embodiment side camber line coordinate diagram of the present invention;
Fig. 5 is reflector one embodiment distribution curve flux figure of the present invention;
Fig. 6 is another embodiment side camber line coordinate diagram of reflector of the present invention;
Fig. 7 is another embodiment distribution curve flux of reflector of the present invention figure.
Among the figure, the 1st, reflector, the 2nd, base, the 3rd, led light source, K are that the starting point of the side camber line of reflector is put distance apart from light source center, and x is the reflector radius, and y is the reflector height.
The specific embodiment
The present invention is further described below in conjunction with the specific embodiment, and the specific embodiment is to the further specifying of the principle of the invention, and does not limit the present invention in any way, or similar techniques identical with the present invention all do not exceed the scope of protection of the invention.
Determining of reflector side camber line equation of the present invention and each parameter value.
In conjunction with Fig. 2, as shown in the figure:
1) according to satisfying 1.5 times respectively apart from height ratio, single uniformity requirement during doubly apart from height ratio, eliminate aberration in the field of illumination, blackening simultaneously, improve the purpose of design of the efficiency of light energy utilization, light source is sent energy receiving on the plane, obtain light source (being incident ray) the pairing emergent ray that emits beam from new distribution;
2) (angle of reflection equals incidence angle θ according to reflection law
1=θ
2), determine emit beam after reflection tangential direction K of light source
1, K
2
3) the pip Q of setting article one incident ray
1
4) by the straight line one and a process point Q that through light emitted center slope are K
1Slope is K
2Straight line two intersect and determine pip Q
2
5) by 4) described, determine the pip Q of every emergent ray successively
3, Q
4
The point Q that 6) will obtain
1, Q
2Data fitting obtains cubic curve equation: y=ax
3+ bx
2+ cx+d;
7) curvilinear equation fluctuates within the specific limits, is foundation to meet design requirement, and determines the span of each parameter value in the curvilinear equation.Specifically be to adjust each parameter coefficient of curvilinear equation within the specific limits successively, is that rotating shaft is rotated into irregular surface of revolution with curve with the light source center line, lead-in light is learned true software, is condition each parameter coefficient excursion of constraint curve equation respectively with the field of illumination uniformity more than or equal to 0.9.
In conjunction with Fig. 1 to Fig. 5, as shown in the figure.A kind of luminous reflector of led light source 3 that adopts.Reflector 1 is fixed on the led chip base 2 by mounting plane.
When the starting point of the side camber line of reflector 1 apart from light source center point during apart from k=40mm, reflector 1 side camber line satisfies cubic curve equation y=ax
3+ bx
2+ cx+d, wherein, 40mm≤x≤53.503mm, 0.0247≤a≤0.03,-3.66≤b≤-3.3,147≤c≤180 ,-2442.26≤d≤-2198, x is reflector 1 radius, x is 1 length to the y axle on the camber line as shown in Figure 4, and y is reflector 1 height, and y is 1 length to the x axle on the camber line, when k changed, each point changed synchronously with variable in distance on the curvilinear equation.
Comparatively preferred scheme is: the side camber line of reflector 1 satisfies cubic curve equation: y=ax
3+ bx
2+ cx+d, 40mm≤x≤53.503mm wherein, 0.02747≤a≤0.0275 ,-3.656≤b≤-3.652,163.1≤c≤163.3 ,-2444≤d≤-2442), wherein x is reflector 1 radius, y is reflector 1 height.
When the starting point of the side camber line of reflector 1 apart from light source center point during apart from k=40mm, reflector 1 height 40mm～43mm.
As shown in Figure 4, when the starting point of the side camber line of reflector 1 when light source center point changes apart from k, each point changes synchronously with variable in distance on the curvilinear equation, can make the reflector of different size, 4mm≤k≤50mm.
As shown in Figure 5, led light source emits beam behind reflector 1 secondary light-distribution, energy of light source in 100 °～106 ° scopes of beam angle from new distribution, the uniformity requirement in the time of can satisfying lamp installation apart from 1.5 times of height ratios.
This example has realized the wide-angle reflection device on model structure of the present invention basis, and the LED illumination has advantages such as energy-saving and environmental protection, life-span length, safety, high directivity.But because LED has high directivity, the lamp lighting zone is narrow and small, existing LED industrial lighting lamp does not pass through reasonable luminous intensity distribution or employing typical circular reflector, when lamp installation is excessive apart from height ratio, the illumination uniformity is not ideal enough, there is aberration in the light of LED, so color spot, blackening can occur in irradiation area, influences normal operation.
The purpose of this routine wide-angle industrial lighting lamp reflector is to solve the deficiency that above-mentioned LED industrial lighting lamp reflector exists, a kind of new wide-angle industrial lighting lamp reflector is provided, the color spot phenomenon in the field of illumination is eliminated in uniformity requirement in the time of can satisfying lamp installation apart from 1.5 times of height ratios.
Above-mentionedly be meant the ratio of distance and light fixture suspension height between the adjacent two light fixture light centers apart from height ratio, suspension height is by the height of light fixture center to working face.Above-mentioned uniformity of illuminance is on the regulation surface, the ratio of minimal illumination and average illumination, and by architectural lighting design standard regulation, the industrial lighting place, the general illumination uniformity of illuminance of operating area should not be lower than 0.7.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 6, Fig. 7, as shown in the figure.A kind of industrial lighting lamp reflector that adopts led light source, reflector 1 is fixedly mounted on the LED base 2, is used for led light source 3 and goes out reflection of light.
When the starting point of the side camber line of reflector 1 apart from light source center point during apart from k=50mm, the side camber line of reflector 1 satisfies equation group: y=ax
3+ bx
2+ cx+d wherein, 50mm≤x≤82.9mm, 0.00264≤a≤0.00266 ,-0.467≤b≤-0.4644,28.5≤c≤28.756 ,-600≤d≤-593), wherein x is reflector 1 radius, y is reflector 1 height.
When the starting point of the side camber line of reflector 1 apart from light source center point during apart from k=50mm, reflector 1 height y is 76mm～82mm.
As shown in Figure 6, when the starting point of the side camber line of reflector 1 when light source center point changes apart from k, each point changes synchronously with variable in distance on the curvilinear equation, can make the reflector of different size, 4mm≤k≤50mm.
As shown in Figure 7, led light source emits beam behind the reflector secondary light-distribution, and energy of light source from new distribution, can satisfy the uniformity requirement of lamp installation in one times of height ratio the time in 70 °～76 ° scopes of beam angle.
The industrial lighting lamp is the indispensable lighting apparatus of industrial site, and traditional industry illuminating lamp fecund is used high-pressure mercury lamp, and not only power consumption is big, and surface temperature is too high in the light fixture use, has potential safety hazard.
LED has cold light source, and advantages such as energy-saving and environmental protection, life-span length, safety adopt the LED light fixture can avoid the defective of conventional lamp.
This example has realized the low-angle reflector on model structure of the present invention basis, and existing LED industrial lighting lamp is not through luminous intensity distribution or adopt the typical circular reflector, and the illumination uniformity is not ideal enough, and there is aberration in LED light, and the lamp light source utilization rate is low simultaneously.
The purpose of this routine low-angle industrial lighting lamp reflector is to solve the deficiency that above-mentioned LED industrial lighting lamp reflector exists, and a kind of new low-angle industrial lighting lamp reflector is provided.The light angle of this routine low-angle industrial lighting lamp reflector is 72 °, improved the illumination efficiency of industrial lighting lamp, promote the light source utilization rate, in one times of height ratio, eliminated existing LED industrial lighting lamp can form inhomogeneous hot spot in the field of illumination deficiency in lamp installation.
Claims (8)
1. led light source reflector, comprise led light source (3), install and fix the base (2) of led light source (3) and be fixed on the reflector (1) of base (2) by mounting plane, it is characterized in that: apart from 4mm≤k≤50mm, the side camber line of described reflector (1) satisfies cubic curve equation: y=ax to the starting point of the side camber line of described reflector (1) apart from light source center point
3+ bx
2+ cx+d, wherein x is the reflector radius, y is a reflector height, 40mm≤x≤82.9mm, 0.00264≤a≤0.03 ,-3.66≤b≤-0.4644,28.5≤c≤180 ,-2444≤d≤-593.
2. led light source reflector according to claim 1 is characterized in that: apart from k=40mm, the side camber line of reflector (1) satisfies cubic curve equation: y=ax to the starting point of the side camber line of reflector (1) apart from light source center point
3+ bx
2+ cx+d, 40mm≤x≤53.503mm wherein, 0.0247≤a≤0.03 ,-3.66≤b≤-3.3,147≤c≤180 ,-2444≤d≤-2198.
3. led light source reflector according to claim 2 is characterized in that: reflector (1) side camber line satisfies cubic curve equation y=ax
3+ bx
2+ cx+d, 40mm≤x≤53.503mm wherein, 0.02747≤a≤0.0275 ,-3.656≤b≤-3.652,163.1≤c≤163.3 ,-2444≤d≤-2442.
4. according to each described led light source reflector of claim 1 to 3, it is characterized in that: apart from k=40mm, reflector (1) is y=40mm～43mm highly apart from light source center point for the starting point of the side camber line of reflector (1).
5. led light source reflector according to claim 4 is characterized in that: led light source emits beam behind described reflector (1) secondary light-distribution, and beam angle is 100 °～106 °.
6. led light source reflector according to claim 1 is characterized in that: apart from k=50mm, the side camber line of reflector (1) satisfies equation group to the starting point of the side camber line of reflector (1): y=ax apart from light source center point
3+ bx
2+ cx+d, 50mm≤x≤82.9mm, 0.00264≤a≤0.00266 ,-0.467≤b≤-0.4644,28.5≤c≤28.756 ,-600≤d≤-593, wherein x is reflector (a 1) radius, y be reflector (1) highly.
7. according to claim 1 or 6 described led light source reflectors, it is characterized in that: the starting point of the side camber line of reflector (1) apart from light source center point apart from k=50mm, reflector height y=76mm～82mm.
8. led light source reflector according to claim 7 is characterized in that: led light source emits beam behind described reflector (1) secondary light-distribution, and beam angle is 70 °～76 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110265120.0A CN102261620B (en) | 2011-09-08 | 2011-09-08 | LED (light emitting diode) light source reflector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110265120.0A CN102261620B (en) | 2011-09-08 | 2011-09-08 | LED (light emitting diode) light source reflector |
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| Publication Number | Publication Date |
|---|---|
| CN102261620A true CN102261620A (en) | 2011-11-30 |
| CN102261620B CN102261620B (en) | 2014-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566224A (en) * | 2014-12-05 | 2015-04-29 | 佛山市南海朗烨光电科技有限公司 | Reflector |
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| CN102261620B (en) | 2014-03-19 |
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