CN103175093A - All-light-distribution optical system used for light-emitting diode (LED) ball bulb lamp - Google Patents
All-light-distribution optical system used for light-emitting diode (LED) ball bulb lamp Download PDFInfo
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- CN103175093A CN103175093A CN2013100517846A CN201310051784A CN103175093A CN 103175093 A CN103175093 A CN 103175093A CN 2013100517846 A CN2013100517846 A CN 2013100517846A CN 201310051784 A CN201310051784 A CN 201310051784A CN 103175093 A CN103175093 A CN 103175093A
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Abstract
The invention discloses an all-light-distribution optical system used for a light-emitting diode (LED) ball bulb lamp. The all-light-distribution optical system comprises a plurality of LED chips, a light-reflecting cover in a trumpet shape and a substrate. The all-light-distribution optical system is characterized in that the substrate and the light-reflecting cover share the same symmetry axis and the bottom of the light-reflecting cover is connected with the surface of the substrate. The light-reflecting cover is opened from the surface of the substrate and stretches upwards along the symmetry axis to the top portion of the light-reflecting cover in a trumpet-shaped mode. The plurality of LED chips are symmetrically arranged on the surface of the substrate relative to the symmetry axis. A part of the plurality of LED chips are located outside the light-reflecting cover and arranged evenly in an annular shape, the other part of the plurality of LED chips are located inside the light-reflecting cover. Due to the shape and the position of the light-reflecting cover and the arrangement mode of the plurality of LED chips, a part of the light rays emitted by the LED chips shine upwards directly and the other part of the light rays emitted by the LED chips are shot towards other directions through the reflection of the light-reflecting cover, so that light shining angles are increased, the LED ball bulb lamp of the all-light-distribution optical system can achieve the all-light-distribution light distribution effect with ease and cost for achieving the all-light-distribution optical system is also low.
Description
Technical field
The present invention relates to a kind of optical system of the LED of being applied to bulb lamp, relate in particular to a kind of full luminous intensity distribution optical system for the LED bulb lamp.
Background technology
At present, traditional incandescent bulb lamp power consumption is high, and the life-span is short, is gradually substituted by electronic energy-saving lamp, although electronic energy-saving lamp has improved energy-saving effect, but due to the heavy metal element that has used many contaminated environment, is unfavorable for environmental protection.Along with the high speed development of LED technology, the LED bulb lamp becomes the novel green light source that substitutes conventional incandescent bulb and electronic energy-saving lamp gradually.
The LED bulb lamp generally is divided into half luminous intensity distribution type by the curve of light distribution, accurate luminous intensity distribution type and full luminous intensity distribution type.Because the lighting angle of the LED bulb lamp of half luminous intensity distribution type and accurate luminous intensity distribution type is less, so everybody more is devoted to study the larger full luminous intensity distribution type LED bulb lamp of lighting angle.
Now, full luminous intensity distribution type LED bulb lamp generally reaches the effect of full luminous intensity distribution in order to increase lighting angle by following mode:
1 remote fluorescence powder technology: fluorescent material technology commonly used is that fluorescent material is spatially separated with LED chip, and fluorescent material is coated on blooming, Transparent lamp shade or lens lamp optical module away from LED chip.And remote fluorescence powder technology refers to the fluorescent material of Wavelength-converting and blue-ray LED separate configuration as light source.Shine after light mixing from a plurality of blue-ray LEDs and just produce white light on fluorescent material.The light that blue-ray LED sends converts white light to through fluorescent material, and in the uniform radiation of all directions, can obtain uniform full angle luminescent ball bubble.Remote fluorescence powder technological revolution ground is broken through and has been surmounted and has the white-light LED encapsulation technique of generally using now, the light efficiency ratio of the bulb lamp of employing remote fluorescence powder technology improves 20% with the light efficiency of the white-light LED bulb of power, but use this technology, implement more complicated, and cost is also very high;
2 mechanism design: by rational mechanism design, LED chip is evenly distributed on the different directions of bulb lamp, a plurality of LED chips are simultaneously luminous to satisfy the luminous requirement of full angle on all directions.But this mode exist the design and the production complexity high, the high in cost of production shortcoming.
COB or common white light LEDs are adopted in 3 optical designs, coordinate custom-designed full angle lens, can design the luminous bulb lamp of full angle.But because the lighting angle of LED is generally less than 120 °, and design the cost that full angle alight tool need to strengthen the complexity of design and improve light fixture.
Therefore, those skilled in the art is devoted to develop a kind of full luminous intensity distribution optical system of LED bulb lamp, utilizes the LED bulb lamp of the full luminous intensity distribution of realization that this optical system can be convenient and simple.
Summary of the invention
Because the defects of prior art, technical problem to be solved by this invention is to provide a kind of full luminous intensity distribution optical system for the LED bulb lamp, the effect that reaches full luminous intensity distribution by arrangement mode and reflection shield to LED chip.
For achieving the above object, the invention provides a kind of full luminous intensity distribution optical system for the LED bulb lamp, comprise a plurality of chips, reflection shield and substrate, it is characterized in that,
Described reflection shield flare, its bottom has bottom opening, and described bottom opening is fixed on the surface of described substrate, and described reflection shield and described substrate be the LED symmetry axis altogether; The top of described reflection shield has open top, and described open top is greater than described bottom opening; At described top open part, described reflection shield has the part perpendicular to described symmetry axis;
Described a plurality of LED chip is arranged in the surface of described substrate symmetrically with respect to described symmetry axis, it is outside that a part in described a plurality of LED chip is positioned at described reflection shield, become annular evenly distributed, it is inner that the another part in described a plurality of LED chips is positioned at described reflection shield.
Further, described reflection shield is to adopt light reflecting material to make; The part perpendicular to described symmetry axis of described reflection shield has stopped the light that described a plurality of LED chips of being positioned at described reflection shield outside send, and described light is reflected on the surface perpendicular to the part of described symmetry axis of described reflector.
Further, described substrate is cylinder, comprises line layer, insulating barrier and aluminium lamination.
Further, described LED chip adopts square LED chip.
Further, use the full light-distribution LED bulb lamp of described full luminous intensity distribution optical system for the LED bulb lamp, comprise described a plurality of LED chip, described reflection shield, described substrate, globe holder, heat dissipation base, Lamp cup, lamp holder and connecting piece of lamp cap, it is characterized in that
Described reflection shield, described substrate, described heat dissipation base, described Lamp cup and described globe holder be described symmetry axis altogether;
Described reflection shield flare, its bottom has bottom opening, and described bottom opening is fixed on the surface of described substrate; The top of described reflection shield has open top, and described open top is greater than described bottom opening; At described top open part, described reflection shield has the part perpendicular to described symmetry axis;
Described a plurality of LED chip is arranged in the surface of described substrate symmetrically with respect to described symmetry axis, it is outside that a part in described a plurality of LED chip is positioned at described reflection shield, become annular evenly distributed, it is inner that the another part in described a plurality of LED chips is positioned at described reflection shield;
Described heat dissipation base one end is connected with the bottom of described substrate, the other end is connected with described Lamp cup, described connecting piece of lamp cap respectively with described lamp holder be connected Lamp cup and be connected, described Lamp cup is the cylinder of hollow, described connecting piece of lamp cap is positioned at the hollow space of described Lamp cup.
Further, described reflection shield is to adopt light reflecting material to make; The part perpendicular to described symmetry axis of described reflection shield has stopped the light that described a plurality of LED chips of being positioned at described reflection shield outside send, and makes described light reflex occur in the part perpendicular to described symmetry axis of described reflector.
Further, described substrate is cylinder, comprising: line layer, insulating barrier and aluminium lamination.
Further, described heat dissipation base adopts insulating materials to make, and described Lamp cup adopts heat-conducting plastic to make.
Further, described globe holder is fixed in the surface of described Lamp cup, and described globe holder adopts light diffusion PC material to make.
Further, described LED chip adopts square LED chip.
In a preferred embodiment of the present invention, a kind of full luminous intensity distribution optical system for the LED bulb lamp is provided, it comprises substrate, a plurality of LED chip and reflection shield.Reflection shield and substrate are common symmetry axis.The reflection shield flare is fixed on substrate surface.LED chip with respect to the symmetry axis symmetric arrays at substrate surface: a part of LED chip is positioned at the reflection shield outside, and is evenly distributed with the shape of annulus, and a part of LED chip is positioned at reflection shield inside.
In addition, the full light-distribution LED bulb lamp of the full luminous intensity distribution optical system of having used LED bulb lamp of the present invention also is provided in a preferred embodiment of the present invention, it comprises substrate, a plurality of LED chips, reflection shield, globe holder, heat dissipation base, Lamp cup, connecting piece of lamp cap and lamp holder.Reflection shield and substrate are common symmetry axis.The reflection shield flare is fixed on substrate surface.LED chip with respect to the symmetry axis symmetric arrays at substrate surface: a part of LED chip is positioned at the reflection shield outside, and is evenly distributed with the shape of annulus, and a part of LED chip is positioned at reflection shield inside.The bottom of substrate by screw together with heat dissipation base and Lamp cup are tightened on, one end of connecting piece of lamp cap is connected with lamp holder, and the other end is connected with Lamp cup, and Lamp cup is the cylinder of hollow, connecting piece of lamp cap is positioned at the hollow space of Lamp cup, and globe holder is fixed in the surface of Lamp cup.
used LED bulb lamp of the present invention full luminous intensity distribution optical system full light-distribution LED bulb lamp in use, a plurality of LED chips are as the light emitting source of this bulb lamp, a plurality of LED chips of a plurality of LED chips of reflection shield inside and reflection shield outside are all upwards luminous, but be positioned at the top of annulus part LED chip due to the part of reflection shield, the light part that a plurality of LED chips of reflection shield outside send up, in addition the light that sends of a part the part of the reflector by the side of being located thereon light reflection is sent towards other directions, the lighting angle of this bulb lamp is just greater than 240 ° like this, realized full luminous intensity distribution.
This shows, the full luminous intensity distribution optical system for the LED bulb lamp of the present invention as light emitting source, utilize the arrangement to LED chip, and flaring reflector reaches the technique effect of full luminous intensity distribution to the reflection of light source by LED chip.Utilize optical system of the present invention, can make like a cork the LED bulb lamp of full luminous intensity distribution, and with respect to prior art, its light distribution effect is better, can satisfy the light distribution requirements of CQC standard; The full light-distribution LED bulb lamp cost that uses this system to make is also more cheap.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand fully purpose of the present invention, feature and effect.
Description of drawings
Fig. 1 is the profile of a full light-distribution LED bulb lamp of the present invention;
Fig. 2 is the schematic cross-section at substrate place of the preferred embodiment of a full luminous intensity distribution optical system that is used for the LED bulb lamp of the present invention;
Fig. 3 is a light distribution effect figure for the preferred embodiment of the full luminous intensity distribution optical system of LED bulb lamp of the present invention.
The specific embodiment
The specific embodiment of the full luminous intensity distribution optical system for the LED bulb lamp of the present invention is described below in conjunction with accompanying drawing.
Full luminous intensity distribution optical system for the LED bulb lamp of the present invention comprises substrate 4, a plurality of LED chip 3 and reflection shield 2 as shown in Figure 1.
A plurality of LED chips 3 and reflection shield 2 all are fixed in substrate 4 surfaces.
3 minutes two parts of a plurality of LED chips are welded on the surface of substrate 4, and a part is positioned at the outside of reflection shield 2, with circular arrangement; A part is positioned at the inside of reflection shield 2.
The top view of the full luminous intensity distribution optical system of LED bulb lamp of the present embodiment as shown in Figure 2, the general light reflecting material that adopts of reflection shield 2 is made, what the present embodiment used is mirror face aluminum material, the bottom of reflection shield 2 is annulus, annulus is take the center on substrate 4 surfaces as the center of circle, and the diameter of annulus maximum is 14mm; Also on symmetry axis, the diameter of maximum is 38mm in the center of circle at reflection shield 2 tops.
LED chip 3 adopts square LED chip, the present embodiment has used 10 LED5630, its with respect to symmetry axis 7 symmetric arrays on substrate 4 surfaces, the part of a plurality of LED chips 3 (the present embodiment is 8 LED5630) is positioned at the outside of reflection shield 2, evenly distributed with annular, this annulus is take the center on the surface of substrate 4 as the center of circle, and circle diameter is 24mm; Another part of a plurality of LED chips 3 (the present embodiment is 2 LED5630) is positioned at the inside of reflection shield 2, and its distance to the bottom margin of reflection shield 2 is 4.662mm.
Use the full light-distribution LED bulb lamp of the full luminous intensity distribution optical system for the LED bulb lamp of the present invention, comprised LED chip 3, substrate 4, reflector 2, globe holder 1, lamp holder 6, Lamp cup 8, connecting piece of lamp cap 9 and heat dissipation base 5.Its section of structure as shown in Figure 1.
A plurality of LED chips 3 and reflection shield 2 all are fixed in substrate 4 surfaces.
3 minutes two parts of a plurality of LED chips are arranged in the surface of substrate 4, and a part is positioned at the outside of reflection shield 2, with circular arrangement; A part is positioned at the inside of reflection shield 2.
The bottom of substrate 4 by screw together with heat dissipation base 5 and Lamp cup 8 are tightened on.Connecting piece of lamp cap 9 is plastic devices of a hollow, and driving power is placed in one in cavity body; One end of connecting piece of lamp cap 9 is connected with lamp holder 6, and the other end is connected connection with Lamp cup.Lamp cup 8 is cylinders of hollow, and connecting piece of lamp cap 9 is positioned at its hollow space.Globe holder 1 uses beats the surface that glue is fixed on Lamp cup 8.
The connecting piece of lamp cap 9 of the full light-distribution LED bulb lamp of the present embodiment adopts plastic productions, major function be fixedly protection power source be connected lamp holder 6; Heat dissipation base 5 adopts insulating materials to make, and has played the effect of isolation drive power supply and heat radiation; Lamp cup 8 is made by heat-conducting plastic, and it has taken into account the effect of insulation and heat radiation; A plurality of LED chips 3 adopt square LED chip, and that the present embodiment uses is LED5630; The general light reflecting material that adopts of reflection shield 2 is made, and what the present embodiment used is mirror face aluminum material; Globe holder 1 adopts diffusion PC material.
The LED5630 of the present embodiment is light emitting source, the LED5630 of the LED5630 of reflection shield 2 inside and reflection shield 2 outsides is all upwards luminous, but position and shape due to specular aluminium reflection shield 2, the light part that the LED5630 of reflection shield 2 outsides sends is directly upwards sent, in addition a part the part of the reflector by the side of being located thereon with light reflection towards other directions, the lighting angle of this optical system is just greater than 240 ° like this, and the effect of its luminous intensity distribution as shown in Figure 3.
According to the full photometric standards of CQC, measure light intensity at 0 °, 45 °, 90 ° and 135 ° of four vertical planes, the light of full Light Distribution Led Light distribute require be: 1. the light intensity in 0 ° to 135 ° zone therewith the average intensity deviation in the zone be no more than 20%; 2.135 the luminous flux ° in 180 ° of zones is not less than 5% of total light flux.The light distribution effect of the full light-distribution LED bulb lamp of the present embodiment is as shown in Figure 3: fine rule represents 0 ° of measurement light intensity on the plane, dotted line represents 45 ° of measurement light intensity on the plane, thick line represents 90 ° of measurement light intensity on the plane, and chain-dotted line represents 135 ° of measurement light intensity on the plane.As shown in Figure 3, the average intensity of the present embodiment is 31, in 0 ° to 135 ° zone, minimum light intensity is 25, with the deviation of average intensity be (31-25) ÷ 31=0.19355＜20%, the highest light intensity is 37, with the deviation of average intensity be (37-31) ÷ 31=0.19355＜20%; And the luminous flux of the full light-distribution LED bulb lamp of the present embodiment in 135 ° to 180 ° zones is not less than 5% of total light flux.So the full light-distribution LED bulb lamp of the present embodiment satisfies the light distribution requirements of the full Light Distribution Led Light of CQC standard.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a full luminous intensity distribution optical system that is used for the LED bulb lamp, comprise a plurality of LED chips, reflection shield and substrate, it is characterized in that,
Described reflection shield flare, its bottom has bottom opening, and described bottom opening is fixed on the surface of described substrate, and described reflection shield and described substrate be symmetry axis altogether; The top of described reflection shield has open top, and described open top is greater than described bottom opening; At described top open part, described reflection shield has the part perpendicular to described symmetry axis;
Described a plurality of LED chip is arranged in the surface of described substrate symmetrically with respect to described symmetry axis, it is outside that a part in described a plurality of LED chip is positioned at described reflection shield, become annular evenly distributed, it is inner that the another part in described a plurality of LED chips is positioned at described reflection shield.
2. the full luminous intensity distribution optical system for the LED bulb lamp as claimed in claim 1, wherein said reflection shield are to adopt light reflecting material to make; The part perpendicular to described symmetry axis of described reflection shield has stopped the light that described a plurality of LED chips of being positioned at described reflection shield outside send, and described light is reflected on the surface perpendicular to the part of described symmetry axis of described reflector.
3. the full luminous intensity distribution optical system for the LED bulb lamp as claimed in claim 1, wherein said substrate is cylinder, comprises line layer, insulating barrier and aluminium lamination.
4. the full luminous intensity distribution optical system for the LED bulb lamp as claimed in claim 1, wherein said LED chip adopts square LED chip.
5. full light-distribution LED bulb lamp, use the full luminous intensity distribution optical system for the LED bulb lamp as claimed in claim 1, comprise described a plurality of LED chip, described reflection shield, described substrate, globe holder, heat dissipation base, Lamp cup, lamp holder and connecting piece of lamp cap, it is characterized in that
Described reflection shield, described substrate, described heat dissipation base, described Lamp cup and described globe holder be described symmetry axis altogether;
Described reflection shield flare, its bottom has bottom opening, and described bottom opening is fixed on the surface of described substrate; The top of described reflection shield has open top, and described open top is greater than described bottom opening; At described top open part, described reflection shield has the part perpendicular to described symmetry axis;
Described a plurality of LED chip is arranged in the surface of described substrate symmetrically with respect to described symmetry axis, it is outside that a part in described a plurality of LED chip is positioned at described reflection shield, become annular evenly distributed, it is inner that the another part in described a plurality of LED chips is positioned at described reflection shield;
Described heat dissipation base one end is connected with the bottom of described substrate, the other end is connected with described Lamp cup, described connecting piece of lamp cap respectively with described lamp holder be connected Lamp cup and be connected, described Lamp cup is the cylinder of hollow, described connecting piece of lamp cap is positioned at the hollow space of described Lamp cup.
6. a kind of full light-distribution LED bulb lamp as claimed in claim 5, wherein said reflection shield are to adopt light reflecting material to make; The part perpendicular to described symmetry axis of described reflection shield has stopped the light that described a plurality of LED chips of being positioned at described reflection shield outside send, and makes described light reflex occur in the part perpendicular to described symmetry axis of described reflector.
7. a kind of full light-distribution LED bulb lamp as claimed in claim 5, wherein said substrate is cylinder, comprising: line layer, insulating barrier and aluminium lamination.
8. a kind of full light-distribution LED bulb lamp as claimed in claim 5, wherein said heat dissipation base adopt insulating materials to make, and described Lamp cup adopts heat-conducting plastic to make.
9. a kind of full light-distribution LED bulb lamp as claimed in claim 5, wherein said globe holder is fixed in the surface of described Lamp cup, and described globe holder adopts light diffusion PC material to make.
10. a kind of full light-distribution LED bulb lamp as claimed in claim 5, wherein said LED chip adopts square LED chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100517846A CN103175093A (en) | 2013-02-17 | 2013-02-17 | All-light-distribution optical system used for light-emitting diode (LED) ball bulb lamp |
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| CN2013100517846A CN103175093A (en) | 2013-02-17 | 2013-02-17 | All-light-distribution optical system used for light-emitting diode (LED) ball bulb lamp |
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Cited By (3)
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| WO2014206360A1 (en) * | 2013-06-28 | 2014-12-31 | 宁波福泰电器有限公司 | Wide angle luminous led light bulb |
| WO2015135327A1 (en) * | 2014-03-12 | 2015-09-17 | 厦门萤火虫节能科技有限公司 | Full-direction illuminating standardized led bulb lamp |
| 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 |
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| CN202253014U (en) * | 2011-06-08 | 2012-05-30 | 威力盟电子股份有限公司 | Multi-angle light-emitting structure and bulb lamp structure thereof |
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| US20110215345A1 (en) * | 2010-03-03 | 2011-09-08 | Cree, Inc. | Solid state lamp with thermal spreading elements and light directing optics |
| CN201795315U (en) * | 2010-04-15 | 2011-04-13 | 北京朗波尔光电股份有限公司 | Spatial omnidirectional luminous LED |
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| 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 |
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Application publication date: 20130626 |