The LED ball shape lamp that a kind of primary colours are adjustable
The present invention relates to LED illumination lamp technical field.
People utilize light source to be from flame, incandescent lamp, the fluorescent lamp of gas luminescence, current electricity-saving lamp is also by gas luminescence, it is that the form of AC rectification direct current pressure elevated currents is given me a little the inert gas of lighting a lamp in pipe nothing more than, the conversion of its light emitting color primaries is that the gas by adding heterogeneity changes luminous primary colours, although it is than fluorescent lamp and incandescent lamp economize on electricity, but it does not possess yet can adapt to power conservation requirement under outstanding occasion (because switch also can make electricity-saving lamp lose energy-conservation object frequently from vehement lamp, switch also very easily causes the damage of electricity-saving lamp frequently).Current people start and utilize LED as our energy-conservation light source, the structure of LED and principle of luminosity before 50 years people understood the ABC that semi-conducting material can produce light, commercial diode results from nineteen sixty.LED is the abbreviation of English light emitting diode (light emitting diode); its basic structure is one block of electroluminescent semi-conducting material; be placed on a leaded shelf; then surrounding epoxy sealing; play the effect of protection internal core, so the anti-seismic performance of LED is good.Well-known LED light source very energy-conservation, it is than from vehement streetlamp energy-saving 80%, than daylight lamp energy-saving 50%, the illumination that current led is really applied in the middle of our daily life is little, major part led is applied to exterior decoration illumination, and the wall body decoration illumination of the flash illumination of such as acrylic word and high building alien invasion and Landscape Lighting are as rainbow tube etc.Mention urban decoration and throw light on that we just associate neon light very naturally, the light that traditional neon light sends very bright soft (light of different colours is that inert gases different in fluorescent tube determines) is felt more really to people one, but although the light that current led rosehead sends is colourful, but give the sensation of a kind of illusion of people, with regard to by high building alien invasion ted ornament lamp, the only dazzle that what night, we saw send, although rainbow tube be the light sent we it is seen that the light that has several to send, to the sensation of people's dim eyesight, reason is that led is evenly luminous unlike traditional neon light, the generation of dazzle is that spot light is irradiated to face shield and the light reflected by led, due to the spot light be made up of numerous different colours in led rainbow tube, the illumination that they send is mapped on face shield because face shield adopts circular shape mostly, although face shield have employed semi-transparent material, because luminous point does not have the cambered surface that the uniform effect of diffused light adds face shield formation close to face shield distance, so reflect only towards different directions, someone devises anti-glare LED lamp for this reason, can with reference to Chinese patent literature CN102330898A.
We mention LED street lamp again, and current LED street lamp major part adopts high-power LED luminous tube, and a difficult problem maximum at present solves led heat radiation, has advanced temperature control current etc.Mention street lamp we to know that traditional street lamp sends only amber, we know that the primary colours (color) of not sharing the same light are for penetrating such as mist, rain, snow is different, from light (ted sends cold light source) although irradiate road surface the night of fine day to feel very bright, but the ability of the primary colours penetrating fog of the light that it sends but is very poor, come to city night lighting so the street lighting in city now still adopts mostly just as amber high-pressure mercury lamp, because the illumination of the most applicable avenue of primary colours under season and various weather of the light that high-pressure mercury lamp sends, so people just always so far using high-pressure mercury lamp as city street lighting at night.Chip due to different led determines the primary colours of sent light, has developed redness, blueness, green, white etc. at present.We know that colour television set is the motley color adjusting out by red, blue, green, three kinds of colors, if but directly the LED of these three kinds of primary colours is lined up, direct adjustment is as the illumination in city, like that just as we mentioned earlier, so just probably make driver, pedestrian is dazzled, so very easily traffic accident occurs, and is difficult at present solve the primary lighting colours required for city.
Summary of the invention
The invention provides the LED ball shape lamp that a kind of primary colours are adjustable, solve the problem that dazzle appears in multi-primary LED lamp, the light fixture that a kind of light is softer is provided.
The present invention solves the technical scheme that its technical problem takes: the LED ball shape lamp that a kind of primary colours are adjustable, comprise metallic lamp holder, radiating fin and globe holder, described metallic lamp holder is directly connected with globe holder, and at the arranged outside radiating fin of described metallic lamp holder, LED lamp bead and circuit board is provided with in metallic lamp holder, it is characterized in that, described LED lamp bead at least comprises red, green, blue three monomer lamp pearls, in described metallic lamp holder, the front of LED lamp bead arranges a collector lens, described collector lens comprises conus portion and hemisphere portion, and described conus portion and hemisphere portion are respectively towards LED lamp bead and globe holder, the near focal point of the hemisphere portion in described globe holder is also provided with a translucent diffuser.
Described LED lamp bead is arranged on an aluminium base, is provided with a slot in described metallic lamp holder, and described aluminium base inserts in the slot of metallic lamp holder from side, and between aluminium base and slot, be provided with touching joint LED lamp bead and circuit board being carried out being electrically connected.
Described globe holder is moulding or the glassware that inner surface has roughened structure.
Be coated with fluorescent material in described globe holder and assist the fluorescent tube increasing brightness.
Be provided with a cylindric passage in metallic lamp holder between described LED lamp bead and collector lens, and be minute surface at the inner surface of described passage.
Described collector lens is glassware or the acrylic goods of transparent material.
Described translucent diffuser is a ball, and ball is positioned at the focus position of collector lens.
Described translucent diffuser is a semi-round ball, and the arcwall face of described semi-round ball is towards LED lamp bead, and semi-round ball is positioned at the focus position of collector lens.
Described translucent diffuser is a torus, and torus is positioned at upside or the downside of the focus of collector lens.
The structure of the present invention's design, makes globe lamp have following effect:
First the LED lamp bead of three kinds of primary colours focuses on through collector lens, the object of first preliminary mixing, form more single mixing light, and then through translucent diffuser generation scattering phenomenon, the light of mixed chromatogram can be formed, make effect lampshade being formed single look, and light is very soft.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of invention;
Fig. 2 is the stereogram of collector lens;
Fig. 3 is the translucent diffuser stereogram of spheroidal;
Fig. 4 is toric translucent diffuser stereogram;
Fig. 5 is the stereogram of hemispheric translucent diffuser:
Fig. 6 is the schematic diagram of embodiment two;
Detailed description of the invention
As Fig. 1 to Fig. 3, the LED ball shape lamp that a kind of primary colours are adjustable, comprises metallic lamp holder 1, radiating fin 2 and globe holder 3.
Metallic lamp holder 1 is prior art, and top is the position be connected in lamp socket, is provided with the cavity of mounting circuit boards and the matrix of mounted LED lamp bulb 4 in metallic lamp holder inside.Metallic lamp holder 1 lower end is directly connected with globe holder, and can clamp also can be bonding, and at the arranged outside radiating fin 2 of metallic lamp holder, can be derived by the heat that LED lamp bead produces timely.
The LED lamp bead 4 be wherein arranged in metallic lamp holder comprises red, green, blue many groups monomer lamp pearl, can carry out light modulation like this, also can be many groups according to the principle of three primary colours.In metallic lamp holder, the front of LED lamp bead arranges a collector lens, a cylindric passage 5 is provided with in metallic lamp holder between LED lamp bead and collector lens, and form minute surface at the inner surface plated film of passage, such light can all focus on collector lens 6, all light can effectively be mixed through collector lens, forms single luminous point.Like this, the change of seven kinds of colors just can be realized by red-green-blue colour mixture.
Collector lens 6 is a glassware (resistant to elevated temperatures acrylic goods also can be adopted to substitute), collector lens comprises conus portion 61 and hemisphere portion 62, as shown in the figure, and conus portion 61 and hemisphere portion are respectively towards LED lamp bead 4 and globe holder 3, the focus position of the hemisphere portion in globe holder is also provided with a translucent diffuser 7, this translucent diffuser is a crystal ball, as shown in Figure 3, translucent diffuser 7 is arranged on metallic lamp holder or on globe holder by support 71, in order to not impact effect, support adopts transparent acrylic manufacture, light is through translucent diffuser, will scattering phenomenon be there is in light.Such LED light line is formed and compares pure color rhythm effect after the preliminary focusing of collector lens and light mixing, then after the scattering of translucent diffuser 7, form softer uniform effect, and from the outside of globe holder, the source of light is in translucent diffuser.
During as indoor lamp or lampion, globe holder 3 has moulding or the glassware of roughened structure for inner surface, provides softer lighting effect.
This structure also can be used for the design of street lamp.
As shown in Figure 4, Figure 5, translucent diffuser 7 also can make semi-round ball or torus, can reach the object of scattering equally, and torus wherein when mounted, is arranged on upside or the downside of intersection focus, light can be dropped on torus just.
Be with embodiment one difference, in Fig. 6, LED lamp bead is arranged on an aluminium base 8, form a module, a slot is provided with in metallic lamp holder, described aluminium base 8 inserts in the slot of metallic lamp holder from side, and between aluminium base and slot, be provided with touching joint LED lamp bead and circuit board being carried out being electrically connected.So, after lamp pearl has been gone bad, extracted by side and can carry out changing and maintenance work.Because agent structure is intact, change the light fixture after lamp pearl and also from new use, thus the use cost of user can be reduced.