CN204629122U - Portable seven color LED lamp - Google Patents

Abstract

Portable seven color LED lamp, it is the LED lamp belonging to sight, can carry with, can present different colors, and the pure color presented, even, soft, and applicable human eye is is closely viewed and admired.It forms shell by base and milky translucent lampshade, the inside device has each circuit unit and battery-powered, LED in circuit includes redness, green, blueness and white LED, they are luminous colour mixture under the control of integrated circuit, the light that LED sends is irradiated to lampshade, lampshade presents corresponding color and views and admires for people.Main application of the present utility model is placed in indoor to view and admire for people, also can carry with and enjoy for people anywhere, thus bring fine impression.

Description

Portable seven color LED lamp

Technical field

The utility model relates to a kind of LED lamp of sight, is especially applicable to the LED lamp that human eye is is closely viewed and admired.

Background technology

Along with the development of LED industry, the known LED lamp of current people mainly contains LED illumination lamp and LED landscape lamp tool, but these LED lamp are all not suitable for human eye closely views and admires, and reason is as follows:

LED landscape lamp tool is mainly used in the distant view decoration of building, and view and admire a long way off for people, such as LED guardrail tube, LED wall wash lamp, LED point light source etc., these light fixtures are generally only suitable for viewing and admiring at a distance, are but not suitable for people and closely view and admire.Such as people are soft to see LED wall wash lamp luminescence a long way off only, but see that it will feel dazzling nearby if stood in; For another example people see that some LED point light source can present uniform color a long way off, but if stand in see on hand color that it will find it very uneven being difficult to seen.Namely this fact is turned around---LED landscape lamp tool does not originally need luminous even, soft, because after being installed to above building, even if these originally it seems that the light fixture that the even luminescence of obvious luminance nonuniformity is not soft, people seem that they also can seem luminous even, soft a long way off on hand.And LED landscape lamp tool is all generally by mains-supplied, can not depart from network operation, so cannot carry with, this can not meet people's application requirement of viewing and admiring next to the skin.

The major function of LED illumination lamp is illumination, therefore luminosity is larger, such as LEDbulb lamp, LED daylight lamp, LED flashlight, LED street lamp etc., if human eye is directly watched attentively facing to these light fixtures will feel dazzling, can produce and make us uncomfortable dazzle, therefore be not suitable for human eye and directly view and admire, and LED illumination lamp is generally monochromatic, freely can not present different colours, even if luminescence is not dazzling, its ornamental value is not high yet.

Also have some miniature LED toy lamps also can present different colours in prior art, but these LED toy lamp structures are too simple and crude, a few color can only be presented, and the uneven color presented, the color presented is impure, so ornamental value is little, the current main application of these LED toy lamps is only in order to meet the curiosity of children, and the requirement of viewing and admiring of the higher standard of adult cannot be met, because when closely viewing and admiring, particularly light fixture is held in both hands when carefully watching on hand, also in so many words can be watched with the tail of one's eye by people even if the color that light fixture presents exists very trickle flaw (such as colour brightness is uneven or tone is uneven), thus hinder the experience sense of viewing and admiring of people to be subject to.

Said " closely viewing and admiring " is also called " next to the skin view and admire " herein, refer to light fixture be placed in indoor view and admire for people or light fixture held in both hands viewing and admiring on hand, this kind of light fixture General Requirements can be carried with.LED is next to the skin, and to view and admire technical field be different from the new LED applied technical field of existing LED illumination technology and LED landscape technique one.Current LED industry is quite ripe in the development in technical field of LED illumination and LED landscape technique field, but also there is blank in LED technical field of viewing and admiring next to the skin, and this is the technology trends that LED industry is following new.

Utility model content

Technical problem to be solved in the utility model, the LED lamp that a kind of applicable human eye will be provided exactly closely to view and admire, can carry with, and can present different colors, and the pure color presented, even, soft.This is also technical problem representative in LED technical field of viewing and admiring next to the skin, explains the concrete meaning of wherein included main points at this further:

Different colours can be presented, refer to light fixture there is any one mode in following two kinds of manifestation modes or have two kinds of modes concurrently: first kind of way is that light fixture can present a certain color and nondiscolouring constantly, but people manually can operate control light fixture switches the color category presented, such as when people wants to appreciate red time, just the button can pressed on light fixture presents redness constantly by light fixture, is switched to yellow when people wants can to control again light fixture when appreciating yellow; The second way is the light fixture energy automatic color-changing when not needing people's Non-follow control, namely light fixture automatically presents different colors in turn, but people manually can operate and control the concrete pattern that light fixture switches variable color, such as can control light fixture with the variable color in turn of the pattern of gradual change, also can control light fixture with the variable color in turn of the pattern of saltus step;

The color " soft " presented refers to light fixture can not allow people feel that light is dazzling in the state lighted;

The color " evenly " presented refers to and is evenly distributed at the hue and luminance of lamp surface each several part, if at a time lamp surface some places present yellow, some places present green, some places present redness, so just tone skewness is described, for another example light fixture at a time has shade or speck in some place, so just illustrates that brightness light and shade is irregular;

The color " pure " presented refers in color does not carry that other is variegated secretly, when such as presenting white, should not be in and to mix redness among white or mix colors such as there being cyan.

The utility model solves the technical scheme that its technical problem adopts: the shell being made up of light fixture lampshade and base, the inside device has each circuit unit comprising LED, lampshade adopts milky translucent lampshade, inside light fixture, returning apparatus has battery and each electric routing battery is powered, LED in circuit includes redness, green, blueness and white LED, they are luminous colour mixture under the control of integrated circuit, and the light that LED sends is irradiated to lampshade.The several technical measures further illustrated below in technical solutions of the utility model are how technical solution problems, and provide some preferred versions specifically implemented.

Light fixture of the present utility model is battery-powered, therefore light fixture can be carried with, can normally work when departing from electrical network, namely light fixture can be let people and be carried with or still can normally work being carried with light fixture in footloose situation by people under the state of normal work.The utility model is when concrete enforcement, battery inside light fixture preferably uses rechargeable battery, because can also charge when its electricity exhausts, after charging, battery can continue as light fixture and powers, Reusability like this, so frequently need not change battery, this is also more convenient concerning using user.Comparing those disposable batteries does not have electricity to be just abandoned and contaminated environment, adopts rechargeable battery can reduce old and useless battery rubbish, therefore more environmental protection.

Milky translucent lampshade is in order to present shades of colour and to allow luminescence become soft.When milky translucent lampshade is irradiated by the light of certain color time, it will present corresponding color, such as when have red light irradiation it time it just presents redness, in time having green glow to irradiate it, it presents green, when have white light it time it become again white, etc.People will be allowed to feel dazzling if the light that LED sends shines directly into human eye, if light is irradiated to lampshade inside milky translucent lampshade, people watches the color that lampshade presents outside lampshade, people so would not be allowed again to feel dazzling, and namely milky translucent lampshade can allow light become softer.

When light is irradiated to lampshade time, transmitted light flux is just called " light transmittance " with the ratio of incident flux.It is emphasized that so-called " translucent " is not only the light transmittance of 50% herein, but all states that light transmittance (comprises 50% but do not comprise 0% and 100%) between 0% and 100%.That is, light transmittance be 100% lampshade be transparent, light transmittance be 0% lampshade be opaque, and between transparent and opaque between lampshade just all belong to translucent lampshade, such as light transmittance be 10%, 50% or 70% lampshade be all translucent lampshade.In concrete enforcement, we generally adopt light transmittance to be greater than the translucent lampshade of 70% for the production of light fixture described in the utility model, but also may adopt the lampshade that light transmittance is lower in some more special occasion.The manufacture method of current milky translucent lampshade has many kinds, and such as, reflective pigment particle or interpolation light diffusion particle by adding white in the lampshade of otherwise transparent can obtain milky translucent lampshade.In a word, every translucent lampshade showing milky appearance under normal conditions, can be used as lampshade of the present utility model, to reach the effect presenting respective color and allow light become soft under various coloured light irradiates.

The utility model is when concrete enforcement, and the face shaping of lampshade can select animal-shaped, plant shaping, architectural modeling, casper, character moulding or just simple geometric modeling.The face shaping of such as lampshade can be the moulding of a TWO, time LED inside light fixture sends ruddiness, TWO just becomes red, when LED sends green glow time, it becomes again green rabbit, allows again people see a blue rabbit when LED sends blue light time; For another example the profile of lampshade also can be the moulding of a peony or the moulding of an imperial palace or one is worn the moulding of one-piece little girl or the solid geometry moulding of a regular dodecahedron etc.The preferred version of shell moulding of the present utility model is: lampshade preferably uses the lampshade of spheroidal, and base preferably uses the base of truncated cone-shaped, and reason is as follows:

1. the lampshade of other moulding has the place of corner angle unavoidably, the rabbit ear of such as TWO moulding lampshade piece and rabbit tail position, the light illumination that these corner location on lampshade obtain is more less than other position on lampshade, look that these corner location will seem darker outside, thus formation local shades, the irregular flaw of this light and shade can hinder that people's view and admire impression.By contrast, because the cover surface of spheroidal is all the uniform curved surface of radian, there is not the position in relative corner, so the uniform light that inside being conducive to most, LED sends is distributed to whole lampshade;

2. select the base of truncated cone-shaped to match to spheroidal lampshade, not only be conducive to whole light fixture and be placed in desktop steadyly, and making the profile of whole light fixture all become one relative to center upright line rotary body axisymmetricly, the moulded of this rotary body visually can bring finer impression to people;

3. because traditional crystal ball be all generally natural translucent stone or glass processing are become ball shape after be placed on the submounts of truncated cone-shaped, just make the external form of whole light fixture become external form the spitting image of being a crystal ball so spheroidal lampshade of the present utility model combines with truncated cone-shaped base.As everyone knows, the spherical of crystal ball inherently represents the implied meaning of one " satisfactorily ", and " satisfactorily " be all religions, spirit repaiies, the ultimate aim of science, philosophy and life pursuit, roundly fullly also signify safety, harmless implied meaning, some people also likes and claims crystal ball to be " have and ask (partials of " ball " word) to answer ", current many people think that crystal ball can bring good luck to people, think put at home crystal ball can town residence, avoid evil spirits, amass great fortunes, pray for blessings, wealth bringing in block removing, increase wisdom, edge of helping others.In a word, crystal ball is the things generally liked at present, just natural water geode is expensive, civilian other cannot afford, so in this case, the utility model, as a kind of LED lamp of viewing and admiring next to the skin, is made shell moulding the moulding of crystal ball, certainly can be obtained liking of more people.

The sphere diameter size of traditional crystal ball is not quite similar, if shell of the present utility model selects the appearance and modeling of crystal ball, so the sphere diameter of spheroidal lampshade also may adopt various numerical value.If lampshade size is too large, so put and will take up space very much in indoor, also be inconvenient to carry with, and the light that the LED inside lampshade sends is dispersed to too large cover surface, the light that on lampshade, each part obtains is little, whole lampshade will seem intensely dark, can hinder that people's view and admire impression, and for example fruit lampshade size is too little, that so brings to people views and admires impression and also can die down, and the light that the LED of the inside sends is concentrated in very narrow cover surface, and the light that on lampshade, various piece obtains is all a lot, whole lampshade will seem very bright very dazzling, also can hinder that people's view and admire impression, in concrete enforcement, the utility model preferably uses diameter to be the spheroidal lampshade of 12 centimetres, as long as because the LED lamp reasonable quantity inside light fixture, this sphere size can guarantee that its luminescence is soft moderate, can not too bright also can not be too dark, in addition, this size is not only closest to the stock size of the traditional crystal ball known by current people, and applicable personal both hands are held in both hands its in hand just, people's two palms opened can be allowed to be attached to completely outside globe holder, bring a kind of substantial plentiful tactile aesthetics to like this palm of people, therefore light fixture described in the utility model not only has ornamental value, but also have and enjoy value, with the hands can stroke for people and play with it, people visually view and admire it present beautiful color while can also realize it in sense of touch the plentiful sensation brought to people of ball moulding.

By the luminous intensity of the appearance and size size and all LED in the inside that suitably adjust lampshade, light fixture can be allowed to present more subdued colour: if the color relation that the larger and less so light fixture of luminous intensity that the is all LED in the inside of lampshade presents is softer, otherwise, if lampshade is less and the stronger so light fixture of luminescence that the is all LED in the inside is more dazzling.Because consider that the application of carrying with requires that the volume of lampshade too greatly (if too large that of lampshade is carried with regard to very inconvenient), so luminous soft in order to realize, should not mainly be the luminous intensity controlling all LED inside lampshade.The known LED of current people is divided into low-power LED and great power LED by operating current, and single led rated operational current 20mA belongs to low-power LED, and what single led rated operational current was greater than 300mA belongs to great power LED.If single led luminous intensity is all very large employing great power LED! When lampshade volume is little, too much light concentrates on the lampshade of small surface area, and people can be allowed to feel dazzling, namely too bright, if want to allow light fixture present soft color, that have to use large volume lampshade instead, can so be inconvenient to again carry with.So the utility model preferably uses low-power LED in concrete enforcement, because single low-power LED luminous intensity is all very little, light is distributed to cover surface allows people look very soft, many low-power LEDs can be arranged inside lampshade, according to lampshade volume actual size degree, not only bright but also soft with the color guaranteed whole light fixture and present by the quantity suitably adjusting the inside LED.In addition, low-power LED is preferably used to save electric energy in circuit of the present utility model, as everyone knows, low-power LED is better than the light efficiency of great power LED, give one example: although the total current that 15 low-power LEDs are together in parallel equals the operating current of a great power LED, their operating voltage too, but total luminous intensity of 15 low-power LEDs is obviously greater than a great power LED.So in order to reduce power consumption, under the condition reaching same illumination effect, the utility model preferably uses low-power LED.Light fixture described in the utility model is battery-powered, so guaranteeing to require under the prerequisite realizing product function that the power consumption of whole circuit is the smaller the better, if the power consumption of whole circuit is less, so battery use up at every turn electricity can time of continuous firing longer.

As everyone knows, the light that LED sends not is uniform in the distribution situation in space, and generally directly over LED, the light of position (i.e. normal direction) is the strongest, and depart from this normal direction far away, light is more weak.If the light allowing certain LED send all shines directly into lampshade, the light that so some places obtain on lampshade is more just seems brighter, therefore speck is become, the light that some places obtain less just seems darker, therefore become shadow zone, finally cause the irregular phenomenon of brightness light and shade on lampshade, again owing to there being the luminous colour mixture of the LED of different colours inside lampshade, on lampshade, any one position is different with the distance between different LED, also lampshade tone skewness can be caused, in such as red LED and green LED while, luminescence is mixed to get yellow, if the ruddiness that on lampshade, certain position obtains more more it just present partially red, if the green glow that on lampshade, certain position obtains more more it just present partially green, if the ruddiness that on lampshade, certain position obtains and green glow as many it just closer to yellow, places different on lampshade is finally caused to present different colors, i.e. tone skewness.

The color presented to allow light fixture evenly, the technical measures that the utility model is selected are device light diffusing sheets between LED and lampshade, and the light that LED is sent is being irradiated to lampshade again after light diffusing sheet.Light diffusing sheet be utilize light pass through to run into the different medium of refractive index in way time, reflect, to reflect and the physics of scattering is imagined, in the base material sheet material bases such as PMMA, PC, PS, PP, add inorganic or organic light diffusing agent (diffusion particle) by the means of chemistry or physics or artificially adjust light by the arrayed of the micro-feature structure of substrate surface, make light generation multi-angle, multidirectional reflection, refraction and scattering, thus change the course of light, realize the abundant scattering of incident light produces optics diffusion effect with this.Light diffusing sheet is mainly used in the dazzle that some LED indoor produce to eliminate LED at present, even if lamp luminescence becomes softer.

If device light diffusing sheet between LED and milky translucent lampshade, the light that LED sends just can will be irradiated on lampshade after light diffusing sheet, light is reflecting in light diffusing sheet, refraction and scattering, the incident ray of rule is originally become and does not have well-regulated emergent ray completely, one way or another is irradiated on lampshade, this exit direction does not have well-regulated light completely, all various pieces on lampshade can be allowed all to obtain average light irradiate, namely realize presenting evenly color on lampshade, allow people on lampshade, can't see speck and shade, also can't see the irregular phenomenon of the tone simultaneously presenting different colours.The profile of above-mentioned light diffusing sheet can be flat, also can be the spherical cap shape that centre raises up, and can also be other shape.Such as light diffusing sheet can be designed to the shape of half ball cover, so light being irradiated to the large lampshade of outside again after this little ball cover (light diffusing sheet), can obtain uniform color too.In addition, can also the light diffusing sheet of device two or more quantity between LED and milky translucent lampshade.The utility model is preferred embodiment the light diffusing sheet of a device writing board shape between LED and milky translucent lampshade.

In sum, the mounting structure of light diffusing sheet in the utility model and technical problem to be solved are all different from its usage in existing product: in existing product be all light diffusing sheet device between LED light source and human eye, the light that LED sends just is being irradiated to human eye after light diffusing sheet, technical problem to be solved is exactly to want hidden light source, allow people feel lamp luminescence is soft can not be dazzling, and remain uneven in the Luminance Distribution of lamp surface.Mounting structure of the present utility model be then light diffusing sheet device between LED light source and milky translucent lampshade, the light that LED sends will first through light diffusing sheet, again through half milky translucent lampshade, finally just enter human eye, technical problem to be solved allows the brightness of lamp surface and tone be evenly distributed, instead of in order to hidden light source, because even without light diffusing sheet, only according to the effect that milky translucent lampshade can reach hidden light source, make lamp luminescence soft.

It is emphasized that device light diffusing sheet is the preferred version of the utility model in concrete enforcement between LED and lampshade, instead of essential features of the present utility model.If the assorted LED quantity in circuit is more and be all uniformly distributed on lamp plate and become a more satisfactory area source, if the light sent as each LED shines directly into lampshade also can not present obvious brightness irregularities or the uneven color of tone, also can not device light diffusing sheet between lampshade so of the present utility model and LED, that is in this case, as long as it is obviously uneven that human eye can't see color, then light diffusing sheet both can install and also can not install.

Allow the situation of not device light diffusing sheet although really exist in actual applications and can also cost be saved like this, but in line with striving for bringing better hope of viewing and admiring experience to consider to people as far as possible, the utility model still adhere to preferred version be will between LED and lampshade device light diffusing sheet, that is, even when allow not device light diffusing sheet, the utility model think preferably remain will between LED and lampshade device light diffusing sheet, because the color that lampshade presents can be made like this to become further even, this on the basis of original uniform color more further uniform color present, can be experienced by human eye in the application scenario viewed and admired next to the skin, this color developing effect surmount original equally distributed color of generality the visual experience that to bring to people, and allow people see more fine and smooth color performance, thus bring to people and finer view and admire experience, so device light diffusing sheet remains significant between LED and lampshade.

Pure color is presented in order to allow light fixture, the technical measures that the utility model adopts are four primary LED mixed-color methods, namely in the technical solution of the utility model, the LED of red, green, blue three kinds of colors is not only had to participate in mixed light, but use instead red, green, blue, white these four kinds of colors LED carry out mixed light, that is on the basis of the LED of red, green, blue three look, increase a kind of LED of white again, this is in order to ensure obtaining the necessary most critical technical characteristic of pure color.The LED first introducing red, green, blue three look is below difficult to mixed light and obtains the fact of pure color and analyze its reason, and then illustrates how technical measures of the present utility model solve this technical problem.

The concept of first clear and definite " pure white ": white in fact definitely impure in reality, because white is a relative concept inherently, but in LED technical field of viewing and admiring next to the skin, to the requirement of the clarity of white, at least should reach and allow human eye can't see other color to be mingled among white, the white meeting this requirement just can be considered to qualified pure white.Because people for carry secretly in pure white variegated very responsive, the most easily discover, the purposes occasion of especially closely viewing and admiring, among the white that light fixture presents, the variegated on a small quantity of entrained with also in so many words can be watched with the tail of one's eye by people, so judge that can a kind of light fixture present pure color, be exactly mainly see that can it present qualified pure white.One of them technical problem to be solved in the utility model is exactly to allow light fixture stably present pure color, comprises and presents qualified pure white.

Although be that available red, green, blue is mixed to get all colors in theory, but when in practice the illumination that red LED, green LED, blue led send being mapped to milky translucent lampshade, but be difficult to obtain qualified pure white, and be always entrained with variegated wherein, be such as entrained with a bit red or inclined cyan.By suitably adjusting the ratio of the brightness of the LED of three kinds of colors, although them can be allowed finally to be mixed to get qualified pure white, the LED in different lamps but requires that the rate value of brightness is different, is therefore difficult to batch production.Give one example:

Suppose the red of same batch of our existing same manufacturer production, green, each 1000 of blue led, first therefrom randomly draw red, green, each 10 of blue led, they are arranged on one piece of lamp plate equably, and the light allowing them send is irradiated to milky translucent lampshade all equably, at this moment we generally can see lampshade presents obviously impure white, then we accurately control the luminosity of (utilizing computer to carry out PWM pulsewidth modulation) three kinds of LED more respectively from consecutive variations between 0% to 100%, by constantly adjusting the respective brightness of three-color LED and observing the purity of the white that lampshade presents, suppose hot, green, the brightness of blue led is respectively 78.7%, 65.2%, just qualified pure white can be presented on lampshade when 100%, then just this can be obtained qualified lily light fixture as sample by mixed light, we shine this sample 2970 of remainder LED are made 99 duplicate, red in each product, green, the brightness of blue led is also all set to 78.7%, 65.2%, 100%, we think that these 99 duplicate also can obtain the same pure white of sample, result surprisingly: the lampshade of these 99 duplicate all could not present pure white, but the redness partially had, the inclined cyan had, what have is mingled with other color, each lamp color is rambling at a glance.If want to allow these 99 duplicate all present pure white on lampshade, we have to adjust respectively to the luminosity of the red, green, blue look LED on their each block lamp plates, last these 100 ratios that can present the luminosity of the red, green, blue look LED of lily product (comprising sample) are different, and be that milli is random, similarly be that to can not find two panels be duplicate for leaf on one tree.This example illustrates, even if the same batch of LED adopting same producer to produce participates in mixed light, when mixed light obtains white, if allow red, green, blue look LED adopt same brighteness ratio, so most of light fixture all can not get pure white; If want to allow each light fixture obtain pure white, so will to the light modulation respectively of the red, green, blue look LED luminance in each light fixture, this is a pretty troublesome process wasted time and energy, and is not easy to realize in the occasion producing light fixture in enormous quantities.

In addition, in the LED lamp of closely viewing and admiring, when the LED mixed light of red, green, blue three look obtains desaturated color time, also can run into same problem.Such as when mixed light obtains pink, need the LED of red, green, blue three look to light common participation mixed light colour mixture simultaneously, if the luminosity of red LED is more or a little less, the at most only pink shades of meeting minimal effect, what human eye was seen is still pure pale red; As the more point of luminosity or a little less point of fruit green or blue led, will be impregnated in the variegated of other significantly in the pale red that lampshade presents, people can be allowed to see significantly, and pale red is impure.When production in enormous quantities light fixture, if the desaturated color that in different lamps, red, green, blue look LED adopts same brighteness ratio then to mix is impure, if require the desaturated color that each light fixture all mixes pure, require that the red, green, blue look LED of each product adopts the random brighteness ratio of different milli respectively.

, in the LED lamp of closely viewing and admiring, when the LED mixed light of red, green, blue three look obtains heavy shade time, human eye does not but recognize the impure problem of above-mentioned blend color.What such as when only having red LED lamp to light, lampshade presents is red, if the wavelength of ruddiness that this LED sends is partially little by little long or partially short little by little, human eye does not see that the redness that lampshade presents has anything different; When only having red and green LED for another example luminescence is mixed to get yellow simultaneously, if the more more point of ruddiness brightness or the more more point of green glow, human eye is also not aware of the yellow presented on lampshade anything different.

In sum, time the LED of red, green, blue three look lights to be mixed to get white or desaturated color simultaneously, be difficult to obtain pure color, this is very distinct issues in the LED lamp application of closely viewing and admiring.Why can cause this problem, mainly because all there is certain difference between the LED individuality of arbitrary look in emission wavelength and luminous intensity in its reason, give an example: suppose that 1000 each lamps of red LED of same batch that same producer is produced all provide onesize electric current all normally to light by them, each LED institute's luminous intensity and wavelength is measured one by one again with accurate instrument, result will find the luminous intensity of these 1000 red LED and wavelength different, namely the glow color of these 1000 red LED and brightness are different in fact strictly speaking, although similarly be that leaf on same one tree is similar but different.

The difference of emission wavelength and light intensity why can be there is between LED individuality, because the later stage that producer is producing LED will through the operation of one " color-division ", carry out last go-on-go to the luminous intensity of LED and wavelength exactly, luminous intensity and the wavelength of the finished product LED of same batch after go-on-go are all in the error range allowed.Light intensity and the photochromic allowable error scope of the small-power red, green, blue look LED of certain batch that such as certain producer produces are:

The luminous intensity of red LED allows between 100mcd to 200mcd, and light-color wavelengths allows between 620nm to 625nm;

The luminous intensity of green LED allows between 800mcd to 1000mcd, and light-color wavelengths allows between 515nm to 520nm;

The luminous intensity of blue led allows between 300mcd to 350mcd, and light-color wavelengths allows between 470nm to 475nm;

In fact, the scope of the luminous intensity that different manufacturer allows LED and wavelength has different standards, even if same producer, the product produced in different batches, it allows the scope of value also may be different.In a word, LED, being produced the operation of " color-division " in the flow process come, allows the luminous intensity of each LED and wavelength to be exactly different, as long as testedly will be decided to be certified products in the span allowed.

Because that carries secretly in the application scenario people closely viewed and admired are for pure white is variegated very responsive, so when red, green, blue look LED mixed light obtains white, necessarily require the brighteness ratio perfect coordination of three kinds of LED, otherwise if the brightness of any one color is too many little by little or very little little by little, capital presents variegated and clearly can be watched with the tail of one's eye by people on lampshade, thus hinder people view and admire impression.Due to red, green, just be doomed to exist between individuality the difference of light intensity and light-color wavelengths time blue led is produced factory, this species diversity is red, green, blue led mixed light can affect the clarity of the white of final gained when obtaining white, such as when the luminosity of red LED is crossed more, the white of mixed light gained can present partially red, the luminosity of hot LED is more less slightly, and the white of mixing can present inclined cyan, in like manner, luminosity that is green and blue led cross more or more on the low side also all can affect the white of mixing obvious impure, red in addition, green, the deviation of blue led light-color wavelengths separately also can affect the clarity of the white of mixed light gained, the field closely viewed and admired, this is very distinct issues.If in order to red, green, blue look LED more easily can obtain pure white by mixed light, and deliberately require that LED manufacturer reduces the light intensity of assorted LED and photochromic span to greatest extent when carrying out color-division, a large amount of LED will be caused to be eliminated and to become defective work, production cost is caused significantly to rise, so this is also infeasible.Under lab we finally realize the luminosity of red, green, blue look LED in certain LED lamp to be adjusted to just can be mixed to get qualified pure white after may spending the plenty of time, but absolutely not brightness of also removing the three kinds of LED regulated in each LED lamp like this when producing LED lamp on a production line in enormous quantities, because all too has bothered! So when batch production, almost can think that red, green, blue look LED cannot obtain qualified pure white by mixed light.In like manner, be also like this time red, green, blue look LED mixed light obtains desaturated color.

In sum, the easy mixed light of red, green, blue look LED obtains qualified saturated color, is but difficult to mixed light and obtains qualified white and unsaturated color.Ubiquity technology prejudice in prior art---obtain all colors with red, green, blue look LED mixed light, in LED technical field of viewing and admiring light fixture next to the skin, this technology prejudice hinders people to LED research and development of viewing and admiring field next to the skin just, due to this technology prejudice, owing to it is believed that red, green, blue look LED can be mixed to get white and thus give up employing White LED participation colour mixture, be therefore difficult to mixed light and obtain pure white and unsaturated color.The utility model overcomes this technology prejudice, eliminate the way of " obtaining white with red, green, blue look LED mixed light ", on the basis of three-primary color LED, add White LED again and participate in mixed light colour mixture, use White LED luminous acquisition pure white separately instead, and continue to adopt red, green, blue look LED mixed light to obtain saturated color, the way of superseded " red, green, blue look LED simultaneously luminous mixing obtains unsaturated color ", after using the saturated color of red, green, blue look LED mixed light acquisition instead, mixed light obtains unsaturated color together with White LED again.Facts have proved, the technological means that White LED participates in mixed light colour mixture is added in LED technical field of viewing and admiring next to the skin, well solve the technical problem that LED mixed light obtains pure white and desaturated color, and when producing in enormous quantities also need not again to the LED of each light fixture respectively light modulation also can guarantee that each light fixture can stably present pure all colours.

The feasibility principle of these technical measures is: because White LED needed to go through strict photochromic inspection before being produced factory, only have those LED that can send qualified pure white light just to grant to dispatch from the factory, so we to purchase time light that each White LED of obtaining sends is irradiated on lampshade separately one and present qualified pure white surely, people can never be allowed to see have any variegated.Although the operation of " color-division " also will be gone through before White LED dispatches from the factory, the luminous intensity of the White LED of same batch and colour temperature are all in certain span allowed, but human eye is insensitive to the brightness of White LED and colour temperature deviation, even if so the luminance that has of the White LED of same batch a bit or the dark colour temperature a bit, to have a bit high or lower, human eye does not but see that the white that lampshade presents has anything different, therefore can ignore the deviation of luminous intensity between White LED individuality and colour temperature.

In a word, " four primary LED mixed-color method " of the present utility model can be easy to mixed light and obtain all pure saturated color, unsaturated color and white, significantly distinguishing compared with " Tricolor LED mixed color method " in prior art in the mode of specific implementation colour mixture is---" four primary LED mixed-color method " of the present utility model occurs red never, green, the state that blue three-color LED lights together, such as red when obtaining lily, green, blue three-color LED does not light, red when acquisition saturated color or unsaturated color, green, blue three-color LED all only has a certain or two kinds of LED to light participation mixed light, by contrast, " Tricolor LED mixed color method " of the prior art but all requires red when acquisition white or unsaturated color, green, blue three-color LED lights together and participates in mixed light colour mixture, Here it is significantly distinguishes.The mode of " four primary LED mixed-color method " of the present utility model specific implementation colour mixture is:

A certain in the middle of red, green, blue look LED or two kinds of LED light and White LED does not work time, lampshade presents corresponding saturated color, such as when White LED does not work and only have redness (green or blue) LED to light separately time, lampshade presents respectively saturated redness (green or blue), when only having red LED and green LED to light for another example, lampshade presents pure saturated yellow;

Only have White LED to light and red, green, blue look LED does not work time, lampshade presents pure white;

Obtain saturated color with red, green, blue look LED mixed light and when mixed light, lampshade presents corresponding unsaturated color again together with White LED.Such as allow red LED, White LED light mixed light together and obtain pale red, allow red LED, green LED light mixed light for another example together with White LED and obtain faint yellow.

The beneficial effects of the utility model are: light fixture can be carried with, and can present different colors, and the pure color presented, even, soft, meet the application requirement that human eye is is closely viewed and admired, and are easy to realize producing in enormous quantities.Last simple cause and effect corresponding relation of concluding every technical measures of the present utility model and technique effect:

Because light fixture is battery-powered, so can carry with;

Because adopt milky translucent lampshade, assorted LED is luminous colour mixture under the control of integrated circuit, and light is irradiated to lampshade, the color allowing people view and admire lampshade presents, so light fixture can present different colors, and the color presented is soft;

Because the LED in circuit includes redness, green, blueness and white LED, so light fixture can put " four primary LED mixed-color method " to good use to present all pure colors, and production in enormous quantities in need not to each light fixture respectively light modulation also stably can guarantee that each light fixture can present pure color;

Because whether people choose reasonable can want device light diffusing sheet according to actual needs, can guarantee that light fixture presents uniform color.

Accompanying drawing explanation

Fig. 1 is the light fixture vertical section organigram of the utility model first embodiment.

Fig. 2 is the light fixture vertical section organigram of the utility model second embodiment.

Fig. 3 is the circuit theory schematic diagram of two embodiments of the present utility model.

The parts title shown in each label is in fig. 1 and 2 respectively: 1. lampshade, 2. base, 3. rope fastening hole, 4. light, 5.LED, 6. circuit board, 7. wire, 8. light, 9. light diffusing sheet, JP. charging inlet, BT. battery, SW1. power switch, SW2. point touch of key-press.

Detailed description of the invention

List two specific embodiments of the present utility model below, all adopt spheroidal lampshade due to these two embodiments and use truncated cone-shaped base, there is the appearance and modeling of the known crystal ball of people, again due to be all adopt rechargeable battery power, be called " the portable seven color LED lamp of rechargeable type with crystal ball appearance and modeling " so I has got a name to them, because this name is oversize, in order to simplify expression, also for the ease of product described in the utility model socially public praise spread, therefore I by its name referred to as " rechargeable LED crystal ball ".The circuit theory of these two embodiments is identical with product using method with SCM program, and just the product configurations of two embodiments is similar, first introduces the identical place of two embodiments below, finally introduces the different place of two embodiments again.

In the embodiment of two shown in Fig. 1 and Fig. 2, light transmittance about 80% selected by lampshade (1), diameter 12 centimetres, thickness 1 millimeter, positive round is spherical, milky translucent lampshade, there is the circular open of diameter 65 mm in size below of lampshade and is connected with base, base (2) is the rotary body of the truncated cone-shaped made with opaque plastic material, the side of base and bottom surface apply argenteous paint, the upper opening of base is connected with lampshade, there is screw thread in the outside of lampshade lower opening, the inwall of base upper opening also has corresponding screw thread, lampshade is alignd with the aperture position of base, just can on direct for lampshade precession base, afterwards can also together with the seaming position spreading glue again between lampshade with base clings them more firmly, lampshade and base enclose formation internal cavities.Open the rope fastening hole (3) of a diameter 2 millimeters in the lower edge position of base, one end of a wrist rope is tied up to this aperture, people can carry whole light fixture by wrist rope, carry with to facilitate.Charging inlet (JP) device in the side of base (2) and local be exposed, and be connected by two wires (7) between the battery (BT) of the inside, just can the battery (BT) inside light fixture be charged when the charger in the external world is inserted in this charging inlet (JP) time.Voltage is that the rechargeable battery (BT) of 12V to be placed on inside base and to cement with glue fixing, the positive pole (+) of battery (BT) is connected to a pin of power switch (SW1) by a wire, another pin of power switch is connected on the positive source input of circuit board (6) by another wire, the negative pole (-) of battery (BT) is connected directly between the power cathode input of circuit board (6) by a wire.Power switch (SW1) adopts red rocker type switch, can two pins of gauge tap switch between conducting state and off-state with hand Push switch.Point touch of key-press (SW2) adopts Self-resetting button open in usual, two pins of this button are in off-state at ordinary times, to push button just closed conducting between its two pins with hand, to decontrol after hand between its bipod and automatically recover off-state again, two pins of some touch of key-press (SW2) are connected to the relevant position on circuit board (6) by two wires (7).Power switch (SW1) and some touch of key-press (SW2) all device in the bottom surface of base and local be exposed.

In both embodiments, whole LED in circuit diagram shown in Fig. 3 are arranged in the front of the circular PCB of one piece of diameter 64 millimeters, and allow the LED of each color distribute equably in face all on circuit boards as far as possible, other circuit devcie in circuit diagram shown in Fig. 3 (does not comprise SW1, SW2 and BT) be then arranged in the back side of this circuit board, draw the electrical connecting wires in PCB between each element according to circuit theory shown in Fig. 3 and complete the manufacture of PCB, by each electronic devices and components welding on circuit boards, wherein all LED adopt rated operational current to be the low-power LED of 20 milliamperes, wherein L1, L2, L3, L4, L5, L6 is red LED, L7, L8, L9, L10, L11, L12 is green LED, L13, L14, L15, L16, L17, L18 is blue led, L19, L20, L21, L22 is White LED, because the luminosity of White LED is relatively large, so the LED of other color of number ratio of White LED is less in circuit, JP is charging inlet input, BT is rechargeable battery, SW1 is power switch, SW2 is the some touch of key-press of open type Self-resetting, two pins of this button are the state being in disconnection at ordinary times, to push button just closed conducting between its two pins with hand, to decontrol after hand between its bipod and automatically recover off-state again, when a touch of key-press SW2 is not pressed time, P2.1 pin is in high level state, when SW2 is pressed time, P2.1 is connected with power cathode, so P2.1 is just in low level state by resistance R9, R1, R2, R7, R8 select the resistance in resistance 330 Europe, and R3, R4, R5, R6 select the resistance in resistance 150 Europe, and the effect in circuit of these resistance is current limliting, Q1, Q2, Q3, Q4 select model to be the triode of S8050, single-chip microcomputer U2 controls the luminous colour mixture of LED of 4 kinds of colors by these 4 triodes, such as P1.1 pin controls lighting or extinguishing of all red LED, when P1.1 exports high level time, the LED of all redness lights, when P1.1 output low level time, then the LED of all redness extinguishes, in like manner, P1.2, P1.3, P1.4 pin controls the lighting or extinguish of LED of green LED, blue LED, white respectively, R9, R10, R11, R12, R13 select the resistance of resistance 2 kilo-ohms, and C1, C4 select the ceramic disc capacitor of capacity 0.1 microfarad, and C2, C3 select the electrochemical capacitor of capacity 100 microfarad, and these 4 electric capacity effects are in circuit filtering, U1 select model be 7805 circuit of three-terminal voltage-stabilizing integrated, its effect is in circuit that the DC voltage that the cell voltage of 12V is converted into 5V is powered to single-chip microcomputer U2, U2 selects model to be the one chip microcomputer integrated circuit (hereinafter referred to as single-chip microcomputer) of AT89C51, in order to simplify accompanying drawing, Fig. 3 only depicts 5 input and output pins P1.1, P1.2, P1.3, P1.4, P2.1 and two power supply input pins VCC, GND of this single-chip microcomputer, other pin of this single-chip microcomputer and the peripheral circuit of single-chip microcomputer are not all drawn in figure 3, but in actual implementation process, should according to selected single-chip microcomputer specific requirement give this single-chip microcomputer connect relevant reset circuit and quartz crystal oscillator circuit.Although look that circuit board (6) suspends in mid air in fig. 1 and 2, but circuit board is be fixed on the stud of base by screw lock in fact, just in order to avoid stud and screw, each circuit unit mutually blocks and affects and read figure with other in the accompanying drawings, does not therefore deliberately draw the stud and the screw that are used for support circuit plate (6) in base (2) the inside in fig. 1 and 2.In order to simplify accompanying drawing, only depict 4 LED(5 in fig. 1 and 2) to represent all LED in circuit board, on circuit board, other the electronic devices and components such as LED, resistance, electric capacity, triode and integrated circuit all do not draw.Be positioned at LED(5 in fig. 1 and 2) directly over arrow (4) represent the light that LED sends.Between charging inlet (JP) with battery (BT), battery (BT) with between power switch (SW1) with circuit board (6), some touch of key-press (SW2) with between circuit board (6) pass through wire (7) be connected.

In both embodiments, the LED mixed light allowing single-chip microcomputer U2 control 4 kinds of colors by programming obtains shades of colour, and the implementation of concrete colour mixture is:

A certain in the middle of red, green, blue look LED or two kinds of LED light and White LED does not work time, lampshade presents corresponding saturated color, such as when P1.1 export high level and P1.2, P1.3, P1.4 all output low level time, red LED is only had to light separately, lampshade just presents saturated redness, in like manner, in time only having P1.2 or P1.3 to export high level, lampshade just presents saturated green or saturated blueness.For another example when P1.1 and P1.2 export high level and P1.3 and P1.4 output low level time, only have red LED and green LED to light, lampshade present saturated yellow;

Only have White LED to light and red, green, blue look LED does not work time, lampshade presents pure white, namely only have P1.4 export high level and P1.1, P1.2 and P1.3 all output low level time lampshade on present pure white;

Obtain saturated color with red, green, blue look LED mixed light and when mixed light, lampshade presents corresponding unsaturated color again together with White LED.Such as allow P1.1 and P1.4 export high level and P1.2 and P1.3 output low level time, red LED lights mixed light and obtains pale red together with White LED; For another example allow P1.1, P1.2 and P1.4 export high level and P1.3 output low level time, red LED, green LED light mixed light and obtain faint yellow together with White LED;

In a word, the LED that single-chip microcomputer U2 just can control 4 kinds of colors by the low and high level combination of these 4 output pins of control P1.1, P1.2, P1.3, P1.4 obtains all colors according to " four primary LED mixed-color method " mixed light, just lists each color of wherein likely mixing here no longer one by one.

In both embodiments, single-chip microcomputer U2 is allowed to detect the level change of P2.1 pin to judge whether to switch color mode by programming, P2.1 pin unsettled when a touch of key-press SW2 is not pressed time is in high level state, when SW2 is pressed time, P2.1 is connected with power cathode by resistance R9, so P2.1 is just in low level state, Here it is requires that single-chip microcomputer switches the color mode of lower a kind of control LED mixed light.Such as, when light fixture presents redness under Single-chip Controlling time, click a touch of key-press SW2, single-chip microcomputer just controls light fixture and is switched to yellow, then by a SW2, then controls again light fixture and be switched to lower a kind of color---and green, by that analogy.Allow single-chip microcomputer change according to the level of input pin by programming and change the level combinations mode of output pin, this is the basic skills being easy to accomplish to one skilled in the art, and the content of this respect just repeats no more.

Introduce the product using method of these two embodiments below: before the use, first stirring power switch (SW1) allows it light to light fixture energising, then the color mode presented by light fixture by pressing a touch of key-press (SW2) is switched to the color mode that will view and admire, again light fixture is placed in indoor to view and admire for people, or light fixture is held in both hands and is enjoying arbitrarily on hand, also by the wrist rope tying up to rope fastening hole (3), whole light fixture can be carried, carry with and enjoy for people anywhere.When wouldn't need to view and admire, power switch (SW1) can be stirred and cut off the electricity supply to light fixture and allow it extinguish.Time battery electric quantity inside light fixture soon exhausts, the charging inlet (JP) that charger is connected to light fixture side can be charged, again charger is pulled out from charging inlet (JP) after charging complete.

Be more than the identical content of two specific embodiments of the present utility model, the following describes the content that this two embodiments are different:

In the embodiment of first shown in Fig. 1, the position of circuit board (6) is fixed on spheroidal lampshade lower opening position, the light allowing the LED of circuit board top send shines directly into lampshade, because the LED quantity on circuit board is more, and the LED of each color distributes in face on circuit boards equably as far as possible, so all LED on whole circuit board become an area source approx, assorted LED illumination is uniformly distributed haply to the light on lampshade, and people can't see the phenomenon of the irregular or tone skewness of obvious brightness light and shade outside lampshade;

In the embodiment of second shown in Fig. 2, the place (being namely the equal of that the circuit board position in the embodiment of first shown in Fig. 1 is moved down about 6 millimeters of distances) being fixed on below distance spheroidal lampshade lower opening position about 6 millimeters of circuit board (6), the light diffusing sheet (being namely the equal of the position that light diffusing sheet is positioned at the about 6 millimeters of distances of circuit board) of the circle of the thickness 2 millimeters of one piece of diameter 64 millimeters is fixed again in spheroidal lampshade lower opening position, making the LED(5 on circuit board (6)) light that sends is being irradiated to lampshade again after light diffusing sheet (9).Can be seen by Fig. 2, after light diffusing sheet (9), originally the incident ray (4) of rule becomes and does not have well-regulated emergent ray (8) completely, and one way or another is irradiated on lampshade (1), thus can present on lampshade evenly distribution of color.In order to simplify accompanying drawing, some parts that no longer repeat mark is identical with Fig. 1 in fig. 2, please refer to Fig. 1.In order to simplify accompanying drawing, do not draw the structure member for supporting fixed light diffuser plate (9) in fig. 2 yet.

Claims (1)

1. portable seven color LED lamp, shell is formed by lampshade and base, the inside device has each circuit unit comprising LED, it is characterized in that: lampshade adopts milky translucent lampshade, electric routing battery inside light fixture is powered, LED in circuit includes redness, green, blueness and white LED, and they are luminous colour mixture under the control of integrated circuit, and the light that LED sends is irradiated to lampshade.