CN107327801A - The adjusting method of LED illumination light color temperature and the LED illumination lamp of adjustable color - Google Patents
The adjusting method of LED illumination light color temperature and the LED illumination lamp of adjustable color Download PDFInfo
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- CN107327801A CN107327801A CN201710657876.7A CN201710657876A CN107327801A CN 107327801 A CN107327801 A CN 107327801A CN 201710657876 A CN201710657876 A CN 201710657876A CN 107327801 A CN107327801 A CN 107327801A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses the LED illumination lamp of a kind of adjusting method of LED illumination light color temperature and adjustable color, the adjusting method of LED illumination light color temperature comprises the following steps：Step S1：Choose blue light LED light source and fluorescent film；Step S2：A part of blue light that control blue light LED light source is sent contacts to produce white light with fluorescent film；Step S3：Another part blue light output LED illumination light that white light and blue light LED light source are sent, wherein, the ratio between energy by adjusting white light and another part blue light, to adjust the colour temperature of LED illumination light.According to the adjusting method of the LED illumination light color temperature of the present invention, implementation is simple, easily realize.
Description
Technical field
The present invention relates to field of LED illumination, more particularly, to a kind of adjusting method and adjustable color of LED illumination light color temperature
LED illumination lamp.
Background technology
LED has been widely used in lighting device as light emitting source, there is energy-conservation, cheap, long lifespan, LED light
Source can coverlet string the advantages of control.Requirement more and more higher of the people to lighting source, adjustable color can meet people to color
The different requirements of attribute, for example, European likes the light source of cool colour color-temperature regulating, the light source of Asian's then preference warm colour color-temperature regulating.
Cool tone light source generally gives people far-reaching, calm, plain sensation；Warm tones light source gives people enthusiasm, celebrating, gentle sensation.Cause
This, the lighting apparatus of adjustable color can meet the requirement of people not in the same time to colour temperature.
At present, light source generally realizes that the mode of adjustable color is to drive the white of high and low colour temperature respectively using 2 dimming power sources
Light LED, realizes that the colour temperature of illumination light is adjusted by adjusting 2 kinds of LED driving current.Although this mode can realize illumination light
Colour temperature is continuously adjusted, but needs the LED of high color temperature and the LED collocation of low colour temperature to use, and wastes the LED of middle colour temperature,
Other high color temperature LED, low colour temperature LED it is also proposed that high requirement, therefore further simplify the colour temperature of light source to LED sorting collocation
Adjustable mode is significant.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes a kind of LED
The adjusting method of illumination light colour temperature, the adjusting method of the LED illumination light color temperature can realize the adjustable color of LED illumination light,
Mode is simple, easily realize.
The present invention also proposes a kind of LED illumination lamp of adjustable color, the realization simple in construction, easy of the LED illumination lamp.
The adjusting method of LED illumination light color temperature according to embodiments of the present invention, comprises the following steps：Step S1：Choose blue
Light LED/light source and fluorescent film；Step S2：A part of blue light for controlling the blue light LED light source to send contacts to produce with fluorescent film
Raw white light；Step S3：LED shines described in another part blue light output that the white light and the blue light LED light source are sent
Mingguang City, wherein, the ratio between energy by adjusting the white light and another part blue light, to adjust the LED illumination light
Colour temperature.
The adjusting method of LED illumination light color temperature according to embodiments of the present invention, a part of indigo plant that blue light LED light source is sent
Light is contacted with fluorescent film mixes output LED illumination light with above-mentioned white light to produce white light, another part blue light, and white by adjustment
The ratio between energy of light and another part blue light, to realize the purpose of LED illumination pipe adjustable color, mode is simple, easily realize.
According to some embodiments of the present invention, the blue light LED light source is one, to simplify the driving of blue light LED light source
Circuit, reduces cost.
According to some embodiments of the present invention, the fluorescent film is covered on the first reflection object in step sl,
Second is set to reflect object between the blue light LED light source and the fluorescent film；In the step S2, the blue light is controlled
Another part blue light illumination that LED/light source is sent reflects object to described second；In the step S3, described first is reflected
The white light of object reflection and the blue light of the second reflection object reflection.Thus, object and the are reflected by setting first
Two reflection objects, can change the direction of illumination of white light and another part blue light respectively, make photochromic point of the LED illumination light of output
Cloth is more uniform.
According to some embodiments of the present invention, the second reflection object is provided with loophole to cause the blue-ray LED
A part of blue light that light source is sent is irradiated on the fluorescent film through the loophole, it is ensured that a part of blue light can be with fluorescence
Film contacts to produce white light.
According to some embodiments of the present invention, in step s3, institute is adjusted by the irradiated area for adjusting the fluorescent film
The ratio between energy of white light and another part blue light is stated, mode is simple, easily realize.
According to some embodiments of the present invention, the fluorescent film is provided with yellow fluorescent powder, glimmering by adjusting the yellow
The thickness and/or concentration of light powder are same easily to realize to adjust the energy of the white light.
The LED illumination lamp of the adjustable color of embodiment according to a second aspect of the present invention, including：Blue light LED light source；First is anti-
Penetrate object, the surface of the direction blue light LED light source of the first reflection object be on reflecting surface, the reflecting surface covered with
Fluorescent film；Second reflection object, the second reflection object is located between the blue light LED light source and the fluorescent film, described
A part of blue light illumination that blue light LED light source is sent is to the fluorescent film and another part blue light illumination to second reverberation
On body.
The LED illumination lamp of adjustable color according to embodiments of the present invention, by being set on the reflecting surface of the first reflection object
Put fluorescent film, and the second reflection object be located between blue light LED light source and fluorescent film so that blue light LED light source send one
Some blue light be irradiated on fluorescent film with by first reflection object reflection and another part blue light illumination to second reflection object on
So that by the second reflection object reflection, two beam reflected lights are mixed into the illumination light of LED illumination lamp, by the shadow surface for adjusting fluorescent film
The ratio of product and the reflective surface area of the second reflection object, it is simple in construction, easy to realize to adjust the colour temperature of LED illumination lamp, it is easy to
Batch production.
According to some embodiments of the present invention, the second reverberation body phase may move to adjust the fluorescence to fluorescent film
The irradiated area of film, mode is simple, easily realize.
According to some embodiments of the present invention, the second reflection object is provided with loophole to cause the blue-ray LED
A part of blue light that light source is sent is irradiated on the fluorescent film through the loophole, it is ensured that a part of blue light can be with fluorescence
Film contacts to produce white light.
According to some embodiments of the present invention, it is described second reflection object be speculum, it is simple in construction, it is easy realize, into
This is low.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the schematic diagram of the adjusting method of LED illumination light color temperature according to embodiments of the present invention；
Fig. 2 is the schematic diagram of the adjusting method of LED illumination light color temperature in accordance with another embodiment of the present invention；
Fig. 3 is the schematic diagram of the adjusting method of the LED illumination light color temperature according to another embodiment of the invention；
Fig. 4 is the schematic diagram of the adjusting method of the LED illumination light color temperature according to further embodiment of the present invention；
Fig. 5 is the schematic diagram of the LED illumination lamp of adjustable color according to embodiments of the present invention；
Fig. 6 is the spectrogram of the illumination light of the LED illumination lamp of adjustable color according to embodiments of the present invention；
Fig. 7 is the illumination light colour temperature of the LED illumination lamp of adjustable color according to embodiments of the present invention with the irradiation of fluorescent film
The variation diagram of the ratio between the reflective surface area of area and the second reflection object.
Reference：
LED illumination lamp 100,
The reflection of blue light LED light source 1, first object 2, the reflection of fluorescent film 3, second object 4, loophole 40a.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " height ", " on ",
" under ", "left", "right", " level ", " interior ", the orientation of the instruction such as " outer " or position relationship be based on orientation shown in the drawings or position
Relation is put, the description present invention is for only for ease of and simplifies description, rather than indicate or imply that the device or element of meaning are necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, limiting
There is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In retouching for the present invention
In stating, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The adjusting method of the LED illumination light color temperature of embodiment according to a first aspect of the present invention is described below with reference to Fig. 1-Fig. 4.
As Figure 1-Figure 4, the adjusting method of the LED illumination light color temperature of embodiment according to a first aspect of the present invention, including
Following steps：
Step S1：Choose blue light LED light source 1 and fluorescent film 3；
Step S2：A part of blue light that control blue light LED light source 1 is sent contacts to produce white light with fluorescent film 3；
Step S3：Another part blue light output LED illumination light that white light and blue light LED light source 1 are sent, wherein,
The ratio between energy by adjusting white light and another part blue light, to adjust the colour temperature of LED illumination light.
Specifically, first, blue light LED light source 1 and fluorescent film 3 are chosen；Secondly, one that blue light LED light source 1 is sent
Blue light is divided to be contacted with fluorescent film 3, blue light acts on fluorescent film 3 and produces white light；Then, by above-mentioned white light and blue light LED light source 1
Another part blue light sent, mixed light is LED illumination light.By adjusting white light and mixed blue light
The ratio between energy of another part blue light that LED/light source 1 is sent, it is possible to reach the purpose of the colour temperature of adjustment LED illumination light.Example
Such as, on the premise of the energy of holding white light is constant, the energy for another part blue light that increase blue light LED light source 1 is sent so that
The ratio between energy of another part blue light that white light is sent with blue light LED light source 1 reduces, and now the colour temperature of LED illumination light can be raised；
Conversely, reducing the energy of another part blue light that blue light LED light source 1 is sent so that it is another that white light and blue light LED light source 1 are sent
The ratio between energy of a part of blue light increases, and now the colour temperature of LED illumination light can be reduced.
It is understood that can also be on the premise of the energy of holding another part blue light be constant, by adjusting white light
Energy, the ratio between the energy to adjust white light and another part blue light, and then adjust the colour temperature of LED illumination light.Specifically, protect
The energy for holding another part blue light is constant, increases the energy of white light so that the increase of the ratio between energy of white light and another part blue light,
Now the colour temperature of LED illumination light can be reduced；Conversely, reducing the energy of white light so that the energy of white light and another part blue light it
Than reducing, now the colour temperature of LED illumination light can be raised.
It is, of course, also possible to the energy of white light and the energy of another part blue light be adjusted simultaneously, to adjust white light and another portion
Divide the ratio between energy of blue light.For example, reducing the energy of another part blue light, while increasing the energy of white light so that white light with it is another
The ratio between energy of a part of blue light increases, and now the colour temperature of LED illumination light can be reduced；Conversely, the energy of increase another part blue light
Measure, while reducing the energy of white light so that the ratio between energy of white light and another part blue light reduces, now the color of LED illumination light
Temperature can be raised.
Thus, contact to produce white light, another portion with fluorescent film 3 by a part of blue light for sending blue light LED light source 1
Point blue light mix output LED illumination light with above-mentioned white light, and by adjusting the ratio between white light and energy of another part blue light, carrys out reality
The purpose of existing LED illumination pipe adjustable color, mode is simple, easily realize, and light source is blue light LED light source 1, it is not necessary to consider
Collocation between different colored light sources, it is not necessary to which a point bin type selectings are carried out to LED/light source, consequently facilitating batch production, while criticizing
During amount production, the color of blue light LED light source 1 is single, then the fluctuation of color is smaller, blue light LED light source 1 is maintained good color
Uniformity.
The adjusting method of LED illumination light color temperature according to embodiments of the present invention, the part that blue light LED light source 1 is sent
Blue light is contacted with fluorescent film 3 mixes output LED illumination light with above-mentioned white light to produce white light, another part blue light, and by adjusting
The ratio between energy of whole white light and another part blue light, to realize the adjustable purpose of LED illumination light color temperature, is used so as to preferably meet
The different demands at family, mode is simple, easily realize, blue light LED light source 1 is easy to batch production.
In the alternative embodiment of the present invention, blue light LED light source 1 is one.For example, as shown in Fig. 2 choosing fluorescent film 3
With a blue light LED light source 1, a part of blue light that the blue light LED light source 1 is sent is contacted to produce white light, separately with fluorescent film 3
A part of blue light is mixed with above-mentioned white light with the LED illumination light needed for output, by the energy for adjusting white light and another part blue light
The ratio between amount adjusts the colour temperature of LED illumination light, to meet user's request.Thus, by the way that blue light LED light source 1 is set into one,
The drive circuit of blue light LED light source 1 can be simplified, cost is reduced.
It is understood that blue light LED light source 1 can also be multiple, only it need to ensure what multiple blue light LED light sources 1 were sent
A part of blue light is contacted with fluorescent film 3 to be mixed with producing white light, another part blue light with above-mentioned white light.For example, such as Fig. 3 institutes
Show, when blue light LED light source 1 is two, now choose fluorescent film 3 and two blue light LED light sources 1, can will be one of blue
The blue light that light LED/light source 1 is sent is contacted to produce white light with fluorescent film 3, the blue light that another blue light LED light source 1 is sent with it is upper
White light mixing is stated with output LED illumination light.But not limited to this.
In a particular embodiment of the present invention, fluorescent film 3 is covered on the first reflection object 2 in step sl, in indigo plant
Second is set to reflect object 4 between light LED/light source 1 and fluorescent film 3；In step s 2, what control blue light LED light source 1 was sent is another
A part of blue light illumination reflects object 4 to second；In step s3, the white light the first reflection object 2 reflected and the second reflection
The blue light that object 4 reflects.Thus, the reflected white-light of object 2 is reflected by setting first, to change the direction of illumination of white light,
Second is set to reflect another part blue light that the reflection of object 4 blue light LED light source 1 is sent, to change the irradiation of another part blue light
Direction, allows white light and another part blue light preferably to mix, so that the photochromic distribution of LED illumination light is more uniform, meanwhile,
The direction of illumination of LED illumination light can be changed, preferably to meet practical application.
Further, the second reflection object 4 is provided with a part of indigo plants of the loophole 40a to cause blue light LED light source 1 to send
Light is irradiated on fluorescent film 3 through loophole 40a.Specifically, the second reflection object 4 is in blue light LED light source 1 and fluorescent film 3
Between so that blue light LED light source 1 and fluorescent film 3 to be spaced apart, the irradiation for the blue light that loophole 40a is sent along blue light LED light source 1
Direction is through the two ends of the second reflection object 4, so that a part of blue light that blue light LED light source 1 is sent can pass through loophole 40a
Contacted with fluorescent film 3 to produce white light, then white light is reflected to be directed away from the first reflection object 2 by the first reflection object 2
Direction is irradiated, and another part blue light illumination that blue light LED light source 1 is sent is in the second reflection object 4 in addition to loophole 40a
On part, above-mentioned another part blue light is reflected to be directed away from the direction irradiation of the second reflection object 4, and then more preferable with white light
Ground is mixed.Thus, by setting loophole 40a on the second reflection object 4, it is ensured that a part of indigo plant that blue light LED light source 1 is sent
Light can contact to produce white light with fluorescent film 3.It is understood that the parameter such as loophole 40a number, shape can basis
Actual requirement is set, preferably to meet practical application.
Certainly, loophole 40a can also be not provided with the second reflection object 4, now, the second reflection object 4 is located at blue light
Between LED/light source 1 and fluorescent film 3 and not by the completely separated setting of blue light LED light source 1 and fluorescent film 3, that is to say, that second is anti-
Penetrate the part that object 4 has only blocked fluorescent film 3 so that what another part of fluorescent film 3 can be sent with blue light LED light source 1
A part of blue light is in contact to produce white light, also ensures that the generation of white light.
In further embodiment of the present invention, in step s3, white light is adjusted by the irradiated area for adjusting fluorescent film 3
The ratio between with the energy of another part blue light.That is, the irradiated area of adjustment fluorescent film 3, i.e. adjustment are contacted with fluorescent film 3
The energy for above-mentioned a part of blue light that blue light LED light source 1 is sent, is produced so as to adjust after this some blue light is acted on fluorescent film 3
White light energy, and then the ratio between adjust the energy of white light and another part blue light, reach the adjustable mesh of LED illumination light color temperature
, mode is simple, easily realize.
Specifically, when the second reflection object 4 is provided with loophole 40a, loophole 40a cross section size can lead to
Certain mode is crossed such as setting movable shadow shield at loophole 40a to realize to adjusting the blocking of loophole 40a.
For example, reducing loophole 40a cross sectional dimensions, that is, reduce the irradiated area of fluorescent film 3, one now contacted with fluorescent film 3
The energy of some blue light reduces, and the energy of another part blue light reflected by the second reflection object 4 increases so that white light with it is another
The ratio between energy of some blue light reduces, so that the colour temperature of LED illumination light can be raised；Increase loophole 40a cross sectional dimensions, i.e.,
Increase the irradiated area of fluorescent film 3, the energy increase of a part of blue light now contacted with fluorescent film 3, by the second reflection object 4
The energy of another part blue light of reflection reduces so that the increase of the ratio between energy of white light and another part blue light, so that LED illumination
The colour temperature of light can be reduced.
In addition, when being not provided with loophole 40a on the second reflection object 4, the second reflection object 4 is in the He of blue light LED light source 1
It is movable between fluorescent film 3, so that the area of a part for the fluorescent film 3 that the second reflection object 4 is blocked changes, so that the
The area of the another part for the fluorescent film 3 that two reflection objects 4 are not blocked also changes, i.e., the irradiated area of fluorescent film 3 occurs
Change.For example, mobile second reflects object 4 so that the area increase of a part for the fluorescent film 3 that the second reflection object 4 is blocked,
Reduce the irradiated area of fluorescent film 3, the energy of a part of blue light now contacted with fluorescent film 3 reduces, by the second reverberation
The energy increase for another part blue light that body 4 reflects so that the ratio between energy of white light and another part blue light reduces, so that LED
The colour temperature of illumination light can be raised；Mobile second reflects object 4 so that second reflects a part for the fluorescent film 3 that object 4 is blocked
Area reduces, that is, increases the irradiated area of fluorescent film 3, and the energy of a part of blue light now contact with fluorescent film 3 increases, by the
The energy for another part blue light that two reflection objects 4 reflect reduces so that the increase of the ratio between energy of white light and another part blue light,
It can be reduced so as to the colour temperature of LED illumination light.
It is understood that when the loophole 40a cross section size on the second reflection object 4 can not be adjusted, it is necessary to
Second reflection object 4 is movable between blue light LED light source 1 and fluorescent film 3, so that the fluorescent film 3 that the second reflection object 4 is blocked
The area of a part change, can equally adjust the colour temperature of LED illumination light.
Alternatively, fluorescent film 3 is provided with yellow fluorescent powder, by adjusting the thickness and/or concentration of yellow fluorescent powder to adjust
The energy of whole white light.Because a part of blue light that blue light LED light source 1 is sent is contacted with fluorescent film 3, wherein in this some blue light
Sub-fraction blue light excites yellow fluorescent powder and sends gold-tinted, above-mentioned gold-tinted and another fraction indigo plant for not exciting yellow fluorescent powder
Light is blended to produce white light.By adjusting the thickness and/or concentration of yellow fluorescent powder to adjust the energy of gold-tinted, so as to reach tune
The purpose of the energy of whole white light, it is same easily to realize.
The LED illumination lamp 100 of the adjustable color of embodiment according to a second aspect of the present invention is described below with reference to Fig. 5-Fig. 7.
As shown in Figure 5-Figure 7, the LED illumination lamp 100 of the adjustable color of embodiment, including indigo plant according to a second aspect of the present invention
The reflection reflection object 4 of object 2 and second of light LED/light source 1, first.
First reflects the surface towards blue light LED light source 1 of object 2 for reflecting surface, covered with fluorescent film 3 on reflecting surface,
Second reflection object 4 is located between blue light LED light source 1 and fluorescent film 3, and a part of blue light illumination that blue light LED light source 1 is sent is arrived
Fluorescent film 3 and another part blue light illumination are on the second reflection object 4.
For example, as shown in figure 5, blue light LED light source 1 can be one, blue light LED light source 1 and first reflects object 2 can be with
Left and right is arranged at intervals, and blue light LED light source 1 can be located at the left side of the first reflection object 2, and reflecting surface is the first reflection object 2
Left-hand face, fluorescent film 3 can be covered on the reflecting surface so that light can penetrate fluorescent film 3 to irradiate on the reflecting surface, and
Changed the direction of illumination of light by reflective surface.Second reflection object 4 is located between blue light LED light source 1 and fluorescent film 3,
So that during 1 electrified light emitting of blue light LED light source, the blue light part that blue light LED light source 1 is irradiated to the right be irradiated on fluorescent film 3 with
White light is produced, white light is irradiated to the left by reflective surface, and another part blue light is shone directly on the second reflection object 4 with quilt
Second reflection object 4 reflects and irradiated to the left, so that white light and the illumination of another part blue light output LED illumination lamp 100
Light.
Wherein it is possible to which the ratio by adjusting the irradiated area of fluorescent film 3 and the reflective surface area of the second reflection object 4, comes
The ratio between energy of white light and another part blue light is adjusted, and then adjusts the colour temperature of the illumination light of LED illumination lamp 100.
Thus, by setting fluorescent film 3 on the reflecting surface of the first reflection object 2, and the second reflection object 4 is located at indigo plant
Between light LED/light source 1 and fluorescent film 3 so that with by a part of blue light illumination that blue light LED light source 1 is sent to fluorescent film 3
One reflection object 2 is reflected and another part blue light illumination is reflected to be reflected by the second reflection object 4 on object 4 to second, two beams
Reflected light is mixed into the illumination light of LED illumination lamp 100, by adjusting the anti-of the irradiated area of fluorescent film 3 and the second reflection object 4
The ratio of area is penetrated, it is simple in construction, easy to realize to adjust the colour temperature of LED illumination lamp 100, and due to LED illumination lamp 100
Light source be only blue light LED light source 1, color is single, be easy to batch production, while batch production when, blue light LED light source 1
Colour fluctuation is smaller, so as to ensure that the good colour consistency of blue light LED light source 1.
The LED illumination lamp 100 of adjustable color according to embodiments of the present invention, passes through the reflecting surface in the first reflection object 2
Upper setting fluorescent film 3, and the second reflection object 4 is located between blue light LED light source 1 and fluorescent film 3 so that blue light LED light source 1
A part of blue light illumination sent on fluorescent film 3 to be reflected by the first reflection object 2 and another part blue light illumination is to second
To be reflected by the second reflection object 4 on reflection object 4, two beam reflected lights are mixed into the illumination light of LED illumination lamp 100, by adjusting
The ratio of the reflective surface area of the irradiated area of whole fluorescent film 3 and the second reflection object 4, to adjust the colour temperature of LED illumination lamp 100,
It is simple in construction, easy to realize, it is easy to batch production.
To verify that the LED illumination lamp 100 of adjustable color according to embodiments of the present invention can meet user to colour temperature not
Same demand, inventor has carried out spectrum analysis to the illumination light of LED illumination lamp 100, has obtained the shadow surface of different fluorescent films 3
(abscissa is the ripple of illumination light to the spectrogram of illumination light when the ratio between product and the reflective surface area of the second reflection object 4 (being designated as S/L)
Long, unit is nm；Ordinate is the intensity of illumination light, and unit is cd), as shown in Figure 6；Meanwhile, also obtain the color of illumination light
(abscissa is S/L, ordinate to the warm variation diagram with the ratio between the reflective surface area of the irradiated area of fluorescent film 3 and the second reflection object 4
For the colour temperature of illumination light), as shown in Figure 7.From fig. 6 it can be seen that the irradiated area of fluorescent film 3 and second reflects object 4
When the ratio between reflective surface area changes, the spectrum of illumination light also changes therewith, illustrates that the colour temperature of illumination light is changed；
It can be seen directly that from Fig. 7, when the ratio between reflective surface area of the irradiated area of fluorescent film 3 and the second reflection object 4 changes,
The colour temperature of illumination light also changes therewith, and the colour temperature of illumination light changes between 5100K-12600K, then the color of illumination light
Also changed.Here, it is necessary to which explanation, S/L span is not limited to the span in figure in 6 and Fig. 7：0.3
≤ S/L≤0.7, S/L value can be adjusted according to the actual requirements.
In some alternative embodiments of the present invention, the second reflection object 4 relative fluorescence film 3 may move to adjust fluorescent film
3 irradiated area.That is, the second reflection object 4 may move between blue light LED light source 1 and fluorescent film 3, so that second
The area of a part for the fluorescent film 3 that reflection object 4 is blocked changes, so that the fluorescent film 3 that the second reflection object 4 is not blocked
The area of another part also change, i.e. the irradiated area of fluorescent film 3 changes, the reflecting surface of the second reflection object 4
Product also changes, then the irradiated area of fluorescent film 3 and the ratio of the reflective surface area of the second reflection object 4 change, mode
Simply, easily realize.
Specifically, mobile second reflects object 4 so that the face of a part for the fluorescent film 3 that the second reflection object 4 is blocked
Product increase, that is, reduce the irradiated area of fluorescent film 3, and the energy of a part of blue light now contacted with fluorescent film 3 reduces, and second is anti-
The reflective surface area increase of object 4 is penetrated, the energy of another part blue light reflected by the second reflection object 4 increases so that fluorescent film 3
Irradiated area and the second reflection object 4 reflective surface area ratio reduce, the ratio between the energy of white light and another part blue light subtracts
It is small, so that the colour temperature of LED illumination light can be raised；Mobile second reflects object 4 so that the fluorescent film 3 that the second reflection object 4 is blocked
A part area reduce, that is, increase fluorescent film 3 irradiated area, the energy of a part of blue light now contacted with fluorescent film 3
Amount increase, the reflective surface area of the second reflection object 4 reduces, and the energy of another part blue light reflected by the second reflection object 4 subtracts
It is small so that ratio increase, white light and another part indigo plant of the reflective surface area of the irradiated area of fluorescent film 3 and the second reflection object 4
The ratio between energy of light increases, so that the colour temperature of LED illumination light can be reduced.
In other alternative embodiments of the present invention, the second reflection object 4 is provided with loophole 40a to cause blue light
A part of blue light that LED/light source 1 is sent is irradiated on fluorescent film 3 through loophole 40a.For example, in the example of hgure 5, second
Object 4 is reflected between blue light LED light source 1 and fluorescent film 3 so that blue light LED light source 1 and fluorescent film 3 to be spaced apart, loophole
The direction of illumination for the blue light that 40a is sent along blue light LED light source 1 is through the two ends of the second reflection object 4, so that blue light LED light source 1
A part of blue light sent can be contacted to produce white light through loophole 40a with fluorescent film 3, and then white light is by the first reverberation
Body 2 is reflected to irradiate to the left, and another part blue light illumination that blue light LED light source 1 is sent removes loophole the second reflection object 4
On part beyond 40a, above-mentioned another part blue light is reflected to irradiate to the left, and then is preferably mixed with white light.Thus, lead to
Cross and loophole 40a is set on the second reflection object 4, it is ensured that a part of blue light that blue light LED light source 1 is sent can be with fluorescent film
3 contact to produce white light.It can also be appreciated that the parameter such as loophole 40a number, shape can be set according to actual requirement
Put, preferably to meet practical application.
Furthermore, loophole 40a cross section size can be set by certain mode for example at loophole 40a
Movable shadow shield is adjusted with realizing to blocking etc. for loophole 40a.For example, reduce loophole 40a cross sectional dimensions,
Reduce the irradiated area of fluorescent film 3, the energy of a part of blue light now contacted with fluorescent film 3 reduces, the second reflection object 4
Reflective surface area increase, increased by the energy of another part blue light that the second reflection object 4 reflects so that the irradiation of fluorescent film 3
The ratio of the reflective surface area of area and the second reflection object 4 reduces, the ratio between the energy of white light and another part blue light reduces, so that
The colour temperature of LED illumination light can be raised；Increase loophole 40a cross sectional dimensions, that is, increase the irradiated area of fluorescent film 3, now
The energy increase of a part of blue light contacted with fluorescent film 3, the reflective surface area of the second reflection object 4 reduces, by the second reverberation
The energy for another part blue light that body 4 reflects reduces so that the reflecting surface of the irradiated area of fluorescent film 3 and the second reflection object 4
The ratio between the energy of long-pending ratio increase, white light and another part blue light increase, so that the colour temperature of LED illumination light can be reduced.
Certainly, when the cross section size of the loophole 40a on the second reflection object 4 can not be adjusted, the second reflection object 4
It can be moved between blue light LED light source 1 and fluorescent film 3, so that the irradiated area of fluorescent film 3 reflects the anti-of object 4 with second
The ratio for penetrating area changes, and can equally adjust the colour temperature of LED illumination light.
In the alternative embodiment of the present invention, the second reflection object 4 is speculum, simple in construction, easy realization, cost
It is low.Certainly, the second reflection object 4 can also can play the object of reflection light for other.
Wherein, the first reflection object 2 is chosen as lampshade, and the first reflection object 2 equally can also can play reflected light for other
The object of line.It is understood that the first reflection object 2, the shape of the reflection object 4 of fluorescent film 3, second can be according to actual need
It is that arc, cross section are square structure (for example, as shown in Figure 5) etc. to ask and be set to longitudinal section, with preferably meet it is actual should
With.
Other of the LED illumination lamp 100 of adjustable color according to embodiments of the present invention are constituted and operated for this area
All it is known for those of ordinary skill, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of adjusting method of LED illumination light color temperature, it is characterised in that comprise the following steps：
Step S1：Choose blue light LED light source and fluorescent film；
Step S2：A part of blue light for controlling the blue light LED light source to send contacts to produce white light with fluorescent film；
Step S3：LED illumination described in another part blue light output that the white light and the blue light LED light source are sent
Light, wherein, the ratio between energy by adjusting the white light and another part blue light, to adjust the color of the LED illumination light
Temperature.
2. the adjusting method of LED illumination light color temperature according to claim 1, it is characterised in that the blue light LED light source is
One.
3. the adjusting method of LED illumination light color temperature according to claim 1, it is characterised in that in step sl will be described
Fluorescent film is covered on the first reflection object, sets second to reflect object between the blue light LED light source and the fluorescent film；
In the step S2, another part blue light illumination that the blue light LED light source is sent is controlled to second reverberation
Body；
In the step S3, the blue light of the white light of the described first reflection object reflection and the second reflection object reflection is mixed
Close.
4. the adjusting method of LED illumination light color temperature according to claim 3, it is characterised in that the second reflection object
Loophole is provided with to cause a part of blue light that the blue light LED light source is sent to be irradiated to the fluorescence through the loophole
On film.
5. the adjusting method of the LED illumination light color temperature according to claim 3 or 4, it is characterised in that in step s3, leads to
Cross the ratio between energy of the irradiated area adjustment white light for adjusting the fluorescent film and another part blue light.
6. the adjusting method of LED illumination light color temperature according to claim 1, it is characterised in that the fluorescent film is provided with
Yellow fluorescent powder, by adjusting the thickness and/or concentration of the yellow fluorescent powder to adjust the energy of the white light.
7. a kind of LED illumination lamp of adjustable color, it is characterised in that including：
Blue light LED light source；
First reflection object, the surface of the direction blue light LED light source of the first reflection object is reflecting surface, the reflection
Covered with fluorescent film on face；
Second reflection object, the second reflection object is located between the blue light LED light source and the fluorescent film, the blue light
A part of blue light illumination that LED/light source is sent is to the fluorescent film and another part blue light illumination to the described second reflection object
On.
8. the LED illumination lamp of adjustable color according to claim 7, it is characterised in that the second reverberation body phase pair
The removable irradiated area to adjust the fluorescent film of fluorescent film.
9. the LED illumination lamp of adjustable color according to claim 7, it is characterised in that set on the second reflection object
There is loophole with so that a part of blue light that the blue light LED light source is sent is irradiated to the fluorescent film through the loophole
On.
10. the LED illumination lamp of adjustable color according to claim 7, it is characterised in that the second reflection object is anti-
Penetrate mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657876.7A CN107327801A (en) | 2017-08-03 | 2017-08-03 | The adjusting method of LED illumination light color temperature and the LED illumination lamp of adjustable color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657876.7A CN107327801A (en) | 2017-08-03 | 2017-08-03 | The adjusting method of LED illumination light color temperature and the LED illumination lamp of adjustable color |
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Family
ID=60225222
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| CN201710657876.7A Pending CN107327801A (en) | 2017-08-03 | 2017-08-03 | The adjusting method of LED illumination light color temperature and the LED illumination lamp of adjustable color |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108305A1 (en) * | 2009-03-26 | 2010-09-30 | Yung Pun Cheng | Led lighting lamp |
| CN102084172A (en) * | 2008-07-07 | 2011-06-01 | 奥斯兰姆有限公司 | Radiation-emitting apparatus |
-
2017
- 2017-08-03 CN CN201710657876.7A patent/CN107327801A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102084172A (en) * | 2008-07-07 | 2011-06-01 | 奥斯兰姆有限公司 | Radiation-emitting apparatus |
| WO2010108305A1 (en) * | 2009-03-26 | 2010-09-30 | Yung Pun Cheng | Led lighting lamp |
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