CN107420748B - The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns - Google Patents
The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns Download PDFInfo
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- CN107420748B CN107420748B CN201710612380.8A CN201710612380A CN107420748B CN 107420748 B CN107420748 B CN 107420748B CN 201710612380 A CN201710612380 A CN 201710612380A CN 107420748 B CN107420748 B CN 107420748B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
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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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- 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]
-
- 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]
- F21Y2115/15—Organic light-emitting diodes [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The present invention provides the luminescent device of a kind of adjustable color temperature and colour rendering index, the lamps and lanterns with colour temperature and the adjustable luminescent device of colour rendering index and the colour temperatures and colour rendering index method that adjust OLED luminescent device, luminescent device includes OLED device, LED component, the LED component and the OLED device are arranged side by side, and the LED component is consistent with the light direction of the OLED device；And control circuit, the control circuit adjust the luminous intensity of the LED component.The luminescent device of adjustable color temperature and colour rendering index of the invention, by composite LED device and OLED device can issue display index mostly 90 or more high colour developing recombined white light, and the continuously adjustable of colour temperature and colour rendering index can be achieved by the adjusting to light intensity in LED component.
Description
Technical field
This application involves lighting source, especially a kind of colour temperature and the adjustable luminescent device of colour rendering index, have colour temperature and
The lamps and lanterns of the adjustable luminescent device of colour rendering index and the colour temperature and colour rendering index method for adjusting OLED luminescent device.
Background technique
In OLED device, for a certain specific device architecture, the Optical Parametrics such as luminescent spectrum, colour temperature, colour rendering index
Number is all fixed and invariable；And in practical applications, for different environment, different crowds often to illumination and display lamp
The colour temperature or colour rendering index of equipment have different needs.
It is in the industry to OLED device structure using more solution for the adjusting of the colour temperature and development index of OLED
It is adjusted, mainly changes its luminescent layer and luminescent material.
In view of this, it is necessary to provide the luminescent device of a kind of adjustable color temperature and colour rendering index, there is colour temperature and colour developing to refer to
The lamps and lanterns of the adjustable luminescent device of number and the colour temperature and colour rendering index method for adjusting OLED luminescent device, are asked with solving above-mentioned technology
Topic.
Summary of the invention
One of to solve the above-mentioned problems, present applicant proposes a kind of colour temperature and the adjustable luminescent devices of colour rendering index, tool
There are the lamps and lanterns of colour temperature and the adjustable luminescent device of colour rendering index and adjusts the colour temperature and colour rendering index method of OLED luminescent device.
To achieve the goals above, the application provides the luminescent device of a kind of adjustable color temperature and colour rendering index, including OLED
Device, LED component, the LED component and the OLED device are arranged side by side, and the LED component goes out with the OLED device
Light direction is consistent；And control circuit, the control circuit adjust the luminous intensity of the LED component.
As a further improvement of the present invention, the luminescent device includes several LED components, several OLED devices
Part, and several LED components side by side and are arranged alternately with several OLED device.
As a further improvement of the present invention, with the LED device that at least two wavelength are different around the OLED device
Part, the control circuit optionally control the luminous intensity of the LED component of any wavelength.
As a further improvement of the present invention, the light emission side of OLED and LED component is equipped with light-mixed layer.
As a further improvement of the present invention, the light emission color temperature range of the luminescent device is between 3600K~5000K,
Colour rendering index is 87 or more.
For achieving the above object, the present invention also provides a kind of adjustable color temperature and the lamps and lanterns of colour rendering index, comprising described
Luminescent device.
For achieving the above object, the present invention also provides it is a kind of adjust OLED device colour temperature and colour rendering index method,
It include: offer LED component, the LED component and the OLED device are arranged side by side, the LED component and the OLED device
Light direction it is consistent；Control circuit is provided, adjusts the current value of the LED component, by the control circuit to adjust
State the colour temperature and colour rendering index of OLED device.
As a further improvement of the present invention, with the LED device that at least two wavelength are different around the OLED device
Part, the control circuit optionally control the current value of the LED component of any wavelength.
As a further improvement of the present invention, the control circuit control the luminous intensity of the LED component 0%~
It is continuously adjusted between 100%.
As a further improvement of the present invention, LED component luminescent spectrum is the OLED device within the scope of 400nm~500nm
Part luminescent spectrum is within the scope of 450nm~760nm.
Beneficial effects of the present invention: the luminescent device of adjustable color temperature and colour rendering index of the invention passes through composite LED device
The recombined white light that display index mostly develops the color in 90 or more height can be issued with OLED device, and by light intensity in LED component
Adjusting the continuously adjustable of colour temperature and colour rendering index can be achieved.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the luminescent device of adjustable color temperature and colour rendering index of the invention；
Fig. 2 is the spectrogram that the white light that OLED device shown in FIG. 1 issues corresponds to luminous intensity；
Fig. 3 (a) is that the 456nm blue light of the sending of LED component corresponds to the schematic diagram of luminous intensity；
Fig. 3 (b) is that the 456nm blue light in Fig. 3 (a) is compound white after compound with the white light of OLED device under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 3 (c) is the spectrogram in the wavelength of the middle section Fig. 3 (b)；
Fig. 4 (a) is that the 458nm blue light of the sending of LED component corresponds to the schematic diagram of luminous intensity；
Fig. 4 (b) is that the 458nm blue light in Fig. 4 (a) is compound white after compound with the white light of OLED device under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 4 (c) is the spectrogram in the wavelength of the middle section Fig. 4 (b)；
Fig. 5 (a) is that the 460nm blue light of the sending of LED component corresponds to the schematic diagram of luminous intensity；
Fig. 5 (b) is that the 460nm blue light in Fig. 5 (a) is compound white after compound with the white light of OLED device under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 5 (c) is the spectrogram in the wavelength of the middle section Fig. 5 (b)；
Fig. 6 (a) is the arrangement schematic diagram of LED component and OLED device in luminescent device of the invention；
Fig. 6 (b) is another arrangement schematic diagram of LED component and OLED device in luminescent device of the invention.
Fig. 6 (c) is another arrangement schematic diagram of LED component and OLED device in luminescent device of the invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in Fig. 1, Fig. 6 (a), Fig. 6 (b), the luminescent device of adjustable color temperature of the invention and colour rendering index includes OLED
Device, LED component, control circuit and the shell being arranged in parallel with the OLED device.The LED component and the OLED device
It is arranged side by side, the LED component is consistent with the light direction of the OLED device, and the light and OLED device that LED component issues are sent out
The white light penetrated is compound, ultimately forms recombined white light.
Further, the light emission side of OLED and LED component be equipped with light-mixed layer, such as diffusion sheet, prismatic lens optical diaphragm or
Light mixing coating, so that the photochromic of the luminescent device is uniformly mixed.
OLED device shines in 300nm~1500nm range, and color can be other kinds for various monochromatic light or complex light etc.
The light of color；Preferably, the luminescent spectrum of the OLED device also can choose as within the scope of 450nm~760nm.LED component
For luminescent spectrum within the scope of 400nm~500nm, color can be the light of the other kinds colors such as various monochromatic light or complex light.LED
White light is formed after the light of device and the photoreactivation of OLED device.
The OLED device, the anode of the LED component, the setting position of cathode are unlimited, two electrodes can along with
The vertical direction of the light direction of device is divided into the two sides that device is oppositely arranged, its current direction and light emission direction hang down at this time
Directly；Or two electrodes can be divided into the two sides of device along the light direction of device, but be transparent close to the electrode of light emission side
Electrode.Anode, the cathode of LED component are omitted in attached drawing 1.
The luminescent device includes several LED components, several OLED device, and several LED components with
Several OLED device side by side and are arranged alternately；The arrangement mode of the LED component and the OLED device is unlimited, preferably
Two kinds of luminescent devices are uniformly distributed, and as shown in Fig. 6 (a), Fig. 6 (b), the recombined white light that each region issues is uniform.
The control circuit is located at the non-light emission side of the LED component and the OLED device, passes through the control circuit
The current value of the LED component is adjusted to adjust its luminous intensity between the 0%~100% of maximum emission intensity and change, from
And reach the optical parameter for adjusting recombined white light, obtain the white light of high colour developing.It is of course also possible to simultaneously by the control circuit
The electric current of LED component and OLED device is adjusted, to be reached by the luminous intensity for adjusting LED component and OLED device
Adjust the optical parameter of recombined white light.
Further, with the LED component that at least two wavelength are different, the control circuit around the OLED device
The current value of the LED component of any wavelength is optionally controlled, the size of the current value can be from 0%~100% model
Interior step-less adjustment is enclosed, the colour temperature and colour rendering index of the OLED luminescent device are adjusted so as to the blue light using different wave length,
Reach the high colour developing white light of different demands.
OLED device white-light spectrum corresponds to luminous intensity as shown in Fig. 2, the optics simulated according to OLED white-light spectrum
Parameter are as follows:
| Optical parameter | Brightness (cd/m2) | Colour temperature (K) | Colour rendering index | Chromaticity coordinates |
| White light | 1072 | 3563 | 89.9 | (0.4018,0.3888) |
The present invention is based on the structure of above-mentioned luminescent device, the side of a kind of colour temperature for adjusting OLED device and colour rendering index is provided
Method, specifically: LED component is provided, the LED component and the OLED device are arranged side by side, the LED component and the OLED
The light emission direction of device is consistent；Control circuit is provided, the current value of the LED component is adjusted by control circuit, to adjust
The luminous intensity of the LED component is to adjust the colour temperature and colour rendering index of the OLED luminescent device.
When the luminescent device includes several LED components and several OLED device, around the OLED device
The effect of LED component meeting synergic adjustment white light.
Further, with the LED component that at least two wavelength are different, the control circuit around the OLED device
The current value of any LED component is controlled, optionally so as to adjust the OLED using the blue light of different wave length
The colour temperature and colour rendering index of luminescent device reach the high colour developing white light of different demands.
It will illustrate the colour temperature and colour rendering index method that adjust OLED device by several specific embodiments below.
Embodiment 1
Keep white-light spectrum and its luminous intensity of OLED device constant, adjusting the wavelength that LED component issues is 456nm blue
The intensity of light keeps blue light compound with OLED white light at different brightnesses, adjusts OLED white light colour temperature and development index to reach
Purpose.Shown in blue light strength such as Fig. 3 (a) that wherein LED component issues, the spectrum of the recombined white light of the blue light of corresponding varying strength
And luminous intensity such as Fig. 3 (b), shown in 3 (c).
The optical parameter obtained according to recombined white light spectral simulation is as shown in the table:
Wherein, 0.1,0.2,04,0.6,0.8,1.0 in Fig. 3 (b), 3 (c) and above table indicates the blue light hair of 458nm
Luminous intensity is respectively the 10% of its maximum emission intensity, and 20%, 40%, 60%, 80%, 100%；" white light+458*0.1 " table
Show: the intensity adjustment of the blue light for the 458nm that LED component is issued is the 10% of its largest light intensity, is then issued with OLED device
White light be compounded to form recombined white light.The meaning expressed by scale parameter in the following drawings and table is same as above, and is repeated no more.
By above table it is found that the raising of the blue light strength with LED component sending, colour temperature gradually rise, and develops the color and refer to
Number first increases to be reduced afterwards, and when blue light strength is 0.4, colour rendering index reaches maximum；User can control blue light according to actual needs
The recombined white light that intensity is needed.
Embodiment 2
Keep white-light spectrum and its luminous intensity of OLED device constant, adjusting the wavelength that LED component issues is 458nm blue
The intensity of light keeps blue light compound with OLED white light at different brightnesses, adjusts OLED white light colour temperature and development index to reach
Purpose.Wherein shown in the blue light strength of the sending of LED component such as Fig. 4 (a), the light of the recombined white light of the blue light of corresponding varying strength
Spectrum and luminous intensity such as Fig. 4 (b), shown in 4 (c).
The optical parameter obtained according to recombined white light spectral simulation is as shown in the table:
By 4 (b), 4 (c) and above table it is found that the raising of the blue light strength with LED component sending, colour temperature gradually rise
Height, and colour rendering index first increases and reduces afterwards, when blue light strength is 0.4, colour rendering index reaches maximum；User can be according to practical need
Control the recombined white light that blue light strength is needed.
Embodiment 3
Keep white-light spectrum and its luminous intensity of OLED device constant, adjusting the wavelength that LED component issues is 460nm blue
The intensity of light keeps blue light compound with OLED white light at different brightnesses, adjusts OLED white light colour temperature and development index to reach
Purpose.Wherein shown in the blue light strength of the sending of LED component such as Fig. 5 (a), the light of the recombined white light of the blue light of corresponding varying strength
Spectrum and luminous intensity such as Fig. 5 (b), shown in 5 (c).
The optical parameter obtained according to recombined white light spectral simulation is as shown in the table:
By 5 (b), 5 (c) and above table it is found that the raising of the blue light strength with LED component sending, colour temperature gradually rise
Height, and colour rendering index first increases and reduces afterwards, when blue light strength is 0.4, colour rendering index reaches maximum；User can be according to practical need
Control the recombined white light that blue light strength is needed.
It, can be to the color of OLED white light by above-mentioned specific embodiment it is found that by the intensity for the blue light for adjusting LED component sending
Mild colour rendering index is adjusted, and it is continuously adjustable between 3600K~5000K to realize colour temperature, and shows index mostly 90
Above high colour developing white light.
Embodiment 4
In the present embodiment, the luminescent device includes several LED components and several OLED device, each described
Include the different LED component of at least two luminous complementary wavelengths around LED component, for example, wavelength be respectively 456nm, 458nm or
The LED component of 460nm.It keeps white-light spectrum and its luminous intensity of the OLED device constant, is selectively adjusted wavelength
The intensity for the blue light that at least one of LED component for 456nm, 458nm or 460nm issues, makes blue light at different brightnesses
It is compound with OLED white light, to achieve the purpose that adjust OLED white light colour temperature and development index.Wherein independent adjusting wavelength is respectively
The luminous intensity of the LED component of 456nm, 458nm, 460nm to the regulating effect of OLED white light respectively with embodiment 1, embodiment
2, embodiment 3 is identical, repeats no more.The luminous intensity of multiple LED components is adjusted, simultaneously to adjust the colour temperature of OLED device and show
Colour index.The luminous strength ratio for adjusting multiple LED components simultaneously, which individually adjusts a LED component, can optimize illumination spectrum, mention
High development properties.
In conclusion the luminescent device of adjustable color temperature and colour rendering index of the invention, passes through composite LED device and OLED device
Part can issue the higher recombined white light of colour rendering index, and pass through the adjusting continuously adjustable OLED device to light intensity in LED component
The reference color temperature for the white light that part issues is between 3600K~5000K, and colour rendering index is 87 or more.
In addition, the present invention also provides a kind of lamps and lanterns with above-mentioned luminescent device, colour temperature and development index can pass through
Above-mentioned adjusting method is adjusted.
Although not each embodiment only includes one only it should be appreciated that this specification is described according to embodiment
Vertical technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should be by specification
As a whole, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiments.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope being not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (8)
1. the luminescent device of a kind of adjustable color temperature and colour rendering index, it is characterised in that: including
OLED device,
LED component, the LED component and the OLED device are arranged side by side, the light out of the LED component and the OLED device
Direction is consistent, with the LED component that at least two wavelength are different around the OLED device；
And control circuit, the control circuit optionally control the luminous intensity of the LED component of any wavelength.
2. the luminescent device of adjustable color temperature according to claim 1 and colour rendering index, it is characterised in that: the luminescent device
Including several LED components, several OLED device, and several LED components and several OLED device are side by side
And it is arranged alternately.
3. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, it is characterised in that: OLED and LED
The light emission side of device is equipped with light-mixed layer.
4. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, it is characterised in that: described to shine
The light emission color temperature range of device is between 3600K~5000K, and colour rendering index is 87 or more.
5. the lamps and lanterns of a kind of adjustable color temperature and colour rendering index, it is characterised in that: include the Claims 1 to 4 any one institute
The luminescent device stated.
6. a kind of colour temperature and colour rendering index method for adjusting OLED device, it is characterised in that:
LED component is provided, the LED component and the OLED device are arranged side by side, the LED component and the OLED device
Light direction is consistent, with the LED component that at least two wavelength are different around the OLED device；
Control circuit is provided, the control circuit optionally controls the current value of the LED component of any wavelength, to adjust
Save the colour temperature and colour rendering index of the OLED device.
7. the colour temperature and colour rendering index method according to claim 6 for adjusting OLED device, it is characterised in that: the control
The luminous intensity of LED component described in circuit control continuously adjusts between 0%~100%.
8. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, or according to as claimed in claim 6
The colour temperature and colour rendering index method of OLED device are adjusted, LED component luminescent spectrum is the OLED within the scope of 400nm~500nm
Device luminescent spectrum is within the scope of 450nm~760nm.
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| CN201710612380.8A CN107420748B (en) | 2017-07-25 | 2017-07-25 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710612380.8A CN107420748B (en) | 2017-07-25 | 2017-07-25 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392961A (en) * | 2011-11-17 | 2012-03-28 | 南京第壹有机光电有限公司 | LED (light emitting diode) and OLED (organic light emitting diode) composite surface luminescent device |
| CN102474932A (en) * | 2009-06-30 | 2012-05-23 | 3M创新有限公司 | White light electroluminescent devices with adjustable color temperature |
| CN104075162A (en) * | 2014-07-04 | 2014-10-01 | 复旦大学 | High-colour-rendering-property white-light LED illumination system with adjustable colour temperature |
-
2017
- 2017-07-25 CN CN201710612380.8A patent/CN107420748B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102474932A (en) * | 2009-06-30 | 2012-05-23 | 3M创新有限公司 | White light electroluminescent devices with adjustable color temperature |
| CN102474932B (en) * | 2009-06-30 | 2015-12-16 | 3M创新有限公司 | There is the white-light electroluminescence device of adjustable color temperature |
| CN102392961A (en) * | 2011-11-17 | 2012-03-28 | 南京第壹有机光电有限公司 | LED (light emitting diode) and OLED (organic light emitting diode) composite surface luminescent device |
| CN104075162A (en) * | 2014-07-04 | 2014-10-01 | 复旦大学 | High-colour-rendering-property white-light LED illumination system with adjustable colour temperature |
| CN104075162B (en) * | 2014-07-04 | 2016-07-13 | 复旦大学 | A kind of White LED with high color rendering property illuminator of adjustable color temperature |
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