CN106989341A - Colour mixture temperature car headlight device design method - Google Patents
Colour mixture temperature car headlight device design method Download PDFInfo
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- CN106989341A CN106989341A CN201710279933.2A CN201710279933A CN106989341A CN 106989341 A CN106989341 A CN 106989341A CN 201710279933 A CN201710279933 A CN 201710279933A CN 106989341 A CN106989341 A CN 106989341A
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- lamp
- lamp body
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- light source
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Classifications
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
-
- 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
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
Abstract
The present invention discloses colour mixture temperature car headlight device design method, belongs to technical field of lighting fixtures, including lamp design method, light source design method, reflector design method, tauninatox design method.The luminaire includes mounting bracket, locating ring, sleeve pipe, radiator, lamp body and reflector.Lamp body is fixed by mounting bracket, mounting bracket is fixedly connected by locating ring with sleeve pipe, radiator is directly connected through sleeve pipe, locating ring, mounting bracket with lamp body heat-conducting plate, while lamp body power supply control wire is distributed with radiator, connection is fixed on the positioning in the light source mounting hole of locating ring and emitter.By arrangement position and the installation site of LED lamp of improving LED/light source, the problem of solving automotive lighting device efficient colour mixture temperature, to provide optimal illumination colour rendering index, light efficiency, transmission and visual comfort, driven for driving driver safety and effective guarantee is provided.
Description
Technical field
The invention belongs to technical field of lighting fixtures, it is related to lighting apparatus for vehicle, especially automotive mixed colour temperature luminaire
And its design method, for improving automotive lighting device colour rendering index and delivery capabilities under complicated light efficiency background, enhancing driving peace
Quan Xing.
Background technology
In recent years, semiconductor light-emitting-diode（Abbreviation LED）Simple with self structure, small volume, operating current is small, uses
Convenient, low cost and other advantages are widely used in electro-optical system.LED is substantially that the chip of one piece of very little is encapsulated in
It is very light so it is very small inside epoxy resin, for automobile lighting system, during automobile-used lighting system is automobile
Indispensable pith, its major function is to provide effective illuminating effect when driving for driver, especially
In complex background（For example bad weather circumstances such as haze, heavy rain or night dense fog）It is lower that effective lighting effect is provided, be not only
Driver provides good sight effect, is also that the pedestrian in front of driver or vehicle provide warning.
The nearest of " high power " LED shows very high luminous flux, can be by single led rather than bulb
For lighting use, and LED can send multiple color light according to material difference, and color can be realized in automotive lighting by applying
Temperature mixing, due to driver's difference characteristic sensitive to different-colour, the fatiguability under single colour temperature for a long time, accordingly, it would be desirable to
It is that driver carries to good lighting effect is provided in driving conditions with light intensity, the automobile lighting system of colour temperature regulatory function
Shone for being adapted to oneself color temperature light, greatly ensure traffic safety and comfortableness.
Because the work electrical parameter of LED lamp bead operating ambient temperature and LED lamp bead can influence LED illuminator light decay,
Therefore, by improving LED automobile illumination device design structure, use requirement of the automotive lighting device to efficient colour mixture temperature is met.
The content of the invention
The technical problem to be solved in the present invention is：Colour mixture temperature car headlight device design method is provided, by improving LED light
The arrangement position in source and the installation site of LED lamp, the problem of solving automotive lighting device efficient colour mixture temperature, to provide optimal light
According to colour rendering index, light efficiency, transmission and visual comfort, driven for driving driver safety and effective guarantee is provided.
Technical scheme is as follows：
Colour mixture temperature car headlight device design method, the lighting device includes mounting bracket, locating ring, sleeve pipe, radiator, lamp body
And reflector.Lamp body is fixed by mounting bracket, and mounting bracket is fixedly connected by locating ring with sleeve pipe, and radiator passes through set
Pipe, locating ring, mounting bracket are directly connected with lamp body heat-conducting plate, while lamp body power supply control wire is distributed with radiator, are positioned
Connection is fixed on the positioning in the light source mounting hole of ring and emitter.
Further, lamp body also includes heat-conducting plate, substrate and light source, and light-source encapsulation has two kinds, LED round ends lamp bead and LED
Tack lamp bead, and light source color temperature is divided into warm white color temperature light sources and high color temperature light source.Warm white colour temperature light source color temperature be 2500K ~
3300K（With yellow white light）, high color temperature light source colour temperature is 5000K ~ 6500K（With blue white light）.
And or, lamp body is divided into LED round end lamp bead lamp bodies and LED tack lamp bead lamp bodies according to light source species,
On each piece of substrate of LED round end lamp bead lamp bodies install one or plurality of LEDs round end lamp bead, LED tack lamp bead lamp bodies it is each
Uniform multiple LED tack lamp beads in an array manner on block substrate.
And or, lamp body is designed as rectangular block lamp body and cylinder lamp body, rectangular block lamp body according to the shape of substrate
The side wall of mounting bracket is may be mounted at, cylinder lamp body may be mounted at the top of mounting bracket.
And or, lamp body is designed as light-guiding pillar lamp body and close to sources lamp body according to light source present position, light source with
What luminous position was separated is fixed together as close to sources lamp body for light-guiding pillar lamp body, light source and luminous position.
Further, reflection phosphor bodies are lamp bowl structure, are designed as two kinds of structures, respectively single light source reflector and multiple light courcess
Reflector.
Further, at single light source reflector design light source mounting hole one, positioned at reflector bottom center.
Further, multiple light courcess reflector design light source mounting hole is everywhere, at bottom center one main light source mounting hole, instead
Secondary light source mounting hole at beam lamp bowl wall uniform three.
It is preferred that, design and installation LED tack lamp beads on the substrate of rectangular block lamp body can at least pacify along zig direction
Two row's LED tack lamp beads are filled, the number of single LED tack lamp bead carries out calculating determination according to rectangular block lamp body general power.
Further, the LED tack lamp beads of design and installation have a variety of patterns on the substrate of rectangular block lamp body, to ensure low color
Temperature and the abundant mixed light of high color temperature, pattern include but is not limited to following three kinds：Single warm white colour temperature LED tack lamp bead and single high color
Warm LED tack lamp bead interval, single-row warm white colour temperature LED tack lamp bead and single-row high color temperature LED tack lamp beads interval, single warm white
Colour temperature LED tack lamp bead and single high color temperature LED tack lamp beads interval.
It is preferred that, design and installation LED tack lamp beads on the substrate of cylinder lamp body, LED tack lamp beads are square on substrate
Array arrangement, specific LED tack lamp bead quantity carries out calculating by cylinder lamp body power and determined.
Further, the LED tack lamp beads of design and installation have a variety of patterns on the substrate of cylinder lamp body, to ensure warm white
Temperature and the abundant mixed light of high color temperature, pattern include but is not limited to following three kinds：Single warm white colour temperature LED tack lamp bead and single high color
Warm LED tack lamp bead interval, single warm white colour temperature LED tack lamp bead and single high color temperature LED tack lamp beads interval, warm white colour temperature
Diagonal distribution of the LED tack lamp bead along positive direction array arrangement.
According to the size of reflector light source mounting hole, mounting bracket designs two kinds of structures, and a kind of section is square, another
It is that straight line or so is circular arc above and below section.
Further, section is the mounting bracket of square, can be respectively mounted rectangular block lamp body at one, structure in four mounting surfaces
Into four sides lamp body luminaire.
Further, above and below section it is mounting bracket that straight line or so is circular arc, is up and down mounting surface, is respectively mounted one piece of rectangle
Block lamp body, constitutes two sides lamp body luminaire.
Further, the top of mounting bracket can install cylinder lamp body, and only install cylinder lamp body structure on the top of mounting bracket
Into one side lamp body luminaire.
Preferably, one side lamp body luminaire selection section is the mounting bracket of positive direction, can be in four installations of mounting bracket
Face is respectively mounted rectangular block lamp body, constitutes five face lamp body luminaires.
It is the mounting bracket that straight line or so is circular arc above and below one side lamp body luminaire selection interface as preferential, can be in peace
The mounting surface shelved is respectively mounted rectangular block lamp body, constitutes three face lamp body luminaires.
Requirement according to luminaire to light source, the light source mounting hole of single light source reflector can be illuminated from following five kinds of lamp bodies
Optional one is installed in device, and five kinds of lamp body luminaires include：One side lamp body luminaire, two sides lamp body luminaire, three face lamp bodies shine
Funerary objects, four sides lamp body luminaire, five face lamp body luminaires.
Further, the main light source mounting hole of multiple light courcess reflector can be installed optional one from five kinds of lamp body luminaires,
Secondary light source mounting hole need to select same lamp body luminaire at three.
Preferably, secondary light source mounting hole may be used also in addition to it can install lamp body luminaire at multiple light courcess reflector three
To install light-guiding pillar lamp body luminaire.
Preferably, to improve low colour temperature and the abundant light mixing effect of high color temperature, can be by the LED tack of multiple matrix distributions
Lamp bead is directly encapsulated into glass dome structure.
The invention has the advantages that：
（1）There is provided including but not limited to rectangular block lamp body, cylinder lamp body, list for the colour mixture temperature car headlight device design method
Light source reflector, multiple light courcess reflector, the construction design method of lamp body LED tack lamp bead patterns and five kinds of lamp body luminaires,
It is able to ensure that the realization and application of colour mixture temperature car headlight device；
（2）Designed colour mixture temperature car headlight device, improves illumination colour rendering index, light efficiency, transmission, visual comfort, is
Pedestrian and vehicle early warning in front of traveling, to adapt to the lighting environment of complexity, improve security of the automobile in illumination traveling；
（3）Designed colour mixture temperature car headlight device, simple in construction, easy for installation, internal structure can be according to installing space
Match or adjust accordingly, therefore its is practical, it is applied widely.
Brief description of the drawings
Fig. 1 four sides lamp body illuminator structure schematic diagram.
Fig. 2 two sides lamp body illuminator structure schematic diagram.
Fig. 3 one side lamp body illuminator structure schematic diagrames.
Fig. 4 lamp body structure schematic diagrames.
The rectangular block lamp body structure schematic diagram of tri- kinds of patterns of Fig. 5.
The cylinder lamp body structure schematic diagram of tri- kinds of patterns of Fig. 6.
Tri- kinds of pattern single light source illuminator structure schematic diagrames of Fig. 7.
Fig. 8 multiple light courcess reflector positive structure schematics.
Fig. 9 multiple light courcess reflector structure schematic diagrams.
Figure 10 LED tack lamp bead encapsulating structures.
In figure：M-1 M type mounting brackets；M-2 M type locating rings；M-3 M molded cannulas；M-4 M type radiators；N-1 N-types are pacified
Shelve；N-2 N-type locating rings；N-3 N-type sleeve pipes；N-4 N-type radiators；N-6 N-types end cap；The T-shaped mounting brackets of T-1；T-2 T
Type locating ring；The T-shaped sleeve pipes of T-3；The T-shaped radiators of T-4；T-6 cylinder lamp bodies；T-61 cylinder lamp body heat-conducting plates；T-62 cylinders
Lamp body substrate；5 rectangular block lamp bodies；7 single light source reflectors；8 multiple light courcess reflectors；50 LED tack lamp beads；51 rectangular blocks
Lamp body heat-conducting plate；52 rectangular block lamp body substrates；53 optical glass hemisphere；501 warm white colour temperature LED tack lamp beads；502 high colors
Warm LED tack lamp bead；N-0 N-type luminaires；M-0 M type luminaires；The T-shaped luminaires of T-0.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Lighting device described in colour mixture temperature car headlight device design method, agent structure includes mounting bracket, locating ring, set
Pipe, radiator, lamp body and reflector.Lamp body is fixed by mounting bracket, and mounting bracket is fixedly connected by locating ring with sleeve pipe,
Radiator is directly connected through sleeve pipe, locating ring, mounting bracket with lamp body heat-conducting plate, is powered control while lamp body is distributed with radiator
Connection is fixed on the positioning in the light source mounting hole of wire processed, locating ring and emitter.
LED/light source involved in the present invention, which is encapsulated, has two kinds, LED round ends lamp bead and LED tack lamp beads, in the present embodiment
Light source be described by taking LED tack lamp bead light sources as an example, according to being set in terms of the structure of lighting device, power in actual production
Parameter request is counted, LED round end lamp beads light source can directly substitute LED tack lamp bead light sources.
Embodiment 1
As shown in Figure of description 1, four sides lamp body luminaire is M type luminaire M-0, including M type mounting bracket M-1, M type locating rings
M-2, M molded cannula M-3, M type radiator M-4, rectangular block lamp body 5.
As shown in Figure of description 2, two sides lamp body luminaire is N-type luminaire N-0, including N-type mounting bracket N-1, N-type are fixed
Position ring N-2, N-type sleeve pipe N-3, N-type radiator N-4, rectangular block lamp body 5, N-type end cap N-6.
As shown in Figure of description 3, one side lamp body luminaire is T-shaped luminaire T-0, including T-shaped mounting bracket T-1, T-shaped fixed
Position ring T-2, T-shaped sleeve pipe T-3, T-shaped radiator T-4, cylinder lamp body T-6, cylinder lamp body substrate T-62, cylinder lamp body heat-conducting plate
T-61, wherein cylinder lamp body substrate T-62 outer faces install LED tack lamp bead 50.
As shown in Figure of description 4, rectangular block lamp body 5 is by LED tack lamp bead 50, rectangular block lamp body heat-conducting plate 51 and rectangle
Block lamp body substrate 52 is constituted.Wherein, the colour temperature of LED tack lamp bead 50 is divided into warm white colour temperature LED tack lamp bead 501 and high color temperature LED
Tack lamp bead 502, the colour temperature of warm white colour temperature LED tack lamp bead 501 is 2500K ~ 3300K（With yellow white light）, high color temperature LED tack
Lamp bead colour temperature is 5000K ~ 6500K（With blue white light）, as shown in Figure of description 5, and according to low colour temperature LED tack lamp beads
501 and branch's situation of high color temperature LED tack lamp bead 502 be divided into：Single warm white colour temperature LED tack lamp bead 501 and single high color
Warm LED tack lamp bead 502 is at intervals of 5-B type matrix Ls ED, and single warm white colour temperature LED tack lamp bead 501 and single-row high color temperature LED are flat
Head lamp pearl 502 is at intervals of 5-C type matrix Ls ED, single warm white colour temperature LED tack lamp bead 501 and single high color temperature LED tack lamp beads
502 at intervals of 5-A type matrix Ls ED.
As shown in Figure of description 6, LED tack lamp bead 50 is installed in cylinder lamp body substrate T-62 outer faces, and according to warm
Branch's situation of white temperature LED tack lamp bead 501 and high color temperature LED tack lamp bead patch 502 is divided into：Single warm white colour temperature LED is put down
Head lamp pearl 501 and single high color temperature LED tack lamp bead 502 are at intervals of 6-B type matrix Ls ED, single warm white colour temperature LED tack lamp beads
501 and single high color temperature LED tack lamp bead 502 at intervals of 6-A type matrix L ED, warm white colour temperature LED tack lamp bead 501 is along pros
6-C type matrix Ls ED is distributed as to the diagonal of array arrangement.
As shown in Figure of description 7, N-type luminaire N-0, M type luminaire M-0, T-shaped luminaire T-0 are arranged on single light source
In reflector 7, the car headlight device of formation.
As shown in Figure of description 8 and accompanying drawing 9, multiple light courcess reflector 8 installs the structural representation of all kinds of luminaires.
Embodiment 2
As shown in Figure of description 4 and accompanying drawing 5, the rectangular block lamp body substrate 52 of rectangular block lamp body 5 installs LED tack lamp bead 50,
Rows of LED tack lamp bead 50 is installed along the length direction of rectangular block lamp body substrate 52, set according to the general power of rectangular block lamp body 5
Count the row of LED tack lamp bead 50, two rows, three rows or more, the number foundation rectangular block of same single LED tack lamp bead 50
The power parameter and parameters of structural dimension of lamp body 5 are determined.
As shown in Figure of description 6, design and installation LED tack lamp beads on cylinder lamp body T-6 cylinder lamp body substrate T-62
50, LED tack lamp beads 50 quadrate array on cylinder lamp body substrate T-62 is arranged, specific LED tack lamp bead tack lamp bead number
Amount carries out calculating by cylinder lamp body T-6 design powers and physical dimension and determined
Embodiment 3
It is the N-type mounting bracket N-1 that straight line or so is circular arc above and below T-shaped luminaire T-0 selections section, can be in N-type mounting bracket N-1
Mounting surface be respectively mounted rectangular block lamp body 5, constitute three face lamp body luminaires（Not shown in figure）.
Type luminaire T-0 selections section is the M type mounting bracket M-1 of positive direction, can be in tetra- installations of M type mounting brackets M-1
Face is respectively mounted rectangular block lamp body 5, constitutes five face lamp body luminaires（Not shown in figure）.
Embodiment 4
The light source mounting hole of single light source reflector 7 can be installed optional one from following five kinds of lamp body luminaires, five kinds of lamp bodies
Luminaire includes：T-shaped luminaire T-0, N-type luminaire N-0, M type luminaire M-0, three face lamp body luminaires, five face lamp body illuminations
Device.
The main light source mounting hole of multiple light courcess reflector 8 can be installed optional one from five kinds of lamp body luminaires, auxiliary at three
Help light source mounting hole to select same lamp body luminaire, or the luminaire of light guide column structure can also be installed（Do not show in figure
Go out）.
Embodiment 5
To improve low colour temperature and the abundant light mixing effect of high color temperature, the LED tack lamp bead 50 of multiple matrix distributions can directly be sealed
In the structure of optical glass hemisphere 53.The LED tack lamp bead 50 above whole substrate 52 is encapsulated in an optics during encapsulation
In glass dome 53.
Embodiment described above be only embodiments of the present invention are described, not to the present invention design and
Scope is defined.On the premise of design concept of the present invention is not departed from, this area ordinary person is to technical scheme
The all variations and modifications made, all should drop into protection scope of the present invention, the scope of the present invention by appended claims and
It is not that described above is limited, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included
In the present invention, any reference in claim should not be considered as to the claim involved by limitation.
Claims (6)
1. colour mixture temperature car headlight device design method, the lighting device includes mounting bracket, locating ring, sleeve pipe, radiator, lamp
Body and reflector, it is characterised in that including lamp design method, light source design method, reflector design method, tauninatox design
Method, wherein；Lamp design method：The lamp body is divided into LED round end lamp bead lamp bodies and LED tack lamps according to light-source encapsulation species
On pearl lamp body, each piece of substrate of LED round end lamp bead lamp bodies install one or plurality of LEDs round end lamp bead, LED tack lamp bodies it is every
Uniform multiple LED tack lamp beads in an array manner on one piece of substrate；The lamp body is divided into rectangular block lamp body according to substrate shape
（5）With cylinder lamp body（T-6）, the rectangular block lamp body（5）Installed in the side wall of mounting bracket, the cylinder lamp body（T-6）Install
On the top of mounting bracket；The lamp body is designed as light-guiding pillar lamp body and close to sources lamp body, light source and hair according to light source present position
What optical position was separated is fixed together as close to sources lamp body for light-guiding pillar lamp body, light source and luminous position；Light source design method：Light
Source has two kinds, respectively LED round ends lamp bead and LED tack lamp beads（50）, the LED tack lamp bead（50）Colour temperature is divided into warm white
Colour temperature LED tack lamp beads（501）With high color temperature LED tack lamp beads（502）；The rectangular block lamp body（5）Rectangular block lamp body base
Plate（52）The LED tack lamp beads of upper installation（50）With a variety of patterns, including but not limited to single warm white colour temperature LED tack lamp beads
（501）With single high color temperature LED tack lamp beads（502）At intervals of 5-B type matrix Ls ED, single-row warm white colour temperature LED tack lamp beads
（501）With single-row high color temperature LED tack lamp beads（502）At intervals of 5-C type matrix Ls ED, single warm white colour temperature LED tack lamp beads
（501）With single high color temperature LED tack lamp beads（502）At intervals of 5-A type matrix Ls ED；The cylinder lamp body（T-6）Cylinder lamp
Structure base board（T-62）The LED tack lamp beads of upper installation（50）With a variety of patterns, including but not limited to single warm white colour temperature LED is put down
Head lamp pearl（501）With single high color temperature LED tack lamp beads（502）Interval, single warm white colour temperature LED tack lamp beads（501）And list
Individual high color temperature LED（502）Tack lamp bead interval, warm white colour temperature LED tack lamp beads（501）Along the diagonal of positive direction array arrangement
Distribution；Reflector design method：The reflector is designed as two kinds of structures, respectively single light source reflector（7）It is anti-with multiple light courcess
Beam（8）；The single light source reflector（7）Design at light source mounting hole one, positioned at reflector bottom center；The multiple light courcess
Reflector（8）Design light source mounting hole everywhere, be at main light source mounting hole, reflector lamp bowl wall uniform three at bottom center one
Secondary light source mounting hole；Tauninatox design method：Section is square M type mounting brackets（M-1）, pacify respectively in four mounting surfaces
Fill rectangular block lamp body at one（5）, constitute M type luminaires（M-0）；It is the N-type mounting bracket that straight line or so is circular arc above and below section（N-
1）, it is up and down mounting surface, is respectively mounted one piece of rectangular block lamp body（5）, constitute N-type luminaire（N-0）；The top of the mounting bracket
Cylinder lamp body is installed（T-6）, and cylinder lamp body only is installed on the top of mounting bracket（T-6）Constitute T-shaped luminaire（T-0）；The T
Type luminaire（T-0）Use M type mounting brackets（M-1）, in M type mounting brackets（M-1）Four mounting surfaces are respectively mounted rectangular block lamp body
（5）, constitute five face lamp body luminaires；The T-shaped luminaire
（T-0）Using N-type mounting bracket,（N-1）, in N-type mounting bracket（N-1）Two mounting surfaces are respectively mounted rectangular block lamp body（5）,
Constitute three face lamp body luminaires.
2. colour mixture temperature car headlight device design method according to claim 1, it is characterised in that：The warm white colour temperature
LED tack lamp beads（501）Colour temperature is 2500K ~ 3300K（With yellow white light）, high color temperature LED tack lamp beads（502）Colour temperature is
5000K~6500K（With blue white light）.
3. colour mixture temperature car headlight device design method according to claim 1, it is characterised in that：The rectangular block lamp body
（5）Rectangular block lamp body substrate（52）Upper design and installation LED tack lamp beads（50）, along rectangular block lamp body substrate（52）Length direction
Two row's LED tack lamp beads can be at least installed（50）, single LED tack lamp bead（50）Number according to rectangular block lamp body（5）Work(
Rate parameter is determined.
4. colour mixture temperature car headlight device design method according to claim 1, it is characterised in that：The cylinder lamp body
（T-6）Cylinder lamp body substrate（T-62）Upper design and installation LED tack lamp beads（50）, LED tack lamp beads（50）In cylinder lamp body
Substrate（T-62）Upper quadrate array arrangement, specific LED tack lamp bead（50）Quantity is by cylinder lamp body（T-6）Power parameter is true
It is fixed.
5. colour mixture temperature car headlight device design method according to claim 1, it is characterised in that：The multiple light courcess reflection
Body（8）Secondary light source mounting hole can also install light-guiding pillar lamp body photograph in addition to it can install same lamp body luminaire at three
Funerary objects.
6. colour mixture temperature car headlight device design method according to claim 1, it is characterised in that：The substrate（52）On
The LED tack lamp beads of face matrix distribution（50）It is encapsulated in same optical glass hemisphere（53）It is interior.
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| CN201710279933.2A CN106989341A (en) | 2017-04-26 | 2017-04-26 | Colour mixture temperature car headlight device design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110265386A (en) * | 2019-06-06 | 2019-09-20 | 浙江阳光美加照明有限公司 | A kind of LED light of the color enhancement of adjustable color |
| EP3894741B1 (en) * | 2018-12-13 | 2023-02-15 | Lumileds LLC | Automotive headlight with dual correlated colour temperature |
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