CN109307162A - Non-coaxial light mixing device - Google Patents
Non-coaxial light mixing device Download PDFInfo
- Publication number
- CN109307162A CN109307162A CN201711099436.0A CN201711099436A CN109307162A CN 109307162 A CN109307162 A CN 109307162A CN 201711099436 A CN201711099436 A CN 201711099436A CN 109307162 A CN109307162 A CN 109307162A
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- China
- Prior art keywords
- light
- axis
- emitting diode
- mixing
- mixing device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F21K9/20—Light sources comprising attachment means
-
- 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
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/62—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
A kind of non-coaxial light mixing device, with a luminescence unit and an at least light-mixing element, wherein luminescence unit has substrate and multiple light emitting diodes, light-mixing element is polygonal column light guide and has an incidence surface, an X-axis parallel with the multiple lumination of light emitting diode direction can be defined by the central point of incidence surface, and the light-emitting surface of the multiple light emitting diode deviates the plotted point of X-axis and substrate.Therefore, the center in the multiple lumination of light emitting diode face does not correspond to the central point of light-mixing element incidence surface, so that all light that the multiple light emitting diode is emitted do not have the situation along X-axis directive incidence surface central point, thus there is preferable light mixing effect.
Description
Technical field
The present invention relates to a kind of light mixing devices, specifically refer to it is a kind of using multi-color LED as light source, and
Polygon light-guiding pillar of arranging in pairs or groups carries out the light mixing device of light mixing, provides uniform light mixing and colored lighting effects.
Background technique
Light emitting diode has the advantages that power saving and service life are long, but the wavelength of the light emitted line of different type light emitting diode
Range and illumination have its limitation, therefore when using light emitting diode as light source, will use shining for most different colors
Diode constitutes light emitting diode matrix, and is mixed using mixed light unit to the light emitted line of aforementioned light emitting diode matrix
Light, to generate high illumination and uniform illuminating effect.
Chinese CN101515423A patent of invention discloses a kind of diode display, has light emitting diode battle array
Column, light-mixing element and Light path correction element, but its light emitting diode matrix and light-mixing element do not carry out design optimization, mix
Light effect is still not good enough, it would be highly desirable to improve.
Summary of the invention
In view of this, there is preferable light mixing effect the purpose of the present invention is to provide a kind of non-coaxial light mixing device.
A kind of non-coaxial light mixing device provided by the present invention includes: a luminescence unit, has substrate and is arranged in substrate
Multiple light emitting diodes, each light emitting diode have a light-emitting surface；And at least a light-mixing element is led for polygonal column
Body of light, with an incidence surface close to the light-emitting surface of the multiple light emitting diode, and a light-emitting surface of opposite incidence surface, this enters
The central point of smooth surface can define an X-axis parallel with the multiple lumination of light emitting diode direction；Wherein, the multiple hair
The light-emitting surface of optical diode deviates a plotted point of the X-axis Yu the substrate.
Therefore, the center in the multiple lumination of light emitting diode face does not correspond to the position of light-mixing element incidence surface central point
It sets, so that all light that the multiple light emitting diode is emitted do not have the feelings along X-axis directive incidence surface central point
Shape, and then all light for allowing the multiple light emitting diode to be emitted can sufficiently carry out light mixing in light-mixing element.Cause
This is with preferable light mixing effect.
Detailed description of the invention
Fig. 1 is the schematic diagram of first embodiment provided by the present invention.
Fig. 2A is the schematic diagram in lumination of light emitting diode face in first embodiment provided by the present invention.
Fig. 2 B is the partial enlarged view of first embodiment provided by the present invention.
Fig. 3 is the light path schematic diagram of first embodiment provided by the present invention.
Fig. 4 is the schematic diagram of second embodiment provided by the present invention.
Fig. 5 is the schematic diagram of 3rd embodiment provided by the present invention.
Description of symbols:
10 non-coaxial light mixing devices
20 luminescence unit, 21 substrate, 22 light emitting diode
30 light-mixing element, 31 incidence surface, 32 light-emitting surface
33 reflection plated films
40 first lens unit 41,42 biconvex lens of single convex lens
50 second lens unit 51,52 biconvex lens of single convex lens
53 single convex lenses
X X-direction Y Y direction Z Z-direction
Specific embodiment
To illustrate structure feature and technical effect of the invention, providing following several embodiments and attached drawing being cooperated to carry out
It is described in detail.The present invention provides the non-coaxial light mixing device 10 of first embodiment, please refers to the 1st to 3 figure, non-coaxial light mixing device
10 include a luminescence unit 20, a light-mixing element 30 and one first lens unit 40.Wherein, the luminescence unit 20 is by base
Plate 21 is constituted with the light emitting diode 22 of multiple settings on the base plate (21, and each light emitting diode 22 has a light-emitting surface, with
Lower explanation is to be described using the light direction of light-emitting surface as front, to meet being generally understood for those skilled in the art.
As shown in Figure 1, light-mixing element 30 is a rectangular cylindrical light guide, has and be located in front of 22 light-emitting surface of light emitting diode
Incidence surface 31, and the light-emitting surface 32 of the opposite incidence surface 31,31 central point of incidence surface cooperate the luminous side of light emitting diode
To the X-axis longitudinally extended along light-mixing element 30 can be defined, and then defines and intersect with X-axis and orthogonal Y-axis
With Z axis (that is, constituting a rectangular coordinate system).In the present embodiment, light-mixing element 30 is solid construction and its cross section is positive
It is rectangular, therefore light-mixing element 30 has paralleled by X axis, the side length of Y-axis and Z axis respectively, the distance of aforementioned each side length is light mixing member
Length, width and the height of part 30.In the present embodiment, it is preferred that the ratio of mentioned length and width, which is 5 to 14, it is possible to provide excellent
The light mixing effect of choosing.Secondly, 30 cross section of light-mixing element can be also changed to rectangle by this field engineering staff, width and high at this time
The ratio of degree is 1.3 or less preferred.Certainly, 30 cross section of light-mixing element can also be changed to other polygon by this field engineering staff
Shape, such as hexagon or octagon.
2A and 2B is please referred to scheme, the substrate 21 of luminescence unit 20 set there are four light emitting diode 22 emit respectively feux rouges,
Green light, blue light and white light, light emission direction is parallel to the X-axis of light-mixing element 30, and substrate 21 can use light-mixing element 30
Y-axis and Z axis along the projection of X-direction divide into four quadrants, aforementioned light emitting diode 22 is arranged at equal intervals two-by-two
And it is respectively distributed to four quadrants.Therefore, the light-emitting surface of aforementioned light emitting diode 22 will not be with the extension of light-mixing element 30X axis
Line intersection.In other words, the light-emitting surface of the multiple light emitting diode 22 deviates the plotted point of the X-axis Yu the substrate, this also table
Show that the center of the multiple 22 light-emitting surface of light emitting diode does not correspond to the position of 30 incidence surface of light-mixing element, 31 central point.So
One, the light that light emitting diode 22 is emitted will not have part along the central point of X-direction directive incidence surface 31, in turn
All light for allowing light emitting diode 22 to be emitted can sufficiently carry out in the process of Spreading and diffusion in light-mixing element 30
Light mixing.
Supplementary explanation, in the present embodiment, light-emitting surface and the light-mixing element 30 of the multiple light emitting diode 22 enter
The spacing of smooth surface 31 about should be less than the height of light-mixing element 30, to ensure to shine light that the multiple diode 22 is emitted all
Light-mixing element 30 can be injected.
Other than the embodiment of previous embodiment, those skilled in the art can optionally adjust light emitting diode 22
Quantity and setting position, such as change three light emitting diodes 22 of setting and emit feux rouges, green light and blue light respectively, and with light mixing
Centered on the X-axis of element 30 and in angularly annular arrangement (that is, the triangulation point for being located at a virtual equilateral triangle).Anyway
Variation makes as long as the central point of all 22 light-emitting surfaces of light emitting diode is allowed to maintain the position for deviateing 31 central point of incidence surface
It obtains the light that all light emitting diodes 22 are emitted and does not have small part along the feelings of 31 central point of X-direction directive incidence surface
Shape.
Referring to Fig. 3, the first lens unit 40 is disposed in proximity to the position of 30 light-emitting surface 32 of light-mixing element, with lordosis
One single convex lens 41 and a biconvex lens 42, for providing Light path correction and spotlight effect, light shape required for having obtained and light
Flux.
Please referring to Fig. 4 is second embodiment provided by the present invention, and primary structure is substantially identical as aforementioned first embodiment,
Main difference point is: light-mixing element 30 is hollow structure, and reflection plated film 33 is equipped with inside light-mixing element 30.At this point, light mixing
For the width of element 30 and height are the inner space boundary with light-mixing element 30.
Please refer to again Fig. 5 be 3rd embodiment provided by the present invention, primary structure substantially with aforementioned first embodiment phase
Together, main difference point is: the second lens unit 50 is had additional between light-mixing element 30 and luminescence unit 20, be from the front to the back by
Single convex lens 51, the biconvex lens 52 of the lordosis of sequence arrangement are constituted with rear convex single convex lens 53, are equally for providing light
Road amendment and spotlight effect.
It will be understood by those skilled in the art that the lens combination of lens unit can be adjusted optionally, and optionally put
It is placed in the front side or rear side of light-mixing element 30, good Light path correction effect can be provided.It is worth supplementary explanation, in spy
In the case where fixed, it can also be not provided with lens unit, in addition, light-mixing element 30 is also possible to another light-mixing element use of arranging in pairs or groups, it is preceding
Stating another light-mixing element can be the light-mixing element of other configurations or type.
By aforementioned structure, all light that all light emitting diodes 22 of the present invention are emitted are not had along X-axis side
To 31 central point of directive incidence surface, so can generate compared with the prior art more preferably light mixing effect.
Claims (10)
1. a kind of non-coaxial light mixing device, includes:
One luminescence unit, with a substrate and multiple light emitting diodes that the substrate is arranged in, each light emitting diode has one
Light-emitting surface, the light that the multiple light emitting diode is emitted include at least two kinds of emission wavelength colors；And
An at least light-mixing element is polygonal column light guide, with an incidence surface close to the hair of the multiple light emitting diode
Smooth surface, and a light-emitting surface of the opposite incidence surface, the central point of the incidence surface can define and the multiple light-emitting diodes
The parallel X-axis of pipe light emission direction；
Wherein, the light-emitting surface of the multiple light emitting diode deviates a plotted point of the X-axis Yu the substrate.
2. non-coaxial light mixing device as described in claim 1, wherein the section shape of the light-mixing element is quadrangle, hexagon
Or octagon.
3. non-coaxial light mixing device as described in claim 1, wherein the section shape of the light-mixing element is rectangle, and aforementioned square
The side length ratio of shape is between 1 to 1.3.
4. non-coaxial light mixing device as claimed in claim 3, wherein the longitudinal length of the light-mixing element is aforementioned rectangular side length
5 to 14 times.
5. non-coaxial light mixing device as claimed in claim 3, wherein the light-emitting surface of the multiple light emitting diode and the light mixing
Spacing between the incidence surface of element is less than the height of the light-mixing element.
6. the non-coaxial light mixing device as described in claim 1 to 5 is any, wherein the light-mixing element is solid construction.
7. the non-coaxial light mixing device as described in claim 1 to 5 is any, wherein the light-mixing element is hollow structure, and
A reflection plated film is equipped with inside the light-mixing element.
8. non-coaxial light mixing device as described in claim 1, wherein light-mixing element definition, which has, intersects with the X-axis and mutually hangs down
A straight Y-axis and a Z axis, the substrate can use the Y-axis and the Z axis and divide into four quadrants along the projection of the X-axis, institute
The quantity for stating multiple light emitting diodes is four, and arranged at equal intervals are distributed in the multiple quadrant two-by-two.
9. non-coaxial light mixing device as described in claim 1, wherein the multiple light emitting diode be centered on the X-axis and
In angularly annular arrangement.
It also include that be disposed in proximity to this mixed for an at least lens unit 10. non-coaxial light mixing device as described in claim 1
Incidence surface or the light-emitting surface of optical element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017209219102 | 2017-07-27 | ||
| CN201720921910 | 2017-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109307162A true CN109307162A (en) | 2019-02-05 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711099436.0A Pending CN109307162A (en) | 2017-07-27 | 2017-11-09 | Non-coaxial light mixing device |
| CN201721488687.3U Active CN207349826U (en) | 2017-07-27 | 2017-11-09 | non-coaxial light mixing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721488687.3U Active CN207349826U (en) | 2017-07-27 | 2017-11-09 | non-coaxial light mixing device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307162A (en) * | 2017-07-27 | 2019-02-05 | 极智光电股份有限公司 | Non-coaxial light mixing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405653A (en) * | 2006-03-23 | 2009-04-08 | 松下电器产业株式会社 | Projection type display device and light source device |
| CN101515423A (en) * | 2008-02-22 | 2009-08-26 | 富士迈半导体精密工业（上海）有限公司 | Light-emitting diode display device |
| TW200939174A (en) * | 2008-03-07 | 2009-09-16 | Foxsemicon Integrated Tech Inc | Light emitting diode display |
| CN102155713A (en) * | 2010-04-08 | 2011-08-17 | 深圳市光峰光电技术有限公司 | Light mixing luminaire |
| CN203231244U (en) * | 2013-05-06 | 2013-10-09 | 蕙萰科技股份有限公司 | Light-guiding lens module |
| CN207349826U (en) * | 2017-07-27 | 2018-05-11 | 极智光电股份有限公司 | non-coaxial light mixing device |
-
2017
- 2017-11-09 CN CN201711099436.0A patent/CN109307162A/en active Pending
- 2017-11-09 CN CN201721488687.3U patent/CN207349826U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405653A (en) * | 2006-03-23 | 2009-04-08 | 松下电器产业株式会社 | Projection type display device and light source device |
| CN101515423A (en) * | 2008-02-22 | 2009-08-26 | 富士迈半导体精密工业（上海）有限公司 | Light-emitting diode display device |
| TW200939174A (en) * | 2008-03-07 | 2009-09-16 | Foxsemicon Integrated Tech Inc | Light emitting diode display |
| CN102155713A (en) * | 2010-04-08 | 2011-08-17 | 深圳市光峰光电技术有限公司 | Light mixing luminaire |
| CN203231244U (en) * | 2013-05-06 | 2013-10-09 | 蕙萰科技股份有限公司 | Light-guiding lens module |
| CN207349826U (en) * | 2017-07-27 | 2018-05-11 | 极智光电股份有限公司 | non-coaxial light mixing device |
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| Publication number | Publication date |
|---|---|
| CN207349826U (en) | 2018-05-11 |
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Application publication date: 20190205 |
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