CN101846259A - LED light mixing device - Google Patents
LED light mixing device Download PDFInfo
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- CN101846259A CN101846259A CN201010187221A CN201010187221A CN101846259A CN 101846259 A CN101846259 A CN 101846259A CN 201010187221 A CN201010187221 A CN 201010187221A CN 201010187221 A CN201010187221 A CN 201010187221A CN 101846259 A CN101846259 A CN 101846259A
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Abstract
The invention relates to an LED light mixing device. The existing LED light mixing device does not conform to the tendency of thin appearance, and has low light outlet rate. The LED light mixing device of the invention comprises an illumination module. The invention is characterized in that the LED light mixing device also comprises a light guide plate, the light illumination module comprises a base plate, at least two kinds of single-color LED light sources are arranged on the base plate, the illumination module is arranged on the side surface of the light guide plate, the illumination direction of the LED light source faces the light guide plate, uniform notches or reflecting net points are formed on a lower panel of the light guide plate, and a diffusion film is arranged above the upper panel of the light guide plate. The invention reduces the integral thickness of the light mixing device, the emitting direction of partial LED light sources is changed through the light guide plate with the net points or the notches at the lower panel, the loss caused by light ray emitting from the lower panel of the light guide plate is avoided, and the light outlet rate is improved. Partial light rays are emitted out from the upper side of the light guide plate after being reflected for many times in the light guide plate, the light mixing distance of the LED light source is effectively increased in the period, and the light mixing effect is more uniform.
Description
Technical field
The present invention relates to the LED technical field, be specifically related to a kind of LED light mixing device.
Technical background
LED has that spectral line is narrow, luminosity and forward current are approximated to direct ratio, response speed is fast and volume is little characteristics in operating voltage range, and it is very suitable for mixed light and uses.LED light mixing device at present commonly used comprises substrate, and a plurality of monochromatic LED light sources are installed on the substrate, is nested with a diffusion shell outside the monochromatic LED light source, and the light that each not homochromy led light source sends passes to scattering behind the exiting surface of diffusion shell top, forms the mixed light effect.There is following shortcoming in this class device: itself have certain thickness LED owing to the diffusion shell domestic demand is ccontaining, cause the thickness of whole light mixing device bigger, do not meet the trend of slimming; Part light is launched from the lower panel of diffusion shell owing to after the inner generation of diffusion shell total reflection, light losing, and light emission rate is on the low side.
Summary of the invention
The present invention is directed to the defective that prior art exists, a kind of light mixing device of LED light fixture is provided, improve the slimming of light extraction efficiency and realization light mixing device, further purpose is to improve the even light mixing degree.
For this reason, the present invention takes following scheme: a kind of LED light mixing device, comprise light emitting module, it is characterized in that also comprising LGP, described light emitting module comprises substrate, and at least two kinds of monochromatic LED light sources are housed on the substrate, described light emitting module is arranged on the side of LGP, the light emission direction of led light source forms uniform indentation or reflection site towards LGP on the lower panel of described LGP, the top panel top of described LGP is provided with diffusion barrier.Led light source is set in parallel in a side of corresponding LGP, and is not contained in LGP inside, can effectively reduce the thickness of light mixing device, meets slimming trend; The light part that led light source sends is directly launched from the top panel of LGP, a part is totally reflected to the lower panel of LGP through top panel, light after this part total reflection and led light source directly are mapped to the light on the LGP lower panel, the top panel of LGP reflexed to again by the reflector space of LGP lower panel formation indentation and site, scattering takes place in all after the light that the LGP top panel penetrates is mapped to diffusion barrier, form mixed light.The part light that LED sends through reflection repeatedly, mixes all kinds of not homochromy led light sources before arriving diffusion barrier fully, has improved the uniformity of mixed light.In the mixed light process, light has only small part to penetrate from other exiting surface of LGP, has improved light emission rate.
The lower panel below of described LGP is provided with reflecting piece.The material that reflecting piece adopts PET or surface to be coated with high reflected coat layer is made, and the light that can be effectively part be penetrated from the LGP lower face is again in the reflected back LGP, the minimizing light losing.
The top of described diffusion barrier is provided with light-passing board, and light-passing board can allow the light behind the mixed light be tending towards evenly, is beneficial to heat insulation, cooling, also can obtain good decoration effect.
Described monochromatic LED light source is White LED, red LED, blue led or green LED, and led light source by three primary colours and white light source can modulate the nearly all saturated color in the cie color curve.
Described each monochromatic LED light source is disposed on the substrate, makes the mixed light effect that reaches more even.
Described LGP is a cuboid, and the two or more sides of described LGP are provided with light emitting module, and the mixed light effect is more even, and can not increase the thickness of light mixing device.
The material of described making LGP is PMMA, COP or PC, and these a few class materials have the good optical characteristic, the light emission rate height.
The thickness and the substrate thickness of LGP are suitable.
Beneficial effect of the present invention is embodied in: 1. light emitting module is arranged on a side of the thickness LGP suitable with it, is covered with diffusion shell relatively thereon, has reduced the integral thickness of light mixing device, meets slimming trend; 2. the LGP by following strip site or indentation changes the transmit direction of partial L ED light source, avoids light to send and cause damage from the LGP lower panel, has improved light emission rate; 3. part light penetrates from the LGP top panel through reflection back repeatedly in LGP, forms scattering through diffusion barrier again, during effectively increased the light mixing distance of led light source, mixed light is more even.
Figure of description
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present invention;
Fig. 2 is a monochromatic LED light source luminescent control schematic diagram of the present invention;
Among the figure: 1. light emitting module; 11. substrate; 12.LED light source; 21. reflecting piece; 22. LGP; 23. diffusion barrier; 24. light-passing board.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present invention is further described.
LED light mixing device as depicted in figs. 1 and 2 comprises the LGP 22 of the cuboid made from materials such as PMMA, COP or PC, forms uniform indentation or reflection site on the lower panel of LGP 22.LGP 22 at least one sides are provided with light emitting module 1, and this light emitting module 1 comprises strip substrate 11, and at least two kinds of monochromatic LED light sources 12 are housed on the substrate 11, and the top panel top of LGP 22 is provided with diffusion barrier 23, and the top of diffusion barrier 23 is provided with light-passing board 24.The lower panel below of LGP 22 is provided with reflecting piece 21, and the material that reflecting piece 21 adopts PET or surface to be coated with high reflected coat layer is made.Monochromatic LED light source 12 can be White LED, red LED, blue led or green LED.According to the mixed light needs of reality, can carry out any combination collocation to four kinds of above-mentioned light sources, thereby reach desirable mixed light effect.Each monochromatic LED light source 12 can be disposed on the substrate 11 of a side, also can be arranged in simultaneously on the substrate 11 of LGP 22 other sides.
The light mixing device course of work is as follows: a part of light that led light source sends is directly launched from the top panel of LGP, a part is totally reflected on the lower panel of LGP through top panel, light after this part total reflection and led light source directly are mapped to the light on the LGP lower panel, the top panel of LGP reflexed to again by the reflector space of LGP lower panel formation indentation and site, scattering takes place in all after the light that the LGP top panel penetrates is mapped to diffusion barrier, form mixed light.The part light that LED sends through reflection repeatedly, mixes all kinds of not homochromy led light sources before arriving diffusion barrier fully, has improved the uniformity of mixed light.In the mixed light process, light has only small part to penetrate from other exiting surface of LGP, has improved light emission rate.
Claims (8)
1. LED light mixing device, comprise light emitting module (1), it is characterized in that also comprising LGP (22), described light emitting module (1) comprises substrate (11), at least two kinds of monochromatic LED light sources (12) are housed on the substrate (11), described light emitting module (1) is arranged on the side of LGP (22), the light emission direction of led light source (12) is towards LGP (22), form uniform indentation or reflection site on the lower panel of described LGP (22), the top panel top of described LGP (22) is provided with diffusion barrier (23).
2. according to the described LED light mixing device of claim 1, it is characterized in that the lower panel below of described LGP (22) is provided with reflecting piece (21).
3. according to the described LED light mixing device of claim 2, it is characterized in that the top of described diffusion barrier (23) is provided with light-passing board (24).
4. according to the described LED light mixing device of claim 3, it is characterized in that described monochromatic LED light source (12) is White LED, red LED, blue led or green LED.
5. according to claim 1 or 4 described LED light mixing devices, it is characterized in that described each monochromatic LED light source (12) is disposed on the substrate.
6. according to the described LED light mixing device of claim 1, it is characterized in that described LGP (22) is a cuboid, the two or more sides of described LGP (22) are provided with light emitting module (1).
7. according to the described LED light mixing device of claim 1, the material that it is characterized in that described making LGP (22) is PMMA, COP or PC.
8. according to the described LED light mixing device of claim 1, it is characterized in that the thickness of described LGP (22) and substrate (11) thickness are suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010187221A CN101846259A (en) | 2010-05-31 | 2010-05-31 | LED light mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010187221A CN101846259A (en) | 2010-05-31 | 2010-05-31 | LED light mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101846259A true CN101846259A (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010187221A Pending CN101846259A (en) | 2010-05-31 | 2010-05-31 | LED light mixing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101846259A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395338A (en) * | 2013-08-07 | 2013-11-20 | 上海瑞尔实业有限公司 | Self-luminous vehicle wheel arm molding device and vehicle wheel component with same |
| CN105572789A (en) * | 2016-01-19 | 2016-05-11 | 山西宇皓新型光学材料有限公司 | Light guide plate, backlight assembly and lighting device |
| CN106125188A (en) * | 2016-06-29 | 2016-11-16 | 中国人民解放军63983部队 | A kind of area source leaded light colour mixture structure and there is the illuminating lamp of this leaded light colour mixture structure |
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| CN2895987Y (en) * | 2006-08-14 | 2007-05-02 | 任少华 | Plane-light-source for desk lamp/reading lamp |
| CN2929456Y (en) * | 2006-07-06 | 2007-08-01 | 伟志智能有限公司 | Expansion type LED lighting source |
| CN101303451A (en) * | 2008-02-04 | 2008-11-12 | 厦门伟然科技有限公司 | Controllable LED lightness medical film observation lamp house |
| CN101334135A (en) * | 2008-04-18 | 2008-12-31 | 任少华 | Surface light source for table lamp /reading light /lighting lamp |
| CN201696927U (en) * | 2010-05-31 | 2011-01-05 | 艾迪光电（杭州）有限公司 | LED light mixing device |
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2010
- 2010-05-31 CN CN201010187221A patent/CN101846259A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163297Y (en) * | 1993-08-02 | 1994-04-27 | 孔爱清 | Colour regulating lamp |
| CN2929456Y (en) * | 2006-07-06 | 2007-08-01 | 伟志智能有限公司 | Expansion type LED lighting source |
| CN2895987Y (en) * | 2006-08-14 | 2007-05-02 | 任少华 | Plane-light-source for desk lamp/reading lamp |
| CN101303451A (en) * | 2008-02-04 | 2008-11-12 | 厦门伟然科技有限公司 | Controllable LED lightness medical film observation lamp house |
| CN101334135A (en) * | 2008-04-18 | 2008-12-31 | 任少华 | Surface light source for table lamp /reading light /lighting lamp |
| CN201696927U (en) * | 2010-05-31 | 2011-01-05 | 艾迪光电（杭州）有限公司 | LED light mixing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395338A (en) * | 2013-08-07 | 2013-11-20 | 上海瑞尔实业有限公司 | Self-luminous vehicle wheel arm molding device and vehicle wheel component with same |
| CN105572789A (en) * | 2016-01-19 | 2016-05-11 | 山西宇皓新型光学材料有限公司 | Light guide plate, backlight assembly and lighting device |
| CN106125188A (en) * | 2016-06-29 | 2016-11-16 | 中国人民解放军63983部队 | A kind of area source leaded light colour mixture structure and there is the illuminating lamp of this leaded light colour mixture structure |
| CN106125188B (en) * | 2016-06-29 | 2019-11-26 | 中国人民解放军63983部队 | A kind of area source leaded light colour mixture structure and the headlamp with the leaded light colour mixture structure |
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Address after: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1180 No. 2 building second layer Applicant after: LED ONE (Hangzhou) Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 1180 No. 2 building second layer Applicant before: Aidi Photoelectric (Hangzhou) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: AIDI PHOTOELECTRIC (HANGZHOU) CO., LTD. TO: INVENTRONICS (HANGZHOU), INC. |
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Application publication date: 20100929 |