CN102798081A - Indirect lighting method and device and automotive internal decoration piece adopting method and device - Google Patents
Indirect lighting method and device and automotive internal decoration piece adopting method and device Download PDFInfo
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- CN102798081A CN102798081A CN2011101366308A CN201110136630A CN102798081A CN 102798081 A CN102798081 A CN 102798081A CN 2011101366308 A CN2011101366308 A CN 2011101366308A CN 201110136630 A CN201110136630 A CN 201110136630A CN 102798081 A CN102798081 A CN 102798081A
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- light guide
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- illumination
- indirect lighting
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Abstract
The invention relates to an indirect lighting method which can be applied to lighting of an automotive internal decoration piece such as an automotive instrument, a navigation panel, a central control panel and a vehicle-mounted clock. Light rays emitted by a light source are used for lighting, and a light guide device transmits the light rays emitted by the light source to an irradiated object and a transmittance surface device. The invention also relates to an indirect lighting device and the automotive internal decoration piece adopting the indirect lighting device. The indirect lighting device comprises a luminous light source and the light guide device for transmitting the light rays emitted by the light source to the irradiated object and the transmittance surface device.
Description
Technical field
The present invention relates to a kind of method and device of indirect lighting; Relate in particular to a kind of indirect light means of illumination and device of automotive upholstery, and adopt the automotive upholstery of automobile combination meter, navigation panel central control panel and the vehicle-mounted clock etc. of this means of illumination and device.
Background technology
Automotive upholstery number of applications indirect light lighting system.For example, automobile combination meter needs various figures or numerals such as display speed, oil mass usually, realizes effectively driving control so that the driver can understand vehicle condition at any time.In addition, automobile combination meter also has certain decoration requirement, and the designing requirement of instrument board is attractive in appearance and have a sight.At present, automobile combination meter develops towards more and more dazzling direction.Therefore, in automobile combination meter, need the multiple lighting system of utilization to reach desired visual effect.
At present, most automotive upholsteries such as automobile instrument panel all adopt the LED lamp wiring as lighting source.Because the radiation intensity of LED lamp wiring is along with the angle of light offset from perpendicular increases and reduces rapidly; In the cone scope of LED lamp wiring radiation; The radiation of light source is the strongest in vertical direction, and the rapidly decay along with the increase of deviation angle is 80 when spending in angle of radiation; The radiation intensity of light source is almost nil, and traditional automobile instrument lighting system is as shown in Figure 1.In order to reach good visual effect, need to adopt a plurality of LED lamps to do indirect lighting.
Generally, part not fully up to expectations below above-mentioned traditional indirect lighting method exists:
1) uneven illumination is even.Obviously, the radiant energy that receives light owing to the place nearer apart from light source is more, and is common than high away from the strong brightness of the local illumination of light source near the place of light source;
2) light source is provided with inconvenience.Do indirect lighting if use the additional LEDs lamp; Then need adopt additional printed substrate (pcb board); And additional pcb board needs extra employing jockey (for example connecting line) to be connected on the main PCB plate, thereby has extra inconvenience at aspects such as installing, control the LED lamp;
3) lampshade need be set.This is in order to guarantee the uniformity of illumination as far as possible;
4) the middle shade that can occur pointer usually of instrument board.
Realize in the prior art that the existing cost of indirect light illumination problem high, that lighting effect is bad is as shown in Figure 1, wherein the auxiliary pcb board of the extra employing of needs, connector, rat tail etc. have all increased technical difficulty and cost.And since away from the received irradiate light in the instrument board of LED lamp surface a little less than, so illuminating effect is inhomogeneous, influences the handling of vehicle.
Summary of the invention
The present invention is intended to overcome the shortcoming of prior art, provide innovation indirect lighting method and apparatus and adopt the automotive upholsteries such as automobile instrument of this method and apparatus, comprising the transmission plane device of innovation and the design of light guide.
According to the present invention, a kind of method of indirect lighting, the light that adopts light source to send is used for illumination, and the employing light guide will be from light transmission to illuminated object and the transmission plane device place that light source sends.
Preferably, the method for indirect lighting of the present invention is utilized convex lens or Fresnel Lenses optically focused, light-ray condensing in light guide.
Advantageously, the light guide of the method for indirect lighting of the present invention employing can be optical fiber or LGP.
Alternatively,, on said light guide, prism is set, utilizes said prism throw light according to the method for indirect lighting of the present invention.
Alternatively, according to the method for indirect lighting of the present invention, the said prism on the said light guide is convex lens or concavees lens.
Alternatively, according to the method for indirect lighting of the present invention, handle to strengthen albedo at said transmission plane apparatus surface.
Preferably, carrying out optical coating, chromium plating or thermoprint silver printing ink in said light guide surface handles to strengthen albedo.
Advantageously, the method for indirect lighting of the present invention is used for the illumination of automotive upholstery.
Preferably, said automotive upholstery is automobile instrument, navigation panel or central control panel.
According to the present invention, a kind of automotive upholstery, it adopts the method illumination of indirect lighting of the present invention.
According to the present invention, a kind of indirect illumination comprises illuminating source, also comprises the light guide with the light transmission of sending from light source to illuminated object and transmission plane device place.
Preferably, this indirect illumination comprises the beam condensing unit of light-ray condensing in the light guide.
Preferably, said beam condensing unit is convex lens or Fresnel Lenses.
Preferably, said light guide is optical fiber or LGP.
Alternatively, said light guide is provided with prism.
Alternatively, the said prism on the said light guide is convex lens or concavees lens.
Advantageously, said light guide surface is through handling to strengthen the surface of albedo.
Preferably, said light guide surface is the surface of handling through optical coating, chromium plating or thermoprint silver printing ink.
According to the present invention, a kind of automotive upholstery comprises the indirect illumination of aforesaid this automotive upholstery of illumination.
Preferably, said automotive upholstery is automobile instrument, navigation panel, central control panel or vehicle-mounted clock.
Description of drawings
Hereinafter, the embodiment that present invention will be described in detail with reference to the accompanying.Below shown in:
Fig. 1 is traditional automobile instrument lighting system,
Fig. 2 is a kind of embodiment sketch map that adopts light guide among the present invention,
A kind of embodiment sketch map of the light guide that Fig. 3 is among the present invention to be adopted,
A kind of embodiment sketch map of the Fresnel Lenses that Fig. 4 is among the present invention to be adopted,
The several embodiments sketch map of the light-ray condensing part of the light guide that Fig. 5 is among the present invention to be adopted,
Fig. 6 is the sketch map of a kind of embodiment of the transmission plane device among the present invention,
The specific embodiment
Indirect lighting method of the present invention and device adopt light source, light guide and transmission plane device (like the sight glass inner surface), and be as shown in Figure 2.
Fig. 2 is a kind of embodiment that the present invention adopts light guide.Wherein, 2 is light emitting diode (LED lamp), and it is positioned on the pcb board 1.The cross section of the radiation scope of light emitting diode is conical.Luminous flux is transmitted to light delivery outlet 401 through light guide 3, projects light.The light that a projected part arrives instrument board, i.e. the residing place that needs illumination such as pointer 6, and a part arrives on the transmission plane device 5 in addition, according to the Fresnel reflection principle, transmission plane device 5 reflection rays, thus illuminate instrument board.In addition, a part of light incides in the transmission plane device 5, thereby transmission plane device 5 also plays the effect of photoconduction, and light is further conducted and throws.
In this embodiment, light guide 3 can be optical fiber or LGP, and the existing fiber technology adopts these conduction devices can light almost be had no the objective that conducts to of loss.LGP is a kind of transparent member through particular design, and it can conduct to objective with light effectively.
Fig. 3 is a kind of embodiment of light guide 3 among the present invention, and wherein 301 is the ray-collecting part of light guide 3.The ray-collecting part can be convex lens, or Fresnel Lenses, and Fresnel Lenses can reduce lens thickness effectively.The embodiment of Fresnel Lenses is stated the explanation to Fig. 4 as follows.302 is the high reflection layer of light guide 3.The high reflection layer part can pass through optical coating or chromium plating/aluminium is handled.Adjustment angle 3021 α can adjust the projecting direction of light.Experiment shows, when light crevice projection angle (being the angle of incident light and glass) be set in and can obtain good illuminating effect when 20-30 spends.303 is the light-ray condensing part of light guide 3, and it can be convex lens.Can realize the concentrated ejaculation of light through this light-ray condensing part.Light-ray condensing partly sees following explanation to Fig. 5 for details.
Fig. 4 is a kind of embodiment of light guide 3 among the present invention.Fresnel Lenses is a kind of special lenses of being made up of a plurality of donuts, in the present invention, because LED is very little.Usually needing only 1-3 isocentric circular arc just can.Too many, unfavorable to the processing of mould with manufacturing.
Fig. 5 is a kind of embodiment of the light-ray condensing part of light guide 3 among the present invention, and it has shown three kinds of different concentration structures, and wherein a is tiny stria, and b is the wall scroll stria, all is the stria of curve for both direction c).The purpose that these strias are set is the zone of control ray cast and the intensity of projection.
Fig. 6 is the embodiment of the transmission plane device among the present invention.According to present technology, transmission plane device 5 generally is that for example PC, PMMA or PA process by transparent plastics.Find that through after the optical analog in order to reach best reflection efficiency, it can adopt special shape.For example; The thickness of glass is reduced gradually (promptly local thick near light guide is local thin away from light guide), so just can utilize glass (form) to conduct light; And compensation is because of passing to the increase of distance, and causes illuminating the minimizing of the light of dial plate.Because outer surface relates to look and feel, so the leeway that the outer surface 502 of transmission plane is changed is less.The inner surface 501 of transmission plane can plated film, to reach best reflection efficiency.According to the Fresnel reflection law, when light at the interface of two kinds of transparent mediums reflection and refraction took place, usually, incident angle was big more, and the reflection ray energy is just strong more, and reverberation is just strong more.
Facts have proved that in backing structure shown in Figure 2, when having glass-reflected, the brightness of pointer can reach 3-5cd/m
2, there is not the glass reflex time, its light luminance is 1cd/m
2This shows that the effect that increases the improvement illumination of glass reflection back is quite obvious.
In addition, because the light reflex of interior surfaces of glass 501 makes the inner surface of transmission plane device 5 form a large-area light source, so just can reduce the probability of the shade that pointer 6 occurs effectively.
Foregoing description to various embodiment of the present invention provides just to purpose of description.It is also non exhaustive, also the present invention is not limited to single or some disclosed embodiment.In fact, a plurality of substituting with modification for reference to being conspicuous those of ordinary skill in the art of the present invention of the present invention perhaps is easy to exploitation.Patent specification will cover substitute and revise and the fall into spirit of foregoing invention and other embodiment within the scope of the present invention disclosed herein.
Claims (21)
1. the method for an indirect lighting, the light that adopts light source to send is used for illumination, it is characterized in that, adopts the light guide will be from light transmission to illuminated object and the transmission plane device place that light source sends.
2. the method for indirect lighting as claimed in claim 1 is characterized in that, adopts beam condensing unit, light-ray condensing in light guide.
3. the method for indirect lighting as claimed in claim 2 is characterized in that, said beam condensing unit is convex lens or Fresnel Lenses.
4. the method for indirect lighting as claimed in claim 3 is characterized in that, said light guide is optical fiber or LGP.
5. the method for indirect lighting as claimed in claim 4 is characterized in that, on said light guide, prism is set, and utilizes said prism throw light.
6. the method for indirect lighting as claimed in claim 5 is characterized in that, the said prism on the said light guide is convex lens or concavees lens.
7. the method for indirect lighting as claimed in claim 6 is characterized in that, handles to strengthen albedo in said light guide surface.
8. the method for indirect lighting as claimed in claim 7 is characterized in that, carries out optical coating, chromium plating or thermoprint silver printing ink in said light guide surface and handles to strengthen albedo.
9. like the method for the described indirect lighting of claim 1-8, it is characterized in that the method for this indirect lighting is used for the illumination of automotive upholstery.
10. the method for indirect lighting as claimed in claim 9 is characterized in that, said automotive upholstery is automobile instrument, navigation panel, central control panel or vehicle-mounted clock.
11. an automotive upholstery is characterized in that, this automotive upholstery adopts the method illumination like the described indirect lighting of claim 1-8.
12. an indirect illumination comprises illuminating source, it is characterized in that, this device also comprises the light guide with the light transmission of sending from light source to illuminated object and transmission plane device place.
13. indirect illumination as claimed in claim 12 is characterized in that, this indirect illumination comprises the beam condensing unit of light-ray condensing in the light guide.
14. indirect illumination as claimed in claim 13 is characterized in that, said beam condensing unit is convex lens or Fresnel Lenses.
15. indirect illumination as claimed in claim 14 is characterized in that, said light guide is optical fiber or LGP.
16. indirect illumination as claimed in claim 15 is characterized in that, said light guide is provided with prism.
17. indirect illumination as claimed in claim 16 is characterized in that, the said prism on the said light guide is convex lens or concavees lens.
18. indirect illumination as claimed in claim 17 is characterized in that, said light guide surface is through handling to strengthen the surface of albedo.
19. indirect illumination as claimed in claim 18 is characterized in that, said light guide surface is the surface of handling through optical coating, chromium plating or thermoprint silver printing ink.
20. an automotive upholstery is characterized in that, comprises the indirect illumination like described this automotive upholstery of illumination of claim 12-19.
21. automotive upholstery as claimed in claim 20 is characterized in that, said automotive upholstery is automobile instrument, navigation panel, central control panel or vehicle-mounted clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101366308A CN102798081A (en) | 2011-05-25 | 2011-05-25 | Indirect lighting method and device and automotive internal decoration piece adopting method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101366308A CN102798081A (en) | 2011-05-25 | 2011-05-25 | Indirect lighting method and device and automotive internal decoration piece adopting method and device |
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| CN102798081A true CN102798081A (en) | 2012-11-28 |
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| CN2011101366308A Pending CN102798081A (en) | 2011-05-25 | 2011-05-25 | Indirect lighting method and device and automotive internal decoration piece adopting method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103035303A (en) * | 2012-12-31 | 2013-04-10 | 马瑞利汽车电子(广州)有限公司 | Pointer structure of instrument panel |
| CN109131058A (en) * | 2018-09-14 | 2019-01-04 | 延锋伟世通电子科技（上海）有限公司 | A kind of reflective suspension halation structure |
| CN112298027A (en) * | 2020-11-03 | 2021-02-02 | 上海延锋金桥汽车饰件系统有限公司 | Vehicle interior trim part |
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| US5178446A (en) * | 1990-12-01 | 1993-01-12 | Robert Bosch Gmbh | Centralized lighting system for a vehicle having a central light source automatically exchangable in the event of failure |
| US20070019429A1 (en) * | 2005-07-21 | 2007-01-25 | Valeo Vision | Lighting or indicator device, in particular for motor vehicles |
| CN101713514A (en) * | 2008-09-29 | 2010-05-26 | 丰田合成株式会社 | Vehicle interior lighting device |
| CN101825255A (en) * | 2010-03-30 | 2010-09-08 | 奇瑞汽车股份有限公司 | LED light guide strip vehicle decoration product |
| CN201764376U (en) * | 2010-04-21 | 2011-03-16 | 上海小糸车灯有限公司 | Light-guide luminaire provided with inner lens and used for vehicles |
| CN102076523A (en) * | 2008-09-19 | 2011-05-25 | 本田技研工业株式会社 | Lighting device and door lining using same |
| CN202118744U (en) * | 2011-05-25 | 2012-01-18 | 马瑞利汽车电子(广州)有限公司 | Indirect illuminating device and automotive upholstery adopting same |
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2011
- 2011-05-25 CN CN2011101366308A patent/CN102798081A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178446A (en) * | 1990-12-01 | 1993-01-12 | Robert Bosch Gmbh | Centralized lighting system for a vehicle having a central light source automatically exchangable in the event of failure |
| US20070019429A1 (en) * | 2005-07-21 | 2007-01-25 | Valeo Vision | Lighting or indicator device, in particular for motor vehicles |
| CN102076523A (en) * | 2008-09-19 | 2011-05-25 | 本田技研工业株式会社 | Lighting device and door lining using same |
| CN101713514A (en) * | 2008-09-29 | 2010-05-26 | 丰田合成株式会社 | Vehicle interior lighting device |
| CN101825255A (en) * | 2010-03-30 | 2010-09-08 | 奇瑞汽车股份有限公司 | LED light guide strip vehicle decoration product |
| CN201764376U (en) * | 2010-04-21 | 2011-03-16 | 上海小糸车灯有限公司 | Light-guide luminaire provided with inner lens and used for vehicles |
| CN202118744U (en) * | 2011-05-25 | 2012-01-18 | 马瑞利汽车电子(广州)有限公司 | Indirect illuminating device and automotive upholstery adopting same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103035303A (en) * | 2012-12-31 | 2013-04-10 | 马瑞利汽车电子(广州)有限公司 | Pointer structure of instrument panel |
| CN109131058A (en) * | 2018-09-14 | 2019-01-04 | 延锋伟世通电子科技（上海）有限公司 | A kind of reflective suspension halation structure |
| CN112298027A (en) * | 2020-11-03 | 2021-02-02 | 上海延锋金桥汽车饰件系统有限公司 | Vehicle interior trim part |
| CN112298027B (en) * | 2020-11-03 | 2022-05-10 | 上海延锋金桥汽车饰件系统有限公司 | Vehicle interior trim part |
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Application publication date: 20121128 |