CN102092340A - Instrument backlight illumination device - Google Patents
Instrument backlight illumination device Download PDFInfo
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- CN102092340A CN102092340A CN 201010620236 CN201010620236A CN102092340A CN 102092340 A CN102092340 A CN 102092340A CN 201010620236 CN201010620236 CN 201010620236 CN 201010620236 A CN201010620236 A CN 201010620236A CN 102092340 A CN102092340 A CN 102092340A
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Abstract
The invention discloses an instrument backlight illumination device, comprising a light source and a light guide fiber, wherein the light guide fiber is positioned between an instrument panel and a panel support of the instrument and is arranged long an area to be illuminated of the instrument panel; and the light source is arranged on the face of a first end and/or a second end of the light guide fiber. In the instrument backlight illumination device disclosed by the invention, light rays emitted by the light source are transmitted in the light guide fiber, because the light guide fiber is arranged long the area to be illuminated in the instrument panel, the light rays emitted from the wall of the light guide fiber only illuminate the area to be illuminated in the instrument panel, and other areas cannot be illuminated, and thus, the light utilization rate is improved; in addition, only 1-2 light source(s) need(s) to be arranged in the instrument backlight illumination device, and no light guide plate is used, and thus, the cost is reduced.
Description
Technical field
The present invention relates to instrument back lighting technology, relate in particular to a kind of instrument backlighting arrangement.
Background technology
Still can clearly indicate in darker environment for the ease of instrument (particularly auto meter), perhaps play the effect of decoration, require instrument face plate to be illuminated.
Existing instrument face plate illumination is provided by LED, and lighting system mainly contains two kinds: the one, adopt the light source direct irradiation whole front panel back side; The 2nd, light source is realized the scale on the panel, the illumination of numeral by special-shaped LGP illuminated portion back side of panel.
Adopt the mode at the light source direct irradiation whole front panel back side, most of light loss consumption is in the zone that does not need to throw light on, cause the degree of utilization of light low, and the luminous characteristics of LED to have determined to face the regional luminance of LED higher, and the regional luminance between two LEDs is lower, and therefore in order to guarantee the brightness requirement of whole front panel, the spacing between two LEDs can not be too big, cause the usage quantity of LED more, finally cause cost to improve.
Adopt the mode of light source by special-shaped LGP illuminated portion panel, different instrument constitutions often needs difform LGP, therefore need make forming mould at heteroid instrument design, causes cost to improve.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of instrument backlighting arrangement, can solve the problem that light utilization efficiency is low in the prior art, cost is high.
For achieving the above object, the invention provides following technical scheme:
A kind of instrument backlighting arrangement comprises: light source and optical fibers;
Described optical fibers needs the illuminated area setting along instrument face plate between the instrument face plate and panel rack of described instrument;
Described light source is arranged at the end face of described fiber-optic first end and/or second end.
Preferably, in said apparatus, further comprise the reflector that is arranged between described optical fibers and the described panel rack.
Preferably, in said apparatus, the side relative with described optical fibers on the described reflector is the white face through mirror process.
Preferably, in said apparatus, described light source is LED.
Preferably, in said apparatus, the center of described LED and the axis coinciding of described fiber-optic end face.
Preferably, in said apparatus, described fiber-optic quantity is a plurality of.
Preferably, in said apparatus, the axis coinciding of the end face of the fibre-optic bundle that the center of described LED and described a plurality of optical fibers form.
This shows, in instrument backlighting arrangement disclosed by the invention, the light that light source sends transmits in optical fibers, because optical fibers is to be provided with along the zone that needs in the instrument face plate to illuminate, so only illuminating, the light that penetrates from the optical fibers wall needs the zone illuminated the instrument face plate, and other zones can not be illuminated, and have improved light utilization efficiency; And instrument backlighting arrangement disclosed by the invention only need be provided with 1～2 light source, and need not to use LGP, reduced cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention, to do simple introduction to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of instrument backlighting arrangement disclosed by the invention;
Fig. 2 is the mounting structure scheme drawing of instrument backlighting arrangement shown in Figure 1 in instrument;
Fig. 3 is the mounting structure scheme drawing of instrument backlighting arrangement shown in Figure 1 in instrument;
Fig. 4 is the structural representation of another kind of instrument backlighting arrangement disclosed by the invention;
Fig. 5 is a kind of light source disclosed by the invention and fiber-optic position view;
Fig. 6 is another kind of light source disclosed by the invention and fiber-optic position view.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making under the creative work prerequisite, and the every other embodiment that is obtained belongs to protection domain of the present invention.
The invention discloses a kind of instrument backlighting arrangement, can solve the problem that light utilization efficiency is low in the prior art, cost is high.
Referring to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structural representation of a kind of instrument backlighting arrangement disclosed by the invention, Fig. 2 is the partial installation structural representation of instrument backlighting arrangement shown in Figure 1 in instrument, and Fig. 3 is the mounting structure scheme drawing of instrument backlighting arrangement shown in Figure 1 in instrument.
This instrument backlighting arrangement comprises: optical fibers 1 and light source 2.
Wherein, optical fibers 1 is between the instrument face plate 31 and panel rack 32 of instrument, and optical fibers 1 needs the illuminated area setting along instrument face plate 31.What usually need in the instrument face plate 31 to illuminate is the calibrated disc of pointer, because optical fibers 1 has good toughness, flexible characteristics, so can optical fibers 1 be set along the calibrated disc bending of pointer.
In force, can light source 2 be set respectively at the end face at optical fibers 1 two ends, also can light source 2 be set a end face, for example can light source 2 be set, can light source 2 be set at second end 12 of optical fibers 1 at first end 11 of optical fibers 1 at optical fibers 1 one ends.
Light sends from light source 2, is coupled in the optical fibers 1, and light transmits to the other end along optical fibers 1 body, simultaneously from the uniform injection part light splitter of optical fibers wall, and the zone that the light direct irradiation instrument face plate 31 of the ejaculation that makes progress need illuminate.
It is pointed out that light source 2 is arranged to single light source or is arranged to two light sources, determine by the distance that light need transmit.When the length of optical fibers 1 is bigger, when promptly light needs the distance transmitted far away, can light source 2 all be set at the two ends of optical fibers 1 in optical fibers 1, two light sources promptly are set.Less when the length of optical fibers 1, promptly light needs the distance transmitted more in short-term in optical fibers 1, can be only at any end of optical fibers 1 light source 2 be set all, and single light source promptly is set.
In instrument backlighting arrangement disclosed by the invention, the light that light source 2 sends transmits in optical fibers 1, because optical fibers 1 is to be provided with along the zone that needs in the instrument face plate 31 to illuminate, so only illuminating, the light that penetrates from the optical fibers wall needs the zone illuminated the instrument face plate 31, and other zones can not be illuminated, and have improved light utilization efficiency; And instrument backlighting arrangement disclosed by the invention only need be provided with 1～2 light source 2, and need not to use LGP, reduced cost.
Referring to Fig. 4, Fig. 4 is the structural representation of another kind of instrument backlighting arrangement disclosed by the invention.
This instrument backlighting arrangement comprises: optical fibers 1, light source 2 and reflector 4.
Wherein, between the instrument face plate 31 of instrument and panel rack 32, set gradually optical fibers 1 and reflector 4, and optical fibers 1 needs the illuminated area setting along instrument face plate 31.In force, can light source 2 be set respectively at the end face at optical fibers 1 two ends, also can light source 2 be set a end face, for example can light source 2 be set, can light source 2 be set at second end 12 of optical fibers 1 at first end 11 of optical fibers 1 at optical fibers 1 one ends.
Light sends from light source 2, be coupled in the optical fibers 1, light transmits to the other end along optical fibers 1 body, simultaneously from the uniform injection part light splitter of optical fibers wall, the zone that to illuminate of the light direct irradiation instrument face plate 31 that penetrates upwards, the light that penetrates is reflected again by luminous plaque 4 and enters in the optical fibers 1 downwards, perhaps directly reflexes to the zone that instrument face plate 31 need illuminate.
After the bottom of optical fibers 1 is provided with reflector 4, can further improves light utilization efficiency, and can improve the brightness that instrument face plate 31 needs illuminated area.
In force, reflector 4 and optical fibers 1 a relative side is set to the white face through mirror process, the upper side that is reflector 4 is arranged to the white light sliding surface, its objective is that reduction is transmitted into the loss of the light on the reflector 4 from optical fibers 1, make more rays can reflex to the illuminated area that needs of optical fibers 1 or instrument face plate 31, improve the degree of utilization of light and the brightness that instrument face plate 31 needs illuminated area by reflector 4.
In above-mentioned disclosed each instrument backlighting arrangement, light source 2 adopts LED, compares with other light sources, and LED is a cold light source, and has optically focused degree preferably.
In force, in order to improve the degree of utilization of light, can be by following technological means: adopt the less LED of the angle of divergence as light source 2; The axis coinciding of the end face of the center of LED and optical fibers 1 is set; The end face of the as far as possible close optical fibers 1 of LED is set.
In addition, the quantity of optical fibers 1 can be for a plurality of, when the quantity of optical fibers 1 more for a long time, the scope that can illuminate is bigger.Therefore can determine the quantity of optical fibers 1 in the instrument backlighting arrangement disclosed by the invention according to the range size that needs in the instrument illuminate, a plurality of optical fiberses 1 form fibre-optic bundle.
In force, in order to improve the degree of utilization of light, can be by following technological means: adopt the less LED of the angle of divergence as light source 2; The center of LED and the axis coinciding of the end face of the fibre-optic bundle that is formed by a plurality of optical fiberses 1 are set; LED is set to try one's best near the end face of the fibre-optic bundle that is formed by a plurality of optical fiberses 1.
In instrument backlighting arrangement disclosed by the invention, can adopt vertical irradiation (as shown in Figure 5) between light source 2 and the optical fibers 1, also can adopt side-irradiation (as shown in Figure 6), concrete mode is determined according to different space requirements.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
Claims (7)
1. an instrument backlighting arrangement is characterized in that, comprising: light source and optical fibers;
Described optical fibers needs the illuminated area setting along instrument face plate between the instrument face plate and panel rack of described instrument;
Described light source is arranged at the end face of described fiber-optic first end and/or second end.
2. device according to claim 1 is characterized in that, further comprises the reflector that is arranged between described optical fibers and the described panel rack.
3. device according to claim 2 is characterized in that, the side relative with described optical fibers on the described reflector is the white face through mirror process.
4. according to each described device in the claim 1 to 3, it is characterized in that described light source is the LED light-emitting diode.
5. device according to claim 4 is characterized in that, the center of described LED and the axis coinciding of described fiber-optic end face.
6. device according to claim 4 is characterized in that, described fiber-optic quantity is a plurality of.
7. device according to claim 6 is characterized in that, the axis coinciding of the end face of the fibre-optic bundle that the center of described LED and described a plurality of optical fibers form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620236 CN102092340A (en) | 2010-12-31 | 2010-12-31 | Instrument backlight illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620236 CN102092340A (en) | 2010-12-31 | 2010-12-31 | Instrument backlight illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102092340A true CN102092340A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010620236 Pending CN102092340A (en) | 2010-12-31 | 2010-12-31 | Instrument backlight illumination device |
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| Country | Link |
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| CN (1) | CN102092340A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878519A (en) * | 2012-08-22 | 2013-01-16 | 杭州广安汽车电器有限公司 | Automobile air-conditioning controller backlight system |
| CN105487162A (en) * | 2014-09-30 | 2016-04-13 | 大陆汽车系统公司 | Flexible light guide for vehicle display applications |
| WO2016197534A1 (en) * | 2015-06-09 | 2016-12-15 | 京东方科技集团股份有限公司 | Instrument backlight source, operating method thereof and instrument |
| CN109254345A (en) * | 2018-11-19 | 2019-01-22 | 京东方科技集团股份有限公司 | Light guide plate and preparation method thereof, backlight module, display module and terminal |
| CN112805142A (en) * | 2018-12-21 | 2021-05-14 | 宝马股份公司 | Motor vehicle component with lighting function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523643Y (en) * | 2001-11-30 | 2002-12-04 | 台湾山叶发动机研究开发中心股份有限公司 | Meter with background lighting |
| CN2823045Y (en) * | 2005-07-18 | 2006-10-04 | 王景鸿 | Structure for light indicating of instrument |
| CN201589167U (en) * | 2009-12-02 | 2010-09-22 | 延锋伟世通汽车电子有限公司 | Back lighting device of automobile instrument panel |
-
2010
- 2010-12-31 CN CN 201010620236 patent/CN102092340A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523643Y (en) * | 2001-11-30 | 2002-12-04 | 台湾山叶发动机研究开发中心股份有限公司 | Meter with background lighting |
| CN2823045Y (en) * | 2005-07-18 | 2006-10-04 | 王景鸿 | Structure for light indicating of instrument |
| CN201589167U (en) * | 2009-12-02 | 2010-09-22 | 延锋伟世通汽车电子有限公司 | Back lighting device of automobile instrument panel |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878519A (en) * | 2012-08-22 | 2013-01-16 | 杭州广安汽车电器有限公司 | Automobile air-conditioning controller backlight system |
| CN105487162A (en) * | 2014-09-30 | 2016-04-13 | 大陆汽车系统公司 | Flexible light guide for vehicle display applications |
| WO2016197534A1 (en) * | 2015-06-09 | 2016-12-15 | 京东方科技集团股份有限公司 | Instrument backlight source, operating method thereof and instrument |
| US9975478B2 (en) | 2015-06-09 | 2018-05-22 | Boe Technology Group Co., Ltd. | Backlight source for instrument, its operating method, and instrument |
| CN109254345A (en) * | 2018-11-19 | 2019-01-22 | 京东方科技集团股份有限公司 | Light guide plate and preparation method thereof, backlight module, display module and terminal |
| CN109254345B (en) * | 2018-11-19 | 2020-04-21 | 京东方科技集团股份有限公司 | Light guide plate and manufacturing method thereof, backlight module, display module and terminal |
| WO2020103547A1 (en) * | 2018-11-19 | 2020-05-28 | 京东方科技集团股份有限公司 | Light guide plate and fabrication method therefor, backlight module, display device and terminal |
| US11086067B2 (en) | 2018-11-19 | 2021-08-10 | Beijing Boe Optoelectronics Technology Co., Ltd | Display backlight module having light guide plate with through hole and embedded optic fibers |
| CN112805142A (en) * | 2018-12-21 | 2021-05-14 | 宝马股份公司 | Motor vehicle component with lighting function |
| US11813980B2 (en) | 2018-12-21 | 2023-11-14 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle component with lighting function |
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Application publication date: 20110615 |