CN202174986U - Light guide structure for automotive dashboard - Google Patents
Light guide structure for automotive dashboard Download PDFInfo
- Publication number
- CN202174986U CN202174986U CN2011202456171U CN201120245617U CN202174986U CN 202174986 U CN202174986 U CN 202174986U CN 2011202456171 U CN2011202456171 U CN 2011202456171U CN 201120245617 U CN201120245617 U CN 201120245617U CN 202174986 U CN202174986 U CN 202174986U
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- light
- light guide
- leaded light
- shaped
- eccentric circular
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Abstract
A light guide structure for an automotive dashboard comprises a transparent body including two light guide columns and two sector rings. The two light guide columns are positioned on the same straight line and arranged at an interval, a wedge-shaped groove is arranged on the top surface of each light guide column, the section of each light guide column is in the shape of an isosceles trapezoid, the section of each wedge-shaped is V-shaped, the two sector rings are symmetrically connected to the left sides and the right sides of the light guide columns, a V-shaped included angle is formed between the two sector rings, more than two small pits are arranged on the lower surface of each sector ring, and the projection of the transparent body passing through the bottom surface of each light guide column on the horizontal plane in ring-shaped. Light can be transmitted into the sector rings by utilizing the light guide columns to transmit incident light from light-emitting diodes and utilizing wedge-shaped sections on the tops of the light guide columns to generate total reflection, and then the light shines out from the upper surfaces of the sector rings by utilizing the small pits to change the propagation path of the light in the sector rings, so that illumination uniformity and luminance are improved remarkably, use amount of the light-emitting diodes is greatly decreased, and cost is reduced.
Description
Technical field
The utility model relates to physical field, the lighting engineering of auto meter especially, particularly a kind of automobile instrument panel light conductor structure.
Background technology
In the prior art, the lighting system of auto meter dial plate is to use the illumination of light-emitting diode direct backlight.Because the auto meter dial plate is a bigger zone; And the lighting angle of light-emitting diode is limited; Have stronger directivity, the printing that therefore needs to use more light-emitting diode and combine the dial plate back side remedies and all thrown light on uniformly in whole dial plate zone.In addition; Present light conductor is the interference of avoiding the light illumination that light-emitting diode directly sends, need light-emitting diode be placed outside the light area, though can guarantee the homogeneity of illumination like this; But greatly reduce the degree of utilization of light, can't obtain higher brightness.
Summary of the invention
The purpose of the utility model is to provide a kind of automobile instrument panel light conductor structure, and described this automobile instrument panel light conductor structure will solve the technical matters that the auto meter dial illuminance is inhomogeneous in the prior art, light utilization efficiency is low.
This automobile instrument panel light conductor structure of the utility model; Be made up of a transparent body, wherein, the described transparent body has comprised two leaded light posts and two eccentric circular rings; Described two leaded light posts are located on the same line and are spaced; Any leaded light post is provided with a wedge-shaped impression all along described straight-line extension in the end face of leaded light post, described wedge-shaped impression is along being parallel to the direction extension that the leaded light post extends straight line; All be isosceles trapezoid perpendicular to its section that extends straight line in the leaded light post; Wedge-shaped impression is V-shaped in described section, and the opening part width of wedge-shaped impression is greater than the width of going to the bottom of described isosceles trapezoid, and described two eccentric circular ring symmetries are connected the left and right sides of leaded light post; The V-shaped angles in plane at two eccentric circular rings place are provided with the small rut of two above numbers in the downside of any eccentric circular ring.
Further, the described transparent body is being circular through the projection in the horizontal surface of leaded light post bottom surface.
Further, described small rut is semisphere.
Further, in the downside of any eccentric circular ring, the distribution density of small rut increases progressively to the direction away from the leaded light post from the adjacent of eccentric circular ring and leaded light post.
Further, in the downside of any eccentric circular ring, the distribution density of small rut has in the part to be increased or reduces.
The principle of work of the utility model is: the downside at two leaded light posts is provided with a light-emitting diode separately; After the light that light-emitting diode sends gets into the leaded light post from bottom to top; Total internal reflection takes place on the wedge shape tangent plane of leaded light post and get into eccentric circular ring, its direction of propagation becomes horizontal direction, in eccentric circular ring, continues to propagate; And repeatedly total internal reflection takes place at inner each the face place of eccentric circular ring, light is transmitted to light conductor everywhere equably.The semisphere that distributing on light conductor bottom surface small rut, light arrive small rut place change of direction, by penetrating in the eccentric circular ring.Because light penetrates at small rut place on the way when propagating; Then more at a distance apart from light source; The loss of light is big more, and the distribution density of small rut increases progressively to the direction away from the leaded light post from the adjacent of eccentric circular ring and leaded light post, can remedy the inequality that causes light quantity that light conductor everywhere penetrate owing to losing on the way.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model utilizes the leaded light post to transmit the light-emitting diode light of incident, utilizes the wedge shape tangent plane that is arranged on the leaded light column top to produce total internal reflection, and light is delivered in the eccentric circular ring of both sides; Utilize the small rut that is arranged in the eccentric circular ring bottom surface to change light again at eccentric circular ring in-to-in propagation path; Penetrate from the upper side of eccentric circular ring, obviously improved the homogeneity of illumination, and can reach the brightness higher than conventional light conductor; Significantly reduce the usage quantity of light-emitting diode, reduced cost.
Description of drawings
Fig. 1 is the scheme drawing that the auto meter dial plate in the utility model needs the light area.
Fig. 2 is the upper side scheme drawing of the automobile instrument panel light conductor structure of the utility model.
Fig. 3 is the downside scheme drawing of the automobile instrument panel light conductor structure of the utility model.
Fig. 4 is the leaded light schematic diagram of the automobile instrument panel light conductor structure of the utility model.
Fig. 5 is another leaded light schematic diagram of the automobile instrument panel light conductor structure of utility model.
The specific embodiment
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the automobile instrument panel light conductor structure of the utility model is made up of a transparent body; Wherein, The described transparent body has comprised two leaded light posts 2 and two eccentric circular rings 6, and described two leaded light posts 2 are located on the same line and are spaced, and any leaded light post 2 is all along described straight-line extension; Be provided with a wedge-shaped impression 3 in the end face of leaded light post 2; Described wedge-shaped impression 3 all is isosceles trapezoid perpendicular to its section that extends straight line along being parallel to the direction extension that leaded light post 2 extends straight line in the leaded light post 2, and wedge-shaped impression 3 is V-shaped in described section; The opening part width of wedge-shaped impression 3 is greater than the width of going to the bottom of described isosceles trapezoid; Described two eccentric circular ring 6 symmetries are connected the left and right sides of leaded light post 2, and the V-shaped angles in plane at two eccentric circular rings, 6 places are provided with the small rut 4 of two above numbers in the downside of any eccentric circular ring 6.
Further, the described transparent body is being circular through the projection in the horizontal surface of leaded light post 2 bottom surfaces.
Further, described small rut 4 is semisphere.
Further, in the downside of any eccentric circular ring 6, the distribution density of small rut 4 increases progressively to the direction away from leaded light post 2 from the adjacent of eccentric circular ring 6 with leaded light post 2.
The principle of work of present embodiment is: the downside at two leaded light posts 2 is provided with a light-emitting diode 1 separately; After the light that light-emitting diode 1 sends gets into leaded light post 2 from bottom to top; Total internal reflection takes place on the wedge shape tangent plane of leaded light post 2 and get into eccentric circular ring 6, its direction of propagation becomes horizontal direction, in eccentric circular ring 6, continues to propagate; And repeatedly total internal reflection takes place at inner each the face place of eccentric circular ring 6, light is transmitted to light conductor everywhere equably.The semisphere that distributing on light conductor bottom surface small rut 4, light arrives small rut 4 place's change of directions, by penetrating in the eccentric circular ring 6, the dial plate 5 above it is thrown light on.Because light penetrates at small rut 4 places on the way when propagating; Then more at a distance apart from light source; The loss of light is big more; The distribution density of small rut 4 increases progressively to the direction away from leaded light post 2 from eccentric circular ring 6 adjacent with leaded light post 2, and the distribution density at some local small rut increases and decreases to some extent simultaneously, can remedy the inequality that causes light quantity that light conductor everywhere penetrate owing to losing on the way.
Claims (5)
1. automobile instrument panel light conductor structure; Constitute by a transparent body; It is characterized in that: the described transparent body has comprised two leaded light posts and two eccentric circular rings, and described two leaded light posts are located on the same line and are spaced, and any leaded light post is all along described straight-line extension; Be provided with a wedge-shaped impression in the end face of leaded light post; Described wedge-shaped impression all is isosceles trapezoid perpendicular to its section that extends straight line along being parallel to the direction extension that the leaded light post extends straight line in the leaded light post, and wedge-shaped impression is V-shaped in described section; The opening part width of wedge-shaped impression is greater than the width of going to the bottom of described isosceles trapezoid; Described two eccentric circular ring symmetries are connected the left and right sides of leaded light post, and the V-shaped angles in plane at two eccentric circular rings place are provided with the small rut of two above numbers in the downside of any eccentric circular ring.
2. automobile instrument panel light conductor structure as claimed in claim 1 is characterized in that: the described transparent body is being circular through the projection in the horizontal surface of leaded light post bottom surface.
3. automobile instrument panel light conductor structure as claimed in claim 1, it is characterized in that: described small rut is semisphere.
4. automobile instrument panel light conductor structure as claimed in claim 1 is characterized in that: in the downside of any eccentric circular ring, the distribution density of small rut increases progressively to the direction away from the leaded light post from the adjacent of eccentric circular ring and leaded light post.
5. automobile instrument panel light conductor structure as claimed in claim 4 is characterized in that: in the downside of any eccentric circular ring, the distribution density of small rut has in the part to be increased or reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202456171U CN202174986U (en) | 2011-07-13 | 2011-07-13 | Light guide structure for automotive dashboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202456171U CN202174986U (en) | 2011-07-13 | 2011-07-13 | Light guide structure for automotive dashboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174986U true CN202174986U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202456171U Expired - Fee Related CN202174986U (en) | 2011-07-13 | 2011-07-13 | Light guide structure for automotive dashboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174986U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033817A (en) * | 2013-01-21 | 2014-09-10 | 黑拉许克联合股份有限公司 | Lighting Appliance For Vehicles |
| CN104285094A (en) * | 2012-05-10 | 2015-01-14 | Lg伊诺特有限公司 | Lighting device |
| CN105485631A (en) * | 2014-10-06 | 2016-04-13 | 大陆汽车系统公司 | Light propagation and even light distribution using air channels |
| CN105487162A (en) * | 2014-09-30 | 2016-04-13 | 大陆汽车系统公司 | Flexible light guide for vehicle display applications |
| CN107000637A (en) * | 2014-11-28 | 2017-08-01 | 株式会社利富高 | Lighting device and drawer |
| CN107208864A (en) * | 2015-01-15 | 2017-09-26 | 法雷奥照明公司 | One of light guide supports the Vehicular illumination device of another light guide |
| WO2017173821A1 (en) * | 2016-04-05 | 2017-10-12 | 中国商用飞机有限责任公司 | Illumination device for passengers |
| CN108819835A (en) * | 2018-08-07 | 2018-11-16 | 延锋伟世通电子科技（上海）有限公司 | A kind of instrument atmosphere illuminating apparatus |
| CN109131059A (en) * | 2018-07-28 | 2019-01-04 | 霍尔果斯德仁科技有限公司 | A kind of surface has the inside gadget and its production technology of atmosphere lamp effect |
| 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 |
| CN110268312A (en) * | 2017-12-14 | 2019-09-20 | Jvc建伍株式会社 | Liquid crystal illumination device, head-up display and means of illumination |
-
2011
- 2011-07-13 CN CN2011202456171U patent/CN202174986U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285094A (en) * | 2012-05-10 | 2015-01-14 | Lg伊诺特有限公司 | Lighting device |
| CN104033817A (en) * | 2013-01-21 | 2014-09-10 | 黑拉许克联合股份有限公司 | Lighting Appliance For Vehicles |
| CN105487162B (en) * | 2014-09-30 | 2019-05-28 | 大陆汽车系统公司 | Light guide member flexible for vehicle display applications |
| CN105487162A (en) * | 2014-09-30 | 2016-04-13 | 大陆汽车系统公司 | Flexible light guide for vehicle display applications |
| CN105485631A (en) * | 2014-10-06 | 2016-04-13 | 大陆汽车系统公司 | Light propagation and even light distribution using air channels |
| CN105485631B (en) * | 2014-10-06 | 2018-12-25 | 大陆汽车系统公司 | Light and uniform light distribution are propagated using air passage |
| CN107000637A (en) * | 2014-11-28 | 2017-08-01 | 株式会社利富高 | Lighting device and drawer |
| CN107208864A (en) * | 2015-01-15 | 2017-09-26 | 法雷奥照明公司 | One of light guide supports the Vehicular illumination device of another light guide |
| CN107208864B (en) * | 2015-01-15 | 2021-05-28 | 法雷奥照明公司 | Vehicle lighting device in which one light guide supports another light guide |
| WO2017173821A1 (en) * | 2016-04-05 | 2017-10-12 | 中国商用飞机有限责任公司 | Illumination device for passengers |
| CN110268312A (en) * | 2017-12-14 | 2019-09-20 | Jvc建伍株式会社 | Liquid crystal illumination device, head-up display and means of illumination |
| CN110268312B (en) * | 2017-12-14 | 2022-02-11 | Jvc建伍株式会社 | Liquid crystal lighting device, head-up display and lighting method |
| CN109131059A (en) * | 2018-07-28 | 2019-01-04 | 霍尔果斯德仁科技有限公司 | A kind of surface has the inside gadget and its production technology of atmosphere lamp effect |
| CN108819835A (en) * | 2018-08-07 | 2018-11-16 | 延锋伟世通电子科技（上海）有限公司 | A kind of instrument atmosphere illuminating apparatus |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20130713 |