CN103775973A - Light guide rod structure - Google Patents
Light guide rod structure Download PDFInfo
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- CN103775973A CN103775973A CN201210413790.7A CN201210413790A CN103775973A CN 103775973 A CN103775973 A CN 103775973A CN 201210413790 A CN201210413790 A CN 201210413790A CN 103775973 A CN103775973 A CN 103775973A
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- reflecting layer
- light
- guide rod
- rod structure
- guide
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Abstract
The invention discloses a light guide rod structure. The light guide rod structure comprises a light guide rod and a plurality of first reflecting layers, wherein one end of the light guide rod is provided with a first light inlet surface, the first reflecting layers are formed on the light guide rod in an axial series connection mode, and each first reflecting layer is formed by extending from the position close to the first light inlet surface to the position away from the first light inlet surface in a gradually-widening mode. In this way, the light guide rod structure can effectively solve the problem that due to the increase of the width of the reflecting layers, a light guide rod structure becomes poor in illuminating light uniformity and the two ends of a light guide rod are too bright, and therefore the illuminating quality of the light guide rod structure is improved.
Description
Technical field
The present invention relates to a kind of light-guide rod structure, particularly relate to and a kind ofly there are multiple reflecting layer and be formed at the light-guide rod structure on lamp guide in the mode of width gradual change.
Background technology
The at present common fluorescent tube equipment that is used for illumination uses fluorescent tube as illuminating source, but in recent years in order to meet environmental protection and energy-conservation demand, by lamp guide and light emitting diode (the Light Emitting Diode being arranged on the two ends of lamp guide, LED) light-emitting device forming replaces fluorescent tube gradually, its luminescent designs is mainly to utilize light that the reflective layer reflects light emitting diode on lamp guide launches to penetrate from lamp guide, the relevant design in reflecting layer can be as shown in Figures 1 and 2, Fig. 1 is the side view of a light-guide rod structure 10 of prior art, Fig. 2 is the front view of the light-guide rod structure 10 of Fig. 1.From Fig. 1 and Fig. 2, light-guide rod structure 10 comprises a lamp guide 12 and a reflecting layer 14.Reflecting layer 14 axially extends to form in the bottom side of lamp guide 12 along the periphery of lamp guide 12, is used for reflecting light in lamp guide 12 to penetrate from lamp guide 12, thereby the illumination with adequate brightness is provided.
But, from Fig. 1 and Fig. 2, light-guide rod structure 10 adopts individual reflection layer 14 to have the design of even width, under this design, if adopting further, light-guide rod structure 10 increases the width in reflecting layer 14 so that the center of circle angle [alpha] of the corresponding lamp guide 12 in reflecting layer 14 becomes greatly the design of (as being greater than 90 °) to expand its integral illumination scope thereupon, because the reflecting layer area on lamp guide 12 also can increase accordingly, and then make light-guide rod structure 10 occur the excessively bright problem in two ends of illuminating ray uniformity variation and lamp guide 12.
Summary of the invention
One of object of the present invention is to provide a kind of to be had multiple reflecting layer and is formed at the light-guide rod structure on lamp guide in the mode of width gradual change, to solve the above problems.
The invention provides a kind of light-guide rod structure and comprise a lamp guide and multiple the first reflecting layer.One end of described lamp guide has one first incidence surface.Described multiple the first reflecting layer is formed on described lamp guide in the mode being axially connected in series, and each first reflecting layer approaches the past position away from described the first incidence surface, position of described the first incidence surface certainly to be extended to form by narrow extremely wide mode.
The center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the first reflecting layer can be greater than 90 °.
The size in each the first reflecting layer can be identical.
The other end of described lamp guide can have one second incidence surface, described light-guide rod structure can also comprise multiple the second reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each second reflecting layer approaches the past position away from described the second incidence surface, position of described the second incidence surface certainly to be extended to form by narrow extremely wide mode.
The center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the second reflecting layer can be greater than 90 °.
The size in each the second reflecting layer can be identical.
Described light-guide rod structure can also comprise a central reflecting layer, and it is formed on the position of a central point of corresponding described lamp guide and is connected between corresponding the first reflecting layer and the second reflecting layer.
Described central reflecting layer can form toward the cumulative mode of the described central point of described lamp guide by its width.
The present invention also provides a kind of light-guide rod structure to comprise a lamp guide and multiple the first reflecting layer.One end of described lamp guide has one first incidence surface.Described multiple the first reflecting layer is formed on described lamp guide in the mode being axially connected in series, and each first reflecting layer approaches the past position away from described the first incidence surface, position of described the first incidence surface certainly to be extended to form by wide extremely narrow mode.
The other end of described lamp guide can have one second incidence surface, described light-guide rod structure can also comprise multiple the second reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each second reflecting layer approaches the past position away from described the second incidence surface, position of described the second incidence surface certainly to be extended to form by wide extremely narrow mode.
According to technique scheme, the present invention at least has following advantages and beneficial effect compared to prior art: the present invention adopts multiple reflecting layer to be formed at the design on lamp guide in the mode of width gradual change, the reflecting layer area being touched in lamp guide to reduce accordingly the light of light emitting diode, thus, even adopt and increase the design of reflecting layer width to expand its integral illumination scope at light-guide rod structure, now, the reflecting layer area touching in lamp guide due to the light of light emitting diode still can be cumulative by above-mentioned reflecting layer width or design decrescence and reduction accordingly, therefore, the present invention can improve the excessively bright problem in two ends that illuminating ray uniformity variation and lamp guide appear in the light-guide rod structure causing because of the cause of increase reflecting layer width effectively, thereby promote the lighting quality that light-guide rod structure can provide.
Accompanying drawing explanation
Fig. 1 is the side view of the light-guide rod structure of prior art;
Fig. 2 is the front view of the light-guide rod structure of Fig. 1;
The schematic perspective view that Fig. 3 is the light-guide rod structure that proposes according to the first embodiment of the present invention;
Fig. 4 is the front view of the light-guide rod structure of Fig. 3;
The top view that Fig. 5 is the light-guide rod structure that proposed according to a second embodiment of the present invention; And
The top view of the light-guide rod structure that Fig. 6 proposes for a third embodiment in accordance with the invention.
Wherein, description of reference numerals is as follows:
12,102 lamp guide 14 reflecting layer
108 first incidence surface 110 second incidence surfaces
112 central reflecting layer α, β lighting angle
O central point
10,100,100 ', 100 " light-guide rod structure
104,104 ', 104 " the first reflecting layer
106,106 ', 106 " the second reflecting layer
The specific embodiment
Please refer to Fig. 3 and Fig. 4, the schematic perspective view of the light-guide rod structure 100 that Fig. 3 proposes for one first embodiment according to the present invention, the front view of the light-guide rod structure 100 that Fig. 4 is Fig. 3.On the lighting apparatus of the design of the light emitting diode at least one end that light-guide rod structure 100 can be applicable to adopt lamp guide and be arranged at lamp guide, be used for receiving light that light emitting diode launches so that uniform illumination to be provided, as shown in Figures 3 and 4, light-guide rod structure 100 comprises a lamp guide 102, multiple the first reflecting layer 104, and multiple the second reflecting layer 106.The two ends of lamp guide 102 have respectively one first incidence surface 108 and one second incidence surface 110, and the light that light emitting diode is launched can be via the first incidence surface 108 and the second incidence surface 110 and is incident in lamp guide 102.
In this embodiment, multiple the first reflecting layer 104 and multiple the second reflecting layer 106 are preferably formed on lamp guide 102 in the mode being axially connected in series, each first reflecting layer 104 approaches the past position away from the first incidence surface 108, position of the first incidence surface 108 certainly to be extended to form by narrow extremely wide mode, each second reflecting layer 106 is certainly to approach accordingly the past position away from the second incidence surface 110, position of the second incidence surface 110 to be extended to form by narrow extremely wide mode, wherein the size in each the first reflecting layer 104 is identical, but not limit by this, that is to say, each first reflecting layer 104 also can adopt from the design of other the first reflecting layer 104 different sizes and be formed on lamp guide 102, similarly, the size in each the second reflecting layer 106 also can be same to each other or different to each other.Come Said for example, the size in the first reflecting layer 104 and the second reflecting layer 106, can adopt the design increasing towards centre, so that the uniformity of lamp guide 102 is better.In practical application, lamp guide 102 and the first reflecting layer 104 and the second reflecting layer 106 can preferably utilize the mode of extrusion molding one-body molded (but not limit by this), linearly shape of the outline in each the first reflecting layer 104, and the center of circle angle beta of the corresponding lamp guide 102 of the Breadth Maximum in each the first reflecting layer 104 is preferably more than 90 ° (as shown in Figure 4), to bring into play effect of the lighting angle that expands lamp guide 102.Should be noted, above-mentioned design also can be applicable on each second reflecting layer 106, also be just Said, the outline in each the second reflecting layer 106 can be similarly shape linearly, and the center of circle angle of the corresponding lamp guide 102 of the Breadth Maximum in each the second reflecting layer 106 can be greater than 90 ° accordingly.In addition, as shown in Figure 3, light-guide rod structure 100 can also comprise a central reflecting layer 112, central authorities reflecting layer 112 is formed on the position of a central point O of corresponding lamp guide 102 and is connected in that between the first corresponding reflecting layer 104 and the second reflecting layer 106, (what should be specified is, the first corresponding reflecting layer 104 and the second reflecting layer 106 mentioned herein, be not limited to be adjacent in Fig. 3 the first reflecting layer 104 and second reflecting layer 106 of 112 both sides, central reflecting layer, that is to say, in another embodiment, central authorities reflecting layer can be also that the central reflecting layer 112 of Fig. 3 adds its both sides next-door neighbour and corresponding the first reflecting layer 104 and the second reflecting layer 106).In this embodiment, central authorities reflecting layer 112 adopts wide design and is formed on lamp guide 102, but not limit by this, it also can change the cumulative mode of employing width and form, in more detail, in another embodiment, central authorities reflecting layer 112 can change with its width and form (for example forming the rhomboid shape of class etc.) to increase its reflective surface area toward the cumulative mode of the central point O of lamp guide 102, thereby make lamp guide 102 on the position of corresponding central point O, occur more light reflection, to improve further the situation of lamp guide Strehl ratio deficiency in the past.
By above-mentioned configuration, adopt individual reflection layer to there is the design of even width compared to prior art, when light emitting diode emission of light in lamp guide 102 when being incident to respectively the first reflecting layer 104 and the second reflecting layer 106, light-guide rod structure 100 can utilize each first reflecting layer 104 and each the second reflecting layer 106 relative the first incidence surface 108 and the second incidence surface 110 and be formed at the multistage reflecting layer serial connection design on lamp guide 102 to wide by narrow respectively, with the light that reduces accordingly light emitting diode at the interior reflecting layer area being touched of lamp guide 102.Thus, for example, even adopt the design of the width (increasing the Breadth Maximum in the first reflecting layer 104 and the second reflecting layer 106 etc.) that increases the first reflecting layer 104 and the second reflecting layer 106 to expand its integral illumination scope at light-guide rod structure 100, now, because the light of light emitting diode still can the reduction accordingly by above-mentioned the first reflecting layer 104 and the second cumulative design of reflecting layer 106 width at interior the touched reflecting layer area of lamp guide 102, therefore, the present invention can improve the excessively bright problem in two ends that illuminating ray uniformity variation and lamp guide appear in the light-guide rod structure causing because of the cause of increase reflecting layer width effectively, wherein, in practical experience, compared to prior art, the light uniformity that light-guide rod structure 100 provides can relatively promote 42 ﹪.
It is worth mentioning that, the structural design in the first reflecting layer and the second reflecting layer can be not limited to above-described embodiment, for instance, please refer to Fig. 5, the top view of its light-guide rod structure 100 ' proposing for one second embodiment according to the present invention, assembly described in the second embodiment is numbered identical person with the assembly described in the first embodiment, represents that it has similar function or structure, repeats no more in this.Light-guide rod structure 100 differences of light-guide rod structure 100 ' and the first embodiment are the structural design in the first reflecting layer and the second reflecting layer.As shown in Figure 5, light-guide rod structure 100 ' comprises a lamp guide 102, multiple the first reflecting layer 104 ', and multiple the second reflecting layer 106 ', the two ends of lamp guide 102 have respectively the first incidence surface 108 and the second incidence surface 110, different from above-described embodiment is, in this embodiment, each first reflecting layer 104 ' approaches the past position away from the first incidence surface 108, position of the first incidence surface 108 certainly to be extended to form by wide extremely narrow mode, each second reflecting layer 106 ' is certainly to approach accordingly the past position away from the second incidence surface 110, position of the second incidence surface 110 to be extended to form by wide extremely narrow mode.In practical application, lamp guide 102 and the first reflecting layer 104 ' and the second reflecting layer 106 ' can preferably utilize the mode of extrusion molding one-body molded (but not limit by this), the linearly shape of outline in each first reflecting layer 104 ' and each the second reflecting layer 106 ', and the center of circle angle of the corresponding lamp guide 102 of the Breadth Maximum in each first reflecting layer 104 ' and each the second reflecting layer 106 ' preferably can be greater than 90 °, to bring into play effect of the lighting angle that expands lamp guide 102.In addition, the design of the design of first and second reflecting layer size mentioned in the first embodiment identical (or different) and the definition in central reflecting layer, central reflecting layer wide (or its width is cumulative toward lamp guide central point) also can be applicable in the second embodiment, its associated description can be analogized with reference to the first embodiment, repeats no more in this.
By above-mentioned configuration, adopt individual reflection layer to there is the design of even width compared to prior art, when light emitting diode emission of light in lamp guide 102 when being incident to respectively the first reflecting layer 104 ' and the second reflecting layer 106 ', light-guide rod structure 100 ' can utilize each first reflecting layer 104 ' and each the second reflecting layer 106 ' relative the first incidence surface 108 and the second incidence surface 110 and be formed at the multistage reflecting layer serial connection design on lamp guide 102 to narrow by wide respectively, with the light that reduces accordingly light emitting diode at the interior reflecting layer area being touched of lamp guide 102, thus, for example, even adopt the design of the width (increasing the Breadth Maximum in the first reflecting layer 104 ' and the second reflecting layer 106 ' etc.) that increases the first reflecting layer 104 ' and the second reflecting layer 106 ' to expand its integral illumination scope at light-guide rod structure 100 ', now, still can be by the design decrescence of above-mentioned the first reflecting layer 104 ' and the second reflecting layer 106 ' width at interior the touched reflecting layer area of lamp guide 102 due to the light of light emitting diode and dwindle accordingly, therefore, light-guide rod structure 100 ' also can improve the excessively bright problem in two ends that illuminating ray uniformity variation and lamp guide appear in the light-guide rod structure causing because of the cause of increase reflecting layer width effectively.
In addition, the area in above-mentioned each reflecting layer can by change reflecting layer outline mode and effect of positively improving the excessively bright situation in the two ends of above-mentioned illuminating ray uniformity variation and lamp guide is brought into play in increase and decrease to some extent to finely tune the area in each reflecting layer.For instance, please refer to Fig. 6, its light-guide rod structure 100 for proposing according to of the present invention 1 the 3rd embodiment " top view, the assembly described in the 3rd embodiment is numbered identical person with the assembly described in the first embodiment; represent that it has similar function or structure, repeats no more in this.Light-guide rod structure 100 " be that with the light-guide rod structure 100 main difference parts of the first embodiment the outline in the first reflecting layer and the second reflecting layer designs.As shown in Figure 6, light-guide rod structure 100 " comprise a lamp guide 102, multiple the first reflecting layer 104 ", and multiple the second reflecting layer 106 ", the two ends of lamp guide 102 have respectively the first incidence surface 108 and the second incidence surface 110, different from the first embodiment is, in this embodiment, each first reflecting layer 104 " with each second reflecting layer 106 " outline be laterally bending arc line shaped, but not limit by this, that is to say, as long as changing the outline in reflecting layer with the design of increase or minimizing reflecting layer area, for example each first reflecting layer 104 " with each second reflecting layer 106 " outline change the arc line shaped that is to the inside bending etc., it all belongs to protection scope of the present invention.In addition, the design of the design of first and second reflecting layer size mentioned in the first embodiment identical (or different) and the definition in central reflecting layer, central reflecting layer wide (or its width is cumulative toward lamp guide central point) also can be applicable in the 3rd embodiment, its associated description can be analogized with reference to the first embodiment, repeats no more in this.
In addition, the second mentioned reflecting layer of above-described embodiment is an omissible configuration, to simplify the overall construction design of light-guide rod structure of the present invention, that is to say, light-guide rod structure of the present invention can only dispose multiple the first reflecting layer to be axially connected in series and the mode of width gradual change is formed at the design on lamp guide and changes providing illumination from the mode of the monolateral light inlet of the first incidence surface into.
Compared to prior art, the present invention adopts multiple reflecting layer to be formed at the design on lamp guide in the mode of width gradual change, the reflecting layer area being touched in lamp guide to reduce accordingly the light of light emitting diode, thus, even adopt and increase the design of reflecting layer width to expand its integral illumination scope at light-guide rod structure, now, the reflecting layer area touching in lamp guide due to the light of light emitting diode still can be cumulative by above-mentioned reflecting layer width or design decrescence and reduction accordingly, therefore, the present invention can improve the excessively bright problem in two ends that illuminating ray uniformity variation and lamp guide appear in the light-guide rod structure causing because of the cause of increase reflecting layer width effectively, thereby promote the lighting quality that light-guide rod structure can provide.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a light-guide rod structure, is characterized in that, described light-guide rod structure comprises:
One lamp guide, its one end has one first incidence surface; And
Multiple the first reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each first reflecting layer approaches the past position away from described the first incidence surface, position of described the first incidence surface certainly to be extended to form by narrow extremely wide mode.
2. light-guide rod structure as claimed in claim 1, is characterized in that, the center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the first reflecting layer is greater than 90 °.
3. light-guide rod structure as claimed in claim 1, is characterized in that, the size in each the first reflecting layer is identical.
4. light-guide rod structure as claimed in claim 1, it is characterized in that, the other end of described lamp guide has one second incidence surface, described light-guide rod structure also comprises multiple the second reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each second reflecting layer approaches the past position away from described the second incidence surface, position of described the second incidence surface certainly to be extended to form by narrow extremely wide mode.
5. light-guide rod structure as claimed in claim 4, is characterized in that, the center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the second reflecting layer is greater than 90 °.
6. light-guide rod structure as claimed in claim 4, is characterized in that, the size in each the second reflecting layer is identical.
7. light-guide rod structure as claimed in claim 4, it is characterized in that, described light-guide rod structure also comprises: a central reflecting layer, it is formed on the position of a central point of corresponding described lamp guide and is connected between corresponding the first reflecting layer and the second reflecting layer.
8. light-guide rod structure as claimed in claim 7, is characterized in that, described central reflecting layer forms toward the cumulative mode of the described central point of described lamp guide with its width.
9. a light-guide rod structure, is characterized in that, described light-guide rod structure comprises:
One lamp guide, its one end has one first incidence surface; And
Multiple the first reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each first reflecting layer approaches the past position away from described the first incidence surface, position of described the first incidence surface certainly to be extended to form by wide extremely narrow mode.
10. light-guide rod structure as claimed in claim 9, is characterized in that, the center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the first reflecting layer is greater than 90 °.
11. light-guide rod structures as claimed in claim 9, it is characterized in that, the other end of described lamp guide has one second incidence surface, described light-guide rod structure also comprises multiple the second reflecting layer, it is formed on described lamp guide in the mode being axially connected in series, and each second reflecting layer approaches the past position away from described the second incidence surface, position of described the second incidence surface certainly to be extended to form by wide extremely narrow mode.
12. light-guide rod structures as claimed in claim 11, is characterized in that, the center of circle angle of the corresponding described lamp guide of Breadth Maximum in each the second reflecting layer is greater than 90 °.
13. light-guide rod structures as claimed in claim 11, is characterized in that, described light-guide rod structure also comprises:
One central reflecting layer, it is formed on the position of a central point of corresponding described lamp guide and is connected between corresponding the first reflecting layer and the second reflecting layer.
14. light-guide rod structures as claimed in claim 13, is characterized in that, described central reflecting layer forms toward the cumulative mode of the described central point of described lamp guide with its width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413790.7A CN103775973A (en) | 2012-10-25 | 2012-10-25 | Light guide rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413790.7A CN103775973A (en) | 2012-10-25 | 2012-10-25 | Light guide rod structure |
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| Publication Number | Publication Date |
|---|---|
| CN103775973A true CN103775973A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210413790.7A Pending CN103775973A (en) | 2012-10-25 | 2012-10-25 | Light guide rod structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781679A (en) * | 2017-10-19 | 2018-03-09 | 宁波艾森光电科技有限公司 | A kind of electronic fluorescent sticks |
| CN107869665A (en) * | 2016-09-27 | 2018-04-03 | 广州达森灯光股份有限公司 | Guide-lighting terrace with edge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961633A (en) * | 1995-08-24 | 1997-03-07 | Matsushita Electric Ind Co Ltd | Linear lighting device |
| US20050242085A1 (en) * | 2001-07-03 | 2005-11-03 | Matsushita Electric Industrial Co., Ltd. | Line type luminous device and induction heating cooker employing same |
| JP2010011249A (en) * | 2008-06-30 | 2010-01-14 | Rohm Co Ltd | Light guide and image sensor module |
| CN201561291U (en) * | 2009-09-15 | 2010-08-25 | 一品光学工业股份有限公司 | Linear light source having light guide body with prismatic rib-like reflection surface |
| CN102455457A (en) * | 2010-10-18 | 2012-05-16 | 联胜（中国）科技有限公司 | Light guide pillar |
-
2012
- 2012-10-25 CN CN201210413790.7A patent/CN103775973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961633A (en) * | 1995-08-24 | 1997-03-07 | Matsushita Electric Ind Co Ltd | Linear lighting device |
| US20050242085A1 (en) * | 2001-07-03 | 2005-11-03 | Matsushita Electric Industrial Co., Ltd. | Line type luminous device and induction heating cooker employing same |
| JP2010011249A (en) * | 2008-06-30 | 2010-01-14 | Rohm Co Ltd | Light guide and image sensor module |
| CN201561291U (en) * | 2009-09-15 | 2010-08-25 | 一品光学工业股份有限公司 | Linear light source having light guide body with prismatic rib-like reflection surface |
| CN102455457A (en) * | 2010-10-18 | 2012-05-16 | 联胜（中国）科技有限公司 | Light guide pillar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869665A (en) * | 2016-09-27 | 2018-04-03 | 广州达森灯光股份有限公司 | Guide-lighting terrace with edge |
| CN107781679A (en) * | 2017-10-19 | 2018-03-09 | 宁波艾森光电科技有限公司 | A kind of electronic fluorescent sticks |
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Application publication date: 20140507 |