CN103017082B - Prism, runway centerline light and airport navigation aid system - Google Patents
Prism, runway centerline light and airport navigation aid system Download PDFInfo
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- CN103017082B CN103017082B CN201110284069.8A CN201110284069A CN103017082B CN 103017082 B CN103017082 B CN 103017082B CN 201110284069 A CN201110284069 A CN 201110284069A CN 103017082 B CN103017082 B CN 103017082B
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- sawtooth
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- prism
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Abstract
The invention belongs to the technical field of optics and provides a prism, a runway centerline light and an airport navigation aid system. The prism is provided with a light incoming surface and a light outgoing surface. The light incoming surface is provided with a plurality of saw teeth. An included angle alpha between the reference surface of the light incoming surface and the light outgoing surface is 30-45 degrees. By designing the light incoming surface of the prism to be saw-toothed and enabling the included angle alpha between the reference surface of the light incoming surface and the light outgoing surface to be 30-45 degrees, after light emitted by a light source is finely tuned through the included surfaces of the saw teeth, the light enters the prism and then is roughly tuned through the light outgoing surface of the prism, so that the light distribution requirement on the runway centerline light can be satisfied after the light emitted by the low-power light source is tuned by the prism, the height of the runway centerline light above the ground can be reduced and the prism is particularly suitable for the high-standard airport navigation aid system.
Description
Technical field
The invention belongs to optical technical field, particularly relate to a kind of prism, runway center line light and voyage aid of the airport system.
Background technology
Runway center line light system is equidistantly embedded in runway surface along runway centerline, for airborne vehicle take off under night or low visibility situation, landing provides the lamp of guidance by sight.But the light that equal-wattage light source sends is after existing prismatic adjustment, luminous intensity distribution is difficult to reach that airborne vehicle takes off under night or low visibility situation, requirement of landing.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of prism, is intended to solve light that the light source of equal-wattage sends after existing prismatic adjustment, and luminous intensity distribution is difficult to reach that airborne vehicle takes off under night or low visibility situation, the problem required of landing.
The embodiment of the present invention is achieved in that a kind of prism, has incidence surface and exiting surface, and described incidence surface is provided with multiple sawtooth, and the datum level of described incidence surface and the angle α of exiting surface are 30 ~ 45 °.
Another object of the embodiment of the present invention is to provide a kind of runway center line light, and described runway center line light comprises light source and sends the prism of the shooting angle of light in order to adjust described light source, and described prism is above-mentioned prism.
Another object of the embodiment of the present invention is to provide a kind of voyage aid of the airport system, and described voyage aid of the airport system adopts above-mentioned runway center line light.
The incidence surface of prism is designed to zigzag by the embodiment of the present invention, and make the datum level of incidence surface and the angle of exiting surface be 30 ~ 45 °, the light that light source sends enters prism after the fine setting of the inclined-plane of each sawtooth, again via the exiting surface coarse adjustment of prism, thus make light that lower-wattage light source sends after this prismatic adjustment, the light distribution requirements of runway center line light can be reached, and the overhead height of runway center line light can be reduced, especially can be applicable to high-level voyage aid of the airport system.
Accompanying drawing explanation
Fig. 1 is the stereogram of the runway center line light that the embodiment of the present invention provides;
Fig. 2 is the profile of the runway center line light that the embodiment of the present invention provides;
Fig. 3 is the stereogram of the prism that the embodiment of the present invention provides;
Fig. 4 is the cross-sectional view of the prism that the embodiment of the present invention provides;
Fig. 5 is the scheme of erection of runway center line light;
Fig. 6 is the index path of runway center line light;
Fig. 7 is the surface of intensity distribution of the runway center line light that prior art provides;
Fig. 8 is the surface of intensity distribution of the runway center line light that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The incidence surface of prism is designed to zigzag by the embodiment of the present invention, and make the datum level of incidence surface and the angle of exiting surface be 30 ~ 45 °, the light that light source sends enters prism after the fine setting of the inclined-plane of each sawtooth, again via the exiting surface coarse adjustment of prism, thus make light that lower-wattage light source sends after this prismatic adjustment, the light distribution requirements of runway center line light can be reached, and the overhead height of runway center line light can be reduced, especially can be applicable to high-level voyage aid of the airport system.
For 48W runway center line light, realization of the present invention is described in detail below.
As shown in figs. 1 to 6, the runway center line light that the embodiment of the present invention provides comprises light source 1 and sends the prism 2 of the shooting angle of light in order to adjust this light source 1.Wherein prism 2 has incidence surface 21 and exiting surface 22, and this incidence surface 21 is provided with multiple sawtooth 23, and the datum level 24 of this incidence surface is 30 ~ 45 ° with the angle α of exiting surface 22.The light that such light source 1 sends enters prism 2 after the fine setting of the inclined-plane 25 of each sawtooth, again via exiting surface 22 coarse adjustment of prism, thus the light making lower-wattage light source send is after this prism 2 adjusts, the light distribution requirements of runway center line light can be reached, and the overhead height of runway center line light can be reduced, especially can be applicable to high-level voyage aid of the airport system.
Usually, the tooth depth of each sawtooth 23 is set to 0.3 ~ 1mm.The inclined-plane 25 of each sawtooth is 1 ~ 20 ° with the angle β of incidence surface datum level 24, and the size of each angle β is directly proportional to the distance of sawtooth point to exiting surface 22.Sawtooth in this degree of depth and angular range be all beneficial to adjustment incident light enter prism after angle.
In the embodiment of the present invention, ten sawtooth 23 are located at aforementioned incidence surface 21, and the tooth depth of each sawtooth 23 is equal, wherein the inclined-plane of the first sawtooth and the angle β 1 of datum level are 1.5 ~ 2 °, the inclined-plane of the second sawtooth and the angle β 2 of datum level are 3 ~ 4 °, the inclined-plane of the 3rd sawtooth and the angle β 3 of datum level are 6 ~ 8 °, the inclined-plane of the 4th sawtooth and the angle β 4 of datum level are 9 ~ 10 °, the inclined-plane of the 5th sawtooth and the angle β 5 of datum level are 11 ~ 13 °, the inclined-plane of the 6th sawtooth and the angle β 6 of datum level are 13 ~ 15 °, the inclined-plane of the 7th sawtooth and the angle β 7 of datum level are 15.5 ~ 16.2 °, the inclined-plane of the 8th sawtooth and the angle β 8 of datum level are 16.2 ~ 17 °, the inclined-plane of the 9th sawtooth and the angle β 9 of datum level are 17 ~ 18.5 °, the inclined-plane of the tenth sawtooth and the angle β 10 of datum level are 18.5 ~ 19.5 °, the inclined-plane 25 of this first sawtooth is 30 ~ 40 ° with the angle δ of exiting surface 22.The light that equal-wattage light source sends is through this prism 2 transmission, and required light distribution scope is wider.In addition, the refractive power angle of this prism 2 is preferably 50 ~ 60 °.
In addition, the surface be connected with the inclined-plane 25 of sawtooth is machined surface 26, and the angle γ between this machined surface 26 and datum level 24 is 5 ~ 10 °, and this machined surface will contribute to prism 1 processing and forming, and not affect the fine setting of the 25 pairs of incident lights in sawtooth inclined-plane.
Said light source 1 preferably carries the halogen tungsten lamp of investigation on several focus reflectors 11, and the axis of prism 2 is parallel with the optical axis of halogen tungsten lamp, 1 ~ 1.5mm below its optical axis being positioned at halogen tungsten lamp; And the incidence surface 21 of prism is apart from the light-emitting window 128 ~ 12mm of halogen tungsten lamp.After this runway center line light is installed on runway, the optical axis of halogen tungsten lamp and the angle ε on ground 3 are 25 ~ 30 °, the height≤6.35mm of the end face 4 above ground level 3 of runway center line light.
The embodiment of the present invention is chosen two groups of runway center line lights and is carried out simulation test, and first group is the runway center line light with existing prism, second group for the embodiment of the present invention the runway center line light of prism 2 is provided.This prism 2 is the HK51 glass prism adopting tempering, and the tooth depth of each sawtooth 23 is 0.5mm, wherein the inclined-plane 25 of the first sawtooth is 1.8 ° with the angle β 1 of datum level 24, the inclined-plane of the second sawtooth and the angle β 2 of datum level are 3.5 °, the inclined-plane of the 3rd sawtooth and the angle β 3 of datum level are 7 °, the inclined-plane of the 4th sawtooth and the angle β 4 of datum level are 9.5 °, the inclined-plane of the 5th sawtooth and the angle β 5 of datum level are 12 °, the inclined-plane of the 6th sawtooth and the angle β 6 of datum level are 14 °, the inclined-plane of the 7th sawtooth and the angle β 7 of datum level are 16 °, the inclined-plane of the 8th sawtooth and the angle β 8 of datum level are 16.5 °, the inclined-plane of the 9th sawtooth and the angle β 9 of datum level are 18 °, the inclined-plane of the tenth sawtooth and the angle β 10 of datum level are 19 °, the inclined-plane 25 of this first sawtooth is 36 ° with the angle δ of exiting surface 22.
Now select the halogen tungsten lamp of 48W as light source, the axis of prism 2 is parallel with the optical axis of halogen tungsten lamp, 1.5mm below its optical axis being positioned at halogen tungsten lamp; And the incidence surface 21 of prism is apart from the light-emitting window 1210mm of halogen tungsten lamp.After this runway center line light is installed on runway, the optical axis of halogen tungsten lamp and the angle ε on ground are 29 °, and the overhead height of end face of runway center line light is 6.35mm, meets grade III Standard.
After tested, the luminous intensity distribution of second group of runway center line light meets the requirement of international civil aviation industry (ICAO) completely, its light distribution angle: H: ± 5 °, V:0 ~ 9 ° (white, red); Light intensity requirement: average intensity >=5000cd (white light), >=750cd (two-way: white/red), as shown in Figure 8.And the light distribution angle of first group of runway center line light and mean intensity all do not reach requirement, as shown in Figure 7.
The incidence surface of prism is designed to zigzag by the embodiment of the present invention, and make the datum level of incidence surface and the angle of exiting surface be 30 ~ 45 °, the light that light source sends enters prism after the fine setting of the inclined-plane of each sawtooth, again via the exiting surface coarse adjustment of prism, thus make light that lower-wattage light source sends after this prismatic adjustment, the light distribution requirements of runway center line light can be reached, and the overhead height of runway center line light can be reduced, especially can be applicable to high-level voyage aid of the airport system.Simultaneously, the tooth depth of each sawtooth is set to 0.3 ~ 1mm, the inclined-plane of each sawtooth and the angle β of incidence surface datum level are 1 ~ 20 °, and the size of each angle β is directly proportional to the distance of sawtooth point to exiting surface, the sawtooth in this degree of depth and angular range be all beneficial to adjustment incident light enter prism after angle.In addition, the surface be connected with the inclined-plane of sawtooth is machined surface, and the angle between this machined surface and datum level is 5 ~ 10 °, and this machined surface will contribute to prism processing and forming, and does not affect the fine setting of sawtooth inclined-plane to incident light.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a prism, has incidence surface and exiting surface, it is characterized in that, described incidence surface is provided with multiple sawtooth, and the datum level of described incidence surface and the angle α of exiting surface are 30 ~ 45 °; The inclined-plane of each sawtooth and the angle β of described datum level are 1 ~ 20 °, and the size of each angle β is directly proportional to the distance of sawtooth point to exiting surface.
2. prism as claimed in claim 1, it is characterized in that, the tooth depth of each sawtooth is 0.3 ~ 1mm.
3. prism as claimed in claim 1, it is characterized in that, ten sawtooth are located at described incidence surface, and the tooth depth of each sawtooth is equal, wherein the inclined-plane of the first sawtooth and the angle of datum level are 1.5 ~ 2 °, the inclined-plane of the second sawtooth and the angle of datum level are 3 ~ 4 °, the inclined-plane of the 3rd sawtooth and the angle of datum level are 6 ~ 8 °, the inclined-plane of the 4th sawtooth and the angle of datum level are 9 ~ 10 °, the inclined-plane of the 5th sawtooth and the angle of datum level are 11 ~ 13 °, the inclined-plane of the 6th sawtooth and the angle of datum level are 13 ~ 15 °, the inclined-plane of the 7th sawtooth and the angle of datum level are 15.5 ~ 16.2 °, the inclined-plane of the 8th sawtooth and the angle of datum level are 16.2 ~ 17 °, the inclined-plane of the 9th sawtooth and the angle of datum level are 17 ~ 18.5 °, the inclined-plane of the tenth sawtooth and the angle of datum level are 18.5 ~ 19.5 °, the inclined-plane of described first sawtooth and the angle δ of exiting surface are 30 ~ 40 °.
4. prism as claimed in claim 3, is characterized in that, described prism is the HK51 glass prism adopting tempering, and the tooth depth of each sawtooth is 0.5mm, wherein the inclined-plane of the first sawtooth and the angle of datum level are 1.8 °, the inclined-plane of the second sawtooth and the angle of datum level are 3.5 °, the inclined-plane of the 3rd sawtooth and the angle of datum level are 7 °, the inclined-plane of the 4th sawtooth and the angle of datum level are 9.5 °, the inclined-plane of the 5th sawtooth and the angle of datum level are 12 °, the inclined-plane of the 6th sawtooth and the angle of datum level are 14 °, the inclined-plane of the 7th sawtooth and the angle of datum level are 16 °, the inclined-plane of the 8th sawtooth and the angle of datum level are 16.5 °, the inclined-plane of the 9th sawtooth and the angle of datum level are 18 °, the inclined-plane of the tenth sawtooth and the angle of datum level are 19 °, the inclined-plane of described first sawtooth and the angle δ of exiting surface are 36 °.
5. the prism as described in any one of claim 1-4, is characterized in that, the refractive power angle of described prism is 50 ~ 60 °.
6. a runway center line light, comprise light source and send the prism of the shooting angle of light in order to adjust described light source, it is characterized in that, described prism is the prism described in any one of claim 1-5.
7. runway center line light as claimed in claim 6, it is characterized in that, described light source is the halogen tungsten lamp carrying investigation on several focus reflectors, and the axis of described prism is parallel with the optical axis of described halogen tungsten lamp, 1 ~ 1.5mm below its optical axis being positioned at described halogen tungsten lamp; The incidence surface of described prism is apart from the light-emitting window 8 ~ 12mm of described halogen tungsten lamp.
8. runway center line light as claimed in claim 7, it is characterized in that, after described runway center line light is installed on runway, the optical axis of described halogen tungsten lamp and the angle ε on ground are 25 ~ 30 °, the overhead height≤6.35mm of end face of described runway center line light.
9. a voyage aid of the airport system, is characterized in that, described voyage aid of the airport system adopts the runway center line light as described in any one of claim 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284069.8A CN103017082B (en) | 2011-09-22 | 2011-09-22 | Prism, runway centerline light and airport navigation aid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284069.8A CN103017082B (en) | 2011-09-22 | 2011-09-22 | Prism, runway centerline light and airport navigation aid system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017082A CN103017082A (en) | 2013-04-03 |
| CN103017082B true CN103017082B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110284069.8A Expired - Fee Related CN103017082B (en) | 2011-09-22 | 2011-09-22 | Prism, runway centerline light and airport navigation aid system |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262358Y (en) * | 2008-09-12 | 2009-06-24 | 上海行德照明工程有限公司 | Integrated glass prism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11224509A (en) * | 1998-02-10 | 1999-08-17 | Toshiba Lighting & Technology Corp | Flush type marker lamp |
| US6902291B2 (en) * | 2001-05-30 | 2005-06-07 | Farlight Llc | In-pavement directional LED luminaire |
| JP2004300798A (en) * | 2003-03-31 | 2004-10-28 | Toshiba Lighting & Technology Corp | Flushmount type marker lamp and marker lamp device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262358Y (en) * | 2008-09-12 | 2009-06-24 | 上海行德照明工程有限公司 | Integrated glass prism |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-300798A 2004.10.28 * |
| JP特开平11-224509A 1999.08.17 * |
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