CN204926524U - Laser formula three -colour traffic signal lamp - Google Patents
Laser formula three -colour traffic signal lamp Download PDFInfo
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- CN204926524U CN204926524U CN201520312541.8U CN201520312541U CN204926524U CN 204926524 U CN204926524 U CN 204926524U CN 201520312541 U CN201520312541 U CN 201520312541U CN 204926524 U CN204926524 U CN 204926524U
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- laser
- light
- signal lamp
- traffic signal
- light source
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Abstract
The utility model discloses a laser formula three -colour traffic signal lamp, including light source and collimating system, still restraint system and cooling system including expanding, it is located between light source and the collimating system to expand the system of restrainting, cooling system is used for preventing to expand the system of restrainting and is heated, light that the light source sent expands and shines collimating system and form even light beam through collimating system after restrainting through expanding the system of restrainting. The utility model discloses make full use of the monochromaticjty of laser good, luminance is high, directive property reaches the small of optics diffraction device well, light weight, advantages such as integrated nature height, the required illuminating effect of traffic signal lamp has been realized under the prerequisite of designing requirement more than satisfying, and have the characteristics that system's compact is strong, traditional traffic signal lamp design theory has been broken through, compare with traditional traffic signal lamp that to have an illuminating effect good, compact structure, advantages such as efficiency of light energy utilization height, and has a good application prospect.
Description
Technical field
The utility model belongs to technical field of optical, is specially a kind of laser type three look traffic lights.
Background technology
Traffic lights are kinds in traffic safety product, are to strengthen control of traffic and road, reduce the generation of traffic hazard, improve road occupation efficiency, improve a kind of important tool of traffic.Be applicable to the intersection such as cross, T-shaped, controlled by road traffic signal controller, guiding vehicle and pedestrains safety are passed through in an orderly manner.
Traffic lights common at present are mainly divided into two parts: light source and face shield, arranged by many monochromatic LEDs (light emitting diode), then utilize face shield simply to encapsulate according to certain shape.The main weak point of the program is: such as encapsulating structure cannot control emergent light, is difficult to the requirement meeting irradiating angle and irradiate homogeneity; During close-ups signal lamp, its light-emitting area is uneven, there is obvious granular sensation; The efficiency of light energy utilization is lower, needs to adopt multiple LED to improve brightness.
Utility model content
In order to overcome the deficiency that prior art exists, the utility model provides a kind of laser type three look traffic lights.
For solving the problems of the technologies described above, realize above-mentioned purpose, the present invention is achieved through the following technical solutions:
A kind of laser type three look traffic lights, comprise light source and colimated light system, also comprise beam-expanding system and cooling system, described beam-expanding system is between light source and colimated light system, described cooling system is used for preventing beam-expanding system to be heated, and the light that described light source sends is irradiated to colimated light system and forms uniform beam through colimated light system after beam-expanding system expands.
The beneficial effects of the utility model are as follows: the monochromaticity taking full advantage of laser is good, brightness is high, directive property good and the volume of optical diffraction device is little, lightweight, integration advantages of higher, the illuminating effect required for traffic lights is achieved under the prerequisite meeting above designing requirement, and have the advantages that system compact type is strong, breach conventional traffic signal lamp design concept, there is good illumination effect, compact conformation, efficiency of light energy utilization advantages of higher compared with conventional traffic signal lamp, have a good application prospect.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structured flowchart of traffic lights;
Fig. 2 is the structural representation of traffic lights;
Fig. 3 is the graph of a relation of human eye photopic vision relative spectral efficiency and wavelength.
Embodiment
Below in conjunction with accompanying drawing and embodiment of the present utility model, the utility model laser type three look traffic lights are made the following instructions.
Embodiment: a kind of laser type three look traffic lights, comprise light source 1 and colimated light system 3, also comprise beam-expanding system 2 and cooling system 4, described beam-expanding system 2 is between light source 1 and colimated light system 3, described cooling system 4 is heated for preventing beam-expanding system 2, and the light that described light source 1 sends is irradiated to colimated light system 3 and forms uniform beam through colimated light system 3 after beam-expanding system 2 expands.
Light source 1 comprises red laser, yellow laser and green laser.Wherein, the luminous power of red laser is 40.9mw-102.2mw, and the luminous power of yellow laser is 11.4mw-28.5mw, and the luminous power of green laser is 12.6mw-31.4mw.
Beam-expanding system 2 adopts and is expanded the laser beam with certain angle of divergence by the optical diffraction device that laser direct-writing instrument is etched into multiple stage stage structure, coordinates the parameter size of shoot laser to be optimized design simultaneously.Colimated light system 3 adopts Fresnel Lenses and its shiny surface is used as optical mask, and the light distribution making it meet in regulation irradiation area (horizontal direction angle is between left and right 30, and pitch orientation angle is between 0 ° to downward 10 °) is even.The optical diffraction device that beam-expanding system 2 adopts expands the shoot laser with certain dispersion angle, makes laser beam be d in diffraction distance
1time covering diameter
circular Fresnel lens.Optical diffraction device is a kind of optical element adopting laser direct-writing technique to etch the ledge structure through design on a transparent substrate, can realize carrying out wide-angle to incident laser and expand.The design concept of optical diffraction device can be searched to algorithm in relevant documents and materials, common are the G-S iterative algorithm based on positive inversefouriertransform and corresponding innovatory algorithm.Making the optical diffraction device meeting this example can according to concrete laser emitting optical field distribution, through corresponding design and processing and fabricating, make laser beam carry out wide-angle through optical diffraction device to expand, thus make laser beam cover whole fresnel lenses zone.
The Fresnel Lenses that colimated light system 3 adopts adopts the outer protection of PC material realization to traffic lights that high transmission rate, physical strength are high, internal stress is little in Material selec-tion.
Cooling system 4 adopts semiconductor heat-dissipating sheet, with this increasing heat radiation area, improve radiating efficiency, thus ensure the usability of element, especially prevent optical diffraction device from because being heated, bench height is changed and affect its diffraction efficiency, thus improve the serviceable life of traffic lights.
The requirement of road traffic signal lamp standard GB/T 14887-2011 should be met on laser parameter is selected, luminous intensity distribution for pattern-free signal lamp luminescence unit should meet in regulation irradiation area (10m), luminous intensity should be even, namely the luminous intensity in this region in either direction, lower than 400cd, and 1000cd should be not more than.
It can thus be appreciated that at the irradiation area of 10m, the luminous intensity on datum line should meet:
400cd<I<1000cd(1)
According to light-metering formula:
Illumination [lx]=light intensity [cd] * sterad/square metre (2)
Then corresponding illumination should between 0.76lx ~ 1.91lx
According to luminous flux formula:
Luminous flux [lm]=illumination * face to be illuminated amasss (3)
If consider, most of Light distribation within the scope of 10 degree, then need obtain corresponding luminous flux by formula 3 and should be: 7.4lm ~ 18.5lm.
According to the relation of human eye photopic vision relative spectral efficiency and wavelength in Fig. 1, the luminescence efficiency under three look laser can be obtained:
Table 1 red yellowish green trichromatism laser instrument luminous power
Meet national standard for making the type traffic lights at irradiation area and must meet luminous power requirement to three look laser in table 1.
Claims (6)
1. laser type three look traffic lights, comprise light source (1) and colimated light system (3), it is characterized in that: also comprise beam-expanding system (2) and cooling system (4), described beam-expanding system (2) is positioned between light source (1) and colimated light system (3), described cooling system (4) is heated for preventing beam-expanding system (2), and the light that described light source (1) sends is irradiated to colimated light system (3) and forms uniform beam through colimated light system (3) after beam-expanding system (2) expands.
2. laser type three look traffic lights according to claim 1, is characterized in that described light source (1) comprises red laser, yellow laser and green laser.
3. laser type three look traffic lights according to claim 1 and 2, is characterized in that described beam-expanding system (2) is optical diffraction device.
4. laser type three look traffic lights according to claim 3, is characterized in that described optical diffraction device is ledge structure.
5. laser type three look traffic lights according to claim 1 and 2, is characterized in that described colimated light system (3) is Fresnel Lenses.
6. laser type three look traffic lights according to claim 1 and 2, is characterized in that described cooling system (4) adopts semiconductor heat-dissipating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312541.8U CN204926524U (en) | 2015-05-15 | 2015-05-15 | Laser formula three -colour traffic signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312541.8U CN204926524U (en) | 2015-05-15 | 2015-05-15 | Laser formula three -colour traffic signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204926524U true CN204926524U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520312541.8U Expired - Fee Related CN204926524U (en) | 2015-05-15 | 2015-05-15 | Laser formula three -colour traffic signal lamp |
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| CN (1) | CN204926524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160905A (en) * | 2015-05-15 | 2015-12-16 | 江西科技师范大学 | Laser-type traffic signal lamp |
| CN110056808A (en) * | 2018-01-18 | 2019-07-26 | 深圳市绎立锐光科技开发有限公司 | Laser light emitting device |
-
2015
- 2015-05-15 CN CN201520312541.8U patent/CN204926524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160905A (en) * | 2015-05-15 | 2015-12-16 | 江西科技师范大学 | Laser-type traffic signal lamp |
| CN110056808A (en) * | 2018-01-18 | 2019-07-26 | 深圳市绎立锐光科技开发有限公司 | Laser light emitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170515 |