Limits...
Reflective optics design for an LED high beam headlamp of motorbikes.

Ge P, Wang X, Li Y, Wang H - ScientificWorldJournal (2015)

Bottom Line: We set the measuring screen as an elliptical zone and divide it into many small lattices and divide the spatial angle of the LED source into many parts and make relationships between them.According to the conservation law of energy and the Snell's law, the reflector is generated by freeform optics design method.Experiment results can fully comply with United Nations Economic Commission for Europe (ECE) vehicle regulations R113 revision 2 (Class C).

View Article: PubMed Central - PubMed

Affiliation: Engineering Research Center for Optoelectronics of Guangdong Province, School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China.

ABSTRACT
We propose a reflective optics design for an LED motorbike high beam lamp. We set the measuring screen as an elliptical zone and divide it into many small lattices and divide the spatial angle of the LED source into many parts and make relationships between them. According to the conservation law of energy and the Snell's law, the reflector is generated by freeform optics design method. Then the optical system is simulated by Monte Carlo method using ASAP software. Light pattern of simulation could meet the standard. The high beam headlamp is finally fabricated and assembled into a physical object. Experiment results can fully comply with United Nations Economic Commission for Europe (ECE) vehicle regulations R113 revision 2 (Class C).

No MeSH data available.


Related in: MedlinePlus

Assembled motorbike's headlamp.
© Copyright Policy - open-access
Related In: Results  -  Collection


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fig11: Assembled motorbike's headlamp.

Mentions: Finally the designed entity was processed and fabricated into a mold for experimental test, as shown in Figure 10. By electroplating and assembling, we assembled motorbike's optical system as shown in Figure 11. The total power of the high beam is 9 W, including three LED chip models. Then it was measured by LMT-400 system in an authoritative test organization, located in Guangzhou City. Test configuration is shown in Figure 12(a). The light distribution is shown in Figure 12(b). The measured results are shown in Table 1. All test points have passed the ECE regulation R113 revision 2 (Class C).


Reflective optics design for an LED high beam headlamp of motorbikes.

Ge P, Wang X, Li Y, Wang H - ScientificWorldJournal (2015)

Assembled motorbike's headlamp.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4414011&req=5

fig11: Assembled motorbike's headlamp.
Mentions: Finally the designed entity was processed and fabricated into a mold for experimental test, as shown in Figure 10. By electroplating and assembling, we assembled motorbike's optical system as shown in Figure 11. The total power of the high beam is 9 W, including three LED chip models. Then it was measured by LMT-400 system in an authoritative test organization, located in Guangzhou City. Test configuration is shown in Figure 12(a). The light distribution is shown in Figure 12(b). The measured results are shown in Table 1. All test points have passed the ECE regulation R113 revision 2 (Class C).

Bottom Line: We set the measuring screen as an elliptical zone and divide it into many small lattices and divide the spatial angle of the LED source into many parts and make relationships between them.According to the conservation law of energy and the Snell's law, the reflector is generated by freeform optics design method.Experiment results can fully comply with United Nations Economic Commission for Europe (ECE) vehicle regulations R113 revision 2 (Class C).

View Article: PubMed Central - PubMed

Affiliation: Engineering Research Center for Optoelectronics of Guangdong Province, School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China.

ABSTRACT
We propose a reflective optics design for an LED motorbike high beam lamp. We set the measuring screen as an elliptical zone and divide it into many small lattices and divide the spatial angle of the LED source into many parts and make relationships between them. According to the conservation law of energy and the Snell's law, the reflector is generated by freeform optics design method. Then the optical system is simulated by Monte Carlo method using ASAP software. Light pattern of simulation could meet the standard. The high beam headlamp is finally fabricated and assembled into a physical object. Experiment results can fully comply with United Nations Economic Commission for Europe (ECE) vehicle regulations R113 revision 2 (Class C).

No MeSH data available.


Related in: MedlinePlus