Comparison of Dual Focus Collector Schemes for Fiber Systems 970254
The development of efficient, multi-output High Intensity Discharge (HID) light sources is important for driving fiber systems in automotive applications, in particular for headlamps. Such systems must collect a large fraction of the light from the HID source while efficiently coupling the light into large core light pipes.
An earlier paper [1] showed how multifocus optical systems can efficiently split the light evenly between separate output ports. Multifocus systems were shown to be more efficient than a mixing rod approach, especially for the case of two ports. In the case of dual output systems, many more cases need to be considered. To facilitate the investigation, a state-of-the-art optical analysis/design program was employed to demonstrate the tradeoffs between six different dual focus geometries. A novel dual ellipse approach is presented.
Citation: Cassarly, W., Davenport, T., Hansler, R., and Allen, G., "Comparison of Dual Focus Collector Schemes for Fiber Systems," SAE Technical Paper 970254, 1997, https://doi.org/10.4271/970254. Download Citation
Author(s):
W. J. Cassarly, T. L. Davenport, R. L. Hansler, G. R. Allen
Affiliated:
Lighting Innovations Institute
Pages: 12
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1997 Transactions - Journal of Passenger Cars-V106-6
Related Topics:
Headlamps
Fibers
Optics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
