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Automotive Distributed Lighting: Regionally
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 06, 2000 by SAE International in United States
Annotation ability available
Event: SAE 2000 World Congress
Very small PC lamps are used with localized waveguides to construct regional distributed lighting systems (DLS). This approach reduces the size, cost, and redesign of implementing DLS illumination. Wattage usage is decreased, and installation complexity is reduced. The logical conclusion of this approach is to have very large sources illuminating large regions. An example of this is a DLS tail light. HIDs and waveguides are used with standard parabolic reflector optics to generate legal tail light functions. Enough light is generated by one HID to power a red stop, an amber turn, and a white backup with light left over to power functions in the interior. One parabolic reflector and four formed waveguides collect the light. Waveguides distribute the light to output optics. Switching (i.e., modulation) is accomplished with scattering liquid crystal light valves (LCLV) and electro-mechanical switches (servos).
CitationHulse, G., Brown, J., Howard, L., and Shockley, B., "Automotive Distributed Lighting: Regionally," SAE Technical Paper 2000-01-0342, 2000, https://doi.org/10.4271/2000-01-0342.
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- George R. Hulse, Jason J. Eskridge, Mullican, Timothy ‘HID Driven Focus-less Optics System for Complete Automotive Distributed Lighting Systems’, SAE Technical Paper Series, 1998.
- The model used here is Optical Research Associates’ Light Tools version 2.1.0.
- Hulse, George R. Mullican, Timothy W. ‘Analysis of Waveguide Geometries at Bends and Branches for the Directing of Light’, SAE Technical Paper Series 981189,, February 23-26 1998.
- SAE Specification J586, table 2.
- SAE Specification J586, paragraph 22.214.171.124.
- Specification J588, table 3.
- SAE Specification J593, table 2.