Compensation free illumination of instrument cluster display

Illumination – Illuminated scale or dial – Edge illuminated modifier or light rod/pipe

Reexamination Certificate

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C362S026000, C362S029000, C362S471000, C362S489000, C362S488000, C362S511000, C362S518000, C362S309000, C362S297000, C362S559000, C362S327000, C362S347000, C313S512000

Reexamination Certificate

active

07575331

ABSTRACT:
An example light guide assembly for illuminating a display of an instrument cluster includes a light receiving portion, a light propagating portion and a conical surface positioned between the light receiving portion and the light propagating portion. An exterior surface of the light propagating portion includes a plurality of lobes that uniformly illuminate the display as light propagates from the light receiving portion to the conical surface and through the light propagating portion.

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