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Stanley introduced during the SAE congress '87 a LED HMSL, for the first time in the world, which fully conformed to FMVSS 108, and which was ready to be installed on actual vehicles. In the following year, utilizing the accumulated technology through LED HMSL and the superiority of LED, we presented a paper on the development of LED rear combination lamp which has multi-function features, such as sequential turn signal, character and/or pattern displays in addition to conventional stop & tail function and which is thin in its shape and long life (maintenance free). This year, we have successfully developed a LED rear combination lamp with a built-in optical proximity sensor function fully integrating all the accumulated design technology and application technology of optical semiconductors for automotive LED lighting through the above developments.