Optical guide has side sections, below which LED's are mounted and whose underside forms scattering lens, central section of guide having concave underside with stepped contour and light-reflecting coating

摘要

Optical guide for use in electrical switches, push-buttons or dimmers has side sections (5, 6), below which white LED's (12, 13) are mounted and whose underside forms a scattering lens. The central section has a planar upper surface (3) and a concave underside with a stepped contour and a light-reflecting coating (11).