Disclosed herein is an optical device having a light source and a viscoelastic lightguide. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The viscoelastic lightguide may comprise a pressure sensitive adhesive. The optical device may be used in a variety of constructions wherein the device emits light being transported within the viscoelastic lightguide. Constructions include those used for signs, markings, illumination devices, display devices, keypad assemblies and tail light assemblies for vehicles.
申请公布号
EP2313800(A4)
申请公布日期
2014.03.19
申请号
EP20090794871
申请日期
2009.06.03
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
SHERMAN, AUDREY, A.;MEIS, MICHAEL, A.;SCHAFFER, KEVIN, R.;BOULOS, MARIE, A.;WIDAGDO, SOEMANTRI;TRAN, THU-VAN, T.;AELING, ELLEN, O.;YESHE, PATRICK, J.;WINKLER, WENDI, J.