A birefringent diffuser includes a first optical material and a first birefringent material. The first optical material and the first birefringent material are combined to form a planar layer. The planar layer has an internal pattern of the materials presenting a substantially uniform index of refraction for incident light which is substantially normal to the planar layer and exhibiting a varying index of refraction for at least a portion of light which is trapped in guided modes.
申请公布号
EP2513682(A4)
申请公布日期
2013.04.24
申请号
EP20090852405
申请日期
2009.12.18
申请人
HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.
发明人
KITSON, STEPHEN;GEISOW, ADRIAN;NEWTON, CHRISTOPHER