<p>There is provided a colour sequential illumination device comprising in series: first and second light sources; a condenser lens; and a grating device. The grating device comprises at least one Bragg grating. The condenser lens directs light from the first and second sources into the grating device at first and second incidence angles respectively. The grating device diffracts light from the first and second sources into a common direction. Desirably, the Bragg gratings are Electrically Switchable Bragg Gratings. In one embodiment of the invention the light sources are Light Emitting Diodes. Alternatively lasers may be used.</p>
申请公布号
WO2007058746(A2)
申请公布日期
2007.05.24
申请号
WO2006US41689
申请日期
2006.10.27
申请人
SBG LABS INC.;POPOVICH, MILAN, MOMCILO;WALDERN, JONATHAN, DAVID