COLLIMATING LIGHT INJECTORS FOR EDGE-LIT BACKLIGHTS
摘要
<p>Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (50) and back (52) reflector, are described. In some embodiments, the device includes a light source (59) disposed proximate the back reflector, and first (42) and second (44) reflecting structures. The first reflecting structure includes an inner reflective surface (41b) at least a portion of which is inclined to form a wedge with the back reflector. The wedge partially collimates and directs light from the light source generally away from the recycling cavity. The second reflecting structure receives light exiting the wedge and redirects such light into an injection beam directed into the recycling cavity.</p>
申请公布号
WO2008144650(A1)
申请公布日期
2008.11.27
申请号
WO2008US64125
申请日期
2008.05.19
申请人
3M INNOVATIVE PROPERTIES COMPANY;HOFFEND, THOMAS R., JR.;FREIER, DAVID, G.;BIERNATH, ROLF, W.;PIEKARCZYK, ANTHONY, J.;MEIS, MICHAEL, A.
发明人
HOFFEND, THOMAS R., JR.;FREIER, DAVID, G.;BIERNATH, ROLF, W.;PIEKARCZYK, ANTHONY, J.;MEIS, MICHAEL, A.