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    • 35. 发明申请
    • LED LIGHT EXTRACTION BAR AND INJECTION OPTIC FOR THIN LIGHTGUIDE
    • LED灯提取杆和注射光学薄光
    • US20080260328A1
    • 2008-10-23
    • US11738172
    • 2007-04-20
    • Kenneth A. Epstein
    • Kenneth A. Epstein
    • G02B6/26
    • G02B6/0028G02B6/0018G02B6/0031G02B6/0068G02B6/0073
    • An optical system for back-illuminating a display has a lightguide having a confinement direction and a first plurality of light sources disposed proximate a first edge of the lightguide. Light from at least one of the light sources defines an emission axis which is approximately parallel to the confinement direction. A solid light injector is disposed to couple light from the light sources into the lightguide. A surface of the light injector may be shaped as a confinement curve for confining light from the first plurality of light sources in the confinement direction by total internal reflection. In some embodiments a portion of the illumination light from the one or more light sources enters the first light injector along a direction having a component directed away from the lightguide and is totally internally reflected within the injector.
    • 用于背光照明显示器的光学系统具有限制方向的光导和靠近光导的第一边缘设置的第一多个光源。 来自至少一个光源的光限定大致平行于约束方向的发射轴。 设置固体光注射器以将来自光源的光耦合到光导中。 光注射器的表面可以被形成为限制曲线,用于通过全内反射限制来自约束方向上的第一多个光源的光。 在一些实施例中,来自一个或多个光源的照明光的一部分沿着具有远离光导的分量的方向进入第一光注入器,并且在喷射器内完全内反射。
    • 36. 发明申请
    • BACK-LIT DISPLAYS WITH HIGH ILLUMINATION UNIFORMITY
    • 具有高照明均匀性的后视显示屏
    • US20080111945A1
    • 2008-05-15
    • US11560250
    • 2006-11-15
    • Kenneth A. EpsteinKenneth J. HanleyJames A. StevensonRobert M. Emmons
    • Kenneth A. EpsteinKenneth J. HanleyJames A. StevensonRobert M. Emmons
    • G02F1/1335
    • G02B5/045G02F1/133606G02F2001/133507
    • A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the light source unit and the display panel and a light diverting layer is disposed between the one or more light sources and the diffuser. The light diverting layer has light diverting members on a first side of the light diverting layer facing the diffuser. Surfaces of the light diverting members are disposed at more than one angle relative to a normal to the light diverting layer and also include one or more sharp changes of surface slope. The light diverting members spread the illumination light so as to be more uniform. Different light diverting members can have different apex angles. Also, different sides of a light diverting member can have best fit centers of curvature that are non-coincident.
    • 直接照明的显示单元具有显示面板和布置在显示面板后面的一个或多个光源。 扩散器设置在光源单元和显示面板之间,并且光转向层设置在一个或多个光源和扩散器之间。 光转移层在光转向层的面向扩散器的第一侧上具有光转向构件。 光转向构件的表面相对于光转向层的法线设置成多于一个角度,并且还包括一个或多个表面斜率的急剧变化。 光转向构件使照明光扩展成更均匀。 不同的光转向构件可以具有不同的顶角。 而且,光转向构件的不同侧面可以具有最佳匹配的不一致曲率中心。