SURFACE LIGHT SOURCE DEVICE, LIGHT GUIDE ELEMENT USED FOR SURFACE LIGHT SOURCE DEVICE, AND METHOD FOR PRODUCING LIGHT GUIDE ELEMENT
    2.
    发明申请
    SURFACE LIGHT SOURCE DEVICE, LIGHT GUIDE ELEMENT USED FOR SURFACE LIGHT SOURCE DEVICE, AND METHOD FOR PRODUCING LIGHT GUIDE ELEMENT 有权
    表面光源装置,用于表面光源装置的光导元件以及用于制造光导元件的方法

    公开(公告)号:US20130003412A1

    公开(公告)日:2013-01-03

    申请号:US13635566

    申请日:2011-03-15

    IPC分类号: F21V8/00 B29C35/08

    摘要: Disclosed is a plate-like light guide element (24) provided with a light incident surface, a light exit surface (242), and an underside surface (243) disposed on the opposite side of the light exit surface (242). A foamed surface layer (244) is formed on at least a part of at least either the light exit surface (242) or the underside surface (243). The foamed surface layer (244) contains air bubbles and has a recessed sectional surface including the normal direction of the light exit surface (242) or the underside surface (243). The light guide element (24) is produced by performing infrared laser etching for at least a part of at least one of the main surfaces of a plate-like light guide element material composed of an acryl resin plate produced by a continuous plate production method, to form the foamed surface layer (244).

    摘要翻译: 公开了设置有光入射面的板状导光元件(24),光出射面(242)和设置在光出射面(242)的相对侧的下表面(243)。 发光表面层(244)形成在光出射表面(242)或下表面(243)中的至少一个的至少一部分上。 发泡表面层(244)包含气泡,并且具有包括光出射表面(242)或下表面(243)的法线方向的凹入的截面。 导光元件(24)通过对由连续板制造方法制造的丙烯酸树脂板构成的板状导光元件材料的至少一个主表面的至少一部分进行红外激光蚀刻来制造, 以形成发泡表面层(244)。