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    • 7. 发明申请
    • ILLUMINATION APPARATUS
    • 照明设备
    • WO2010143112A1
    • 2010-12-16
    • PCT/IB2010/052502
    • 2010-06-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BAKKER, Levinus, PieterSHE, JunCORNELISSEN, Hugo, JohanWEI, Gongming
    • BAKKER, Levinus, PieterSHE, JunCORNELISSEN, Hugo, JohanWEI, Gongming
    • F21V7/00G02B6/00
    • G02B6/0016G02B6/0021
    • This invention relates to an illumination apparatus. The illumination apparatus comprises a light guide plate and a light source configured to emit light into the light guide plate through a first surface, and the light guide plate comprises a concentrator configured to direct incident light in the light guide plate so as to radiate in a direction substantially parallel to a preset plane. The preset plane is perpendicular to any one of the top surface and bottom surface of the light guide plate, and intersects the first surface and a second surface of the light guide plate or intersects the first surface and one of the side surfaces at an angle that is substantially larger than the critical angle of a total reflection. In this way, unwanted light loss in the light guide plate is reduced, and the distribution of the light intensity or luminance along the light guide plate is improved, i.e., a substantially uniform distribution of the light intensity can be achieved.
    • 本发明涉及一种照明装置。 照明装置包括导光板和被配置为通过第一表面将光发射到导光板中的光源,并且导光板包括集中器,其被配置为将入射光引导到导光板中以便辐射到 方向基本上平行于预设平面。 预设平面垂直于导光板的顶表面和底表面中的任何一个,并且与导光板的第一表面和第二表面相交,或者与第一表面和侧表面之一相交,角度与 远大于全反射的临界角。 以这种方式,导光板中的不需要的光损失减小,并且沿导光板的光强度或亮度分布得到改善,即可以实现大致均匀的光强度分布。