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    • 5. 发明公开
    • 도광판 및 면광원 장치
    • 光导板和表面光源装置
    • KR1020140063364A
    • 2014-05-27
    • KR1020130014240
    • 2013-02-08
    • 오므론 가부시키가이샤
    • 쿠라타고우오
    • G02B6/122G02B6/10G02F1/13357
    • G02B6/0018G02B6/0016G02B6/002G02B6/003G02B6/0038
    • The present invention reduce light leaked from a light area end of a task directivity conversion pattern and extends an effective light area. A solution unit light guide plate (33) comprises a light introduction unit (35) for holding light emitted from a cross section and a light guide plate body (34) having thinner thickness than the light introduction unit (35) and for emitting light from a light area (46) to the outside. The light introduction unit (35) has an inclined plane (37) inclined from a part, which is thicker than the light guide plate body (34), to the end of the light guide plate body (34) in at least one surfaces between the surface of the light emission side and the opposite surface of the light emission side. The light guide plate body (34) has a directivity conversion pattern (40) for converting the directivity direction of the light, which passes from the light introduction unit (35) to the light area (46) in an area between the light introduction unit (35) and the light area (46) and in at least one surfaces between the surface of the light emission side and the opposite surface of the light emission side. At least one bone lines of the directivity conversion pattern (40) are located in the inner side of the light guide plate body (34) than the surface of the light area (46).
    • 本发明减少了从任务方向性转换图案的光区域端部泄漏的光并且延伸有效的光区域。 解决单元导光板(33)包括用于保持从横截面发射的光的光引入单元(35)和具有比光引入单元(35)更薄的厚度的导光板本体(34),并且用于从 向外部的光区域(46)。 光引入单元(35)具有从导光板主体(34)的厚度的一部分向导光板主体(34)的端部倾斜的倾斜面(37),该倾斜面 光发射侧的表面和发光侧的相对表面。 导光板体(34)具有指向性变换图案(40),用于将光导向单元(35)的光导向方向转换到光入射单元 (35)和光区(46)之间以及在发光侧的表面和发光侧的相对表面之间的至少一个表面。 指向性转换图案(40)的至少一条骨线位于导光板主体(34)的内侧,比光区域(46)的表面。