| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure of a lighting device capable of easily and reliably positioning and fixing optical materials such as a reflector, a diffusion plate, a light guide plate, and a protective sheet. <P>SOLUTION: In the light-emitting device wherein irradiation light of an illumination light source is emitted from a light-emitting surface of the light guide plate 2 by irradiating the irradiation light of the illumination light source from a side face of the light guide plate 2, the lighting device has a multilayer structure wherein a plurality of optical materials 2, 3, 4 including the light guide plate 2 and having optical characteristics of reflection, diffusion, or transmission are laminated, and further, has storage/fixing means (fitting-in sections 1a, 1b, 1c, and 1d and peripheral walls 1F, 1F, and 1F) for storing, positioning, and fixing the other optical materials 2, 3, and 4 are arranged on a reflection/transmission plate 1 as one of the optical materials. <P>COPYRIGHT: (C)2013,JPO&INPIT |
