| 摘要 |
<p>A light source receiver 31 is disposed adjacent to an incident end face 11 of a light guiding plate 1 using the light source holder 31 for receiving the LED unit 4 and a light source holder 3 formed in an L-shape in a cross section having a standing plate 34 at one end of the light source holder 31, the standing plate 34 is disposed outside of a reflective plate 2 laminated on the light guiding plate 1, and a bolt 81 via a long hole 35 of the standing plate 34 is screwed into an insert-nut 8 of the light guiding plate 1 via a clearance hole 21 of the reflective plate 2, thereby the standing plate 34 follows the heat expansion or contraction of the light guiding plate 1 except the reflective plate 2. A relative position between the incident end face 11 of the light guiding plate 1 and the light source receiver 31 of the light source holder 3 is always constant, and the LED unit 4 is prevented from being damaged.</p> |
