| 摘要 |
<p>PURPOSE:To easily perform the positioning of lens shape on a surface and back faces, to easily control the thickness of a sheet, to sharply mold the lens shape, and also to enable mass production even in a short time. CONSTITUTION:A projecting light outgoing part 12 has two parts: a first layer 12A integrally molded with a back convex lens 11 and a second layer 12B formed on the first layer 12A and at least including a top, so that each part can be manufactured by different methods; and the second layer 12B can be molded to be a sharp lens shape, and also the second layer is formed on the first layer, so that the positioning of both layers can be easily performed.</p> |
