| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a low-cost stop lamp device consisting of a light transmitting plate. SOLUTION: A light transmitting plate 1 comprising transparent material is provided. Incidental parts 15 are provided on both side surfaces of the light transmitting plate 1. A reflection part 19 formed by a white-color dot printing means is provided on the back surface of the light transmitting plate 1. For the density of a dot printed part 191, it is set high at a center part, and low around the incidental parts 15 at both end parts. A light emitting part 11 is provided to face the reflection part 19, and a red-color filter 6 is provided in addition. A light source 2 for sending a light flux to the incidental parts 15 formed on both side surfaces of the light transmitting plate 1 is provided. A heat insulating filter 3 for shielding a heat ray from the light source 2 is provided between the incidental part and the light source 2. A reflector 4 for reflecting a visible light beam is provided on the back surface of the light source 2. A case 5 is provided for containing the transmitting plate 1, the light source 2, etc. White paint is applied to inner parts of the case 5. A window 55 is provided at a corresponding place to the light emitting part 11.</p> |
