| 摘要 |
PURPOSE:To provide sufficient light quantity, and facilitate the maintenance of lamp burn-out, optical fiber rapture, and the like in an airplane warning light device which transmits the light of a light source through optical fibers to a bulb at a high position so as to emit the light. CONSTITUTION:Plural optical fibers are provided so that the respective end portions of the optical fibers are dispersively arranged in a bulb 2. In order to detect lamp burn-out, a light receiving device 6 is installed in a light source device. In order to detect the optical fiber rapture, an optical fiber 3b is installed so as to send back the light in the bulb 2 to a light source device side and a light receiving element 9 is installed so as to receive the light. |
