| 摘要 |
PURPOSE:To effectively avoid the danger of collisions by automatically shifting to a blink operating mode when a vehicle travels at low speed or stops, thereby causing blinking light to be radiated toward the rear of the vehicle. CONSTITUTION:A vehicle speed pulse from a speedometer 32 is provided at an electronic siren amplifier 60 for controlling operation of a light-diffusing warning lamp 10. When the vehicle speed exceeds e.g. 5km/h, the electronic siren amplifier 60 transmits a control signal corresponding to the normal operating mode from a line 64 to the light-diffusing warning lamp 10, while when the vehicle speed is 5 km/h or less, it transmits a control signal corresponding to a blink operating mode to the line 64. In the normal operating mode, all of rotary lamps 15R, 16R; 15L, 16L are continuously turned on and held rotated. In the blink operating mode, the pair of inside rotary lamps 15R, 15L is stopped in the state of radiating warning light in the longitudinal direction of the vehicle and is kept blinking. |
