| 摘要 |
<p>PURPOSE:To improve the visibility of a rotary alam lamp largely by disposing an LED light emitter comprising a specified number of light emitting diodes disposed in a belt line along a peripheral edge part of a base to direct horizontally, and flashing the light emitting diodes. CONSTITUTION:An LED light emitter 30 is disposed at a facing part to a transparent globe 29 in a peripheral edge part of a base 22 of a rotary alarm lamp 20, where this LED light emitter is composed of a belt-shaped base plate 31, and a specified number of light emitting diodes 32 disposed in a belt line on the base plate 31. This LED light emitter 30 is disposed at a front edge part of each base 22, setting each light emitting diode 32 with its light emission part directed horizontally, and the light emitting diodes 32 in each LED light emitter 30 are flashed by an LED flashing circuit 33 assembled in each base. An extremely sharply flashing flash light can thus be radiated toward around the rotary alarm lamp 20, and the flash light having a certain degree of enlargement around it, thereby the visibility of the rotary alarm lamp 20 can be improved largely.</p> |
