| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a marker lamp compact in the circumferential direction and make a current transformer compact, by arranging on the circumference of the outer peripheral portion of the current transformer laterally laid LEDs of a light emitting portion for emitting lights based on induction currents, and by disposing a diffusional polarization plate in the periphery of each LED. SOLUTION: An LED marker lamp comprises a cylindrical current transformer(CT) 2' fitted on a wire 4 to surround it and a light emitting portion 1' provided in the outer peripheral portion of the CT 2' to arrange laterally laid LEDs 3' on the circumference of the light emitting portion 1'. Further, polarization plates 5 is provided for diffusing an LED light on the bottom surface and one side periphery of each LED 3', the light-distribution half-value angle of the LED light increases to reduce the number of the LEDs 3' arranged on the circumference of the light emitting portion 1'. As a result, the circumferential compactness of the marker lamp can be improved, and the compactness of the CT 2' can be improved by reducing its consumption current.</p> |
