Light emitting diode retrofitting lamps for illuminated traffic signs
作者： Chen H. Wu
DOI:
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摘要: A light emitting diode (LED) retrofit lamp (2) with locking swivel mount (12) mounts into a threaded screw-in electrical socket of traffic signal. The LED includes housing (22), printed circuit board (14) and plurality diodes (16). (22) has lower end terminating in base (18) for insertion socket. is fixed to (26) having portion (29) extending through retainer (30) thus rotatably mounted the (22). (16) on such manner that they form symbol image, as an arrow, pedestrian walking, hand, letter or even words. rotatable relative rotation image formed by desired rotational orientation Therefore, once fully inserted signal, can be rotated so properly oriented.
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