公开(公告)号：US09622311B1

公开(公告)日：2017-04-11

申请号：US15093601

申请日：2016-04-07

Applicant: ALSTOM TRANSPORT TECHNOLOGIES

Inventor： Jeffrey Fries ,  Brian Tiemann ,  Charles Crawford

IPC: H05B33/08 ,  F21V23/00 ,  F21V14/08 ,  F21S8/00 ,  B61L9/04 ,  F21Y113/13 ,  F21Y115/10 ,  F21W131/10

CPC classification number: H05B33/0806 ,  B61L5/1827 ,  B61L5/1881 ,  B61L2207/02

Abstract: The invention relates to a sub-assembly for a searchlight signal comprising three distinct light emitting diodes and an interface module for connecting the three diodes to a controller.The interface module comprises:a light input adapted to receive a signal for feeding a light emitting diode,a first relay having an active position and an inactive position, anda second relay having an active position and an inactive position,such that:when the second relay and the first relay are in the inactive position, the light input is fed to a first LED,when the first relay is in the active position, the light input is fed to a second LED, andwhen the second relay is in the active position, the light input is fed to a third LED.