Patent ID: 9243759
Filing Date: 2016-01-26
CPC Classification: B60Q,F21K

Claim Text:
1. An LED-based lighting unit for retrofitting a fluorescent light fixture in a transit vehicle, the LED-based lighting unit comprising: an elongate fixture frame securably attachable within a fluorescent lighting fixture cavity of the transit vehicle, said cavity having outwardly angled opposing elongate walls, said cavity having left and right electrical sockets for supporting and providing power to a fluorescent tube light, wherein the elongate fixture frame substantially conforms to the shape of the cavity so that the elongate fixture frame fits snugly therein, the elongate fixture frame having a transverse member with outwardly angled opposing sidewalls extending from the transverse member and each forming an obtuse internal angle therewith so that the angle of each sidewall generally matches the pitch of the fluorescent lighting fixture cavity's outwardly angled opposing elongate walls; left and right non-conductive pins extending from the elongate fixture frame, said left and right non-conductive pins securably attaching the elongate fixture frame to the left and right sockets within the fluorescent lighting fixture cavity without making electrical connection with the electrical sockets; a heat conductive mounting surface on the elongate fixture frame; a plurality of light-emitting diodes (LEDs) disposed along a length of said heat conductive mounting surface, for illuminating an interior area of the transit vehicle; and a diffusive lens cover removably attachable to an output opening of the fluorescent lighting fixture cavity.