US 5,632,551 A · LED vehicle lamp assembly

Abstract

A lamp, such as for truck trailers and/or tractors, is provided with LEDs mounted to a circuit board placed in a housing. The housing is thereafter partially filled with a liquid resin material and a lip portion of a lens member is pressed into the resin into contact with the circuit board. The resin material is cured with thermally conductive particles suspended therein for conducting excess heat to the outer aluminum housing and the outer environment. A hermetic seal is formed by the resin material between the lens member and the LED bearing circuit board. The lens member has a series of parallel, elongated lens ribs providing constant optics while allowing additional LEDs to be positioned in a row behind a lens rib. The lens member is completely recessed within the housing for enhanced protection from mechanical damage thereto.

Claims22

Dependent claims

A lamp assembly, comprising:

a housing defining an inner surface;
a light transmissive window on said housing;
at least one light emitting unit mounted to a carrier positioned within said housing, said carrier and said light transmissive window defining a space therebetween, said light emitting unit emitting light toward said light transmissive window;
and
a formable medium located within said housing, said carrier and said light transmissive window at least partially embedded within said medium, said medium bonding to each of said carrier, said light transmissive window and said inner surface of said housing such that said space is hermetic.

2 more elements

Dependencies are inferred from the claim text.

LED vehicle lamp assembly

Life of this patent

LED vehicle lamp assembly

Life of this patent

Abstract

Claims22