Lamp assembly

Abstract

A lamp assembly including one or more light emitting diode (LED) arrays and a controller circuit to output a current to the one or more LED arrays. Each LED array includes at least one LED and defines a spatial radiation pattern having a first central axis. The lamp assembly also includes a lens array to redirect light received from the one or more LED arrays, a base and a light-transmissive cover. For each one of the one or more LED arrays, the lens array includes a total internal reflection (TIR) lens defining a second central axis aligned with the first central axis of the corresponding LED array. The TIR lens is configured to distribute light received from the LED array from an output face of the TIR lens such that the distributed light defines optical paths that are convergent, divergent or collimated with respect to the second central axis. The base includes a first surface to receive the one or more LED arrays, the controller circuit and the lens array. The base also includes a second surface structured to be removably received by a lamp holder. The light-transmissive cover is attached to the base and disposed over the first surface thereof such that the one or more LED arrays, the controller circuit and the lens array are contained between the cover and the base.

Description

Background technique [0001] Virtually all types of commercial and private aircraft include exterior lights, such as taxi and landing lights, to ensure proper visibility of the aircraft in a wide range of natural lighting conditions. Requirements determining the number and configuration of such lights are, among other things, usually embodied in regulations relating to airworthiness standards, such as Title 14, Part 23 of the Code of Federal Regulations. Exterior aircraft lights typically utilize incandescent filament technology. Incandescent filament luminaires are particularly prone to failure in aircraft environments due to large inrush currents and exposure to high levels of vibration, and the operational life of incandescent filament luminaires on aircraft compared Lifespan may be relatively short. This relatively short operating life may at least involve considerable maintenance costs and, in the event of a lamp failure during aircraft operation, may jeopardize the safe...

AI Technical Summary

Problems solved by technology

Incandescent filament luminaires are particularly prone to failure in aircraft environments due to large inrush currents and exposure to high levels of vibration, and the operational life of incandescent filament luminaires on aircraft compared lifespan may be relatively short

This relatively short operating life may at least involve considerable maintenance costs and, in the event of lamp failure during aircraft operation, may jeopardize the safety of the aircraft and passengers

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