US Pat. No. 9,657,906

LIGHT-EMITTING DIODE RUNWAY END IDENTIFIER LIGHT SYSTEM

Astronics DME LLC, Ft. L...

1. A runway end identifier light (“REIL”) system, comprising:
a housing having an illumination window;
a substrate disposed within the housing; the substrate having a mounting surface;
a first light-emitting diode (“LED”) disposed on the mounting surface of the substrate and configured such that light emitted
by the LED is visible through the illumination window of the housing; the LED having a primary illumination axis which is
at an angle greater than 0° with respect to a perpendicular axis of the substrate; and

an additional LED disposed on the mounting surface of the substrate and having a primary illumination axis different from
the primary illumination axis of the first LED, and which is at an angle greater than 0° from a perpendicular axis of the
substrate.

US Pat. No. 10,342,081

LED DRIVER FOR PROVIDING POWER TO PARALLEL LEDS

Astronics DME LLC, Ft. L...

1. An LED driver, comprising:a constant current power source;
a switch electrically connected to the constant current power source, the switch having at least two outputs wherein the switch is configured to selectively connect the constant current power source to each of the at least two outputs; and
wherein the switch is configured to connect each of the at least two outputs for a pre-determined period of time, wherein the pre-determined period of time is selected such that one or more LEDs connected to an output are connected and disconnected at a rate imperceptible to an observer.