Other

Adb Airfield Solutions, LLC

Siemens Airfield Solutions

Innovative Sensor Solutions, Ltd

Vilnis E Kubulins

Richard L Hansler

Edward Carome

Martin Aaron Alpert

David L Ruffini

An electric lamp includes a first light source and a second light source and power circuitry configured to selectively energize the first light source and the second light source. The first light source is configured to produce light that is substantially free of wavelengths below about 530 nanometers, and the second light source is configured to product light having wavelengths of less than about 530 nanometers. The electric lamp is configured to produce white or near-white light in a variety of color temperatures, while retaining good color rendering index.

Multi-chip light emitting diode light device

Described herein is a LED PAPI having an array of light emitting diodes (LEDs), the array of LEDs comprising a first set of LEDs emitting a first color and a second set of LEDs emitting a second color. Light from the array of LEDs passes through a pair of apertures separated by a precision ground blade. The precision ground blade has a first edge that is closest to the array of LEDs and a second edge opposite the first edge. The first and second edges have different thicknesses. After passing through the apertures, the light passes through a first lens and a second lens.

Light emitting diode precision approach path indicator (LED PAPI)

A runway and taxiway lighting system (of FIG.). The system () includes a housing () as part of a light assembly (), which light assembly () includes a light source () for emitting light (), and a light pipe (). The light pipe () has a first end () in close association with the light source () for coupling the light () thereinto, and a second end () from which the light () is dispersed. The system () also includes a power source encased in a power box (), and operatively connected to the light assembly () for providing power thereto.

Elevated airfield runway and taxiway edge-lights utilizing light emitting diodes

An optical sensor for determining an index of refraction of a substance being monitored includes a light source (20). An optical element (24) having a coupling surface (30) and a measuring surface (26) is arranged such that light directed into the optical element (24) through the coupling surface (30) is partially reflected twice from the measuring surface such that it is directed to and exits through the coupling surface (30). The measuring surface (26) is preferably spherical. An input optical fiber (22) having first and second ends directs light emitted from the light source to the coupling surface of the optical element. The first and second ends of the input optical fiber (22) are optically coupled to the coupling surface (30) of the optical element (24) and the light source, respectively. An output optical fiber (28) has first and second ends and directs light expelled from the coupling surface (30) of the optical element (24) to a photodetector (50). The first and second ends of the output optical fiber (28) are optically coupled to the coupling surface (30) of the optical element (24) and the photodetector, respectively. The amount of light that is partially reflected at each reflection from the measuring surface (26) is dependent upon the difference between the index of refraction of the optical element (24) and the index of refraction of the substance being monitored (12) which is adjacent the measuring surface (26) of the optical element.

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Walton Hills, OH, United States of America

Vilnis E Kubulins