Precision approach path indicator systems and light assemblies useful in same
First Claim
1. An assembly for use in an airport approach path indicator system comprisinga mirror component including first and second substantially planar mirrored surfaces positioned to meet at an angle of about 90°
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at least one first light emitting diode and at least one second light emitting diode spaced apart from the at least one first light emitting diode, the light emitting diodes located so that the at least one first light emitting diode emits light reflected by the first mirrored surface, and the at least one second light emitting diode emits light reflected by the second mirrored surface; and
a projection lens positioned to allow light reflected by the first and second mirrored surfaces to pass therethrough.
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Accused Products
Abstract
Precision approach path indicator systems (PAPIs) effective in providing approach slope guidance for aircraft approaching an airport runway are provided. Such PAPIs include a plurality of light assemblies positioned on or in proximity to an airport runway and structured or configured to be effective in providing approach slope guidance light signals to a pilot of an aircraft approaching a runway. Each light assembly includes a light source comprising light emitting diodes (LEDs), preferably a first array of LEDs and a second array of LEDs.
23 Citations
43 Claims
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1. An assembly for use in an airport approach path indicator system comprising
a mirror component including first and second substantially planar mirrored surfaces positioned to meet at an angle of about 90° - ;
at least one first light emitting diode and at least one second light emitting diode spaced apart from the at least one first light emitting diode, the light emitting diodes located so that the at least one first light emitting diode emits light reflected by the first mirrored surface, and the at least one second light emitting diode emits light reflected by the second mirrored surface; and a projection lens positioned to allow light reflected by the first and second mirrored surfaces to pass therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A precision approach path indicator system effective in providing approach slope guidance for aircraft approaching an airport runway, the system comprising
a plurality of light assemblies positioned on or in proximity to an airport runway, and structured to be effective in providing approach slope guidance light signals to a pilot of an aircraft approaching a runway, each light assembly including a light source comprising light emitting diodes, each light assembly comprises a mirror component including first and second substantially planar mirrored surfaces; -
at least one first light emitting diode and at least one second light emitting diode spaced apart from the at least one first light emitting diode, the light emitting diodes located so that the at least one first light emitting diode emits light reflected by the first mirrored surface, and the at least one second light emitting diode emits light reflected by the second mirrored surface; and a projection lens positioned to allow light reflected by the first and second mirrored surfaces to pass therethrough, wherein the first and second mirrored surfaces are positioned in a manner substantially preventing light from the at least one first light emitting diode from being reflected from the second mirrored surface toward the projection lens, and preventing light from the at least one second light emitting diode from being reflected from the first mirrored surface toward the projection lens. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification