Dual beacon obstruction lighting system

• US 6,948,830 B1
• Filed: 01/14/2004
• Issued: 09/27/2005
• Est. Priority Date: 01/14/2004
• Status: Expired due to Fees

• Current Assignee: TWR Lighting, Inc.
• Original Assignee: TWR Lighting, Inc.
• Inventors: Petrick, John T.
• Primary Examiner(s): Husar, Stephen
• Assistant Examiner(s): Han, Jason
• Application Number:
  US10/757,082
• Time in Patent Office: 622 Days
• Field of Search: 362227-229, 362/336
• US Class Current: 362/229
• CPC Class Codes: F21S 10/06 flashing, e.g. with rotating reflector or light source signalling lighting devices mounted on vehicles B60Q1/26
• CPC Class Codes: F21V 5/045 the lens having discontinuous faces, e.g. Fresnel lenses
• CPC Class Codes: F21V 5/046 the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
• CPC Class Codes: F21W 2111/06 for aircraft runways or the like
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2113/20 of different form
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A white light generating portion is comprised of a gas discharge light source and a rotated cylindrical lens. A red light generating portion is comprised of a plurality of light emitting diodes.

Claims

1. A dual beacon obstruction lighting system for providing both light emitting diode emissions and gas energy emissions comprising, in combination:

a lower portion having a cylindrical configuration with an upper open end and an lower open end and a periphery there between and a lower baffle plate supporting the lower open end with a gas discharge light source for generating white light, the gas discharge light source being coupled to the lower baffle plate, the lower portion having an upper baffle plate with a central aperture to allow heat circulation located in the upper open end, the periphery of the lower portion being comprised of a Fresnel lens forming a rotated cylindrical lens in the central extent devised to capture a maximal portion of substantially omni directional light from the gas discharge light source;

a red light generating upper portion having a cylindrical configuration received over the upper extent of the lower portion and with an open upper end, an open lower end and a periphery there between with the open lower end including the upper baffle plate, the periphery being comprised of a translucent red material, the upper light emitting portion further having a cylinder with a plurality of rows of a plurality of equally spaced light emitting solid state diodes in each row and having a central aperture in the cylinder to allow cooling of the upper light emitting portion;

a cylindrical cover with a screen coupled to the open upper end of the upper portion with a central screened portion adapted to allow venting of the upper and lower portions; and

the gas discharge light source of the lower portion as well as the plurality of light emitting diodes of the upper portion adapted to be electrically coupled to an external energy source such that during day light hours the lower portion produces brilliant white flashes of light and during the night time hours the upper portion produces red flashes of light.