Ralph A Demarco

US Patent:

6642856, Nov 4, 2003

Filed:

Aug 21, 2001

Appl. No.:

09/933935

Inventors:

Ralph Anthony DeMarco - Palm Harbor FL
Raymond Henry Draves - Safety Harbor FL
Timothy Scott Kielbon - Lutz FL
Todd Christopher Knight - Tampa FL
Anish Vikram Patel - Odessa FL
Merle Keith Stephens - St. Petersburg FL

Assignee:

Goodrich Lighting Systems, Inc. - Oldsmar FL

International Classification:

B64D 4706

US Classification:

340981, 250205, 315149, 340458

Abstract:

A recognition light includes a reflector having an axis and first and second annular semi-parabolic reflective surfaces which have respective focal points axially spaced apart from one another, and first and second annular lamps respectively disposed at the focal points. A cover surrounds the reflector and lamps and includes a lens for focusing the light along a plane perpendicular to the axis of the reflector, the lens including first and second Fresnel lens portions each including a convex lens and a prism lens, the convex lenses being disposed adjacent one another and transaxially aligned with the first and second lamps, respectively. A light detector detects light emitted from at least one of the lamps, a monitor circuit provides a fail signal when a characteristic of the light output of at least one of the lamps does not satisfy a specified criteria, and a control circuit first activates the first lamp and then the second lamp in response to receipt of the fail signal of the monitor circuit.

US Patent:

6989768, Jan 24, 2006

Filed:

Sep 2, 2003

Appl. No.:

10/653847

Inventors:

Ralph Anthony DeMarco - Palm Harbor FL, US
Raymond Henry Draves - Safety Harbor FL, US
Timothy Scott Kielbon - Lutz FL, US
Todd Christopher Knight - Tampa FL, US
Anish Vikram Patel - Odessa FL, US
Merle Keith Stephens - St. Petersburg FL, US

Assignee:

Goodrich Corporation - Charlotte NC

International Classification:

B64D 47/06

US Classification:

340981, 362470, 362548

Abstract:

A recognition light includes a reflector having an axis and first and second annular semi-parabolic reflective surfaces which have respective focal points axially spaced apart from one another, and first and second annular lamps respectively disposed at the focal points. A cover surrounds the reflector and lamps and includes a lens for focusing the light along a plane perpendicular to the axis of the reflector, the lens including first and second Fresnel lens portions each including a convex lens and a prism lens, the convex lenses being disposed adjacent one another and transaxially aligned with the first and second lamps, respectively. A light detector detects light emitted from at least one of the lamps, a monitor circuit provides a fail signal when a characteristic of the light output of at least one of the lamps does not satisfy a specified criteria, and a control circuit first activates the first lamp and then the second lamp in response to receipt of the fail signal of the monitor circuit.

US Patent:

62783823, Aug 21, 2001

Filed:

Nov 6, 1998

Appl. No.:

9/187495

Inventors:

Ralph Anthony DeMarco - Palm Harbor FL
Raymond Henry Draves - Safety Harbor FL
Timothy Scott Kielbon - Lutz FL
Todd Christopher Knight - Tampa FL
Anish Vikram Patel - Odessa FL
Merle Keith Stephens - St. Petersburg FL

International Classification:

B64D 4706

US Classification:

340981

Abstract:

A recognition light includes a reflector having an axis and first and second annular semi-parabolic reflective surfaces which have respective focal points axially spaced apart from one another, and first and second annular lamps respectively disposed at the focal points. A cover surrounds the reflector and lamps and includes a lens for focusing the light along a plane perpendicular to the axis of the reflector, the lens including first and second Fresnel lens portions each including a convex lens and a prism lens, the convex lenses being disposed adjacent one another and transaxially aligned with the first and second lamps, respectively. A light detector detects light emitted from at least one of the lamps, a monitor circuit provides a fail signal when a characteristic of the light output of at least one of the lamps does not satisfy a specified criteria, and a control circuit first activates the first lamp and then the second lamp in response to receipt of the fail signal of the monitor circuit.