发明名称 |
RECOGNITION/ANTI-COLLISION LIGHT FOR AIRCRAFT |
摘要 |
A recognition light includes a reflector having an axis and first and second annular semi-parabolic reflective surfaces (40, 42) which have respective focal points axially spaced apart from one another, and first and second annular lamps (34, 36) respectively disposed at the focal points. A cover (14) surrounds the reflector and lamps and includes a lens (20) 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.
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申请公布号 |
CA2349601(C) |
申请公布日期 |
2008.03.18 |
申请号 |
CA19992349601 |
申请日期 |
1999.11.05 |
申请人 |
GODFREY ENGINEERING, INC. |
发明人 |
DRAVES, RAYMOND HENRY;DEMARCO, RALPH ANTHONY;KNIGHT, TODD CHRISTOPHER;KIELBON, TIMOTHY SCOTT;PATEL, ANISH VIKRAM;STEPHENS, MERLE KEITH |
分类号 |
B64D47/06;B60Q1/26;F21V7/00;F21V13/04 |
主分类号 |
B64D47/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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