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US 7,819,538 B2Granted
Rotating lamp
AssigneeArrow Co., Ltd.
InventorsIsao Nobayashi, Takashi Uchida
Life of this patent
Estimating the term…
Abstract
The inventive rotating lamp comprises a substrate, a translucent globe mounted on the substrate, a shaft portion set in the substrate, a rotatable member rotatably supported by the shaft portion, a main reflecting mirror, arranged on the upper surface of the rotatable member, having a light reflecting surface constituted of a paraboloid, a light-emitting diode and a drive portion rotating/driving the rotatable member, and the optical axis of the light-emitting diode and the reflecting surface of the main reflecting mirror intersect with each other. Thus, a rotating lamp employing a light-emitting diode capable of delivering light emitted from the rotating lamp to a distance place by improving reflection efficiency can be obtained.
Claims19
A rotating lamp comprising:
- a substrate;
- a translucent globe mounted on said substrate;
- a shaft portion set in said substrate;
- a rotatable member rotatably supported by said shaft portion;
- a reflecting mirror arranged on the upper surface of said rotatable member and at least partially constituted of a parabolic reflecting surface;
- a light-emitting diode functioning as a light source;
- a drive portion rotating/driving said rotatable member;
- and
- an auxiliary reflecting minor arranged on the upper surface of said rotatable member and opposed to said reflecting minor,
- wherein said light-emitting diode and said reflecting minor are arranged so that the optical axis of said light-emitting diode and said reflecting surface of said reflecting minor intersect with each other, and
- wherein said light-emitting diode is arranged between said auxiliary reflecting mirror and said reflecting mirror.
8 more elements
A rotating lamp comprising:
- a substrate;
- a translucent globe mounted on said substrate;
- a shaft portion set in said substrate;
- a rotatable member rotatably supported by said shaft portion;
- a reflecting minor arranged on the upper surface of said rotatable member and at least partially constituted of a parabolic reflecting surface;
- a light-emitting diode functioning as a light source;
- and
- a drive portion rotating/driving said rotatable member,
- wherein said light-emitting diode and said reflecting minor are arranged so that the optical axis of said light-emitting diode and said reflecting surface of said reflecting mirror intersect with each other,
- wherein a light emitter having said light-emitting diode includes an annular member and at least one platelike member arranged along the circumferential direction of said annular member so that a first end is arranged in said annular member, and
- wherein said platelike member includes an extensional portion extending outward from said annular member.
8 more elements
A rotating lamp comprising:
- a substrate;
- a translucent globe mounted on said substrate;
- a shaft portion set in said substrate;
- a rotatable member rotatably supported by said shaft portion;
- a reflecting minor arranged on the upper surface of said rotatable member and at least partially constituted of a parabolic reflecting surface;
- a light-emitting diode functioning as a light source;
- and
- a drive portion rotating/driving said rotatable member,
- wherein said light-emitting diode and said reflecting mirror are arranged so that the optical axis of said light-emitting diode and said reflecting surface of said reflecting mirror intersect with each other, and
- wherein said light-emitting diode is fixed to the upper wall of said globe.
7 more elements
A rotating lamp comprising:
- a substrate;
- a translucent globe mounted on said substrate;
- a shaft portion set in said substrate;
- a rotatable member rotatably supported by said shaft portion;
- a reflecting minor arranged on the upper surface of said rotatable member and at least partially constituted of a parabolic reflecting surface;
- a light-emitting diode functioning as a light source;
- and
- a drive portion rotating/driving said rotatable member,
- wherein said light-emitting diode and said reflecting mirror are arranged so that the optical axis of said light-emitting diode and said reflecting surface of said reflecting mirror intersect with each other,
- wherein said reflecting mirror includes said parabolic first reflecting surface and second and third reflecting surfaces arranged on both sides of said first reflecting surface,
- wherein said second reflecting surface reflects light from said light-emitting diode toward said substrate beyond reflected light reflected by said first reflecting surface, and
- wherein said third reflecting surface reflects said light toward the upper end of said reflecting mirror beyond said reflected light.
9 more elements
A rotating lamp comprising:
- a substrate;
- a translucent globe mounted on said substrate;
- a shaft portion set in said substrate;
- a rotatable member rotatably supported by said shaft portion;
- a reflecting minor arranged on the upper surface of said rotatable member and at least partially constituted of a parabolic reflecting surface;
- a light-emitting diode functioning as a light source;
- and
- a drive portion rotating/driving said rotatable member,
- wherein said light-emitting diode and said reflecting mirror are arranged so that the optical axis of said light-emitting diode and said reflecting surface of said reflecting mirror intersect with each other,
- further comprising a light guide guiding light from said light-emitting diode.
7 more elements
Dependencies are inferred from the claim text.