Lighting fixture
First Claim
1. A lighting apparatus comprising:
- a plurality of light-emitting diodes for emitting red, blue, and green light, the plurality of light-emitting diodes being operable to emit light beams and being arranged so as to emit the light beams toward a single focusing point;
a control circuit for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light;
a concave reflector for reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered; and
a position-changing mechanism for changing a position of at least one of the concave reflector and the plurality of light-emitting diodes,wherein the light-emitting diodes are arranged so that the light beams emitted therefrom will be reflected by the concave reflector,wherein the position-changing mechanism is operable to adjust a focal point of the concave reflector relative to the focusing point of the plurality of the light-emitting diodes so that the light beams from the light-emitting diodes are focused or scattered by the concave reflector.
1 Assignment
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Accused Products
Abstract
A lighting apparatus includes a plurality of light-emitting diodes emitting red, blue, and green light. The plurality of light-emitting diodes emit light beams and are arranged so as to emit the light beams toward a focusing point. A control circuit is provided for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light. A concave reflector is provided for reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered. The apparatus also has a position-changing mechanism for changing a relative position of the concave reflector relative to the focusing point of the light-emitting diodes.
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Citations
20 Claims
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1. A lighting apparatus comprising:
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a plurality of light-emitting diodes for emitting red, blue, and green light, the plurality of light-emitting diodes being operable to emit light beams and being arranged so as to emit the light beams toward a single focusing point; a control circuit for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light; a concave reflector for reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered; and a position-changing mechanism for changing a position of at least one of the concave reflector and the plurality of light-emitting diodes, wherein the light-emitting diodes are arranged so that the light beams emitted therefrom will be reflected by the concave reflector, wherein the position-changing mechanism is operable to adjust a focal point of the concave reflector relative to the focusing point of the plurality of the light-emitting diodes so that the light beams from the light-emitting diodes are focused or scattered by the concave reflector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lighting apparatus comprising:
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a plurality of light-emitting diodes for emitting red, blue, and green light, the plurality of light-emitting diodes being operable to emit light beams and being arranged so as to emit the light beams toward a focusing point; a control circuit for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light; a concave reflector for reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered; and adjusting means for adjusting a focal point of the concave reflector relative to the focusing point of the light-emitting diodes, wherein the adjusting means is operable to adjust the focal point of the concave reflector relative to the focusing point of the plurality of the light-emitting diodes so that the light beams from the light-emitting diodes are focused or scattered by the concave reflector, wherein a convex reflector is disposed between the concave reflector and the light-emitting diodes, and the convex reflector reflects the light focused from the light-emitting diodes to the focusing point, and the concave reflector reflects and radiates the light from the light-emitting diodes reflected by the convex reflector, so that the light is focused or scattered. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A lighting apparatus comprising:
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a plurality of light-emitting diodes for emitting red, blue, and green light, the plurality of light-emitting diodes being operable to emit light beams and being arranged so as to emit the light beams toward a focusing point; a control circuit for controlling the intensity of light emission of each of the light-emitting diodes emitting red, blue, and green light; a concave reflector for reflecting and radiating the light focused from the light-emitting diodes to the focusing point so that the light is further focused or scattered; and adjusting means for adjusting a focal point of the concave reflector relative to the focusing point of the light-emitting diodes, wherein the adjusting means is operable to adjust the focal point of the concave reflector relative to the focusing point of the plurality of the light-emitting diodes so that the light beams from the light-emitting diodes are focused or scattered by the concave reflector, wherein a conical reflector horn, an inner surface of which reflects the light emitted from the light-emitting diodes so as to focus the light to its tip portion, is disposed between the light-emitting diodes and the concave reflector, and the conical reflector horn focuses the light emitted from the plurality of light-emitting diodes to the focusing point. - View Dependent Claims (19, 20)
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Specification