LIGHT EMITTING DIODE REPLACEMENT BULBS
First Claim
1. An illumination device, comprising:
- a bulb connector;
a body structure having a first end portion and a second end portion;
an insulating layer between the bulb connector and the first end portion of the body structure;
a first light source comprising a first plurality of light emitting diodes arranged towards the first end portion of the body structure;
a first reflector that is positioned about the first end portion of the body structure;
a second light source comprising at least one light emitting diode arranged towards the second end portion of the body structure;
a second reflector that is positioned about the second end portion of the body structure between the first light source and the second light source, the second reflector generally concave relative to the second light source;
a heat sink that extends from the body structure to draw away heat from at least one of the first and second light sources; and
a controller situated within the body structure that receives power through the bulb connector and supplies power to each of the light emitting diodes.
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Accused Products
Abstract
An illumination device comprises a bulb connector, a body structure and an insulating layer between the bulb connector and a first end portion of the body structure. The illumination device further comprises a first plurality of light emitting diodes arranged towards the first end portion of the body structure and a second light source comprising at least one light emitting diode arranged towards the second end portion of the body structure. A heat sink extends from the body structure and a controller within the body structure receives power through the bulb connector and supplies power to each of the light emitting diodes. As such, the illumination device can directly replace an incandescent bulb. Thus for example, the illumination device can replace an incandescent bulb of a traffic light without requiring changes to the compartment, fixture, reflector, or window/lens.
3 Citations
20 Claims
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1. An illumination device, comprising:
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a bulb connector; a body structure having a first end portion and a second end portion; an insulating layer between the bulb connector and the first end portion of the body structure; a first light source comprising a first plurality of light emitting diodes arranged towards the first end portion of the body structure; a first reflector that is positioned about the first end portion of the body structure; a second light source comprising at least one light emitting diode arranged towards the second end portion of the body structure; a second reflector that is positioned about the second end portion of the body structure between the first light source and the second light source, the second reflector generally concave relative to the second light source; a heat sink that extends from the body structure to draw away heat from at least one of the first and second light sources; and a controller situated within the body structure that receives power through the bulb connector and supplies power to each of the light emitting diodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An illumination system, comprising:
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a lighting fixture having; a compartment; a socket connector within the compartment; a window along an outside surface of the compartment opposite the socket connector; and a compartment reflector within the compartment about the socket connector opposite the window; and an illumination device comprising; a screw base bulb connector; a body structure having a first end portion and a second end portion; an insulating layer between the bulb connector and the first end portion of the body structure; a first reflector that is positioned about the first end portion of the body structure; a first light source comprising a first plurality of light emitting diodes arranged towards the first end portion of the body structure; a second reflector that is positioned about the second end portion of the body structure; a second light source comprising at least one light emitting diode arranged about the second end portion of the body structure; a heat sink that extends from the body structure to draw away heat from at least one of the first and second light sources; and a controller situated within the body structure that receives power through the bulb connector and supplies power to each of the light emitting diodes; wherein; light emitted from the first and second light sources cooperate with the compartment reflector to produce an output of light that is uniform throughout its spot size through the window of the compartment. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A traffic light comprising:
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a traffic light housing having at least one illumination device compartment, each compartment having; a socket connector; a window that allows light to pass through from the compartment; and a compartment reflector arranged around the socket connector so as to be generally concave relative to the window; an illumination device, comprising; a screw base bulb connector that screws into the socket connector; a body structure having a first end portion and a second end portion; an insulating layer between the bulb connector and the first end portion of the body structure; a first reflector that is positioned about the first end portion of the body structure; a first light source comprising a first plurality of light emitting diodes arranged towards the first end portion of the body structure; a second reflector that is positioned about the second end portion of the body structure; a second light source comprising at least one light emitting diode arranged about the second end portion of the body structure; a heat sink that extends from the body structure to draw away heat from at least one of the first and second light sources; and a controller situated within the body structure that receives power through the bulb connector and supplies power to each of the light emitting diodes; wherein; the first light source emits light that is reflected off at least one of the first reflector and the compartment reflector, before passing through the window and the second light source emits light at least some light that is reflected off the second reflector before passing through the window. - View Dependent Claims (19, 20)
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Specification