Solid State Lamp Using Light Emitting Strips
First Claim
1. A solid state lamp comprising:
- a plurality of flexible strips encapsulating light emitting diode (LED) dies, the LED dies being connected in series in the flexible strips,wherein the flexible strips are connected at one or more first terminals to a first voltage and connected at one or more second terminals to a second voltage;
a support structure for supporting the flexible strips; and
an electrical connector affixed to the support structure for connection to an external power source for providing drive current to the strips.
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Accused Products
Abstract
In one embodiment, an LED lamp has a generally bulb shape. The LEDs are low power types and are encapsulated in thin, narrow, flexible strips. The LEDs are connected in series in the strips to drop a desired voltage. The strips are affixed to the outer surface of a bulb form to provide structure to the lamp. The strips are connected in parallel to a power supply, which may be housed in the lamp. Since many low power LEDs are used and are spread out over a large surface area, there is no need for a large metal heat sink. Further, the light emission is similar to that of an incandescent bulb. In other embodiment, there is no bulb form and the strips are bendable to have a variety of shapes. In another embodiment, a light sheet is bent to provide 360 degrees of light emission. Many other embodiments are described.
263 Citations
20 Claims
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1. A solid state lamp comprising:
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a plurality of flexible strips encapsulating light emitting diode (LED) dies, the LED dies being connected in series in the flexible strips, wherein the flexible strips are connected at one or more first terminals to a first voltage and connected at one or more second terminals to a second voltage; a support structure for supporting the flexible strips; and an electrical connector affixed to the support structure for connection to an external power source for providing drive current to the strips. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification