Light sources incorporating light emitting diodes
First Claim
1. A light source comprising:
- a housing portion including, at least in part, a rigid substantially tubular structure;
a connector disposed at an end of the housing portion;
at least one light emitting diode mounted on a flexible substrate located in the housing, the at least one light emitting diode electrically coupled to the connector and the flexible substrate having a curved portion; and
a power supply circuit for supplying electrical current to the at least one light emitting diode, the power supply circuit electrically coupled to the connector, wherein the power supply circuit comprises a rectifier for converting AC to DC power, an electrical circuit that modulates the DC power from the rectifier and at least one current limiting circuit including an inductive element connected to an output of the electrical circuit that modulates the DC power and to an input of the at least one light emitting diode.
2 Assignments
0 Petitions
Accused Products
Abstract
A light source including at least one light emitting diode and, optionally, a housing portion surrounding the light emitting diode. The at least one light emitting diode can be an organic light-emitting diode sheet. The at least one light emitting diode is preferably enclosed in a housing portion comprising a hollow bulb-shaped portion formed of glass, plastic, etc. The housing portion can be filled partially or completely by a potting material. Alternatively, the housing portion can be formed of a potting material or a conformal coating material. At least one connector is coupled to the end of the housing portion. A power supply circuit supplies electrical current to the at least one light emitting diode through the connector.
221 Citations
17 Claims
-
1. A light source comprising:
-
a housing portion including, at least in part, a rigid substantially tubular structure; a connector disposed at an end of the housing portion; at least one light emitting diode mounted on a flexible substrate located in the housing, the at least one light emitting diode electrically coupled to the connector and the flexible substrate having a curved portion; and a power supply circuit for supplying electrical current to the at least one light emitting diode, the power supply circuit electrically coupled to the connector, wherein the power supply circuit comprises a rectifier for converting AC to DC power, an electrical circuit that modulates the DC power from the rectifier and at least one current limiting circuit including an inductive element connected to an output of the electrical circuit that modulates the DC power and to an input of the at least one light emitting diode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification