Lighting device, heat transfer structure and heat transfer element
First Claim
1. A lighting device, comprising:
- a housing having a substantially circular, substantially annular portion;
a reflector disposed within the housing;
a light emitter;
a heat pipe in thermal communication with the light emitter and the housing, the heat pipe comprising at least a first internal space and at least one fluid in the first internal space, the heat pipe having a thermal transfer region and at least a first thermal exchange region, the first internal space in the first thermal exchange region extending in a shape which follows at least a first portion of the substantially circular, substantially annular portion of the housing, the first internal space in the thermal transfer region extending in a shape which extends along at least substantially an entire radius of the substantially circular, substantially annular portion of the housing, the radius in a plane that is perpendicular to an axis of the substantially circular, substantially annular portion of the housing.
4 Assignments
0 Petitions
Accused Products
Abstract
A heat pipe configured to transfer heat from a central portion of a lighting device to an edge portion of the lighting device, the heat pipe comprising one region which extends along a portion of a diameter of a substantially circular, substantially annular shape and another region that extends along a diameter of the shape. Also, a lighting device comprising a housing, a reflector, a light emitter and a heat pipe as described above. Also, a self ballasted lamp comprising a solid state light source, an electrical connector, an AC power supply, a reflector configured to receive light from the source and emit reflected light from an aperture, and a thermal management system. Also, a lighting device, comprising a housing, a reflector, a light emitter comprising an array of solid state light emitters, a heat pipe and a sensor.
105 Citations
34 Claims
-
1. A lighting device, comprising:
-
a housing having a substantially circular, substantially annular portion; a reflector disposed within the housing; a light emitter; a heat pipe in thermal communication with the light emitter and the housing, the heat pipe comprising at least a first internal space and at least one fluid in the first internal space, the heat pipe having a thermal transfer region and at least a first thermal exchange region, the first internal space in the first thermal exchange region extending in a shape which follows at least a first portion of the substantially circular, substantially annular portion of the housing, the first internal space in the thermal transfer region extending in a shape which extends along at least substantially an entire radius of the substantially circular, substantially annular portion of the housing, the radius in a plane that is perpendicular to an axis of the substantially circular, substantially annular portion of the housing. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 30, 31, 32)
-
-
2. A lighting device as recited in claim wherein the portion of the first thermal exchange region extends at least 10 degrees along the first portion of the substantially circular substantially annular shape.
-
11. A heat transfer element for a solid state lighting device, comprising:
-
a heat pipe, the heat pipe comprising at least a first internal space and at least one fluid in the first internal space, the heat pipe configured to transfer heat from a central portion of a substantially circular, substantially annular shaped portion of the lighting device to an edge portion of the lighting device, remote from the central portion of the lighting device, the heat pipe comprising; a thermal transfer region, the first internal space in the thermal transfer region extending in a shape that extends along at least substantially an entire radius of the substantially circular, substantially annular shape, the radius in a plane that is perpendicular to an axis of the substantially circular, substantially annular portion of the housing; and a first thermal exchange region, the first internal space in the first thermal exchange region extending in a shape that comprises at least a first portion of the substantially circular, substantially annular shape. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 33, 34)
-
-
20. A lighting device, comprising:
-
a housing; a reflector disposed within the housing; a light emitter comprising an array of solid state light emitters; a heat pipe in thermal communication with the light emitter and the housing; and at least a first sensor, the first sensor on the reflector within a region which receives direct light from the light emitter when the light emitter is emitting light, the first sensor within a conical region bounded by lines which each define an angle of ten degrees or less relative to an axis of direct light emitted by the light emitter. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
-
Specification