1. A light emitting diode (LED) lamp comprising:
a lamp base;
an optical lens system;
an LED mounted in the optical lens system; and
a heat dissipation device interconnecting the lamp base and the optical lens system, the heat dissipation device comprising:
a heat sink comprising a central block, a plurality of fins extending radially and outwardly from an outer circumferential face of the central block and a receiving hole defined axially through the central block; and
a heat pipe interferentially fitted in the receiving hole and in thermal contact with the LED;
wherein the central block has an elliptical cross-section which is perpendicular to an axis of the central block.
2. The LED lamp of claim 1 further comprising a heat conducting plate on which the LED is mounted, the heat dissipation device being in thermal contact with the heat conducting plate.
3. The LED lamp of claim 1, wherein the heat pipe has an evaporator in thermal contact with the LED and two condensers extending from opposite ends of the evaporator into the central block.
4. The LED lamp of claim 3, wherein the heat sink further comprises another receiving hole defined axially through the central block, and the condensers are received in the receiving hole and the another receiving hole.
5. The LED lamp of claim 4, wherein the heat pipe has a U-shaped configuration.
6. The LED lamp of claim 4, wherein the receiving hole and the another receiving hole are extended through two foci of the elliptical cross-section of the central block, respectively.
7. An LED lamp comprising:
a lamp base adapted for connecting with a lamp socket thereby to receive power;
a heat dissipation device mounted on the lamp base, comprising:
a frame having a shell with a bottom connecting with the base and a plurality of arms extending upwardly from the shell;
at least a heat sink mounted in the frame, having a central block and a plurality of fins extending radially and outwardly from a circumference of the block; and
a heat pipe having a first portion extending into the central block of the at least a heat sink and a second portion located outside the central block of the at least a heat sink;
a LED thermally connected with the second portion of the heat pipe; and
an optical lens system having a tubular body connecting with the plurality of arms and a lens mounted at a top end of the tubular body.
8. The LED lamp of claim 7 further comprising a fan for generating an airflow through the at least a heat sink.
9. The LED lamp of claim 8, wherein the heat pipe is U-shaped, having an evaporator and two condensers extending from two opposite ends of the evaporator, the evaporator being located outside the central block of the at least a heat sink and in thermal connection with the LED, the condensers extending into the central block of the at least a heat sink.
10. The LED lamp of claim 8, wherein the at least a heat sink includes two juxtaposed heat sinks each having a central block and a plurality of fins extending radially and outwardly from a circumference of the central block of the each heat sink, and the heat pipe is U-shaped, having an evaporator and two condensers extending from two opposite ends of the evaporator, the evaporator being located outside the central blocks of the two heat sinks and in thermal connection with the LED, the condensers extending into the central blocks of the two heat sinks, respectively.
11. The LED lamp of claim 7, wherein the heat pipe is U-shaped, having an evaporator and two condensers extending from two opposite ends of the evaporator, the evaporator being located outside the central block of the at least a heat sink and in thermal connection with the LED, the condensers extending into the central block of the at least a heat sink.
12. The LED lamp of claim 7, wherein the at least a heat sink includes two juxtaposed heat sinks each having a central block and a plurality of fins extending radially and outwardly from a circumference of the central block of the each heat sink, and the heat pipe is U-shaped, having an evaporator and two condensers extending from two opposite ends of the evaporator, the evaporator being located outside the central blocks of the two heat sinks and in thermal connection with the LED, the condensers extending into the central blocks of the two heat sinks, respectively.
13. A light emitting diode (LED) lamp comprising:
a lamp base;
an optical lens system;
an LED mounted in the optical lens system; and
a heat dissipation device interconnecting the lamp base and the optical lens system, the heat dissipation device comprising:
a heat sink comprising a central block, a plurality of fins extending radially and outwardly from an outer circumferential face of the central block and a receiving hole defined axially through the central block;
a heat pipe interferentially fitted in the receiving hole and in thermal contact with the LED; and
another heat sink, the another heat sink comprising a central block, a plurality of fins extending radially and outwardly from an outer circumferential face of the central block of the another heat sink and a receiving hole defined axially through the central block of the another heat sink;
wherein the heat pipe comprises an evaporator in thermal contact with the LED and two condensers extending from opposite ends of the evaporator into the receiving hole of the heat sink and the receiving hole of the another heat sink, respectively.
14. The LED lamp of claim 13, wherein the heat pipe has a U-shaped configuration.
15. The LED lamp of claim 13, wherein the heat sink and the another heat sink are juxtaposed with each other.
16. The LED lamp of claim 13, wherein the heat dissipation device further comprises a frame, the frame comprises a hollow tubular shell and a plurality of arms pointing to the optical lens system, wherein the shell has an edge coupled to the lamp base, and the plurality of arms extend from the shell and are retained in the optical lens system.
17. The LED lamp of claim 16, wherein the heat dissipation device further comprises an impeller disposed in the shell to blow airflow toward the heat sink and the another heat sink.
18. The LED lamp of claim 16, wherein the arms each have a rib formed thereon to strengthen the arms.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A volumetric display comprising of a glass cube filled with gas and multiple planes of thin wires arranged in alternating orthogonal layers. These wires may be set at voltage potentials capable of producing a glow discharge at the intersection of pairs of wires. Using a computer capable of storing 4-D image data and electronic controllers capable of exciting pairs of wires appropriately at the proper time 3-D dynamic images may be formed from the multiple glows between energized wire pairs.
2. The volumetric display of claim 1 wherein the air-tight enclosure consists of 4 fully transparent glass sides affording 360* view of the dynamic 3-D image inside, and one bottom glass side which has transparent wire leads feeding through but is otherwise transparent and viewable.
3. The volumetric display of claim 1 wherein the glow discharges occur at extremely precise locations (<10 \u03bcm) as determined by the spacing and size of the glass-coated thin tungsten wires strung under tension through holes in glass frames inside the glass cube.
4. The volumetric display of claim 1 wherein colors are determined by appropriate mixture of gases (typically noble gases\u2014He, Ne, Ar, Kr, Xe) and excitation voltages, inside the cube.
5. The volumetric display of claim 1 wherein brightness is determined by appropriate mixture and pressure of the gases as well as by the magnitude and timing of the applied voltages and the current limiters placed on each wire.
6. A volumetric display comprising of a glass cube filled with gas and multiple planes of thin wires arranged in alternating orthogonal layers. These wires may be set at voltage potentials capable of producing a glow discharge at the intersection of pairs of wires. Using a computer capable of storing 4-D image data and electronic controllers capable of exciting pairs of wires appropriately at the proper time true-life 3-D dynamic images may be formed from the multiple glows between energized wire pairs.
7. The volumetric display of claim 6 wherein the glow discharges occur at extremely precise locations (<10 \u03bcm) as determined by the spacing and size of the glass-coated thin tungsten wires strung under tension through holes in glass frames inside the glass cube.
8. The volumetric display of claim 6 wherein a close packed cubic array of coated gas-filled glass beads form each voxel within the cubic glass enclosure.
9. The volumetric display of claim 6 wherein each voxel’s transparency is determined by an electrical signal applied by two orthogonal wire pairs to the coating which may be an electrochromic material.
10. The volumetric display of claim 6 wherein each voxel is one of 3 different noble gas mixtures energized by two orthogonal wire pairs to emit a different colored glow which together determine the color of a full voxel.
11. A volumetric display comprising of a glass panel filled with gas and 3 planes of thin wires arranged in alternating orthogonal layers. These wires may be set at voltage potentials capable of producing a glow discharge at the intersection of pairs of wires. Using a computer capable of storing 4-D image data and electronic controllers capable of exciting pairs of wires appropriately at the proper time a 2-D dynamic image may be formed from the multiple glows between excited wire pairs.
12. The volumetric display of claim 11 wherein the enclosure consists of 2 fully transparent glass sides affording full view of the dynamic 2-D image inside, and four remaining glass sides one of which has thin wire leads feeding through but is otherwise transparent and viewable.
13. The volumetric display of claim 11 wherein the display panel is rotate along its central axis and persistence of vision provides multiple observers with a full true-life 3-D dynamic image.
14. The volumetric display of claim 11 wherein the display panel and associated electronics to power the grid, and compute and update the image is located on a rapidly spinning turntable.
15. The volumetric display of claim 11 wherein the glow discharges occur at extremely precise locations (<10 \u03bcm) as determined by the spacing and size of the glass-coated tungsten wires strung under tension inside the glass panel.
16. The volumetric display of claim 11 wherein colors are determined by appropriate mixture of gases (typically noble gases\u2014He, Ne, Ar, Kr, Xe), phosphors, and excitation voltages inside the panel.
17. The volumetric display of claim 11 wherein brightness is determined by appropriate mixture and pressure of the gases as well as by the magnitude and timing of the applied voltages.