Convective cooling based lighting fixtures
Convective cooling based lighting fixtures are disclosed. In some embodiments, a lighting fixture comprises a paddle configured to move in one or more directions and a set of one or more heat generating lighting elements mounted on the paddle. The motion of the paddle results in convective cooling of the set of lighting elements.
1 . A lighting fixture, comprising:
a paddle configured to move in one or more directions; and
a set of one or more heat generating lighting elements mounted on the paddle;
wherein motion of the paddle results in convective cooling of the set of lighting elements.
2 . The lighting fixture recited in claim 1 , wherein the paddle is configured to rotate about an axis of rotation.
3 . The lighting fixture recited in claim 1 , wherein the paddle is configured to move translationally.
4 . The lighting fixture recited in claim 1 , further comprising a motor coupled to the paddle and configured to move the paddle.
5 . The lighting fixture recited in claim 1 , further comprising a casing in which one or more components of the lighting fixture including the paddle are situated.
6 . The lighting fixture recited in claim 5 , wherein the casing includes an inlet valve and an outlet valve for exchange of air between a cavity of the lighting fixture and an external environment.
7 . The lighting fixture recited in claim 5 , wherein the casing includes a cover lens.
8 . The lighting fixture recited in claim 5 , wherein the casing includes a heat sink shell.
9 . The lighting fixture recited in claim 1 , further comprising a plate positioned above the paddle and configured to move in an opposite direction as the paddle.
10 . The lighting fixture recited in claim 1 , wherein the set of lighting elements comprises light emitting diodes (LEDs).
11 . The lighting fixture recited in claim 1 , wherein the set of lighting elements comprises high powered light emitting diodes (LEDs).
12 . The lighting fixture recited in claim 1 , wherein the paddle comprises a printed circuit board (PCB).
13 . The lighting fixture recited in claim 1 , wherein the paddle is circularly shaped.
14 . The lighting fixture recited in claim 1 , wherein the lighting fixture comprises a set of one or more paddles including the paddle.
15 . The lighting fixture recited in claim 1 , wherein at least one lighting element comprises a lighting element configured to dissipate heat via a top surface of the lighting element.
16 . The lighting fixture recited in claim 15 , wherein the at least one lighting element comprises a light emitting diode die topped with one or more transparent, thermally conductive materials.
17 . The lighting fixture recited in claim 16 , wherein the one or more transparent, thermally conductive materials comprise one or more of silicon dioxide (SiO 2 ) and indium tin oxide (ITO).
18 . The lighting fixture recited in claim 1 , wherein the lighting fixture comprises one or more of a spotlight, a stadium light, a stage light, and a concert light.
19 . A method for providing a lighting fixture, comprising:
configuring a paddle to move in one or more directions; and
mounting a set of one or more heat generating lighting elements on the paddle;
wherein motion of the paddle results in convective cooling of the set of lighting elements.
20 . A light emitting diode, comprising:
a light emitting diode die;
a layer of silicon dioxide (SiO 2 ) deposited on the light emitting diode die; and
a layer of indium tin oxide (ITO) deposited on the layer of silicon dioxide.