A lamp (600) comprising a solid state light emitter (450), the lamp being an A lamp and providing a wall plug efficiency of at least 90 lumens per Watt. Also, a lamp (400) comprising a solid state light emitter (450) and a power supply, the emitter being mounted on a heat dissipation element (420), the dissipation element being spaced from the power supply. Also, a lamp, comprising a solid state light emitter and a heat dissipation element that has a heat dissipation chamber, whereby an ambient medium can enter the chamber, pass through the chamber, and exit. Also, a lamp(10), comprising a light transmissive housing (12) at least one solid state lighting emitter and a first heat dissipation element. Also, a lamp comprising a heat sink comprising a heat dissipation chamber. Also, a lamp comprising first and second heat dissipation elements. Also, a lamp comprising means (74) for creating flow of ambient fluid.

Heat sinks and lamp incorporating same

An electro-kinetic electro-static air conditioner includes a mechanism to clean the wire-like electrodes in the first electrode array. A length of flexible Mylar type sheet material projects from the base of the second electrode array towards and beyond the first electrode array. The distal end of each sheet includes a slit that engages a corresponding wire-like electrode. As a user moves the second electrode array up or down within the conditioner housing, friction between slit edges and the wire-like electrode cleans the electrode surface. The sheet material may be biasedly pivotably attached to the base of the second electrode array, and may be urged away from and parallel to the wire-like electrodes when the conditioner is in use. Another embodiment includes a bead-like member having a through opening or channel, through which the wire-like electrode passes. As the conditioner is turned upside down and rightside up, friction between the opening in the bead-like member and wire-like electrode cleans the electrode surface. The bead-like member may be made of ceramic, glass, or even metal. The through channel may be symmetrically formed in the bead-like member, but preferably will be asymmetrical to create a mechanical moment and increased friction with the surface of the wire-like electrode being cleaned.

Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices

An electro-kinetic electro-static air conditioner includes a self-contained ion generator that provides electro-kinetically moved air with ions and safe amounts of ozone. The ion generator includes a high voltage pulse generator whose output pulses are coupled between first and second electrode arrays. Preferably the first array comprises one or more wire electrodes spaced staggeringly apart from a second array comprising hollow “U”-shaped electrodes. Preferably a ratio between effective area of an electrode in the second array compared to effective area of an electrode in the first array exceeds about 15:1 and preferably is about 20:1. An electric field produced by the high voltage pulses between the arrays produces an electrostatic flow of ionized air containing safe amounts of ozone. A bias electrode, electrically coupled to the second array electrodes, affects net polarity of ions generated. The outflow of ionized air and ozone is thus conditioned.

Electro-kinetic air transporter-conditioner

The present invention relates to cooling systems, and in particular to cooling systems providing forced convective gaseous flow for dissipating heat off of light-emitting diodes (LED). According to one aspect, a cooling system employs a heat sink in combination with an EHD pumping mechanism such as corona wind or micro-scale corona wind or by a temporally controlled ion-generation technique. For LEDs a channel-array structure can be employed to embody the heat sink. The EHD pumps are located at the inlet or outlet of the heat sink channels. Many advantages are achieved by the cooling system of the invention, including that the entire system can have similar or better performance than a conventional heat sink and fan system but with one-tenth the volume and weight and can operate silently. The present invention also relates to a method of fabricating a micro-channel heat sink employing EHD gas flow for use in LED cooling.

Electro-hydrodynamic gas flow led cooling system

An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the immediately adjacent initial or forward-most electrodes of a next stage in an airflow direction. A single power supply or synchronized and phase controlled power supplies provide high voltage power to each of the stages such that both the phase and amplitude of the electric power applied to the corresponding electrodes are aligned in time. The frequency and phase control allows neighboring stages to be closely spaced at a distance of from 1 to 2 times an inter-electrode distance within a stage, and, in any case, minimizing or avoiding production of a back corona current from a corona discharge electrode of one stage to an electrode of a neighboring stage. Corona discharge electrodes of neighboring stages may be horizontally aligned, complementary collector electrodes of all stages being similarly horizontally aligned between and horizontally offset from the corona discharge electrodes.

Electrostatic fluid accelerator for and a method of controlling fluid flow

An electrostatic fluid accelerator having a multiplicity of closely spaced corona electrodes (1). The close spacing of such corona electrodes (1) is obtainable because such corona electrodes (1) are isolated from one another with exciting electrodes (2). Either the exciting electrode (2) must be placed asymmetrically between adjacent corona electrodes (1) or an accelerating electrode must be employed. The accelerating electrode can be either an attracting (13) or a repelling electrode (19). Preferably, the voltage between the corona electrodes (1) and the exciting electrodes (2) is maintained between the corona onset voltage and the breakdown voltage with a flexible top high-voltage power supply. Optionally, however, the voltage between the corona electrodes (1) and the exciting electrodes (2) can be varied, even outside the range between the corona onset voltage and the breakdown voltage, in order to vary the flow of fluid. And, to achieve the greatest flow of fluid, multiple stages (28, 29 and 30) of the individual Electrostatic Fluid Accelerator are utilized with a collecting electrode (31 or 32) between successive stages (28, 29 and 30) in order to preclude substantially all ions and other electrically charged particles from passing to the next stage (28, 29 or 30), where they would tend to be repelled and thereby impair the movement of the fluid. Finally, constructing the exciting electrode (2) in the form of a plate that extends downstream with respect to the desired direction of fluid flow also assures that more ions and, consequently, more fluid particles flow downstream.

Robert L Fuhriman

Papers

Electrostatic fluid accelerator