Abstract:
The electrodeless discharge lamp of the present invention comprises: a bulb 1 provided with a substantially-spherical spherical portion 1a and a neck portion 1b extending from the spherical portion; a base 15 connected to the neck portion; a protrusion 4 formed at an apex of the spherical portion; and an induction coil 11a that causes light emission by discharge developed in the bulb. When defining the relations B=W/(4×p×(D/20)2), S=p×(d/20)2, L=p×(d/10), X=(B×S)/(L×A), where W (W) denotes the lamp input power, D (mm) denotes the diameter of the spherical portion, d (mm) denotes the diameter of a portion at a joint surface between the neck portion and the base, and A (mm) denotes the distance from a largest-diameter portion of the spherical portion to the joint surface, then the electrodeless discharge lamp satisfies the formula below: t−6=10959×X+25=t+6 (Formula) where t is the temperature (° C.) at the tip of the protrusion 4 during downward stable lighting of the electrodeless discharge lamp.
Abstract:
In an electrodeless discharge lamp (1) which is lit with PWM light control, a discharge gas including krypton is filled in a bulb (10), so that restriking voltage can be decreased and thus, and oscillation of the ferrite core (22) which is inserted inside of a cavity (5) of the bulb (10) can be decreased, and thus, occurrence of undesired sound can be restrained.
Abstract:
An electromagnetic discharge lamp system having a high frequency generator, a power coupler, a lamp with a heat convection channel (HCC) extending through the length of the lamp, and a lamp cap. A meshed metal cover is disposed at the tip of the lamp. The lamp cap has holes through which the ambient air is drawn into the lamp cap. The air drawn into the lamp cap flows through the channel, extracting heat energy generated by the power coupler, and exits through the meshed metal cover. The electromagnetic discharge lamp also includes a standard lamp mount for easy installation as well as reduction in maintenance cost.
Abstract:
An electrodeless discharge lamp device comprises an induction coil, a pair of cores 1a, 1b, and thermal conductor 2. The cores 1a, 1b are configured to generate a high-frequency electromagnetic field for exciting a discharge gas with receiving a high frequency electric power. Each of the cores is arranged to give an overall circumference around which the induction coil is wound. The thermal conductor is formed into an approximately cylindrical shape and inserted into the space so as to be thermally coupled with the cores for radiating heat generated at the cores. The core has its inside face at least center portion of which is spaced radially from the thermal conductor by a predetermined distance.
Abstract:
In an electrodeless lamp, at least one core assembly is coupled to a tubular lamp envelope. The core assembly includes a lamp envelope protector disposed over an outer surface of the lamp envelope, and a core member surrounding the lamp envelope at a core mounting location such that lamp envelope protector is disposed between the core member and the lamp envelope. The core assembly further includes a coil bobbin coupled to the core member, and a coil wounded around the coil bobbin.
Abstract:
In an electrodeless discharge lamp 1 comprising a bulb 10 into which discharge gas and mercury which is controlled at a temperature of a coldest spot are filled, a power coupler 20 generating high frequency electromagnetic field, and a ferrule 15 for coupling the bulb 10 and the power coupler 20, the bulb 10 is configured of a substantially spherical barrel 14 formed of a transparent material and having an opening, and a sealing member 11 welded to the opening of the barrel 14 and having a substantially cylindrical cavity 5; a protrusion 4, which becomes a coldest spot when the lamp is lit in a state that the ferrule 15 is disposed upward, is formed at an apex of the bulb 10; and a protruding portion 17 is formed in a vicinity of just above the ferrule 15 of the bulb 10, that is, in a bulb neck portion 19 so that the bulb neck portion 19 becomes the coldest spot when the lamp is lit in a state that the ferrule 15 is disposed downward. Thereby, a constant optical output is obtained regardless of a posture of installation of the electrodeless discharge lamp 1.
Abstract:
The present invention discloses a magnetic light, including an air-filled light body having an inner cavity, at least a through slot defined on the light body, and a fluorescent layer coated onto said inner cavity. A magnetic body is penetrating through the through slot for providing high frequency resonance purposes for replacing conventional filament so as to improve the efficiency and life span of the light.
Abstract:
An improved induction lighting system is presented where the electronic power supply device powering the induction lamp is insulated and an extensive set of heat sink fins is provided to control the temperature of the power supply. Reduction of power supply device temperature in this manner greatly extends the operational life of these devices.The improved induction lighting system is designed to be retrofitted into existing induction lighting systems, in all indoor and outdoor lighting applications.
Abstract:
A wrapper type combined magnetic energy generator and a magnetic energy lamp of the present invention belong to the field of illumination. Especially, it is a magnetic energy generator used in the magnetic energy lamp that can produce the electromagnetic energy to excite the illuminative devices. The magnets of the magnetic energy generator are two split type combined magnets. More than one flute is provided on one side of one magnet and the flutes of the two magnets correspond to each other. The fixed spaces are produced between the two flutes of the two magnets. The spaces are communicated with the two flutes to be located exactly. The lamp body of the magnetic energy lamp is provided and fixed on the magnetic energy generator. These two split type combined magnets of the magnetic energy generator wrap the hollow lamp body of the magnetic energy lamp, respectively. The structure of the present invention is simple. It can be made easily and its cost is low. So it provides a reliable technique implementation project for the large-scale industrialization.
Abstract:
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.