729 results about "Electrodeless lamp" patented technology

Methods and systems for providing illumination of a specimen for a process performed on the specimen are provided. One system configured to provide illumination of a specimen for a process performed on the specimen includes a laser configured to generate excitation light. The system also includes focusing optics configured to focus the excitation light to a plasma in an electrodeless lamp such that the plasma generates light. The system is also configured such that the light illuminates the specimen during the process.

Use of a side resonator group comprising a plurality of side resonators, each including both an electromagnetically inductive function section made of a substantially ringed conductive material and an electrically capacitive function section made of a gap, so arranged in a circle as to make said electrically capacitive function sections opposed to the center as high frequency energy supply means, enables a high frequency discharge to take place in a smaller space than that observed in use of a conventional cavity resonator. Besides, application of said high frequency energy supply means to a high frequency electrodeless lamp device enables high frequency energy to be effectively coupled even with a relatively small size of electrodeless discharge lamp.

A dimmable electrodeless light source includes an electrodeless lamp, an electronic ballast and a dimming module. The light source further includes coupling transformers coupled to the electrodeless lamp for inductively coupling power to the lamp to generate light. An auxiliary winding electromagnetically coupled to the primary winding of at least one of the coupling transformers is driven by switching circuitry in the dimming module. The switching circuitry is pulse width modulated to control the average brightness of the light generated by the electrodeless lamp. An exemplary application for the dimmable electrodeless light source is as a backlight for a video display device, such as a liquid crystal display unit. The dimmable electrodeless light source further includes a magnetic shield device that is operably positioned with respect to the electrodeless lamp. The magnetic shield device produces a magnetic field that substantially opposes, and cancels, the magnetic field that is produced by the electrodeless lamp when energized. In an alternative embodiment, the magnetic shield device produces a magnetic field which, when combined with the lamp magnetic field, results in a total magnetic field that is substantially constant regardless of the energization level of the lamp (e.g., totally energized or dimmed). The magnetic shield thus reduces visual artifacts that might otherwise appear on a video display unit due to a variation of the magnetic field produced by the lamp.

The invention discloses a Mn-Zn ferrite with broad temperature, broadband, high curie point and low loss and a preparation method thereof, the composition calculated by content of oxides is as follows: 52-57mol% of Fe2O3, 3-7mol% of ZnO and the balance of MnO; a first auxiliary component comprises 0.01wt%-0.1wt% of CaO and 0.005wt%-0.02wt% of SiO2; a second auxiliary component comprises one or more of V2O5, Nb2O5, Ta2O5, ZrO2, K2O and NiO, and the content is 0-0.2wt% by calculation, and a third auxiliary component comprises 0.04-0.075wt% of SnO2, 0.08-0.15wt% of TiO2 and 0.05-0.5wt% of Co2O3, wherein, the content of TiO2 is twice as much as that of SnO2. Pre-burning under the protection of nitrogen, sintering, the control of cooling atmosphere and the densification process are carried out, thereby leading the Mn-Zn ferrite with broad temperature, broadband and high curie point to not only meet the market demands of magnetic cores of electromagnetic couplers for electrodeless lamps, but also open up a vast world for new applications of a variety of high frequency power ferrite magnetic cores in communication and strong electric fields.

An electrodeless lamp and process for emitting ultraviolet and/or vacuum ultraviolet radiation comprises an envelope formed of an ultra-pure and/or low-defect quartz material and an ultraviolet and/or vacuum ultraviolet emissive material disposed in the interior region of the envelope. The electrodeless lamp formed of the ultra-pure and/or low-defect quartz material minimizes degradation during use.

An electrodeless self-ballasted fluorescent lamp includes an electrodeless fluorescent lamp 3, a ballast circuit 4 and a lamp base which are formed as one unit. The ballast circuit 4 includes: an AC-DC converter 5; a DC-AC converter 6 formed so as to intermittently drive the electrodeless fluorescent lamp 3; and a dimming controller 7 formed so as to detect the turn-on of a phase-controlled AC voltage and output an intermittent command signal for changing the ratio between an operating period and an extinguishing period to the DC-AC converter 6. Furthermore, the dimming controller 7 is formed so as to output a signal for extinguishing the electrodeless fluorescent lamp 3 before the operation thereof becomes unstable.

An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb assemblies simplifies manufacturability, improves resonant frequency control, and enables the use of solid, partially filled, and hollow lamp bodies.

A lamp assembly comprising one or more lamp clusters. Each lamp cluster comprises one or more electrodeless UV lamps which are excited by microwaves emitted from a microwave generator. The microwave generator and power supply are enclosed within a housing that is integral with the lamp clusters. The lamp clusters are wholly surrounded by a waveguide. The waveguide, comprising a flange and a distal end cap connected by a mesh, forms an enclosure. The waveguide is essentially UV transparent to allow UV light to pass through but effectively opaque to microwaves in order to substantially contain the microwaves within the waveguide enclosure.

The present invention discloses waste water treating microwave and light catalyzing method and apparatus. After grille depurating, still standing to deposit and pH regulation, the waste water to be further treated is microwave and light catalyzed in the waste water treating microwave and light catalyzing apparatus. The apparatus includes microwave reaction oven, waste water reaction chamber inside the microwave reaction oven, no-electrode lamp inserted inside the annular fixer on the inner wall of the waste water reaction chamber, and quartz stirrer set inside the waste water reaction chamber with shaft connected to the outer rotating motor. The present invention has prolonged service life of no-electrode lamp, raised photocatalytic degrading efficiency, simple apparatus, low power consumption and other advantages, and the combined microwave effect and photocatalytic oxidizing technology results in high organic matter eliminating rate.

The invention relates to a wide-temperature-range superposed low-power-consumption high-Curie-temperature manganese/zinc ferrite material and a preparation method thereof, belonging to the technical field of soft magnetic ferrite materials. The manganese/zinc ferrite material comprises main components and additives, wherein the main components comprises the following materials in percentage by mass measured by oxide: 69.0-72.5% of Fe2O3, 6-10% of ZnO and the balance of Mn3O4, Fe2O3, with the sum of the Mn3O4 and ZnO being 100%; the additives comprises the following materials by weight percent measured by oxide: 0.02-0.07% of CaO, 0.02-0.08% of Nb2O5, 0.02-0.08% of V2O5, 0.05-0.25% of TiO2, 0.08-0.6% of CO2O3, 0.003-0.10% of ZrO2, 0.04-0.4% of NiO, 0.02-0.10% of MgO, and the like. The manganese/zinc ferrite material disclosed by the invention is mainly used in the fields of home electronics, communications, optoelectronics, automotive electronics and like, and is especially applicable for new fields of electrodeless lamp electromagnetic coupler core markets as well as automotive electronics, strong current, inverter air conditioners, etc. The manganese/zinc ferrite material has the beneficial effects of low power consumption, wide temperature range, high Curie temperature and the like.

The utility model discloses a preparation method for a high performance magnetic powder core used for high frequency electrodeless lamp circuits, which is characterized in that first, the carbonyl iron dust with 0.4 to 0.5% carbon, 0.4 to 0.6% oxygen and 0.5 to 0.6% nitrogen, as well as a mean particle size of 1 to 8 micron, is dehumidified; second, the carbonyl iron dust is phosphatized by wet method; third, the carbonyl iron dust is compounded and covered by high temperature resistant silicone and is dried under vacuum and room temperature conditions to get finished carbonyl iron magnetic powder core; fourth, the carbonyl iron magnetic powder core is put into the mold and is processed by dry pressing, thus the high performance magnetic powder core used for high frequency electrodeless lamp circuit is acquired. The utility model has the advantages of adjustable range of magnetic permeability (Me:3 to 35), excellent factor of quality (Q value) under the circumstances that the working frequency is in the range of 100KHz to 100MHz, high stability of high direct current deflector field and low temperature rise magnetic permeability, and therefore is applicable to high frequency electrodeless lamps with the working frequency 2.65MHz.

The present invention relates to a coaxial waveguide electrodeless lamp. The lamp is formed in analogy to coaxial waveguide cables, with an outer conductor, a central conductor, and a gas-fill vessel made of dielectric material between the outer conductor and the inner conductor. The gas-fill vessel is substantially hollow and filled with substances that form a plasma and emit light when RF radiation carried by the central conductor and ground conductor interacts with the substances in the gas-fill vessel. The present invention also relates to a leaky waveguide electrodeless lamp. The lamp is formed in analogy to leaky waveguides, with a conductor, a ground conductor, and a gas-fill vessel made of dielectric material butted against the conductor and encompassed by the ground conductor. The leaky waveguide electrodeless lamp emits light from a plasma similar to light-emission action of the coaxial waveguide electrodeless lamp described above.

A kind of high frequency nonpolar lamp, includes: high frequency electron resource (1), nonpolar discharge bulb (3) and the power coupler (2) that is set in its cavity (31); the upper section of the heat conduction metal bar that is used for supporting contacts with the cylinder shape magnetic core (22) in the middle of the power coupler (2); the heat conduction metal bar uses the heat tube (21) that has capillary tube structure (211) inside, the seal tube cavity of the heat tube (21) is filled with work fluid, the bottom end of which connects with one heat dispersing block (5); the heat quantity it produces when the power coupler (2) works make the work fluid at the top of the hot tube (21) boiloff and flow into the bottom of the hot tube (21) and release heat quantity outwards through the heat dispersing block (5), afterwards, which becomes liquid state and then is absorbed by the capillary tube structure (211) and then returns to the top of the hot tube (21) , the said circulation of the work fluid in the hot tube (21) can bring away high efficiently the heat quantity it produces continuously by the said power coupler (2). The technology plan of the invention can improve dramatically the heat dispersing efficiency of high frequency nonpolar lamp, therefore the service lifespan of the high frequency nonpolar lamp can be improved, and there is possibility to produce high power high frequency nonpolar lamp.

The invention relates to an ultraviolet light deeply crosslinked ethylene-propylene-diene mischpolymere rubber cable material and a preparation method of an insulation and protective sleeve layer thereof. The invention is characterized in that: ethylene-propylene-diene mischpolymere rubber and grafting modified ethylene-propylene-diene mischpolymere rubber are used as a base stock, an inorganic filler, a photoinitiation system consisting of a cation photoinitiator and a radical photoinitiator and the like are added, and the cable material is made by blending and extrusion; and a coated cable insulation or protective sleeve layer is subjected to molten online continuous ultraviolet light radiation in an ultraviolet radiation crosslinking equipment which is provided with a thermoelectron excited medium voltage mercury arc lamp or an H-type, D-type or V-type microwave-excited electrodeless lamp as a special light source to obtain a deeply and uniformly crosslinked ethylene-propylene-diene mischpolymere rubber cable insulation or protective sleeve layer. The cable material and the preparation technique have the advantages that: the needed crosslinking equipment is low in investment; the process is simple; the operation and maintenance are convenient; the production efficiency is high; the product cost is low and product quality is high; and energy conservation and environment protection are realized. Thus, the cable material and the preparation technique can be widely used for manufacturing high-performance special crosslinked rubber wire and cable products and the like.

Task To provide a projector using a light source device that is rapidly and reliably turned on and can stably obtain a desired amount of light and a method of rapidly and reliably turning on a light source device of a projector. Means for Resolution A power control unit adjusts the amplification factor of an amplifying unit for microwaves such that microwave power having a pulse form that is higher than the microwave power radiated to keep an electrodeless lamp emitting light is radiated to turn on the electrodeless lamp. Therefore, a microwave having predetermined power is radiated to the electrodeless lamp at once.

The invention discloses a special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and a preparation method. The principal phase of the nickel-zinc ferrite material is spinel structure comprising Fe2O3, ZnO, NiO and Co2O3, wherein the composing and content are calculated in oxides comprising: Fe2O3 48mol%-56mol%, ZnO 15mol%-22mol%, NiO 20mol%-33mol%, Co2O3 0.001mol%-0.004. The invention can prepare a novel nickel-zinc soft magnetic ferrite with ultra wide temperature, high stability and low electromagnetic loss in high frequency and high current by using suitable formula and appropriate technological parameter, and the nickel-zinc ferrite material can do normal work in high temperature. The invention is contribute to reduce the electromagnetic loss and heat of the high frequency electronic discharge lamp inductive coupler, so as to guarantee the normal and stable work and is good for miniaturizing of device, therefore the material has very wide market prospect in novel electrodeless discharge lamp lighting system.

The invention discloses a joint treatment device for organic waste gas. The organic waste gas is subjected to the joint treatment of oil removal, photoelectric treatment and adsorption filtering. An oil removal device is arranged in front of photoelectric equipment, and an adsorption filtering device is arranged behind the photoelectric equipment, wherein the oil removal device is selected from an activated carbon fiber filter screen, a stainless steel wire demister and/or a cyclone purifier; a microwave generator of the photoelectric equipment generates a microwave field to excite an electrodeless lamp to generate ultraviolet photolysis oxygen and nano-photocatalyst and organic waste gas cleaning catalyst to generate ozone so as to rapidly oxidize the organic waste gas; the adsorption filtering device adsorbs and filters the organic waste gas, purified gas is emitted after reaching standards, and saturated adsorption materials are incinerated. The organic waste gas is subjected to oil removal, photolytic oxidation fission and adsorption filtering treatment after entering the device, and the gas finally emitted from an emission port reaches the emission standards. The invention also discloses a method for performing the joint treatment of oil removal, photoelectric treatment and adsorption filtering on the organic waste gas by utilizing the joint treatment device for the organic waste gas.

The invention discloses an atomic excitation state anomalous dispersion atom light filter and a method for filtering signal light. The filter comprises a first polarizing device, a second polarizing device, at least one electrodeless lamp and a heating element; the electrodeless lamp is located between the first polarizing device and the second polarizing device; the maximum extinction effect on light without rotation effect is realized in polarizing directions of the first and second polarizing devices; a static magnetic field which is adjustable in size and direction is formed in the electrodeless lamp; the both ends of the electrodeless lamp close to the polarizing device can transmit light; and the heating element is fixed to the electrodeless lamp. The method for filtering the signallight comprises the following steps of: 1) adjusting size of the static magnetic field in the light filter; 2) heating and starting the electrodeless lamp; and 3) making the signal light pass throughthe second polarizing device after passing through the first polarizing device and the electrodeless lamp for rotation of polarizing surface to obtain filtered signal light. Because the atom light filter composed of the electrodeless lamp is used, a pumping laser system can be removed so that cost, volume and complexity of the light filter can be greatly reduced.

Methods and systems for providing illumination of a specimen for inspection are provided. One embodiment relates to a system configured to provide illumination of a specimen for inspection. The system includes an electrodeless lamp configured to generate light. The system is further configured such that the light illuminates the specimen during the inspection. Another embodiment relates to a system configured to inspect a specimen. The system includes an electrodeless lamp configured to generate light and one or more optical elements configured to direct the light to the specimen. The system also includes a detection subsystem configured to generate output responsive to light from the specimen. The output can be used to detect defects on the specimen. An additional embodiment relates to a method for providing illumination of a specimen for inspection. The method includes illuminating the specimen during the inspection with light generated by an electrodeless lamp.

The invention relates to an ultraviolet deep crosslinked halogen-free flame-retardant ethylene-propylene-diene monomer (EPDM) rubber cable material and a preparation method of an insulating or sheathing layer thereof. The method is characterized by comprising the following steps of: mixing and extruding to form the cable material by using EPDM rubber and graft modified EPDM rubber as base materials and compounding a metal hydroxide flame retardant, light initiating bodies of a cationic photoinitiator and a free radical photoinitiator and the like; and then performing molten on-line continuousultraviolet irradiation on a coated cable insulating or sheathing layer in ultraviolet irradiation cross-linking equipment provided with a thermal electronic excited medium-voltage mercury arc lamp or a microwave excited H-shaped, D-shaped or V-shaped electrodeless lamp serving as a specific light source to prepare the ultraviolet deep crosslinked halogen-free flame-retardant EPDM rubber cable insulating or sheathing layer. The technology has unique advantages that: the required cross-linking equipment is low in investment; the process is simple and high in production efficiency; the product has low cost and good quality; and the method is energy-saving and environment-friendly, and is widely used for manufacturing high-performance crosslinked flame-retardant rubber wire and cable products.

The invention relates to a multiphase parallel resonant converter for an electrodeless lamp and a light adjusting control method. The multiphase parallel resonant converter is composed of a switching network, a resonant network and an electrodeless lamp load. The switching network is composed of n bridge arms which are connected in parallel, wherein one bridge arm is used as a phase-shift bridge arm and is used for light adjusting control, the rest (n-1) bridge arms which are connected in parallel are same-phase drive bridge arms, the power output of the resonant converter can be enlarged, and the current stress of a switching tube is reduced. The light adjusting control method in which phase shift and phase lock are combined is also provided. The parallel resonant converter can always work nearby the inherent resonance points of the resonant network in the same-phase driving and phase-shift light adjusting process, adverse effects of drifting of the inherent resonance points caused by the change of the resonant network and lamp load parameters on the work of the lamp are avoided, and it is guaranteed that the electrodeless lamp works stably and reliably.

The output wavelengths of an electrodeless lamp are controlled by passing a fluid over the surface of the lamp to control its temperature. The stabilized temperature prevents thermal runaway of the lamp and stabilizes the output wavelengths of the lamp. When the fluid passing over the lamp is water, the lamp can be used for sanitary treatment of the water. The treatment can be enhanced by shaping the electrodeless lamp to provide maximally effective water treatment.

The invention relates to a method for designing resonance parameters of a resonant converter for an electrodeless lamp. The high-frequency LCCL resonant converter is composed of a half-bridge inverter circuit, a series-parallel resonant loop and a coupling coil, wherein the half-bridge inverter circuit is composed of a switch tube Q1 and a switch tube Q2, the series-parallel resonant loop is composed of a resonant inductor Lr, a resonant capacitor Cr, a blocking capacitor Cb and an excitation inductor Lc, and the coupling coil is composed of the excitation inductor Lc and an electrodeless lamp tube plasma discharging ring. After values of the Cb and the Lc are determined, the resonant parameters Lr and Cr are determined through a formula. In the formula, Leq and Req express an equivalent inductor and an equivalent resistor of the coupling ring auxiliary edge lamp tube plasma discharging ring mapped to the original edge, f expresses the work frequency of the resonant converter, and fo expresses the natural resonance frequency of the resonant loop. According to the method, it can be guaranteed that when the natural resonance frequency of the circuit is changed, ZVS soft switching of the electrodeless lamp can be still achieved, and the maximum power is output.

The invention provides an electrodeless lamp fixture which comprises a lamp shade, an electrodeless lamp, a heat conduction metal rod, an excitation source, a main amalgam storage tube, an inner tube, a bulb glass shell, an excitation coil and an auxiliary amalgam, wherein the lamp shade is provided with a lamp holder; the electrodeless lamp is installed on the lamp holder and comprises a lamp opening which cooperates with the lamp holder; the heat conduction metal rod and the excitation source are installed on the lamp opening; a concave cavity is arranged between the inner tube and the heat conduction metal rod; the excitation coil is positioned in the concave cavity; the magnetic core of the excitation coil and the heat conduction metal rod form a socket joint; and the position of the auxiliary amalgam on the outer wall of the inner tube is the farthest away from the emergent surface of the lamp shade, so that the auxiliary amalgam is positioned at the highest point of the outer wall of the inner tube after the electrodeless lamp is installed on the lamp holder. The embodiment of the invention can ensure that the auxiliary amalgam is installed at the highest point of the outer wall of the inner tube, thus when the electrodeless lamp is started, hot gas ascends under the convection effect of gas, thereby ensuring highest temperature at the highest point. Therefore, the auxiliary amalgam is arranged in the position the temperature of which rises at the highest speed, thereby promoting mercury atoms to be evaporated out of the auxiliary amalgam so that the electrodeless lamp can be quickly started.

Task To provide a projector using a light source device that is rapidly turned on and emit light with high energy efficiency. Means for Resolution

Microwaves having different phases are radiated from antennas to three branched light emitting areas in an electrodeless lamp. Light emitted from the three light emitting areas are radiated from one light radiating area of the electrodeless lamp. The microwaves having the maximum amplitude and a plurality of phases are sequentially radiated onto the three light emitting areas, which makes it possible for the electrodeless lamp 1 to emit light with high energy efficiency.