FLUORESCENT LAMP AND MANUFACTURE OF ELECTRODE ASSEMBLY FOR FLUORESCENT LAMP

    公开(公告)号:JP2001035438A

    公开(公告)日:2001-02-09

    申请号:JP2000186152

    申请日:2000-06-21

    Abstract: PROBLEM TO BE SOLVED: To provide a fluorescent lamp dispensing with a heater power source and operable at low voltage by providing a first electrode comprising a lead wire having an electron emitting material piece at the free end and a second electrode having a cup-like tube for enclosing the lead wire and electron emitting material piece, and forming an annular cavity between the cut-like tube and the electron emitting material piece. SOLUTION: A first electrode comprises a lead wire 20 and an electron emitting material piece 30 provided at the free end of the lead wire 20. The electron emitting material piece 30 is formed by dipping the end of the lead wire 20 in a liquid solution in which a radiating material is dispersed. A second electrode 22 is formed in the same manner as the first electrode, and it comprises a metal tube 32. The metal tube 32 is put on the lead wire 20 and electron emitting material piece 30 while providing an annular cavity, and caulked to the lead wire 20. Electrode assemblies 16, 18 are baked in vacuum and sealed to a glass tube, and a discharge gas such as argon is sealed therein. The length of the cup-like metal tube 32 is set to 2-2.5 times the inside diameter, whereby the lamp discharge is ingeniously performed to extend the lamp life. The electron emitting material allows the thermoionic operation with low current and low power.

    DISCHARGE LAMP
    2.
    发明专利

    公开(公告)号:JP2000149867A

    公开(公告)日:2000-05-30

    申请号:JP31690699

    申请日:1999-11-08

    Abstract: PROBLEM TO BE SOLVED: To provide a lamp with no mercury, by making an arc tube out of a group of materials such as yttria, gadolinium oxide and terbium oxide, sealing gas containing noble gas in the arc tube, inputting metal barium, supporting bath ends of the arc tube by a fixing rack and disposing the arc tube and its fixing rack in an outer tube of glass to seal it by a lamp base. SOLUTION: A conductive arc tube fixing rack 12 supports an arc tube 10. An additive of either one of metal sodium, calcium and strontium is added in the arc tube 10 in order to balance colors. An outer tube 20 of glass is fixed to a lamp base 23, and is a screw type nickel-plated base of brass to be inserted in a screw socket. A stem of glass 24 is protruded in the outer tube 20 and is sealed. Lead wires 26, 28 are extended through the stem 24, and are sealed and held in it to form an electrical connection part from the outside of the tube of glass 20 to the inside.

    MERCURY-FREE DISCHARGE LAMP
    3.
    发明申请
    MERCURY-FREE DISCHARGE LAMP 审中-公开
    无汞排放灯

    公开(公告)号:WO2013009383A1

    公开(公告)日:2013-01-17

    申请号:PCT/US2012036890

    申请日:2012-05-08

    CPC classification number: H01J65/048

    Abstract: The present invention provides a low pressure metal halide fluorescent lamp (100). The metal halide fluorescent lamp may have an oblate spheroid cavity discharge vessel (102) filled with an ionizable metal halide surrounding an exciter housing. An exciter (102) within the exciter housing (108) may drive the ionizable metal halide in an inductively coupled electrode - less manner. One or more embodiments may include one or more heat spreaders (114) and/or thermal transfer pipes for transferring heat from the exciter to a surface of the oblate discharge vessel.

    Abstract translation: 本发明提供一种低压金属卤化物荧光灯(100)。 金属卤化物荧光灯可具有填充有围绕激励器外壳的可电离金属卤化物的扁球形腔体放电管(102)。 激励器外壳(108)内的激励器(102)可以以感应耦合无电极方式驱动可电离金属卤化物。 一个或多个实施例可以包括一个或多个散热器(114)和/或传热管,用于将热量从激励器传递到扁平放电管的表面。

    LED CONTROL USING MODULATION FREQUENCY DETECTION TECHNIQUES

    公开(公告)号:CA2805945C

    公开(公告)日:2016-06-21

    申请号:CA2805945

    申请日:2011-09-01

    Abstract: A light emitting diode (LED) controller for controlling a plurality of LED channels includes channel select circuitry, detection circuitry, and error processor circuitry. The channel select circuitry is configured to drive N-l LED channels of a plurality of LED channels at a nominal modulation frequency and to selectively drive a selected one of the N LED channels at a probe modulation frequency. The detection circuitry is configured to receive a composite brightness signal corresponding to brightness signals from the N LED channels. The detection circuitry is further configured to filter the composite bright signal and generate a selected brightness signal corresponding to a brightness of the selected LED channel at the probe modulation frequency. The error processor circuitry is configured to compare the selected brightness signal to user defined and/or preset photometric quantities and generate a control signal for adjusting the brightness of the selected LED channel.

    LAMP WITH PHOSPHOR LAYER ON AN EXTERIOR SURFACE AND METHOD OF APPLYING THE PHOSPHOR LAYER

    公开(公告)号:CA2541895A1

    公开(公告)日:2006-12-28

    申请号:CA2541895

    申请日:2006-04-03

    Abstract: A method of making a mercury-free fluorescent lamp in which a layer of phosphor particles are applied to an exterior surface of the lamp envelope, includes preparing a so l- gel precursor solution that, when dried, leaves a sol-gel residue material, such as thin film SiO2, that coats the phosphor particles and resists removal of the phosphor particles from the exterior surface, dipping the envelope into the sol-gel precursor solution, and, after removin g the envelope from the solution, drying the sol-gel precursor solution to form a network of the sol-gel residue material on the exterior surface that meshes with the layer of phosphor particles. The sol-gel residue material attaches the phosphor particles to the exterior surface wit h sufficient strength so that the lamp can be handled as if the layer of phosphor particles were on t he interior of the envelope.

    Integrierter Treiber eines Nullenergiespeichers in einem LED-Chipträger

    公开(公告)号:DE112013000619T5

    公开(公告)日:2014-11-06

    申请号:DE112013000619

    申请日:2013-01-21

    Abstract: LED-Vorrichtungen werden bereitgestellt, die LED-Chips auf LED-Chipträgern enthalten. Die LED-Vorrichtung kann ihrerseits in einem Gehäuse aufgenommen werden, wie etwa ein Small-Outline Transistorgehäuse (SOT-Gehäuse) (Gehäuse mit kleinen, kompakten Maßen) oder ein radiales LED-Vorrichtungsgehäuse. Eine einzelne LED-Vorrichtung oder eine Reihenverbindung von mehreren solcher LED-Vorrichtungen kann von einer Wechselspannung (Leitung) oder von einer gleichgerichteten Version davon direkt betrieben werden. In einigen Ausführungsbeispielen ist die Schaltungstechnik in die LED-Chipträger integriert, um den Stromfluss durch die LED(s) als Reaktion auf ein Steuersignal, zum Beispiel auf ein die Leuchtdichte regulierendes Steuersignal, zu steuern. Zahlreiche Ausführungsbeispiele der monolithischen LED-Vorrichtungen werden bereitgestellt einschließlich ihrer Herstellungsverfahren sowie verschiedene Beispielgehäuse für solche LED-Vorrichtungen.

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