CH177865A - Process for obtaining ultra-violet and light radiations of selected composition. - Google Patents
Process for obtaining ultra-violet and light radiations of selected composition.Info
- Publication number
- CH177865A CH177865A CH177865DA CH177865A CH 177865 A CH177865 A CH 177865A CH 177865D A CH177865D A CH 177865DA CH 177865 A CH177865 A CH 177865A
- Authority
- CH
- Switzerland
- Prior art keywords
- core
- winding
- frequency current
- charac
- housing
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/048—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Plasma & Fusion (AREA)
- Biomedical Technology (AREA)
- Electromagnetism (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Discharge Lamp (AREA)
- Radiation-Therapy Devices (AREA)
- Soft Magnetic Materials (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Particle Accelerators (AREA)
Description
Procédé d'obtention de radiations ultraviolettes et lumineuses de composition choisie. La présente invention comprend un pro cédé d'obtention de radiations ultraviolettes et lumineuses de composition choisie, selon la revendication I du brevet principal et qui est caractérisé en<B>ce</B> que l'excitation .du champ est assurée par induction électro magnétique à l'aide d'une source de courant à haute fréquence et d'un enroulement par couru par ce courant.
Elle comprend également un dispositif pour la mise en oeuvre de -ce procédé, suivant la revendication II -du brevet principal, et qui est caractérisé en<B>ce</B> que l'enceinte pré sente un logement pénétrant à l'intérieur -de celle-ci et dans lequel est disposé un noyau en substance magnétique, un enroulement re lié par ses extrémités à une source de -cou rant à haute fréquence étant disposé de ma nière à entourer -ce noyau.
On a déjà indiqué, au brevet principal, l'importance capitale d'une forte densité -de courant pour obtenir .des radiations ultra violettes et lumineuses de composition va riable choisie. Lorsqu'on agit par induction électromagnétique sardes gaz rares, tels que le krypton et le xénon,
cette forte densité est évidemment fonction croissante du taux de la variation du .champ magnétique en chaque point de l'enceinte. Ce taux peut être atteint avec des courants -de fréquence ne dépassant pas celle pouvant être produite industrielle ment par un alternateur, soit 30.000 pé riodes par seconde environ, à condition -d'a dopter des dispositions permettant -de réa liser un champ magnétique d'amplitude suf fisante.
Le dessin annexé représente, à titre d'exemple, deux formes -d'exécution du dis positif pour la mise en oeuvre -du procédé.
Sur la fig. 1, on a muni le ballon 1 -d'un manchon cylindrique 2 qui pénètre à l'inté rieur et forme logement étanche pour un en- roulement 3, dont les bornes 4 sont reliées à une source de -courant à haute fréquence telle qu'un alternateur, un triode générateur, etc. L'expérience prouve qu'on obtient ainsi l'ef fet désiré dans -d'excellentes conditions.
Ces -conditions sont d'ailleurs encore améliorées en disposant, .à l'intérieur de l'enroulement 3, un noyau en substance magnétique 5, formé, par exemple, par des bandes de tôles minces (placées radialement) ou par des fils de très petit diamètre, -dans le but de diminuer, comme connu, les pertes par courants de Foucault.
A ce point d e vue, il est avanta geux de constituer ledit noyau magnétique par -du métal à l'état pulvérulent, dont les grains sont agglomérés par une substance isolante convenable; l'expérience montre en effet qu'on peut atteindre ainsi, aux fré quences déjà de l'ordre radiotélégraphique, une perméabilité apparente d'au moins 7 à 8, les pertes .demeurant très acceptables.
Sur la fig. 2, l'enroulement inducteur 3 est bobiné à l'extérieur -de l'ampoule 1, ce qui peut présenter certains avantages -cons tructifs. Même avec cette .disposition, l'ad jonction d'un noyau ferromagnétique 5 dans le manchon 2, de préférence en fer pulvéru lent, conserve généralement un intérêt con sidérable, ainsi qu'on le vérifie expérimenta lement. Bien entendu, la longueur et le dia mètre optima sont à déterminer suivant -cha que application.
Quant à la courbe ,du courant magnétisant en fonction -du temps, elle peut différer éventuellement de la sinusoïde et affecter notamment une forme pointue, grâce à la présence d'harmoniques, d'amplitude accrue au besoin artificiellement par tous moyens connus (saturation magnétique, ete.).
Comme dans le brevet principal, les Dis- positifs décrits comprennent -des moyens pour produire .une excitation atteignant une grande intensité au moins -de manière instantanée, lesdits moyens d'excitation de l'atmosphère enclose par l'enceinte étant séparés d'au moins une paroi de l'enceinte servant à l'ir radiation par une distance suffisante pour que ladite paroi soit pratiquement soustraite à.
l'action excitatrice et demeure, de ee fait, sans l'intervention de moyens auxiliaires .de refroidissement, à une température suffi samment basse pour pouvoir être appliquée sur une partie à traiter.
Process for obtaining ultraviolet and light radiation of selected composition. The present invention comprises a process for obtaining ultraviolet and light radiations of selected composition, according to claim I of the main patent and which is characterized in <B> this </B> that the excitation of the field is ensured by induction electromagnetic using a source of high frequency current and a winding by run by this current.
It also comprises a device for the implementation of -this method, according to claim II -of the main patent, and which is characterized in <B> this </B> that the enclosure has a housing penetrating inside. -of the latter and in which is disposed a core of magnetic substance, a winding re linked by its ends to a source of high-frequency -cou rant being disposed in such a way as to surround this core.
The main patent has already indicated the capital importance of a high current density in order to obtain ultra violet and luminous radiations of variable composition chosen. When acting by electromagnetic induction Sardinian noble gases, such as krypton and xenon,
this high density is obviously an increasing function of the rate of variation of the magnetic field at each point of the enclosure. This rate can be reached with frequency currents not exceeding that which can be produced industrially by an alternator, i.e. approximately 30,000 periods per second, on condition that provisions are adopted which allow the creation of a magnetic field of suf ficient amplitude.
The appended drawing represents, by way of example, two forms of execution of the positive device for the implementation of the method.
In fig. 1, the balloon 1 was provided with a cylindrical sleeve 2 which penetrates inside and forms a sealed housing for a winding 3, the terminals 4 of which are connected to a high-frequency current source such as '' an alternator, a generator triode, etc. Experience has shown that the desired effect is thus obtained under excellent conditions.
These -conditions are also further improved by arranging, inside the winding 3, a core of magnetic substance 5, formed, for example, by strips of thin sheets (placed radially) or by wires of very small diameter, -in order to reduce, as known, eddy current losses.
From this point of view, it is advantageous to constitute said magnetic core by -du metal in the pulverulent state, the grains of which are agglomerated by a suitable insulating substance; experience shows that it is thus possible to achieve, at frequencies already of the radiotelegraph order, an apparent permeability of at least 7 to 8, the losses remaining very acceptable.
In fig. 2, the inductor winding 3 is wound on the outside of the bulb 1, which may have certain advantages -cons tructifs. Even with this arrangement, the addition of a ferromagnetic core 5 in the sleeve 2, preferably of slow powdered iron, generally retains considerable interest, as has been verified by experiment. Of course, the optimum length and diameter are to be determined according to each application.
As for the curve of the magnetizing current as a function of time, it may possibly differ from the sinusoid and in particular affect a pointed shape, thanks to the presence of harmonics, of amplitude increased if necessary artificially by any known means (magnetic saturation , summer.).
As in the main patent, the devices described comprise -means for producing an excitation reaching a high intensity at least instantaneously, said means for excitation of the atmosphere enclosed by the enclosure being separated from at least one wall of the enclosure serving for ir radiation by a sufficient distance so that said wall is practically subtracted from.
the exciting action and remains, therefore, without the intervention of auxiliary cooling means, at a sufficiently low temperature to be able to be applied to a part to be treated.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR743167X | 1931-12-26 | ||
DE409488X | 1933-01-09 | ||
CH171519T | 1934-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH177865A true CH177865A (en) | 1935-06-15 |
Family
ID=33565832
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH171519D CH171519A (en) | 1931-12-26 | 1932-11-22 | Process for obtaining ultraviolet radiation and light radiation of selected composition, and device for its implementation. |
CH177865D CH177865A (en) | 1931-12-26 | 1934-01-04 | Process for obtaining ultra-violet and light radiations of selected composition. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH171519D CH171519A (en) | 1931-12-26 | 1932-11-22 | Process for obtaining ultraviolet radiation and light radiation of selected composition, and device for its implementation. |
Country Status (6)
Country | Link |
---|---|
US (2) | US2049099A (en) |
AT (2) | AT138503B (en) |
CH (2) | CH171519A (en) |
FR (3) | FR743167A (en) |
GB (2) | GB404271A (en) |
NL (1) | NL42102C (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434980A (en) * | 1943-08-20 | 1948-01-27 | Maxwell M Bilofsky | Combination illuminating and sterilizing lamp |
US2465414A (en) * | 1946-04-04 | 1949-03-29 | Harold W Abshire | Gaseous discharge device |
US2473642A (en) * | 1948-01-09 | 1949-06-21 | Gen Electric | Low-pressure electric discharge device |
US2953718A (en) * | 1958-05-01 | 1960-09-20 | Plasmadyne Corp | Apparatus and method for generating high temperatures |
US2939049A (en) * | 1958-05-29 | 1960-05-31 | Plasmadyne Corp | Apparatus for generating high temperatures |
US2939048A (en) * | 1958-05-29 | 1960-05-31 | Plasmadyne Corp | Apparatus for creating extremely high temperatures |
US3240979A (en) * | 1962-06-22 | 1966-03-15 | Nicholson Henrietta | Vacuum tube envelope with terminal locating means |
US3417318A (en) * | 1965-01-28 | 1968-12-17 | Ling Temco Vought Inc | Method and apparatus for regulating high voltage in electrostatic generators |
US3500118A (en) * | 1967-07-17 | 1970-03-10 | Gen Electric | Electrodeless gaseous electric discharge devices utilizing ferrite cores |
US3521120A (en) * | 1968-03-20 | 1970-07-21 | Gen Electric | High frequency electrodeless fluorescent lamp assembly |
US3987334A (en) * | 1975-01-20 | 1976-10-19 | General Electric Company | Integrally ballasted electrodeless fluorescent lamp |
US3987335A (en) * | 1975-01-20 | 1976-10-19 | General Electric Company | Electrodeless fluorescent lamp bulb RF power energized through magnetic core located partially within gas discharge space |
US4017764A (en) * | 1975-01-20 | 1977-04-12 | General Electric Company | Electrodeless fluorescent lamp having a radio frequency gas discharge excited by a closed loop magnetic core |
US4005330A (en) * | 1975-01-20 | 1977-01-25 | General Electric Company | Electrodeless fluorescent lamp |
DE2601587B2 (en) * | 1975-01-20 | 1979-11-08 | General Electric Co., Schenectady, N.Y. (V.St.A.) | Fluorescent lamp |
US4010400A (en) * | 1975-08-13 | 1977-03-01 | Hollister Donald D | Light generation by an electrodeless fluorescent lamp |
US4812702A (en) * | 1987-12-28 | 1989-03-14 | General Electric Company | Excitation coil for hid electrodeless discharge lamp |
US5619103A (en) * | 1993-11-02 | 1997-04-08 | Wisconsin Alumni Research Foundation | Inductively coupled plasma generating devices |
US5621266A (en) * | 1995-10-03 | 1997-04-15 | Matsushita Electric Works Research And Development Laboraty Inc. | Electrodeless fluorescent lamp |
US6249090B1 (en) | 1996-07-03 | 2001-06-19 | Matsushita Electric Works Research & Development Laboratories Inc | Electrodeless fluorescent lamp with spread induction coil |
US5723947A (en) * | 1996-12-20 | 1998-03-03 | Matsushita Electric Works Research & Development Laboratories Inc. | Electrodeless inductively-coupled fluorescent lamp with improved cavity and tubulation |
CN1321331A (en) * | 1999-10-18 | 2001-11-07 | 松下电器产业株式会社 | Device for driving electrodeless discharge lamp |
US9524861B2 (en) | 2012-11-26 | 2016-12-20 | Lucidity Lights, Inc. | Fast start RF induction lamp |
US20140145616A1 (en) * | 2012-11-26 | 2014-05-29 | Lucidity Lights, Inc. | Reduced emi in rf induction lamp with ferromagnetic core |
US10128101B2 (en) | 2012-11-26 | 2018-11-13 | Lucidity Lights, Inc. | Dimmable induction RF fluorescent lamp with reduced electromagnetic interference |
US10529551B2 (en) | 2012-11-26 | 2020-01-07 | Lucidity Lights, Inc. | Fast start fluorescent light bulb |
US9460907B2 (en) | 2012-11-26 | 2016-10-04 | Lucidity Lights, Inc. | Induction RF fluorescent lamp with load control for external dimming device |
US20140375203A1 (en) | 2012-11-26 | 2014-12-25 | Lucidity Lights, Inc. | Induction rf fluorescent lamp with helix mount |
US10141179B2 (en) | 2012-11-26 | 2018-11-27 | Lucidity Lights, Inc. | Fast start RF induction lamp with metallic structure |
CN106353259B (en) * | 2016-11-09 | 2023-08-18 | 中国工程物理研究院流体物理研究所 | Method and device for measuring transient deuterium molecular pressure of deuterium-containing electrode vacuum arc ion source |
US10236174B1 (en) | 2017-12-28 | 2019-03-19 | Lucidity Lights, Inc. | Lumen maintenance in fluorescent lamps |
USD854198S1 (en) | 2017-12-28 | 2019-07-16 | Lucidity Lights, Inc. | Inductive lamp |
-
0
- FR FR743168D patent/FR743168A/fr not_active Expired
- NL NL42102D patent/NL42102C/xx active
-
1931
- 1931-12-26 FR FR743167D patent/FR743167A/fr not_active Expired
-
1932
- 1932-05-06 GB GB13153/32A patent/GB404271A/en not_active Expired
- 1932-06-20 US US618401A patent/US2049099A/en not_active Expired - Lifetime
- 1932-11-22 CH CH171519D patent/CH171519A/en unknown
- 1932-11-29 AT AT138503D patent/AT138503B/en active
-
1933
- 1933-03-07 GB GB6935/33A patent/GB409488A/en not_active Expired
- 1933-12-29 US US704558A patent/US2030957A/en not_active Expired - Lifetime
-
1934
- 1934-01-03 FR FR44386D patent/FR44386E/en not_active Expired
- 1934-01-03 AT AT140408D patent/AT140408B/en active
- 1934-01-04 CH CH177865D patent/CH177865A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR743167A (en) | 1933-03-25 |
NL42102C (en) | |
AT140408B (en) | 1935-01-25 |
US2030957A (en) | 1936-02-18 |
CH171519A (en) | 1934-08-31 |
AT138503B (en) | 1934-08-10 |
FR44386E (en) | 1934-12-29 |
US2049099A (en) | 1936-07-28 |
GB409488A (en) | 1934-05-03 |
GB404271A (en) | 1934-01-08 |
FR743168A (en) | 1933-03-25 |
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