US1919490A - Source of light and method of operating the same - Google Patents

Source of light and method of operating the same Download PDF

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Publication number
US1919490A
US1919490A US620403A US62040332A US1919490A US 1919490 A US1919490 A US 1919490A US 620403 A US620403 A US 620403A US 62040332 A US62040332 A US 62040332A US 1919490 A US1919490 A US 1919490A
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US
United States
Prior art keywords
container
vessel
coil
source
mercury
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US620403A
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English (en)
Inventor
Lepel Egbert Von
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL39334D priority Critical patent/NL39334C/xx
Application filed by Individual filed Critical Individual
Priority to US620403A priority patent/US1919490A/en
Priority to DEL81905D priority patent/DE615732C/de
Priority to FR758409D priority patent/FR758409A/fr
Priority to GB18721/33A priority patent/GB415554A/en
Application granted granted Critical
Publication of US1919490A publication Critical patent/US1919490A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • lily invention relates to a new and improved source of light, to a new and 1m proved source of light rays, and to a new and improved method of operating a source of light and/or a source 01 light rays.
  • the invention includes the production of light rays which are within and without the visible spectrum, such as ultra-violet rays and the like.
  • @ne of the objects of my invention is to improve devices which include the useof a gas under low pressure, intermixed. wrtha metallic vapor.
  • Another object of my invention is to 1mprove devices of this character so as to secure stable operating conditions.
  • Fig. l diagrammatically illustrates one oi the embodiments of my invention.
  • Fig. 2 diagrammatically illustrates another torm of bulb or chamber.
  • Fig. 3 illustrates a third embodiment of my invention.
  • Fig. 4 illustrates a fourth embodiment of my invention, used in connection with an enclosed reflector.
  • Fig. 5 illustrates another embodiment of my invention.
  • the gas or gases. under suitable low pressure are located within a sealed vessel 5, said vessel Serial No. 620,403.
  • the vessel fi is located within a coil 4, so that the vessel 5 forms the core of said coil 4, which has no other core.
  • the coil 4 is connected by means of the leads 2 and 3, to a source 1 of the electric current. The voltage of the source 1 changes very rapidly.
  • the current which is supplied from the source 1 can be an alternating current of any suitable frequency, said frequency being preferably at least 10,000 cycles per second, while I generally operate on a ends of the coil t rapidly changes.
  • this ditlerence of potential at the ends of the coil 4 exceeds a certain value, the gas or gases within the container 5 are ionized, thus rendering said gas or gases conductive.
  • the electromagnetic efl'ect of the coil 4 maintains the gas or gases within the vessel 5 at the necessary high temperature, so that said vessel 5 serves as a source of light rays.
  • the vessel 5 merely contains gases, and especially one of the noble gases, such as neon, or one of the other gases of thisgroup, it is comparatively simple to produce high. luminescence.
  • the heated vessel 5 contains a mercury vapor which is heated to a temperature suflicient to cause the mercury vapor to i have high luminescence, the pressure of the' metallic vapor does not remain constant, but
  • the discharge through the metallic vapor will suddenly stop as soon as the vapor pressure exceeds a critical limit. In such event it is necessary to wait a relatively long period of time before the pressure within the container 5 will reduce sufficiently to allow the discharge to take place again. This is particularly objectionable if the vessel 5 is located within a reflector or within a device which surrounds the vessel 5 either partially or completely, as such reflector hinders the radiation of heat.
  • the c011- tainer or vessel is cooled so that either all or a part of the external wall of said vessel is cooled, so that excess pressure can be eliminated, and the pressure within the container 5 does not exceed the critical limit.
  • the improved container 6 which may have a spherical shape or any other desired shape, has a plurality of cooling chambers 7 and 8. There may be one or more of said cooling or condensing chambers, two of said condensing chambers being shown as illustrating one embodiment of the improvement.
  • the central part of the tube remains almost dark. It will be noted that the field of the coil 4 comprises the major portion of the tube or container.
  • the condensing chamber or chambers are thus located beyond the region of the are which is thus formed, so that the condensing chamber or chambers are relatively cool.
  • the volume of the condensing chamber or chambers is much less than the volume of the container 6.
  • the cooling or condensing chambers 7 and 8 are integral with the container 6. It is therefore possible to simply and economically manufacture the device.
  • the members 6, 7 and 8 in effect form a single chamber, the major portion of whichis within the field of the coil 4.
  • the improved device therefore makes it possible to automatically regulate the vapor pressure within the container 6, even if the amount of metal (mercury or other metal) which is introduced into the container 6 is many times too large to permit operating the vapor-arc without the cooling chamber or chambers.
  • the operation of the device is not critical so that a simple and easy and practical operation is secured.
  • the best shape and proportions necessarily vary with the shape and volume of each container.
  • the volume of the condensing chamber (if a single condensing chamber is utilized) should be about 3cubic cm., and said vessels should have substantially the configuration shown in Fig. 2, assuming that only a single condensing chamber is utilized.
  • the amount of mercury utilized is A; gram for energy up to 500 Watts.
  • an ordinary spherical container 5 can be utilized and the exterior wall of this can be cooled by means of an external air current which can be produced by a fan or the like.
  • the ultra-violet rays which are emitted through the wall of the container 5, ozonize and irradiate the air current, so that said air current can be used for various medical purposes, such as treating the hair or the like.
  • an induction mercury vapor arc lamp of the type shown which is partially surthe heat from the wall of the condensing chamber.
  • the metal member which closely contacts with the outer wall of the condensing chamber tends to cool the same.
  • an additional condensing chamber 7 may be provided so as to more e hciently condense the excess mercury vapor, and to take care of the fact that the condensed mer-v cury may fall out of the upper condensing chamber, if the light is downwardly directed.
  • the improved device having the condensing chambers, may be located within a reflector having a front wall 12, which is provided with a quartz tube 1%.
  • the tube it can also be made of glass or metal or of any other suitable reflecting material, in order to direct the rays which are reflected in the form of a concentrated parallel beam by the member
  • the member l l may be a solid rod of quartz or other suitable material.
  • the container 6 is completely enclosed and the condensing chambers and 8 must be made sufficiently large in order to condense the excess mercury.
  • the container in the embodiment shown in Fig.'5,-the container is located within a vessel 15.
  • J'Vater or milk or other liquid to be sterilized passes through the vessel in the direction of the arrow by means of a suitable inlet pipe 16 and a suitable outlet pipe 17.
  • the outlet pipe 17 may be provided with a regulating valve 18, and-any other suitable regulating means may be utilized in order to regulate the flow of the liquid through the vessel 15.
  • the inner wall of the vessel 15 is provided with projections 15a, in order to hold the container 5 in position.
  • the rays produced by the vessel 5 irradiate the milk or water or the like, and the container 5 is suliiciently cooled by the regulated passage of the liquid through the vessel 15.
  • the condensing chambers 7 and 8 as being sharply defined with respect to the container 6. However, this is not necessary and my invention is not to belimited thereto.
  • the essential feature is that the annular arc which is produced within the container is of'predetermined size, and a part of the wall of said container is sufiiciently spaced from said arc, so that said spaced part remains sufficiently cool to prevent the pressure within the container from exceeding the predetermined or critical limit.
  • the zone of the container in which the annular arc is produced may be defined as being the zone of direct luminescence.
  • a container As a new and improved article of manufacture, a container, an induction coil passing around a major portion of the wall of said container, a medium located within said container and adapted'to become excited into luminescence by the passage of an alternating current through said induction coil, so as to produce an arc of predetermined dimensions within said container, a minor portion of the wall of said container being sutliciently spaced from said arc so that the temperature of said spaced part of the wall remains sufficiently low to prevent the pressure within said container from exceeding a predetermined limit.
  • a container having therein a gas and mercury, said container having a spherical portion of relatively large volume, and a coil substantially surrounding said spherical portion so that said spherical portion is directly with the field of said coil, said spherical portion having an integral extension which is beyond the field of said coil and which has a smaller volume than said spherical portion.
  • a container having a gas and a vaporizable material located therein, a coil surrounding the major portion of said container, said coil being adapted, when the same is energized by the passage of an electric current through the same, to vaporize said material and to cause said gas and said vaporized material to emit light, said container having a minor portion of the wall thereof spaced fro thezone of direct luminescence.
  • a container having a gas and a vaporizable material located therein, a coil surrounding the major portion of said container, said coil being adapted, when the same is energized by the passage of an electric current through the same, to vaporize said material and to cause said gas and said vaporized material to emit light, said container having a condensing chamber integral therewith and sharply defined from that portion of the container which is surrounded by said coil, said Mill Illl
  • a method of producing light which consists in exciting into luminescence a gas which is located within an enclosed chamber and also exciting into luminescence a Vapor which is located within said enclosed chamber, so as .to produce a definite zone of direct luminescence, and allowing a part of said container which is beyond said zone to remain relalively cool in order to form a condensing chamber for said Vapor, the Volume of said condcnsing chamber being smaller than the volume of said zone, said gas andvapor being excited into luminescence by an electro-magnetic field which is produced external to said container. 4

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Spectrometry And Color Measurement (AREA)
US620403A 1932-07-01 1932-07-01 Source of light and method of operating the same Expired - Lifetime US1919490A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL39334D NL39334C (enrdf_load_stackoverflow) 1932-07-01
US620403A US1919490A (en) 1932-07-01 1932-07-01 Source of light and method of operating the same
DEL81905D DE615732C (de) 1932-07-01 1932-08-31 Elektrische Gasentladungslampe ohne Innenelektrode, deren Gas- oder Dampffuellung durch Fernwirkung eines Hochfrequenzfeldes zum Leuchten gebracht wird
FR758409D FR758409A (fr) 1932-07-01 1933-06-30 Lampe électrique à décharge en atmosphère gazeuse sans électrode interne
GB18721/33A GB415554A (en) 1932-07-01 1933-07-01 Improvements in and relating to gas discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US620403A US1919490A (en) 1932-07-01 1932-07-01 Source of light and method of operating the same

Publications (1)

Publication Number Publication Date
US1919490A true US1919490A (en) 1933-07-25

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ID=24485787

Family Applications (1)

Application Number Title Priority Date Filing Date
US620403A Expired - Lifetime US1919490A (en) 1932-07-01 1932-07-01 Source of light and method of operating the same

Country Status (5)

Country Link
US (1) US1919490A (enrdf_load_stackoverflow)
DE (1) DE615732C (enrdf_load_stackoverflow)
FR (1) FR758409A (enrdf_load_stackoverflow)
GB (1) GB415554A (enrdf_load_stackoverflow)
NL (1) NL39334C (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484332A (en) * 1944-09-09 1949-10-11 Emil R Capita Ultraviolet light apparatus
US2920408A (en) * 1956-09-17 1960-01-12 Reed Res Inc Electric display sign
US3042829A (en) * 1960-03-22 1962-07-03 Curtis J Humphreys Sapphire spectrum tube for microwave excitation
US3048738A (en) * 1960-03-22 1962-08-07 Jr Edward Paul Microwave excited spectrum tube with internal heater
US3170086A (en) * 1962-01-26 1965-02-16 Varian Associates Electrodeless discharge lamp apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109960A (en) * 1960-09-16 1963-11-05 Varian Associates Electrodeless discharge lamp apparatus
FR1318738A (fr) * 1962-01-10 1963-02-22 Csf Perfectionnements aux cellules de résonance pour pompage optique
US4812702A (en) * 1987-12-28 1989-03-14 General Electric Company Excitation coil for hid electrodeless discharge lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484332A (en) * 1944-09-09 1949-10-11 Emil R Capita Ultraviolet light apparatus
US2920408A (en) * 1956-09-17 1960-01-12 Reed Res Inc Electric display sign
US3042829A (en) * 1960-03-22 1962-07-03 Curtis J Humphreys Sapphire spectrum tube for microwave excitation
US3048738A (en) * 1960-03-22 1962-08-07 Jr Edward Paul Microwave excited spectrum tube with internal heater
US3170086A (en) * 1962-01-26 1965-02-16 Varian Associates Electrodeless discharge lamp apparatus

Also Published As

Publication number Publication date
GB415554A (en) 1934-08-30
NL39334C (enrdf_load_stackoverflow)
DE615732C (de) 1935-07-11
FR758409A (fr) 1934-01-17

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