SE418775B - Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap - Google Patents

Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap

Info

Publication number
SE418775B
SE418775B SE8005271A SE8005271A SE418775B SE 418775 B SE418775 B SE 418775B SE 8005271 A SE8005271 A SE 8005271A SE 8005271 A SE8005271 A SE 8005271A SE 418775 B SE418775 B SE 418775B
Authority
SE
Sweden
Prior art keywords
voltage
transformer
mains voltage
mains
khz
Prior art date
Application number
SE8005271A
Other languages
English (en)
Swedish (sv)
Other versions
SE8005271L (sv
Inventor
Rickard Gajecki
Original Assignee
Aos Metall Mek Verk
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20341457&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE418775(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aos Metall Mek Verk filed Critical Aos Metall Mek Verk
Priority to SE8005271A priority Critical patent/SE418775B/sv
Publication of SE418775B publication Critical patent/SE418775B/sv
Publication of SE8005271L publication Critical patent/SE8005271L/xx
Priority to PCT/SE1981/000190 priority patent/WO1982000367A1/en
Priority to EP81902004A priority patent/EP0069121B1/en
Priority to AT81902004T priority patent/ATE17611T1/de
Priority to DE8181902004T priority patent/DE3173553D1/de
Priority to US06/359,669 priority patent/US4508995A/en
Priority to AU73257/81A priority patent/AU542514B2/en
Priority to NO820756A priority patent/NO820756L/no
Priority to DK117582A priority patent/DK117582A/da

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
    • 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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency AC, or with separate oscillator frequency
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • X-Ray Techniques (AREA)
  • Studio Devices (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Endoscopes (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Electrotherapy Devices (AREA)
  • Prostheses (AREA)
SE8005271A 1980-07-18 1980-07-18 Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap SE418775B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE8005271A SE418775B (sv) 1980-07-18 1980-07-18 Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap
AU73257/81A AU542514B2 (en) 1980-07-18 1981-06-26 A method of eliminating discomforting flickering when viewingx-ray film in a light cabinet, and a flicker-eliminating unit for use in a light cabinet
US06/359,669 US4508995A (en) 1980-07-18 1981-06-26 Method of eliminating discomforting flickering when viewing X-ray film in a light cabinet, and a flicker-eliminating unit for use in a light cabinet
DE8181902004T DE3173553D1 (en) 1980-07-18 1981-06-26 A method of eliminating discomforting flickering when viewing x-ray film in a light cabinet, and a flicker-eliminating unit for use in a light cabinet
EP81902004A EP0069121B1 (en) 1980-07-18 1981-06-26 A method of eliminating discomforting flickering when viewing x-ray film in a light cabinet, and a flicker-eliminating unit for use in a light cabinet
PCT/SE1981/000190 WO1982000367A1 (en) 1980-07-18 1981-06-26 A method of eliminating discomforting flickering when viewing x-ray film in a light cabinet,and a flicker-eliminating unit for use in a light cabinet
AT81902004T ATE17611T1 (de) 1980-07-18 1981-06-26 Verfahren zum vermeiden von laestigen flimmern beim betrachten von roentgenfilmen mittels schaukasten und filmbetrachter zur anwendung des verfahrens.
NO820756A NO820756L (no) 1980-07-18 1982-03-10 Fremgangsmaate og anordning for aa eliminere flimmer som er aarsak til ubehag ved betraktning av roentgenfilm i et lysskap
DK117582A DK117582A (da) 1980-07-18 1982-03-17 Fremgangsmaade og apparat til fjernelse af ubehag-foraarsagende

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8005271A SE418775B (sv) 1980-07-18 1980-07-18 Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap

Publications (2)

Publication Number Publication Date
SE8005271L SE8005271L (sv) 1981-06-22
SE418775B true SE418775B (sv) 1981-06-22

Family

ID=20341457

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8005271A SE418775B (sv) 1980-07-18 1980-07-18 Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap

Country Status (9)

Country Link
US (1) US4508995A (da)
EP (1) EP0069121B1 (da)
AT (1) ATE17611T1 (da)
AU (1) AU542514B2 (da)
DE (1) DE3173553D1 (da)
DK (1) DK117582A (da)
NO (1) NO820756L (da)
SE (1) SE418775B (da)
WO (1) WO1982000367A1 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870327A (en) * 1987-07-27 1989-09-26 Avtech Corporation High frequency, electronic fluorescent lamp ballast
GB8822195D0 (en) * 1988-09-21 1988-10-26 W J Parry Nottm Ltd Improvements in/related to electronic ballast circuits
GB2224608A (en) * 1988-10-25 1990-05-09 Kenneth Alan Morecroft Discharge lamp operating circuit; revitalising dry batteries
DE4412779A1 (de) * 1994-04-18 1995-10-19 Abb Patent Gmbh Schaltungsanordnung zur Steuerung eines elektronischen Vorschaltgerätes für Leuchtstofflampen
US5528111A (en) * 1994-12-02 1996-06-18 Motorola, Inc. Ballast circuit for powering gas discharge lamp
BE1024604B1 (fr) 2016-09-26 2018-04-25 Patrick Moutschen Element de construction allonge creux

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193298B3 (da) * 1972-07-14 1976-07-02 Thorn Electrical Ind Ltd
US3969652A (en) * 1974-01-04 1976-07-13 General Electric Company Electronic ballast for gaseous discharge lamps
US3999100A (en) * 1975-05-19 1976-12-21 Morton B. Leskin Lamp power supply using a switching regulator and commutator
US4042856A (en) * 1975-10-28 1977-08-16 General Electric Company Chopper ballast for gaseous discharge lamps with auxiliary capacitor energy storage
US4170746A (en) * 1977-12-27 1979-10-09 General Electric Company High frequency operation of miniature metal vapor discharge lamps
US4240009A (en) * 1978-02-27 1980-12-16 Paul Jon D Electronic ballast
US4277728A (en) * 1978-05-08 1981-07-07 Stevens Luminoptics Power supply for a high intensity discharge or fluorescent lamp
US4188661A (en) * 1979-02-23 1980-02-12 Gte Sylvania Incorporated Direct drive ballast with starting circuit
JPS575293A (en) * 1980-06-12 1982-01-12 Matsushita Electric Industrial Co Ltd Device for firing high voltage discharge lamp
US4388562A (en) * 1980-11-06 1983-06-14 Astec Components, Ltd. Electronic ballast circuit

Also Published As

Publication number Publication date
EP0069121A1 (en) 1983-01-12
AU7325781A (en) 1982-02-16
DK117582A (da) 1982-03-17
SE8005271L (sv) 1981-06-22
ATE17611T1 (de) 1986-02-15
EP0069121B1 (en) 1986-01-22
DE3173553D1 (en) 1986-03-06
NO820756L (no) 1982-03-10
AU542514B2 (en) 1985-02-21
US4508995A (en) 1985-04-02
WO1982000367A1 (en) 1982-02-04

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