SE8005271L - 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 ljusskapInfo
- Publication number
- SE8005271L SE8005271L SE8005271A SE8005271A SE8005271L SE 8005271 L SE8005271 L SE 8005271L SE 8005271 A SE8005271 A SE 8005271A SE 8005271 A SE8005271 A SE 8005271A SE 8005271 L SE8005271 L SE 8005271L
- Authority
- SE
- Sweden
- Prior art keywords
- ray
- eliminating
- viewing
- pct
- uncomfortability
- Prior art date
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)
- Apparatus For Radiation Diagnosis (AREA)
- Studio Devices (AREA)
- Endoscopes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Prostheses (AREA)
- Electrotherapy Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8005271A SE8005271L (sv) | 1980-07-18 | 1980-07-18 | Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap |
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 |
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 |
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 |
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. |
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 |
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 SE8005271L (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 |
---|---|
SE418775B SE418775B (sv) | 1981-06-22 |
SE8005271L true SE8005271L (sv) | 1981-06-22 |
Family
ID=20341457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8005271A SE8005271L (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 (sv) |
EP (1) | EP0069121B1 (sv) |
AT (1) | ATE17611T1 (sv) |
AU (1) | AU542514B2 (sv) |
DE (1) | DE3173553D1 (sv) |
DK (1) | DK117582A (sv) |
NO (1) | NO820756L (sv) |
SE (1) | SE8005271L (sv) |
WO (1) | WO1982000367A1 (sv) |
Families Citing this family (6)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU68014A1 (sv) * | 1972-07-14 | 1973-10-03 | ||
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 Ind Co Ltd | Device for firing high voltage discharge lamp |
US4388562A (en) * | 1980-11-06 | 1983-06-14 | Astec Components, Ltd. | Electronic ballast circuit |
-
1980
- 1980-07-18 SE SE8005271A patent/SE8005271L/sv not_active IP Right Cessation
-
1981
- 1981-06-26 US US06/359,669 patent/US4508995A/en not_active Expired - Fee Related
- 1981-06-26 AU AU73257/81A patent/AU542514B2/en not_active Ceased
- 1981-06-26 EP EP81902004A patent/EP0069121B1/en not_active Expired
- 1981-06-26 WO PCT/SE1981/000190 patent/WO1982000367A1/en not_active Application Discontinuation
- 1981-06-26 AT AT81902004T patent/ATE17611T1/de not_active IP Right Cessation
- 1981-06-26 DE DE8181902004T patent/DE3173553D1/de not_active Expired
-
1982
- 1982-03-10 NO NO820756A patent/NO820756L/no unknown
- 1982-03-17 DK DK117582A patent/DK117582A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3173553D1 (en) | 1986-03-06 |
NO820756L (no) | 1982-03-10 |
US4508995A (en) | 1985-04-02 |
ATE17611T1 (de) | 1986-02-15 |
SE418775B (sv) | 1981-06-22 |
AU542514B2 (en) | 1985-02-21 |
WO1982000367A1 (en) | 1982-02-04 |
EP0069121A1 (en) | 1983-01-12 |
EP0069121B1 (en) | 1986-01-22 |
AU7325781A (en) | 1982-02-16 |
DK117582A (da) | 1982-03-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2066155B (en) | Multilayer light reflecting film | |
DE69508413D1 (de) | Reinigungsgerät | |
JPS5750702A (en) | Multiplex effect light source used as projector for photograph, movie, television or optical panel or illuminator | |
DE3374612D1 (en) | A hologram viewing apparatus, an integral direct viewing hologram device and an article useful in the manufacture of hologram devices | |
SE8005271L (sv) | Sett och anordning for att eliminera obehag fororsakande flimmer vid betraktande av rontgenfilm i ljusskap | |
DE3473914D1 (en) | An artificial light source device | |
CH609194GA3 (en) | Electro-optical passive display device | |
DK491D0 (da) | Apparat til vaadbehandling af fotografiske film | |
JPS524200A (en) | Fluorescence eye catcher sigh-board by stimulation of ultra-violet ray s | |
JPS577087A (en) | Thin film electroluminescent light source element | |
SE8008809L (sv) | Film- och fotobelysningsarmatur | |
JPS53107268A (en) | Exposing method for fluorescent screen | |
JPS5313395A (en) | Lighting equipment of light-receiving-type display unit | |
IT8467540A1 (it) | Camera di miscelazione della luce per un apparecchio ingranditore o copiatore fotografico. | |
JPS55144228A (en) | Full surface exposure device | |
JPS538012A (en) | Facsimile trnsmission unit | |
SU112081A1 (ru) | Способ комбинированной съемки и экран, дл выполнени этого способа | |
JPS5646263A (en) | Original lighting device of electronic copying machine | |
DE3173808D1 (en) | Photographic enlarger with pinpoint light source | |
ES282114U (es) | Aparato de iluminacion para tomas de imagen y similares. | |
JPS5337377A (en) | Exposure device for fluorescent surface formation of color receiving tube | |
JPS53137136A (en) | Illuminating system | |
JPS52138918A (en) | Data photographing device for camera | |
JPS54144898A (en) | Liquid crystal display unit | |
ES8202419A1 (es) | Metodo de iluminacion mediante fuentes luminosas intensas de pequeno tamano |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8005271-5 Effective date: 19890727 Format of ref document f/p: F |