NL165885C - LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP. - Google Patents
LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP.Info
- Publication number
- NL165885C NL165885C NL7002894.A NL7002894A NL165885C NL 165885 C NL165885 C NL 165885C NL 7002894 A NL7002894 A NL 7002894A NL 165885 C NL165885 C NL 165885C
- Authority
- NL
- Netherlands
- Prior art keywords
- low pressure
- discharge lamp
- vapor discharge
- pressure sodium
- sodium vapor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7002894.A NL165885C (en) | 1970-02-28 | 1970-02-28 | LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
BE749235D BE749235A (en) | 1970-02-28 | 1970-04-20 | LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP |
FR7014805A FR2080287A5 (en) | 1970-02-28 | 1970-04-23 | |
DE2027265A DE2027265C3 (en) | 1970-02-28 | 1970-06-03 | Low pressure sodium vapor discharge lamp |
GB26828/70A GB1243000A (en) | 1970-02-28 | 1970-06-03 | Low-pressure sodium vapour discharge lamp |
JP45049234A JPS4942396B1 (en) | 1970-02-28 | 1970-06-09 | |
US48045A US3646378A (en) | 1970-02-28 | 1970-06-22 | Low-pressure sodium vapor discharge lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7002894.A NL165885C (en) | 1970-02-28 | 1970-02-28 | LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7002894A NL7002894A (en) | 1971-08-31 |
NL165885B NL165885B (en) | 1980-12-15 |
NL165885C true NL165885C (en) | 1981-05-15 |
Family
ID=19809463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7002894.A NL165885C (en) | 1970-02-28 | 1970-02-28 | LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
Country Status (7)
Country | Link |
---|---|
US (1) | US3646378A (en) |
JP (1) | JPS4942396B1 (en) |
BE (1) | BE749235A (en) |
DE (1) | DE2027265C3 (en) |
FR (1) | FR2080287A5 (en) |
GB (1) | GB1243000A (en) |
NL (1) | NL165885C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4731560A (en) * | 1970-08-06 | 1988-03-15 | Owens-Illinois Television Products, Inc. | Multiple gaseous discharge display/memory panel having improved operating life |
US4794308A (en) * | 1970-08-06 | 1988-12-27 | Owens-Illinois Television Products Inc. | Multiple gaseous discharge display/memory panel having improved operating life |
US4028578A (en) * | 1973-02-16 | 1977-06-07 | Owens-Illinois, Inc. | Gas discharge dielectric containing a source of boron, gallium, indium, or thallium |
US4080545A (en) * | 1976-12-27 | 1978-03-21 | Xerox Corporation | Sodium vapor lamp with emission aperture |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB817100A (en) * | 1955-12-22 | 1959-07-22 | Gen Electric Co Ltd | Improvements in or relating to electric discharge lamps |
FR1158700A (en) * | 1955-10-18 | 1958-06-18 | Philips Nv | Discharge tube, especially in sodium vapor and gas filled |
-
1970
- 1970-02-28 NL NL7002894.A patent/NL165885C/en not_active IP Right Cessation
- 1970-04-20 BE BE749235D patent/BE749235A/en unknown
- 1970-04-23 FR FR7014805A patent/FR2080287A5/fr not_active Expired
- 1970-06-03 DE DE2027265A patent/DE2027265C3/en not_active Expired
- 1970-06-03 GB GB26828/70A patent/GB1243000A/en not_active Expired
- 1970-06-09 JP JP45049234A patent/JPS4942396B1/ja active Pending
- 1970-06-22 US US48045A patent/US3646378A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2027265C3 (en) | 1978-12-14 |
BE749235A (en) | 1970-10-20 |
FR2080287A5 (en) | 1971-11-12 |
GB1243000A (en) | 1971-08-18 |
NL7002894A (en) | 1971-08-31 |
JPS4942396B1 (en) | 1974-11-14 |
NL165885B (en) | 1980-12-15 |
DE2027265B2 (en) | 1978-04-20 |
DE2027265A1 (en) | 1971-12-02 |
US3646378A (en) | 1972-02-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee |